Subtitles: same. Reput the correct new modifications.
authorJean-Baptiste Kempf <jb@videolan.org>
Sat, 1 Sep 2007 13:33:25 +0000 (13:33 +0000)
committerJean-Baptiste Kempf <jb@videolan.org>
Sat, 1 Sep 2007 13:33:25 +0000 (13:33 +0000)
modules/codec/subtitles/subsass.c
modules/codec/subtitles/subsdec.c
modules/codec/subtitles/subsusf.c

index 7ac9a5f..bbba604 100644 (file)
@@ -1,8 +1,8 @@
 /*****************************************************************************
- * subsdec.c : text subtitles decoder
+ * subsass.c : ASS/SSA subtitles decoder
  *****************************************************************************
  * Copyright (C) 2000-2006 the VideoLAN team
- * $Id$
+ * $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
  *
  * Authors: Gildas Bazin <gbazin@videolan.org>
  *          Samuel Hocevar <sam@zoy.org>
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-#include <vlc/vlc.h>
-#include <vlc_vout.h>
-#include <vlc_codec.h>
-#include <vlc_input.h>
-
-#include <vlc_osd.h>
-#include <vlc_filter.h>
-#include <vlc_image.h>
-#include <vlc_charset.h>
-#include <vlc_stream.h>
-#include <vlc_xml.h>
-#include <errno.h>
-#include <string.h>
-
-#define NO_BREAKING_SPACE  "&#160;"
-
-enum
-{
-    ATTRIBUTE_ALIGNMENT = (1 << 0),
-    ATTRIBUTE_X         = (1 << 1),
-    ATTRIBUTE_X_PERCENT = (1 << 2),
-    ATTRIBUTE_Y         = (1 << 3),
-    ATTRIBUTE_Y_PERCENT = (1 << 4),
-};
-
-typedef struct
-{
-    char       *psz_filename;
-    picture_t  *p_pic;
-} image_attach_t;
-
-typedef struct
-{
-    char *          psz_stylename; /* The name of the style, no comma's allowed */
-    text_style_t    font_style;
-    int             i_align;
-    int             i_margin_h;
-    int             i_margin_v;
-    int             i_margin_percent_h;
-    int             i_margin_percent_v;
-}  ssa_style_t;
-
-/*****************************************************************************
- * decoder_sys_t : decoder descriptor
- *****************************************************************************/
-struct decoder_sys_t
-{
-    vlc_bool_t          b_ass;                           /* The subs are ASS */
-    int                 i_original_height;
-    int                 i_original_width;
-    int                 i_align;          /* Subtitles alignment on the vout */
-    vlc_iconv_t         iconv_handle;            /* handle to iconv instance */
-    vlc_bool_t          b_autodetect_utf8;
-
-    ssa_style_t         **pp_ssa_styles;
-    int                 i_ssa_styles;
-
-    image_attach_t      **pp_images;
-    int                 i_images;
-};
-
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static int  OpenDecoder   ( vlc_object_t * );
-static void CloseDecoder  ( vlc_object_t * );
-
-static subpicture_t *DecodeBlock   ( decoder_t *, block_t ** );
-static subpicture_t *ParseText     ( decoder_t *, block_t * );
-static void         ParseSSAHeader ( decoder_t * );
-static void         ParseUSFHeader ( decoder_t * );
-static void         ParseUSFHeaderTags( decoder_t *, xml_reader_t * );
-static void         ParseSSAString ( decoder_t *, char *, subpicture_t * );
-static subpicture_region_t *ParseUSFString ( decoder_t *, char *, subpicture_t * );
-static void         ParseColor     ( decoder_t *, char *, int *, int * );
-static char        *StripTags      ( char * );
-static char        *CreateHtmlSubtitle ( char * );
-static char        *CreatePlainText( char * );
-static int          ParseImageAttachments( decoder_t *p_dec );
-static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color );
-
-#define DEFAULT_NAME "Default"
-#define MAX_LINE 8192
-
-/*****************************************************************************
- * Module descriptor.
- *****************************************************************************/
-static const char *ppsz_encodings[] = { DEFAULT_NAME, "ASCII", "UTF-8", "",
-    "ISO-8859-1", "CP1252", "MacRoman", "MacIceland","ISO-8859-15", "",
-    "ISO-8859-2", "CP1250", "MacCentralEurope", "MacCroatian", "MacRomania", "",
-    "ISO-8859-5", "CP1251", "MacCyrillic", "MacUkraine", "KOI8-R", "KOI8-U", "KOI8-RU", "",
-    "ISO-8859-6", "CP1256", "MacArabic", "",
-    "ISO-8859-7", "CP1253", "MacGreek", "",
-    "ISO-8859-8", "CP1255", "MacHebrew", "",
-    "ISO-8859-9", "CP1254", "MacTurkish", "",
-    "ISO-8859-13", "CP1257", "",
-    "ISO-2022-JP", "ISO-2022-JP-1", "ISO-2022-JP-2", "EUC-JP", "SHIFT_JIS", "",
-    "ISO-2022-CN", "ISO-2022-CN-EXT", "EUC-CN", "EUC-TW", "BIG5", "BIG5-HKSCS", "",
-    "ISO-2022-KR", "EUC-KR", "",
-    "MacThai", "KOI8-T", "",
-    "ISO-8859-3", "ISO-8859-4", "ISO-8859-10", "ISO-8859-14", "ISO-8859-16", "",
-    "CP850", "CP862", "CP866", "CP874", "CP932", "CP949", "CP950", "CP1133", "CP1258", "",
-    "Macintosh", "",
-    "UTF-7", "UTF-16", "UTF-16BE", "UTF-16LE", "UTF-32", "UTF-32BE", "UTF-32LE",
-    "C99", "JAVA", "UCS-2", "UCS-2BE", "UCS-2LE", "UCS-4", "UCS-4BE", "UCS-4LE", "",
-    "HZ", "GBK", "GB18030", "JOHAB", "ARMSCII-8",
-    "Georgian-Academy", "Georgian-PS", "TIS-620", "MuleLao-1", "VISCII", "TCVN",
-    "HPROMAN8", "NEXTSTEP" };
-/*
-SSA supports charset selection.
-The following known charsets are used:
-
-0 = Ansi - Western European
-1 = default
-2 = symbol
-3 = invalid
-77 = Mac
-128 = Japanese (Shift JIS)
-129 = Hangul
-130 = Johab
-134 = GB2312 Simplified Chinese
-136 = Big5 Traditional Chinese
-161 = Greek
-162 = Turkish
-163 = Vietnamese
-177 = Hebrew
-178 = Arabic
-186 = Baltic
-204 = Russian (Cyrillic)
-222 = Thai
-238 = Eastern European
-254 = PC 437
-*/
-
-static int  pi_justification[] = { 0, 1, 2 };
-static const char *ppsz_justification_text[] = {N_("Center"),N_("Left"),N_("Right")};
-
-#define ENCODING_TEXT N_("Subtitles text encoding")
-#define ENCODING_LONGTEXT N_("Set the encoding used in text subtitles")
-#define ALIGN_TEXT N_("Subtitles justification")
-#define ALIGN_LONGTEXT N_("Set the justification of subtitles")
-#define AUTODETECT_UTF8_TEXT N_("UTF-8 subtitles autodetection")
-#define AUTODETECT_UTF8_LONGTEXT N_("This enables automatic detection of " \
-            "UTF-8 encoding within subtitles files.")
-#define FORMAT_TEXT N_("Formatted Subtitles")
-#define FORMAT_LONGTEXT N_("Some subtitle formats allow for text formatting. " \
- "VLC partly implements this, but you can choose to disable all formatting.")
-
-
-vlc_module_begin();
-    set_shortname( _("Subtitles"));
-    set_description( _("Text subtitles decoder") );
-    set_capability( "decoder", 50 );
-    set_callbacks( OpenDecoder, CloseDecoder );
-    set_category( CAT_INPUT );
-    set_subcategory( SUBCAT_INPUT_SCODEC );
-
-    add_integer( "subsdec-align", 0, NULL, ALIGN_TEXT, ALIGN_LONGTEXT,
-                 VLC_FALSE );
-        change_integer_list( pi_justification, ppsz_justification_text, 0 );
-    add_string( "subsdec-encoding", DEFAULT_NAME, NULL,
-                ENCODING_TEXT, ENCODING_LONGTEXT, VLC_FALSE );
-        change_string_list( ppsz_encodings, 0, 0 );
-    add_bool( "subsdec-autodetect-utf8", VLC_TRUE, NULL,
-              AUTODETECT_UTF8_TEXT, AUTODETECT_UTF8_LONGTEXT, VLC_FALSE );
-    add_bool( "subsdec-formatted", VLC_TRUE, NULL, FORMAT_TEXT, FORMAT_LONGTEXT,
-                 VLC_FALSE );
-vlc_module_end();
-
-/*****************************************************************************
- * OpenDecoder: probe the decoder and return score
- *****************************************************************************
- * Tries to launch a decoder and return score so that the interface is able
- * to chose.
- *****************************************************************************/
-static int OpenDecoder( vlc_object_t *p_this )
-{
-    decoder_t     *p_dec = (decoder_t*)p_this;
-    decoder_sys_t *p_sys;
-    vlc_value_t    val;
-
-    if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','u','b','t') &&
-        p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') &&
-        p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
-    {
-        return VLC_EGENERIC;
-    }
-
-    p_dec->pf_decode_sub = DecodeBlock;
-
-    /* Allocate the memory needed to store the decoder's structure */
-    if( ( p_dec->p_sys = p_sys =
-          (decoder_sys_t *)calloc(1, sizeof(decoder_sys_t)) ) == NULL )
-    {
-        msg_Err( p_dec, "out of memory" );
-        return VLC_ENOMEM;
-    }
-
-    /* init of p_sys */
-    p_sys->i_align = 0;
-    p_sys->iconv_handle = (vlc_iconv_t)-1;
-    p_sys->b_autodetect_utf8 = VLC_FALSE;
-    p_sys->b_ass = VLC_FALSE;
-    p_sys->i_original_height = -1;
-    p_sys->i_original_width = -1;
-    TAB_INIT( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
-    TAB_INIT( p_sys->i_images, p_sys->pp_images );
-
-    char *psz_charset = NULL;
-    /* First try demux-specified encoding */
-    if( p_dec->fmt_in.subs.psz_encoding && *p_dec->fmt_in.subs.psz_encoding )
-    {
-        psz_charset = strdup (p_dec->fmt_in.subs.psz_encoding);
-        msg_Dbg (p_dec, "trying demuxer-specified character encoding: %s",
-                 p_dec->fmt_in.subs.psz_encoding ?: "not specified");
-    }
-
-    /* Second, try configured encoding */
-    if (psz_charset == NULL)
-    {
-        psz_charset = var_CreateGetNonEmptyString (p_dec, "subsdec-encoding");
-        if ((psz_charset != NULL) && !strcasecmp (psz_charset, DEFAULT_NAME))
-        {
-            free (psz_charset);
-            psz_charset = NULL;
-        }
-
-        msg_Dbg (p_dec, "trying configured character encoding: %s",
-                 psz_charset ?: "not specified");
-    }
-
-    /* Third, try "local" encoding with optional UTF-8 autodetection */
-    if (psz_charset == NULL)
-    {
-        psz_charset = strdup (GetFallbackEncoding ());
-        msg_Dbg (p_dec, "trying default character encoding: %s",
-                 psz_charset ?: "not specified");
-
-        if (var_CreateGetBool (p_dec, "subsdec-autodetect-utf8"))
-        {
-            msg_Dbg (p_dec, "using automatic UTF-8 detection");
-            p_sys->b_autodetect_utf8 = VLC_TRUE;
-        }
-    }
-
-    if (psz_charset == NULL)
-    {
-        psz_charset = strdup ("UTF-8");
-        msg_Dbg (p_dec, "trying hard-coded character encoding: %s",
-                 psz_charset ?: "error");
-    }
-
-    if (psz_charset == NULL)
-    {
-        free (p_sys);
-        return VLC_ENOMEM;
-    }
-
-    if (strcasecmp (psz_charset, "UTF-8") && strcasecmp (psz_charset, "utf8"))
-    {
-        p_sys->iconv_handle = vlc_iconv_open ("UTF-8", psz_charset);
-        if (p_sys->iconv_handle == (vlc_iconv_t)(-1))
-            msg_Err (p_dec, "cannot convert from %s: %s", psz_charset,
-                     strerror (errno));
-    }
-    free (psz_charset);
-
-    var_Create( p_dec, "subsdec-align", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
-    var_Get( p_dec, "subsdec-align", &val );
-    p_sys->i_align = val.i_int;
-
-    ParseImageAttachments( p_dec );
-
-    if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-    {
-        if( p_dec->fmt_in.i_extra > 0 )
-            ParseSSAHeader( p_dec );
-    }
-    else if( p_dec->fmt_in.i_codec == VLC_FOURCC('u','s','f',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-    {
-        if( p_dec->fmt_in.i_extra > 0 )
-            ParseUSFHeader( p_dec );
-    }
-
-    return VLC_SUCCESS;
-}
-
-/****************************************************************************
- * DecodeBlock: the whole thing
- ****************************************************************************
- * This function must be fed with complete subtitles units.
- ****************************************************************************/
-static subpicture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
-{
-    subpicture_t *p_spu = NULL;
-
-    if( !pp_block || *pp_block == NULL ) return NULL;
-
-    p_spu = ParseText( p_dec, *pp_block );
-
-    block_Release( *pp_block );
-    *pp_block = NULL;
-
-    return p_spu;
-}
-
-/*****************************************************************************
- * CloseDecoder: clean up the decoder
- *****************************************************************************/
-static void CloseDecoder( vlc_object_t *p_this )
-{
-    decoder_t *p_dec = (decoder_t *)p_this;
-    decoder_sys_t *p_sys = p_dec->p_sys;
-
-    if( p_sys->iconv_handle != (vlc_iconv_t)-1 )
-        vlc_iconv_close( p_sys->iconv_handle );
-
-    if( p_sys->pp_ssa_styles )
-    {
-        int i;
-        for( i = 0; i < p_sys->i_ssa_styles; i++ )
-        {
-            if( !p_sys->pp_ssa_styles[i] )
-                continue;
-
-            if( p_sys->pp_ssa_styles[i]->psz_stylename )
-                free( p_sys->pp_ssa_styles[i]->psz_stylename );
-            if( p_sys->pp_ssa_styles[i]->font_style.psz_fontname )
-                free( p_sys->pp_ssa_styles[i]->font_style.psz_fontname );
-            if( p_sys->pp_ssa_styles[i] )
-                free( p_sys->pp_ssa_styles[i] );
-        }
-        TAB_CLEAN( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
-    }
-    if( p_sys->pp_images )
-    {
-        int i;
-        for( i = 0; i < p_sys->i_images; i++ )
-        {
-            if( !p_sys->pp_images[i] )
-                continue;
-
-            if( p_sys->pp_images[i]->p_pic )
-                p_sys->pp_images[i]->p_pic->pf_release( p_sys->pp_images[i]->p_pic );
-            if( p_sys->pp_images[i]->psz_filename )
-                free( p_sys->pp_images[i]->psz_filename );
-
-            free( p_sys->pp_images[i] );
-        }
-        TAB_CLEAN( p_sys->i_images, p_sys->pp_images );
-    }
-
-    free( p_sys );
-}
-
-/*****************************************************************************
- * ParseText: parse an text subtitle packet and send it to the video output
- *****************************************************************************/
-static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
-{
-    decoder_sys_t *p_sys = p_dec->p_sys;
-    subpicture_t *p_spu = NULL;
-    char *psz_subtitle = NULL;
-    video_format_t fmt;
-
-    /* We cannot display a subpicture with no date */
-    if( p_block->i_pts == 0 )
-    {
-        msg_Warn( p_dec, "subtitle without a date" );
-        return NULL;
-    }
-
-    /* Check validity of packet data */
-    /* An "empty" line containing only \0 can be used to force
-       and ephemer picture from the screen */
-    if( p_block->i_buffer < 1 )
-    {
-        msg_Warn( p_dec, "no subtitle data" );
-        return NULL;
-    }
-
-    /* Should be resiliant against bad subtitles */
-    psz_subtitle = strndup( (const char *)p_block->p_buffer,
-                            p_block->i_buffer );
-    if( psz_subtitle == NULL )
-        return NULL;
-
-    if( p_sys->iconv_handle == (vlc_iconv_t)-1 )
-    {
-        if (EnsureUTF8( psz_subtitle ) == NULL)
-        {
-            msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
-                     "Try manually setting a character-encoding "
-                     "before you open the file.") );
-        }
-    }
-    else
-    {
-
-        if( p_sys->b_autodetect_utf8 )
-        {
-            if( IsUTF8( psz_subtitle ) == NULL )
-            {
-                msg_Dbg( p_dec, "invalid UTF-8 sequence: "
-                         "disabling UTF-8 subtitles autodetection" );
-                p_sys->b_autodetect_utf8 = VLC_FALSE;
-            }
-        }
-
-        if( !p_sys->b_autodetect_utf8 )
-        {
-            size_t inbytes_left = strlen( psz_subtitle );
-            size_t outbytes_left = 6 * inbytes_left;
-            char *psz_new_subtitle = malloc( outbytes_left + 1 );
-            char *psz_convert_buffer_out = psz_new_subtitle;
-            const char *psz_convert_buffer_in = psz_subtitle;
-
-            size_t ret = vlc_iconv( p_sys->iconv_handle,
-                                    &psz_convert_buffer_in, &inbytes_left,
-                                    &psz_convert_buffer_out, &outbytes_left );
-
-            *psz_convert_buffer_out++ = '\0';
-            free( psz_subtitle );
-
-            if( ( ret == (size_t)(-1) ) || inbytes_left )
-            {
-                free( psz_new_subtitle );
-                msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
-                        "Try manually setting a character-encoding "
-                                "before you open the file.") );
-                return NULL;
-            }
-
-            psz_subtitle = realloc( psz_new_subtitle,
-                                    psz_convert_buffer_out - psz_new_subtitle );
-        }
-    }
-
-    /* Create the subpicture unit */
-    p_spu = p_dec->pf_spu_buffer_new( p_dec );
-    if( !p_spu )
-    {
-        msg_Warn( p_dec, "can't get spu buffer" );
-        if( psz_subtitle ) free( psz_subtitle );
-        return NULL;
-    }
-
-    p_spu->b_pausable = VLC_TRUE;
-
-    /* Create a new subpicture region */
-    memset( &fmt, 0, sizeof(video_format_t) );
-    fmt.i_chroma = VLC_FOURCC('T','E','X','T');
-    fmt.i_aspect = 0;
-    fmt.i_width = fmt.i_height = 0;
-    fmt.i_x_offset = fmt.i_y_offset = 0;
-    p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
-    if( !p_spu->p_region )
-    {
-        msg_Err( p_dec, "cannot allocate SPU region" );
-        if( psz_subtitle ) free( psz_subtitle );
-        p_dec->pf_spu_buffer_del( p_dec, p_spu );
-        return NULL;
-    }
-
-    /* Decode and format the subpicture unit */
-    if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') &&
-        p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') )
-    {
-        /* Normal text subs, easy markup */
-        p_spu->p_region->i_align = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
-        p_spu->i_x = p_sys->i_align ? 20 : 0;
-        p_spu->i_y = 10;
-
-        /* Remove formatting from string */
-
-        p_spu->p_region->psz_text = StripTags( psz_subtitle );
-        if( var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-        {
-            p_spu->p_region->psz_html = CreateHtmlSubtitle( psz_subtitle );
-        }
-
-        p_spu->i_start = p_block->i_pts;
-        p_spu->i_stop = p_block->i_pts + p_block->i_length;
-        p_spu->b_ephemer = (p_block->i_length == 0);
-        p_spu->b_absolute = VLC_FALSE;
-    }
-    else
-    {
-        /* Decode SSA/USF strings */
-        if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') )
-            ParseSSAString( p_dec, psz_subtitle, p_spu );
-        else
-        {
-            p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_spu->p_region );
-            p_spu->p_region = ParseUSFString( p_dec, psz_subtitle, p_spu );
-        }
-
-        p_spu->i_start = p_block->i_pts;
-        p_spu->i_stop = p_block->i_pts + p_block->i_length;
-        p_spu->b_ephemer = (p_block->i_length == 0);
-        p_spu->b_absolute = VLC_FALSE;
-        p_spu->i_original_picture_width = p_sys->i_original_width;
-        p_spu->i_original_picture_height = p_sys->i_original_height;
-    }
-    if( psz_subtitle ) free( psz_subtitle );
-
-    return p_spu;
-}
-
-static char *GrabAttributeValue( const char *psz_attribute,
-                                 const char *psz_tag_start )
-{
-    if( psz_attribute && psz_tag_start )
-    {
-        char *psz_tag_end = strchr( psz_tag_start, '>' );
-        char *psz_found   = strcasestr( psz_tag_start, psz_attribute );
-
-        if( psz_found )
-        {
-            psz_found += strlen( psz_attribute );
-
-            if(( *(psz_found++) == '=' ) &&
-               ( *(psz_found++) == '\"' ))
-            {
-                if( psz_found < psz_tag_end )
-                {
-                    int   i_len = strcspn( psz_found, "\"" );
-                    return strndup( psz_found, i_len );
-                }
-            }
-        }
-    }
-    return NULL;
-}
-
-static ssa_style_t *ParseStyle( decoder_sys_t *p_sys, char *psz_subtitle )
-{
-    ssa_style_t *p_style   = NULL;
-    char        *psz_style = GrabAttributeValue( "style", psz_subtitle );
-
-    if( psz_style )
-    {
-        int i;
-
-        for( i = 0; i < p_sys->i_ssa_styles; i++ )
-        {
-            if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
-                p_style = p_sys->pp_ssa_styles[i];
-        }
-        free( psz_style );
-    }
-    return p_style;
-}
-
-static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_x, int *i_y )
-{
-    int   i_mask = 0;
-
-    char *psz_align    = GrabAttributeValue( "alignment", psz_subtitle );
-    char *psz_margin_x = GrabAttributeValue( "horizontal-margin", psz_subtitle );
-    char *psz_margin_y = GrabAttributeValue( "vertical-margin", psz_subtitle );
-    /* -- UNSUPPORTED
-    char *psz_relative = GrabAttributeValue( "relative-to", psz_subtitle );
-    char *psz_rotate_x = GrabAttributeValue( "rotate-x", psz_subtitle );
-    char *psz_rotate_y = GrabAttributeValue( "rotate-y", psz_subtitle );
-    char *psz_rotate_z = GrabAttributeValue( "rotate-z", psz_subtitle );
-    */
-
-    *i_align = SUBPICTURE_ALIGN_BOTTOM;
-    *i_x = 0;
-    *i_y = 0;
-
-    if( psz_align )
-    {
-        if( !strcasecmp( "TopLeft", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT;
-        else if( !strcasecmp( "TopCenter", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_TOP;
-        else if( !strcasecmp( "TopRight", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT;
-        else if( !strcasecmp( "MiddleLeft", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_LEFT;
-        else if( !strcasecmp( "MiddleCenter", psz_align ) )
-            *i_align = 0;
-        else if( !strcasecmp( "MiddleRight", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_RIGHT;
-        else if( !strcasecmp( "BottomLeft", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT;
-        else if( !strcasecmp( "BottomCenter", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_BOTTOM;
-        else if( !strcasecmp( "BottomRight", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT;
-
-        i_mask |= ATTRIBUTE_ALIGNMENT;
-        free( psz_align );
-    }
-    if( psz_margin_x )
-    {
-        *i_x = atoi( psz_margin_x );
-        if( strchr( psz_margin_x, '%' ) )
-            i_mask |= ATTRIBUTE_X_PERCENT;
-        else
-            i_mask |= ATTRIBUTE_X;
-
-        free( psz_margin_x );
-    }
-    if( psz_margin_y )
-    {
-        *i_y = atoi( psz_margin_y );
-        if( strchr( psz_margin_y, '%' ) )
-            i_mask |= ATTRIBUTE_Y_PERCENT;
-        else
-            i_mask |= ATTRIBUTE_Y;
-
-        free( psz_margin_y );
-    }
-    return i_mask;
-}
-
-static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
-{
-    int           i_mask = 0;
-    int           i_align;
-    int           i_x, i_y;
-
-    i_mask = ParsePositionAttributeList( psz_subtitle, &i_align, &i_x, &i_y );
-
-    if( i_mask & ATTRIBUTE_ALIGNMENT )
-        p_region->i_align = i_align;
-
-    /* TODO: Setup % based offsets properly, without adversely affecting
-     *       everything else in vlc. Will address with separate patch, to
-     *       prevent this one being any more complicated.
-     */
-    if( i_mask & ATTRIBUTE_X )
-        p_region->i_x = i_x;
-    else if( i_mask & ATTRIBUTE_X_PERCENT )
-        p_region->i_x = 0;
-
-    if( i_mask & ATTRIBUTE_Y )
-        p_region->i_y = i_y;
-    else if( i_mask & ATTRIBUTE_Y_PERCENT )
-        p_region->i_y = 0;
-}
-
-static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
-                                              subpicture_t *p_spu,
-                                              char *psz_subtitle,
-                                              int i_len,
-                                              int i_sys_align )
-{
-    decoder_sys_t        *p_sys = p_dec->p_sys;
-    subpicture_region_t  *p_text_region;
-    video_format_t        fmt;
-
-    /* Create a new subpicture region */
-    memset( &fmt, 0, sizeof(video_format_t) );
-    fmt.i_chroma = VLC_FOURCC('T','E','X','T');
-    fmt.i_aspect = 0;
-    fmt.i_width = fmt.i_height = 0;
-    fmt.i_x_offset = fmt.i_y_offset = 0;
-    p_text_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
-
-    if( p_text_region != NULL )
-    {
-        ssa_style_t  *p_style = NULL;
-
-        p_text_region->psz_text = NULL;
-        p_text_region->psz_html = strndup( psz_subtitle, i_len );
-        if( ! p_text_region->psz_html )
-        {
-            msg_Err( p_dec, "out of memory" );
-            p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_text_region );
-            return NULL;
-        }
-
-        p_style = ParseStyle( p_sys, p_text_region->psz_html );
-        if( !p_style )
-        {
-            int i;
-
-            for( i = 0; i < p_sys->i_ssa_styles; i++ )
-            {
-                if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
-                    p_style = p_sys->pp_ssa_styles[i];
-            }
-        }
-
-        if( p_style )
-        {
-            msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename );
-
-            p_text_region->p_style = &p_style->font_style;
-            p_text_region->i_align = p_style->i_align;
-
-            /* TODO: Setup % based offsets properly, without adversely affecting
-             *       everything else in vlc. Will address with separate patch,
-             *       to prevent this one being any more complicated.
-
-                     * p_style->i_margin_percent_h;
-                     * p_style->i_margin_percent_v;
-             */
-            p_text_region->i_x         = p_style->i_margin_h;
-            p_text_region->i_y         = p_style->i_margin_v;
-
-        }
-        else
-        {
-            p_text_region->i_align = SUBPICTURE_ALIGN_BOTTOM | i_sys_align;
-            p_text_region->i_x = i_sys_align ? 20 : 0;
-            p_text_region->i_y = 10;
-        }
-        /* Look for position arguments which may override the style-based
-         * defaults.
-         */
-        SetupPositions( p_text_region, psz_subtitle );
-
-        p_text_region->p_next = NULL;
-    }
-    return p_text_region;
-}
-
-static subpicture_region_t *ParseUSFString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
-{
-    decoder_sys_t        *p_sys = p_dec->p_sys;
-    subpicture_t         *p_spu = p_spu_in;
-    subpicture_region_t  *p_region_first = NULL;
-    subpicture_region_t  *p_region_upto  = p_region_first;
-
-    while( *psz_subtitle )
-    {
-        if( *psz_subtitle == '<' )
-        {
-            char *psz_end = NULL;
-
-            if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
-               ( !strncasecmp( psz_subtitle, "<text>", 6 )))
-            {
-                psz_end = strcasestr( psz_subtitle, "</text>" );
-
-                if( psz_end )
-                {
-                    subpicture_region_t  *p_text_region;
-
-                    psz_end += strcspn( psz_end, ">" ) + 1;
-
-                    p_text_region = CreateTextRegion( p_dec,
-                                                      p_spu,
-                                                      psz_subtitle,
-                                                      psz_end - psz_subtitle,
-                                                      p_sys->i_align );
-
-                    if( p_text_region )
-                    {
-                        p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
-
-                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-                        {
-                            free( p_text_region->psz_html );
-                            p_text_region->psz_html = NULL;
-                        }
-                    }
-
-                    if( !p_region_first )
-                    {
-                        p_region_first = p_region_upto = p_text_region;
-                    }
-                    else if( p_text_region )
-                    {
-                        p_region_upto->p_next = p_text_region;
-                        p_region_upto = p_region_upto->p_next;
-                    }
-                }
-            }
-            else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
-                    ( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
-            {
-                psz_end = strcasestr( psz_subtitle, "</karaoke>" );
-
-                if( psz_end )
-                {
-                    subpicture_region_t  *p_text_region;
-
-                    psz_end += strcspn( psz_end, ">" ) + 1;
-
-                    p_text_region = CreateTextRegion( p_dec,
-                                                      p_spu,
-                                                      psz_subtitle,
-                                                      psz_end - psz_subtitle,
-                                                      p_sys->i_align );
-
-                    if( p_text_region )
-                    {
-                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-                        {
-                            free( p_text_region->psz_html );
-                            p_text_region->psz_html = NULL;
-                        }
-                    }
-                    if( !p_region_first )
-                    {
-                        p_region_first = p_region_upto = p_text_region;
-                    }
-                    else if( p_text_region )
-                    {
-                        p_region_upto->p_next = p_text_region;
-                        p_region_upto = p_region_upto->p_next;
-                    }
-                }
-            }
-            else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
-                    ( !strncasecmp( psz_subtitle, "<image>", 7 )))
-            {
-                subpicture_region_t *p_image_region = NULL;
-
-                char *psz_end = strcasestr( psz_subtitle, "</image>" );
-                char *psz_content = strchr( psz_subtitle, '>' );
-                int   i_transparent = -1;
-
-                /* If a colorkey parameter is specified, then we have to map
-                 * that index in the picture through as transparent (it is
-                 * required by the USF spec but is also recommended that if the
-                 * creator really wants a transparent colour that they use a
-                 * type like PNG that properly supports it; this goes doubly
-                 * for VLC because the pictures are stored internally in YUV
-                 * and the resulting colour-matching may not produce the
-                 * desired results.)
-                 */
-                char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
-                if( psz_tmp )
-                {
-                    if( *psz_tmp == '#' )
-                        i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
-                    free( psz_tmp );
-                }
-                if( psz_content && ( psz_content < psz_end ) )
-                {
-                    char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
-                    if( psz_filename )
-                    {
-                        p_image_region = LoadEmbeddedImage( p_dec, p_spu, psz_filename, i_transparent );
-                        free( psz_filename );
-                    }
-                }
-
-                if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
-
-                if( p_image_region )
-                {
-                    SetupPositions( p_image_region, psz_subtitle );
-
-                    p_image_region->p_next   = NULL;
-                    p_image_region->psz_text = NULL;
-                    p_image_region->psz_html = NULL;
-
-                }
-                if( !p_region_first )
-                {
-                    p_region_first = p_region_upto = p_image_region;
-                }
-                else if( p_image_region )
-                {
-                    p_region_upto->p_next = p_image_region;
-                    p_region_upto = p_region_upto->p_next;
-                }
-            }
-            if( psz_end )
-                psz_subtitle = psz_end - 1;
-
-            psz_subtitle += strcspn( psz_subtitle, ">" );
-        }
-
-        psz_subtitle++;
-    }
+#include "subsdec.h"
 
-    return p_region_first;
-}
 
-static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
+void ParseSSAString( decoder_t *p_dec,
+                     char *psz_subtitle,
+                     subpicture_t *p_spu_in )
 {
     /* We expect MKV formatted SSA:
      * ReadOrder, Layer, Style, CharacterName, MarginL, MarginR,
@@ -1021,29 +145,14 @@ static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *
     }
 }
 
-static char* GotoNextLine( char *psz_text )
-{
-    char *p_newline = psz_text;
-
-    while( p_newline[0] != '\0' )
-    {
-        if( p_newline[0] == '\n' || p_newline[0] == '\r' )
-        {
-            p_newline++;
-            while( p_newline[0] == '\n' || p_newline[0] == '\r' )
-                p_newline++;
-            break;
-        }
-        else p_newline++;
-    }
-    return p_newline;
-}
-
 /*****************************************************************************
  * ParseColor: SSA stores color in BBGGRR, in ASS it uses AABBGGRR
  * The string value in the string can be a pure integer, or hexadecimal &HBBGGRR
  *****************************************************************************/
-static void ParseColor( decoder_t *p_dec, char *psz_color, int *pi_color, int *pi_alpha )
+static void ParseColor( decoder_t *p_dec,
+                        char *psz_color,
+                        int *pi_color,
+                        int *pi_alpha )
 {
     int i_color = 0;
     if( !strncasecmp( psz_color, "&H", 2 ) )
@@ -1062,455 +171,10 @@ static void ParseColor( decoder_t *p_dec, char *psz_color, int *pi_color, int *p
         *pi_alpha = ( i_color & 0xFF000000 ) >> 24;
 }
 
-static int ParseImageAttachments( decoder_t *p_dec )
-{
-    decoder_sys_t        *p_sys = p_dec->p_sys;
-    input_attachment_t  **pp_attachments;
-    int                   i_attachments_cnt;
-    int                   k = 0;
-
-    if( VLC_SUCCESS != decoder_GetInputAttachments( p_dec, &pp_attachments, &i_attachments_cnt ))
-        return VLC_EGENERIC;
-
-    for( k = 0; k < i_attachments_cnt; k++ )
-    {
-        input_attachment_t *p_attach = pp_attachments[k];
-
-        vlc_fourcc_t  type  = 0;
-
-        if( ( !strcmp( p_attach->psz_mime, "image/bmp" ) )      || /* BMP */
-            ( !strcmp( p_attach->psz_mime, "image/x-bmp" ) )    ||
-            ( !strcmp( p_attach->psz_mime, "image/x-bitmap" ) ) ||
-            ( !strcmp( p_attach->psz_mime, "image/x-ms-bmp" ) ) )
-        {
-             type = VLC_FOURCC('b','m','p',' ');
-        }
-        else if( ( !strcmp( p_attach->psz_mime, "image/x-portable-anymap" ) )  || /* PNM */
-                 ( !strcmp( p_attach->psz_mime, "image/x-portable-bitmap" ) )  || /* PBM */
-                 ( !strcmp( p_attach->psz_mime, "image/x-portable-graymap" ) ) || /* PGM */
-                 ( !strcmp( p_attach->psz_mime, "image/x-portable-pixmap" ) ) )   /* PPM */
-        {
-            type = VLC_FOURCC('p','n','m',' ');
-        }
-        else if ( !strcmp( p_attach->psz_mime, "image/gif" ) )         /* GIF */
-            type = VLC_FOURCC('g','i','f',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/jpeg" ) )        /* JPG, JPEG */
-            type = VLC_FOURCC('j','p','e','g');
-        else if ( !strcmp( p_attach->psz_mime, "image/pcx" ) )         /* PCX */
-            type = VLC_FOURCC('p','c','x',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/png" ) )         /* PNG */
-            type = VLC_FOURCC('p','n','g',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/tiff" ) )        /* TIF, TIFF */
-            type = VLC_FOURCC('t','i','f','f');
-        else if ( !strcmp( p_attach->psz_mime, "image/x-tga" ) )       /* TGA */
-            type = VLC_FOURCC('t','g','a',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/x-xpixmap") )    /* XPM */
-            type = VLC_FOURCC('x','p','m',' ');
-
-        if( ( type != 0 ) &&
-            ( p_attach->i_data > 0 ) &&
-            ( p_attach->p_data != NULL ) )
-        {
-            picture_t         *p_pic = NULL;
-            image_handler_t   *p_image;
-
-            p_image = image_HandlerCreate( p_dec );
-            if( p_image != NULL )
-            {
-                block_t   *p_block;
-
-                p_block = block_New( p_image->p_parent, p_attach->i_data );
-
-                if( p_block != NULL )
-                {
-                    video_format_t     fmt_in;
-                    video_format_t     fmt_out;
-
-                    memcpy( p_block->p_buffer, p_attach->p_data, p_attach->i_data );
-
-                    memset( &fmt_in,  0, sizeof( video_format_t));
-                    memset( &fmt_out, 0, sizeof( video_format_t));
-
-                    fmt_in.i_chroma  = type;
-                    fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
-
-                    /* Find a suitable decoder module */
-                    if( module_Exists( p_dec, "SDL Image decoder" ) )
-                    {
-                        /* ffmpeg thinks it can handle bmp properly but it can't (at least
-                         * not all of them), so use sdl_image if it is available */
-
-                        vlc_value_t val;
-
-                        var_Create( p_dec, "codec", VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
-                        val.psz_string = (char*) "sdl_image";
-                        var_Set( p_dec, "codec", val );
-                    }
-
-                    p_pic = image_Read( p_image, p_block, &fmt_in, &fmt_out );
-                    var_Destroy( p_dec, "codec" );
-                }
-
-                image_HandlerDelete( p_image );
-            }
-            if( p_pic )
-            {
-                image_attach_t *p_picture = malloc( sizeof(image_attach_t) );
-
-                if( p_picture )
-                {
-                    p_picture->psz_filename = strdup( p_attach->psz_name );
-                    p_picture->p_pic = p_pic;
-
-                    TAB_APPEND( p_sys->i_images, p_sys->pp_images, p_picture );
-                }
-            }
-        }
-        vlc_input_attachment_Delete( pp_attachments[ k ] );
-    }
-    free( pp_attachments );
-
-    return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * ParseUSFHeader: Retrieve global formatting information etc
- *****************************************************************************/
-static void ParseUSFHeader( decoder_t *p_dec )
-{
-    stream_t      *p_sub = NULL;
-    xml_t         *p_xml = NULL;
-    xml_reader_t  *p_xml_reader = NULL;
-
-    p_sub = stream_MemoryNew( VLC_OBJECT(p_dec),
-                              p_dec->fmt_in.p_extra,
-                              p_dec->fmt_in.i_extra,
-                              VLC_TRUE );
-    if( !p_sub )
-        return;
-
-    p_xml = xml_Create( p_dec );
-    if( p_xml )
-    {
-        p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
-        if( p_xml_reader )
-        {
-            /* Look for Root Node */
-            if( xml_ReaderRead( p_xml_reader ) == 1 )
-            {
-                char *psz_node = xml_ReaderName( p_xml_reader );
-
-                if( !strcasecmp( "usfsubtitles", psz_node ) )
-                    ParseUSFHeaderTags( p_dec, p_xml_reader );
-
-                free( psz_node );
-            }
-
-            xml_ReaderDelete( p_xml, p_xml_reader );
-        }
-        xml_Delete( p_xml );
-    }
-    stream_Delete( p_sub );
-}
-
-static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
-{
-    decoder_sys_t *p_sys = p_dec->p_sys;
-    char *psz_node;
-    ssa_style_t *p_style = NULL;
-    int i_style_level = 0;
-    int i_metadata_level = 0;
-
-    while ( xml_ReaderRead( p_xml_reader ) == 1 )
-    {
-        switch ( xml_ReaderNodeType( p_xml_reader ) )
-        {
-            case XML_READER_TEXT:
-            case XML_READER_NONE:
-                break;
-            case XML_READER_ENDELEM:
-                psz_node = xml_ReaderName( p_xml_reader );
-
-                if( !psz_node )
-                    break;
-                switch (i_style_level)
-                {
-                    case 0:
-                        if( !strcasecmp( "metadata", psz_node ) && (i_metadata_level == 1) )
-                        {
-                            i_metadata_level--;
-                        }
-                        break;
-                    case 1:
-                        if( !strcasecmp( "styles", psz_node ) )
-                        {
-                            i_style_level--;
-                        }
-                        break;
-                    case 2:
-                        if( !strcasecmp( "style", psz_node ) )
-                        {
-                            TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
-
-                            p_style = NULL;
-                            i_style_level--;
-                        }
-                        break;
-                }
-
-                free( psz_node );
-                break;
-            case XML_READER_STARTELEM:
-                psz_node = xml_ReaderName( p_xml_reader );
-
-                if( !psz_node )
-                    break;
-
-                if( !strcasecmp( "metadata", psz_node ) && (i_style_level == 0) )
-                {
-                    i_metadata_level++;
-                }
-                else if( !strcasecmp( "resolution", psz_node ) && (i_metadata_level == 1) )
-                {
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "x", psz_name ) )
-                                p_sys->i_original_width = atoi( psz_value );
-                            else if( !strcasecmp( "y", psz_name ) )
-                                p_sys->i_original_height = atoi( psz_value );
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-                else if( !strcasecmp( "styles", psz_node ) && (i_style_level == 0) )
-                {
-                    i_style_level++;
-                }
-                else if( !strcasecmp( "style", psz_node ) && (i_style_level == 1) )
-                {
-                    i_style_level++;
-
-                    p_style = calloc( 1, sizeof(ssa_style_t) );
-                    if( ! p_style )
-                    {
-                        msg_Err( p_dec, "out of memory" );
-                        free( psz_node );
-                        break;
-                    }
-                    /* All styles are supposed to default to Default, and then
-                     * one or more settings are over-ridden.
-                     * At the moment this only effects styles defined AFTER
-                     * Default in the XML
-                     */
-                    int i;
-                    for( i = 0; i < p_sys->i_ssa_styles; i++ )
-                    {
-                        if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
-                        {
-                            ssa_style_t *p_default_style = p_sys->pp_ssa_styles[i];
-
-                            memcpy( p_style, p_default_style, sizeof( ssa_style_t ) );
-                            p_style->font_style.psz_fontname = strdup( p_style->font_style.psz_fontname );
-                            p_style->psz_stylename = NULL;
-                        }
-                    }
-
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "name", psz_name ) )
-                                p_style->psz_stylename = strdup( psz_value);
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-                else if( !strcasecmp( "fontstyle", psz_node ) && (i_style_level == 2) )
-                {
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "face", psz_name ) )
-                            {
-                                if( p_style->font_style.psz_fontname ) free( p_style->font_style.psz_fontname );
-                                p_style->font_style.psz_fontname = strdup( psz_value );
-                            }
-                            else if( !strcasecmp( "size", psz_name ) )
-                            {
-                                if( ( *psz_value == '+' ) || ( *psz_value == '-' ) )
-                                {
-                                    int i_value = atoi( psz_value );
-
-                                    if( ( i_value >= -5 ) && ( i_value <= 5 ) )
-                                        p_style->font_style.i_font_size  += ( i_value * p_style->font_style.i_font_size ) / 10;
-                                    else if( i_value < -5 )
-                                        p_style->font_style.i_font_size  = - i_value;
-                                    else if( i_value > 5 )
-                                        p_style->font_style.i_font_size  = i_value;
-                                }
-                                else
-                                    p_style->font_style.i_font_size  = atoi( psz_value );
-                            }
-                            else if( !strcasecmp( "italic", psz_name ) )
-                            {
-                                if( !strcasecmp( "yes", psz_value ))
-                                    p_style->font_style.i_style_flags |= STYLE_ITALIC;
-                                else
-                                    p_style->font_style.i_style_flags &= ~STYLE_ITALIC;
-                            }
-                            else if( !strcasecmp( "weight", psz_name ) )
-                            {
-                                if( !strcasecmp( "bold", psz_value ))
-                                    p_style->font_style.i_style_flags |= STYLE_BOLD;
-                                else
-                                    p_style->font_style.i_style_flags &= ~STYLE_BOLD;
-                            }
-                            else if( !strcasecmp( "underline", psz_name ) )
-                            {
-                                if( !strcasecmp( "yes", psz_value ))
-                                    p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
-                                else
-                                    p_style->font_style.i_style_flags &= ~STYLE_UNDERLINE;
-                            }
-                            else if( !strcasecmp( "color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_font_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_font_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "outline-color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_outline_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_outline_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "outline-level", psz_name ) )
-                            {
-                                p_style->font_style.i_outline_width = atoi( psz_value );
-                            }
-                            else if( !strcasecmp( "shadow-color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_shadow_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_shadow_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "shadow-level", psz_name ) )
-                            {
-                                p_style->font_style.i_shadow_width = atoi( psz_value );
-                            }
-                            else if( !strcasecmp( "back-color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_karaoke_background_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_karaoke_background_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "spacing", psz_name ) )
-                            {
-                                p_style->font_style.i_spacing = atoi( psz_value );
-                            }
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-                else if( !strcasecmp( "position", psz_node ) && (i_style_level == 2) )
-                {
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "alignment", psz_name ) )
-                            {
-                                if( !strcasecmp( "TopLeft", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT;
-                                else if( !strcasecmp( "TopCenter", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_TOP;
-                                else if( !strcasecmp( "TopRight", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT;
-                                else if( !strcasecmp( "MiddleLeft", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_LEFT;
-                                else if( !strcasecmp( "MiddleCenter", psz_value ) )
-                                    p_style->i_align = 0;
-                                else if( !strcasecmp( "MiddleRight", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_RIGHT;
-                                else if( !strcasecmp( "BottomLeft", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT;
-                                else if( !strcasecmp( "BottomCenter", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_BOTTOM;
-                                else if( !strcasecmp( "BottomRight", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT;
-                            }
-                            else if( !strcasecmp( "horizontal-margin", psz_name ) )
-                            {
-                                if( strchr( psz_value, '%' ) )
-                                {
-                                    p_style->i_margin_h = 0;
-                                    p_style->i_margin_percent_h = atoi( psz_value );
-                                }
-                                else
-                                {
-                                    p_style->i_margin_h = atoi( psz_value );
-                                    p_style->i_margin_percent_h = 0;
-                                }
-                            }
-                            else if( !strcasecmp( "vertical-margin", psz_name ) )
-                            {
-                                if( strchr( psz_value, '%' ) )
-                                {
-                                    p_style->i_margin_v = 0;
-                                    p_style->i_margin_percent_v = atoi( psz_value );
-                                }
-                                else
-                                {
-                                    p_style->i_margin_v = atoi( psz_value );
-                                    p_style->i_margin_percent_v = 0;
-                                }
-                            }
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-
-                free( psz_node );
-                break;
-        }
-    }
-    if( p_style ) free( p_style );
-}
 /*****************************************************************************
  * ParseSSAHeader: Retrieve global formatting information etc
  *****************************************************************************/
-static void ParseSSAHeader( decoder_t *p_dec )
+void ParseSSAHeader( decoder_t *p_dec )
 {
     decoder_sys_t *p_sys = p_dec->p_sys;
     char *psz_parser = NULL;
@@ -1551,8 +215,9 @@ static void ParseSSAHeader( decoder_t *p_dec )
             i_section_type = 4;
         else if( !strncasecmp( psz_parser, "Style:", 6 ) )
         {
-            int i_font_size, i_bold, i_italic, i_border, i_outline, i_shadow, i_underline,
-                i_strikeout, i_scale_x, i_scale_y, i_spacing, i_align, i_margin_l, i_margin_r, i_margin_v;
+            int i_font_size, i_bold, i_italic, i_border, i_outline, i_shadow,
+                i_underline, i_strikeout, i_scale_x, i_scale_y, i_spacing,
+                i_align, i_margin_l, i_margin_r, i_margin_v;
 
             char psz_temp_stylename[MAX_LINE+1];
             char psz_temp_fontname[MAX_LINE+1];
@@ -1565,8 +230,10 @@ static void ParseSSAHeader( decoder_t *p_dec )
             {
                 if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
                     psz_temp_stylename, psz_temp_fontname, &i_font_size,
-                    psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
-                    &i_border, &i_outline, &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 16 )
+                    psz_temp_color1, psz_temp_color2, psz_temp_color3,
+                    psz_temp_color4, &i_bold, &i_italic,
+                    &i_border, &i_outline, &i_shadow, &i_align, &i_margin_l, 
+                    &i_margin_r, &i_margin_v ) == 16 )
                 {
                     ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
 
@@ -1577,12 +244,14 @@ static void ParseSSAHeader( decoder_t *p_dec )
                     ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, NULL );
                     ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, NULL );
                     p_style->font_style.i_outline_color = p_style->font_style.i_shadow_color;
-                    p_style->font_style.i_font_alpha = p_style->font_style.i_outline_alpha = p_style->font_style.i_shadow_alpha = 0x00;
+                    p_style->font_style.i_font_alpha = p_style->font_style.i_outline_alpha 
+                                                     = p_style->font_style.i_shadow_alpha = 0x00;
                     p_style->font_style.i_style_flags = 0;
                     if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
                     if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
 
-                    if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
+                    if( i_border == 1 ) 
+                        p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
                     else if( i_border == 3 )
                     {
                         p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
@@ -1593,12 +262,17 @@ static void ParseSSAHeader( decoder_t *p_dec )
                     p_style->font_style.i_outline_width = i_outline;
 
                     p_style->i_align = 0;
-                    if( i_align == 1 || i_align == 5 || i_align == 9 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
-                    if( i_align == 3 || i_align == 7 || i_align == 11 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
-                    if( i_align < 4 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
-                    else if( i_align < 8 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
-
-                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
+                    if( i_align == 1 || i_align == 5 || i_align == 9 )
+                        p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
+                    if( i_align == 3 || i_align == 7 || i_align == 11 )
+                        p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
+                    if( i_align < 4 )
+                        p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
+                    else if( i_align < 8 ) 
+                        p_style->i_align |= SUBPICTURE_ALIGN_TOP;
+
+                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ?
+                                                        i_margin_r : i_margin_l;
                     p_style->i_margin_v = i_margin_v;
                     p_style->i_margin_percent_h = 0;
                     p_style->i_margin_percent_v = 0;
@@ -1628,9 +302,12 @@ static void ParseSSAHeader( decoder_t *p_dec )
                     p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
                     p_style->font_style.i_font_size = i_font_size;
                     msg_Dbg( p_dec, psz_temp_color1 );
-                    ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, &p_style->font_style.i_font_alpha );
-                    ParseColor( p_dec, psz_temp_color3, &p_style->font_style.i_outline_color, &p_style->font_style.i_outline_alpha );
-                    ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, &p_style->font_style.i_shadow_alpha );
+                    ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color,
+                                &p_style->font_style.i_font_alpha );
+                    ParseColor( p_dec, psz_temp_color3, &p_style->font_style.i_outline_color,
+                                &p_style->font_style.i_outline_alpha );
+                    ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color,
+                                &p_style->font_style.i_shadow_alpha );
 
                     p_style->font_style.i_style_flags = 0;
                     if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
@@ -1650,11 +327,16 @@ static void ParseSSAHeader( decoder_t *p_dec )
                     //p_style->font_style.f_angle = f_angle;
 
                     p_style->i_align = 0;
-                    if( i_align == 0x1 || i_align == 0x4 || i_align == 0x7 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
-                    if( i_align == 0x3 || i_align == 0x6 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
-                    if( i_align == 0x7 || i_align == 0x8 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
-                    if( i_align == 0x1 || i_align == 0x2 || i_align == 0x3 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
-                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
+                    if( i_align == 0x1 || i_align == 0x4 || i_align == 0x7 )
+                        p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
+                    if( i_align == 0x3 || i_align == 0x6 || i_align == 0x9 )
+                        p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
+                    if( i_align == 0x7 || i_align == 0x8 || i_align == 0x9 )
+                        p_style->i_align |= SUBPICTURE_ALIGN_TOP;
+                    if( i_align == 0x1 || i_align == 0x2 || i_align == 0x3 )
+                        p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
+                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ?
+                                            i_margin_r : i_margin_l;
                     p_style->i_margin_v = i_margin_v;
                     p_style->i_margin_percent_h = 0;
                     p_style->i_margin_percent_v = 0;
@@ -1676,440 +358,4 @@ eof:
     return;
 }
 
-/* Function now handles tags which has attribute values, and tries
- * to deal with &' commands too. It no longer modifies the string
- * in place, so that the original text can be reused
- */
-static char *StripTags( char *psz_subtitle )
-{
-    char *psz_text_start;
-    char *psz_text;
-
-    psz_text = psz_text_start = malloc( strlen( psz_subtitle ) + 1 );
-    if( !psz_text_start )
-        return NULL;
-
-    while( *psz_subtitle )
-    {
-        if( *psz_subtitle == '<' )
-        {
-            if( strncasecmp( psz_subtitle, "<br/>", 5 ) == 0 )
-                *psz_text++ = '\n';
-
-            psz_subtitle += strcspn( psz_subtitle, ">" );
-        }
-        else if( *psz_subtitle == '&' )
-        {
-            if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
-            {
-                *psz_text++ = '<';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
-            {
-                *psz_text++ = '>';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
-            {
-                *psz_text++ = '&';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else if( !strncasecmp( psz_subtitle, "&quot;", 6 ))
-            {
-                *psz_text++ = '\"';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else
-            {
-                /* Assume it is just a normal ampersand */
-                *psz_text++ = '&';
-            }
-        }
-        else
-        {
-            *psz_text++ = *psz_subtitle;
-        }
-
-        psz_subtitle++;
-    }
-    *psz_text = '\0';
-    psz_text_start = realloc( psz_text_start, strlen( psz_text_start ) + 1 );
-
-    return psz_text_start;
-}
-
-/* Try to respect any style tags present in the subtitle string. The main
- * problem here is a lack of adequate specs for the subtitle formats.
- * SSA/ASS and USF are both detail spec'ed -- but they are handled elsewhere.
- * SAMI has a detailed spec, but extensive rework is needed in the demux
- * code to prevent all this style information being excised, as it presently
- * does.
- * That leaves the others - none of which were (I guess) originally intended
- * to be carrying style information. Over time people have used them that way.
- * In the absence of specifications from which to work, the tags supported
- * have been restricted to the simple set permitted by the USF DTD, ie. :
- *  Basic: <br>, <i>, <b>, <u>
- *  Extended: <font>
- *    Attributes: face
- *                family
- *                size
- *                color
- *                outline-color
- *                shadow-color
- *                outline-level
- *                shadow-level
- *                back-color
- *                alpha
- * There is also the further restriction that the subtitle be well-formed
- * as an XML entity, ie. the HTML sentence:
- *        <b><i>Bold and Italics</b></i>
- * doesn't qualify because the tags aren't nested one inside the other.
- * <text> tags are automatically added to the output to ensure
- * well-formedness.
- * If the text doesn't qualify for any reason, a NULL string is
- * returned, and the rendering engine will fall back to the
- * plain text version of the subtitle.
- */
-static char *CreateHtmlSubtitle( char *psz_subtitle )
-{
-    char    psz_tagStack[ 100 ];
-    size_t  i_buf_size     = strlen( psz_subtitle ) + 100;
-    char   *psz_html_start = malloc( i_buf_size );
-
-    psz_tagStack[ 0 ] = '\0';
-
-    if( psz_html_start != NULL )
-    {
-        char *psz_html = psz_html_start;
-
-        strcpy( psz_html, "<text>" );
-        psz_html += 6;
-
-        while( *psz_subtitle )
-        {
-            if( *psz_subtitle == '\n' )
-            {
-                strcpy( psz_html, "<br/>" );
-                psz_html += 5;
-                psz_subtitle++;
-            }
-            else if( *psz_subtitle == '<' )
-            {
-                if( !strncasecmp( psz_subtitle, "<br/>", 5 ))
-                {
-                    strcpy( psz_html, "<br/>" );
-                    psz_html += 5;
-                    psz_subtitle += 5;
-                }
-                else if( !strncasecmp( psz_subtitle, "<b>", 3 ) )
-                {
-                    strcpy( psz_html, "<b>" );
-                    strcat( psz_tagStack, "b" );
-                    psz_html += 3;
-                    psz_subtitle += 3;
-                }
-                else if( !strncasecmp( psz_subtitle, "<i>", 3 ) )
-                {
-                    strcpy( psz_html, "<i>" );
-                    strcat( psz_tagStack, "i" );
-                    psz_html += 3;
-                    psz_subtitle += 3;
-                }
-                else if( !strncasecmp( psz_subtitle, "<u>", 3 ) )
-                {
-                    strcpy( psz_html, "<u>" );
-                    strcat( psz_tagStack, "u" );
-                    psz_html += 3;
-                    psz_subtitle += 3;
-                }
-                else if( !strncasecmp( psz_subtitle, "<font ", 6 ))
-                {
-                    const char *psz_attribs[] = { "face=\"", "family=\"", "size=\"",
-                            "color=\"", "outline-color=\"", "shadow-color=\"",
-                            "outline-level=\"", "shadow-level=\"", "back-color=\"",
-                            "alpha=\"", NULL };
-
-                    strcpy( psz_html, "<font " );
-                    strcat( psz_tagStack, "f" );
-                    psz_html += 6;
-                    psz_subtitle += 6;
-
-                    while( *psz_subtitle != '>' )
-                    {
-                        int  k;
-
-                        for( k=0; psz_attribs[ k ]; k++ )
-                        {
-                            int i_len = strlen( psz_attribs[ k ] );
-
-                            if( !strncasecmp( psz_subtitle, psz_attribs[ k ], i_len ))
-                            {
-                                i_len += strcspn( psz_subtitle + i_len, "\"" ) + 1;
-
-                                strncpy( psz_html, psz_subtitle, i_len );
-                                psz_html += i_len;
-                                psz_subtitle += i_len;
-                                break;
-                            }
-                        }
-                        if( psz_attribs[ k ] == NULL )
-                        {
-                            /* Jump over unrecognised tag */
-                            int i_len = strcspn( psz_subtitle, "\"" ) + 1;
-
-                            i_len += strcspn( psz_subtitle + i_len, "\"" ) + 1;
-                            psz_subtitle += i_len;
-                        }
-                        while (*psz_subtitle == ' ')
-                            *psz_html++ = *psz_subtitle++;
-                    }
-                    *psz_html++ = *psz_subtitle++;
-                }
-                else if( !strncmp( psz_subtitle, "</", 2 ))
-                {
-                    vlc_bool_t  b_match     = VLC_FALSE;
-                    int         i_len       = strlen( psz_tagStack ) - 1;
-                    char       *psz_lastTag = NULL;
-
-                    if( i_len >= 0 )
-                    {
-                        psz_lastTag = psz_tagStack + i_len;
-                        i_len = 0;
-
-                        switch( *psz_lastTag )
-                        {
-                            case 'b':
-                                b_match = !strncasecmp( psz_subtitle, "</b>", 4 );
-                                i_len   = 4;
-                                break;
-                            case 'i':
-                                b_match = !strncasecmp( psz_subtitle, "</i>", 4 );
-                                i_len   = 4;
-                                break;
-                            case 'u':
-                                b_match = !strncasecmp( psz_subtitle, "</u>", 4 );
-                                i_len   = 4;
-                                break;
-                            case 'f':
-                                b_match = !strncasecmp( psz_subtitle, "</font>", 7 );
-                                i_len   = 7;
-                                break;
-                        }
-                    }
-                    if( ! b_match )
-                    {
-                        /* Not well formed -- kill everything */
-                        free( psz_html_start );
-                        psz_html_start = NULL;
-                        break;
-                    }
-                    *psz_lastTag = '\0';
-                    strncpy( psz_html, psz_subtitle, i_len );
-                    psz_html += i_len;
-                    psz_subtitle += i_len;
-                }
-                else
-                {
-                    psz_subtitle += strcspn( psz_subtitle, ">" );
-                }
-            }
-            else if( *psz_subtitle == '&' )
-            {
-                if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
-                {
-                    strcpy( psz_html, "&lt;" );
-                    psz_html += 4;
-                    psz_subtitle += 4;
-                }
-                else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
-                {
-                    strcpy( psz_html, "&gt;" );
-                    psz_html += 4;
-                    psz_subtitle += 4;
-                }
-                else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
-                {
-                    strcpy( psz_html, "&amp;" );
-                    psz_html += 5;
-                    psz_subtitle += 5;
-                }
-                else
-                {
-                    strcpy( psz_html, "&amp;" );
-                    psz_html += 5;
-                    psz_subtitle++;
-                }
-            }
-            else
-            {
-                *psz_html = *psz_subtitle;
-                if( psz_html > psz_html_start )
-                {
-                    /* Check for double whitespace */
-                    if((( *psz_html == ' ' ) ||
-                        ( *psz_html == '\t' )) &&
-                       (( *(psz_html-1) == ' ' ) ||
-                        ( *(psz_html-1) == '\t' )))
-                    {
-                        strcpy( psz_html, NO_BREAKING_SPACE );
-                        psz_html += strlen( NO_BREAKING_SPACE ) - 1;
-                    }
-                }
-                psz_html++;
-                psz_subtitle++;
-            }
-
-            if( ( size_t )( psz_html - psz_html_start ) > i_buf_size - 10 )
-            {
-                int i_len = psz_html - psz_html_start;
-
-                i_buf_size += 100;
-                psz_html_start = realloc( psz_html_start, i_buf_size );
-                psz_html = psz_html_start + i_len;
-                *psz_html = '\0';
-            }
-        }
-        strcpy( psz_html, "</text>" );
-        psz_html += 7;
-
-        if( psz_tagStack[ 0 ] != '\0' )
-        {
-            /* Not well formed -- kill everything */
-            free( psz_html_start );
-            psz_html_start = NULL;
-        }
-        else if( psz_html_start )
-        {
-            /* Shrink the memory requirements */
-            psz_html_start = realloc( psz_html_start,  psz_html - psz_html_start + 1 );
-        }
-    }
-    return psz_html_start;
-}
-
-/* The reverse of the above function - given a HTML subtitle, turn it
- * into a plain-text version, complete with sensible whitespace compaction
- */
-
-static char *CreatePlainText( char *psz_subtitle )
-{
-    char *psz_text = StripTags( psz_subtitle );
-    char *s;
-
-    if( !psz_text )
-        return NULL;
-
-    s = strpbrk( psz_text, "\t\r\n " );
-    while( s )
-    {
-        int   k;
-        char  spc = ' ';
-        int   i_whitespace = strspn( s, "\t\r\n " );
-
-        /* Favour '\n' over other whitespaces - if one of these
-         * occurs in the whitespace use a '\n' as our value,
-         * otherwise just use a ' '
-         */
-        for( k = 0; k < i_whitespace; k++ )
-            if( s[k] == '\n' ) spc = '\n';
-
-        if( i_whitespace > 1 )
-        {
-            memmove( &s[1],
-                     &s[i_whitespace],
-                     strlen( s ) - i_whitespace + 1 );
-        }
-        *s++ = spc;
-
-        s = strpbrk( s, "\t\r\n " );
-    }
-    return psz_text;
-}
-
-/****************************************************************************
- * download and resize image located at psz_url
- ***************************************************************************/
-static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color )
-{
-    decoder_sys_t         *p_sys = p_dec->p_sys;
-    subpicture_region_t   *p_region;
-    video_format_t         fmt_out;
-    int                    k;
-    picture_t             *p_pic = NULL;
-
-    for( k = 0; k < p_sys->i_images; k++ )
-    {
-        if( p_sys->pp_images &&
-            !strcmp( p_sys->pp_images[k]->psz_filename, psz_filename ) )
-        {
-            p_pic = p_sys->pp_images[k]->p_pic;
-            break;
-        }
-    }
-
-    if( !p_pic )
-    {
-        msg_Err( p_dec, "Unable to read image %s", psz_filename );
-        return NULL;
-    }
-
-    /* Display the feed's image */
-    memset( &fmt_out, 0, sizeof( video_format_t));
 
-    fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
-    fmt_out.i_aspect = VOUT_ASPECT_FACTOR;
-    fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
-    fmt_out.i_width =
-        fmt_out.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
-    fmt_out.i_height =
-        fmt_out.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
-
-    p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt_out );
-    if( !p_region )
-    {
-        msg_Err( p_dec, "cannot allocate SPU region" );
-        return NULL;
-    }
-    vout_CopyPicture( p_dec, &p_region->picture, p_pic );
-
-    /* This isn't the best way to do this - if you really want transparency, then
-     * you're much better off using an image type that supports it like PNG. The
-     * spec requires this support though.
-     */
-    if( i_transparent_color > 0 )
-    {
-        uint8_t i_r = ( i_transparent_color >> 16 ) & 0xff;
-        uint8_t i_g = ( i_transparent_color >>  8 ) & 0xff;
-        uint8_t i_b = ( i_transparent_color       ) & 0xff;
-        uint8_t i_y = ( ( (  66 * i_r + 129 * i_g +  25 * i_b + 128 ) >> 8 ) + 16 );
-        uint8_t i_u =   ( ( -38 * i_r -  74 * i_g + 112 * i_b + 128 ) >> 8 ) + 128 ;
-        uint8_t i_v =   ( ( 112 * i_r -  94 * i_g -  18 * i_b + 128 ) >> 8 ) + 128 ;
-
-        if( ( p_region->picture.Y_PITCH == p_region->picture.U_PITCH ) &&
-            ( p_region->picture.Y_PITCH == p_region->picture.V_PITCH ) &&
-            ( p_region->picture.Y_PITCH == p_region->picture.A_PITCH ) )
-        {
-            int i_lines = p_region->picture.p[ Y_PLANE ].i_lines;
-            if( i_lines > p_region->picture.p[ U_PLANE ].i_lines )
-                i_lines = p_region->picture.p[ U_PLANE ].i_lines;
-            if( i_lines > p_region->picture.p[ V_PLANE ].i_lines )
-                i_lines = p_region->picture.p[ V_PLANE ].i_lines;
-            if( i_lines > p_region->picture.p[ A_PLANE ].i_lines )
-                i_lines = p_region->picture.p[ A_PLANE ].i_lines;
-
-            int   i;
-
-            for( i = 0; i < p_region->picture.A_PITCH * i_lines; i++ )
-            {
-                if(( p_region->picture.Y_PIXELS[ i ] == i_y ) &&
-                   ( p_region->picture.U_PIXELS[ i ] == i_u ) &&
-                   ( p_region->picture.V_PIXELS[ i ] == i_v ) )
-                {
-                    p_region->picture.A_PIXELS[ i ] = 1;
-                }
-            }
-        }
-    }
-    return p_region;
-}
index 7ac9a5f..2e38cbf 100644 (file)
@@ -2,7 +2,7 @@
  * subsdec.c : text subtitles decoder
  *****************************************************************************
  * Copyright (C) 2000-2006 the VideoLAN team
- * $Id$
+ * $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
  *
  * Authors: Gildas Bazin <gbazin@videolan.org>
  *          Samuel Hocevar <sam@zoy.org>
 /*****************************************************************************
  * Preamble
  *****************************************************************************/
-#include <vlc/vlc.h>
-#include <vlc_vout.h>
-#include <vlc_codec.h>
-#include <vlc_input.h>
-
-#include <vlc_osd.h>
-#include <vlc_filter.h>
-#include <vlc_image.h>
-#include <vlc_charset.h>
-#include <vlc_stream.h>
-#include <vlc_xml.h>
-#include <errno.h>
-#include <string.h>
-
-#define NO_BREAKING_SPACE  "&#160;"
-
-enum
-{
-    ATTRIBUTE_ALIGNMENT = (1 << 0),
-    ATTRIBUTE_X         = (1 << 1),
-    ATTRIBUTE_X_PERCENT = (1 << 2),
-    ATTRIBUTE_Y         = (1 << 3),
-    ATTRIBUTE_Y_PERCENT = (1 << 4),
-};
-
-typedef struct
-{
-    char       *psz_filename;
-    picture_t  *p_pic;
-} image_attach_t;
-
-typedef struct
-{
-    char *          psz_stylename; /* The name of the style, no comma's allowed */
-    text_style_t    font_style;
-    int             i_align;
-    int             i_margin_h;
-    int             i_margin_v;
-    int             i_margin_percent_h;
-    int             i_margin_percent_v;
-}  ssa_style_t;
-
-/*****************************************************************************
- * decoder_sys_t : decoder descriptor
- *****************************************************************************/
-struct decoder_sys_t
-{
-    vlc_bool_t          b_ass;                           /* The subs are ASS */
-    int                 i_original_height;
-    int                 i_original_width;
-    int                 i_align;          /* Subtitles alignment on the vout */
-    vlc_iconv_t         iconv_handle;            /* handle to iconv instance */
-    vlc_bool_t          b_autodetect_utf8;
 
-    ssa_style_t         **pp_ssa_styles;
-    int                 i_ssa_styles;
-
-    image_attach_t      **pp_images;
-    int                 i_images;
-};
+#include "subsdec.h"
 
 /*****************************************************************************
  * Local prototypes
@@ -94,22 +36,13 @@ struct decoder_sys_t
 static int  OpenDecoder   ( vlc_object_t * );
 static void CloseDecoder  ( vlc_object_t * );
 
-static subpicture_t *DecodeBlock   ( decoder_t *, block_t ** );
-static subpicture_t *ParseText     ( decoder_t *, block_t * );
-static void         ParseSSAHeader ( decoder_t * );
-static void         ParseUSFHeader ( decoder_t * );
-static void         ParseUSFHeaderTags( decoder_t *, xml_reader_t * );
-static void         ParseSSAString ( decoder_t *, char *, subpicture_t * );
-static subpicture_region_t *ParseUSFString ( decoder_t *, char *, subpicture_t * );
-static void         ParseColor     ( decoder_t *, char *, int *, int * );
-static char        *StripTags      ( char * );
-static char        *CreateHtmlSubtitle ( char * );
-static char        *CreatePlainText( char * );
-static int          ParseImageAttachments( decoder_t *p_dec );
-static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color );
-
-#define DEFAULT_NAME "Default"
-#define MAX_LINE 8192
+static subpicture_t   *DecodeBlock   ( decoder_t *, block_t ** );
+static subpicture_t   *ParseText     ( decoder_t *, block_t * );
+static char           *StripTags      ( char * );
+static char           *CreateHtmlSubtitle ( char * );
+static int            ParseImageAttachments( decoder_t *p_dec );
+
+static int            ParsePositionAttributeList( char *, int *, int *, int * );
 
 /*****************************************************************************
  * Module descriptor.
@@ -536,7 +469,7 @@ static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
     return p_spu;
 }
 
-static char *GrabAttributeValue( const char *psz_attribute,
+char *GrabAttributeValue( const char *psz_attribute,
                                  const char *psz_tag_start )
 {
     if( psz_attribute && psz_tag_start )
@@ -581,7 +514,8 @@ static ssa_style_t *ParseStyle( decoder_sys_t *p_sys, char *psz_subtitle )
     return p_style;
 }
 
-static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_x, int *i_y )
+static int ParsePositionAttributeList( char *psz_subtitle, int *i_align,
+                                       int *i_x, int *i_y )
 {
     int   i_mask = 0;
 
@@ -646,7 +580,7 @@ static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_
     return i_mask;
 }
 
-static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
+void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
 {
     int           i_mask = 0;
     int           i_align;
@@ -672,7 +606,7 @@ static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
         p_region->i_y = 0;
 }
 
-static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
+subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
                                               subpicture_t *p_spu,
                                               char *psz_subtitle,
                                               int i_len,
@@ -749,319 +683,6 @@ static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
     return p_text_region;
 }
 
-static subpicture_region_t *ParseUSFString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
-{
-    decoder_sys_t        *p_sys = p_dec->p_sys;
-    subpicture_t         *p_spu = p_spu_in;
-    subpicture_region_t  *p_region_first = NULL;
-    subpicture_region_t  *p_region_upto  = p_region_first;
-
-    while( *psz_subtitle )
-    {
-        if( *psz_subtitle == '<' )
-        {
-            char *psz_end = NULL;
-
-            if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
-               ( !strncasecmp( psz_subtitle, "<text>", 6 )))
-            {
-                psz_end = strcasestr( psz_subtitle, "</text>" );
-
-                if( psz_end )
-                {
-                    subpicture_region_t  *p_text_region;
-
-                    psz_end += strcspn( psz_end, ">" ) + 1;
-
-                    p_text_region = CreateTextRegion( p_dec,
-                                                      p_spu,
-                                                      psz_subtitle,
-                                                      psz_end - psz_subtitle,
-                                                      p_sys->i_align );
-
-                    if( p_text_region )
-                    {
-                        p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
-
-                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-                        {
-                            free( p_text_region->psz_html );
-                            p_text_region->psz_html = NULL;
-                        }
-                    }
-
-                    if( !p_region_first )
-                    {
-                        p_region_first = p_region_upto = p_text_region;
-                    }
-                    else if( p_text_region )
-                    {
-                        p_region_upto->p_next = p_text_region;
-                        p_region_upto = p_region_upto->p_next;
-                    }
-                }
-            }
-            else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
-                    ( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
-            {
-                psz_end = strcasestr( psz_subtitle, "</karaoke>" );
-
-                if( psz_end )
-                {
-                    subpicture_region_t  *p_text_region;
-
-                    psz_end += strcspn( psz_end, ">" ) + 1;
-
-                    p_text_region = CreateTextRegion( p_dec,
-                                                      p_spu,
-                                                      psz_subtitle,
-                                                      psz_end - psz_subtitle,
-                                                      p_sys->i_align );
-
-                    if( p_text_region )
-                    {
-                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-                        {
-                            free( p_text_region->psz_html );
-                            p_text_region->psz_html = NULL;
-                        }
-                    }
-                    if( !p_region_first )
-                    {
-                        p_region_first = p_region_upto = p_text_region;
-                    }
-                    else if( p_text_region )
-                    {
-                        p_region_upto->p_next = p_text_region;
-                        p_region_upto = p_region_upto->p_next;
-                    }
-                }
-            }
-            else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
-                    ( !strncasecmp( psz_subtitle, "<image>", 7 )))
-            {
-                subpicture_region_t *p_image_region = NULL;
-
-                char *psz_end = strcasestr( psz_subtitle, "</image>" );
-                char *psz_content = strchr( psz_subtitle, '>' );
-                int   i_transparent = -1;
-
-                /* If a colorkey parameter is specified, then we have to map
-                 * that index in the picture through as transparent (it is
-                 * required by the USF spec but is also recommended that if the
-                 * creator really wants a transparent colour that they use a
-                 * type like PNG that properly supports it; this goes doubly
-                 * for VLC because the pictures are stored internally in YUV
-                 * and the resulting colour-matching may not produce the
-                 * desired results.)
-                 */
-                char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
-                if( psz_tmp )
-                {
-                    if( *psz_tmp == '#' )
-                        i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
-                    free( psz_tmp );
-                }
-                if( psz_content && ( psz_content < psz_end ) )
-                {
-                    char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
-                    if( psz_filename )
-                    {
-                        p_image_region = LoadEmbeddedImage( p_dec, p_spu, psz_filename, i_transparent );
-                        free( psz_filename );
-                    }
-                }
-
-                if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
-
-                if( p_image_region )
-                {
-                    SetupPositions( p_image_region, psz_subtitle );
-
-                    p_image_region->p_next   = NULL;
-                    p_image_region->psz_text = NULL;
-                    p_image_region->psz_html = NULL;
-
-                }
-                if( !p_region_first )
-                {
-                    p_region_first = p_region_upto = p_image_region;
-                }
-                else if( p_image_region )
-                {
-                    p_region_upto->p_next = p_image_region;
-                    p_region_upto = p_region_upto->p_next;
-                }
-            }
-            if( psz_end )
-                psz_subtitle = psz_end - 1;
-
-            psz_subtitle += strcspn( psz_subtitle, ">" );
-        }
-
-        psz_subtitle++;
-    }
-
-    return p_region_first;
-}
-
-static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
-{
-    /* We expect MKV formatted SSA:
-     * ReadOrder, Layer, Style, CharacterName, MarginL, MarginR,
-     * MarginV, Effect, Text */
-    decoder_sys_t   *p_sys = p_dec->p_sys;
-    subpicture_t    *p_spu = p_spu_in;
-    ssa_style_t     *p_style = NULL;
-    char            *psz_new_subtitle = NULL;
-    char            *psz_buffer_sub = NULL;
-    char            *psz_style = NULL;
-    char            *psz_style_start = NULL;
-    char            *psz_style_end = NULL;
-    int             i_text = 0, i_comma = 0, i_strlen = 0, i;
-    int             i_margin_l = 0, i_margin_r = 0, i_margin_v = 0;
-
-    psz_buffer_sub = psz_subtitle;
-
-    p_spu->p_region->psz_html = NULL;
-
-    i_comma = 0;
-    while( i_comma < 8 && *psz_buffer_sub != '\0' )
-    {
-        if( *psz_buffer_sub == ',' )
-        {
-            i_comma++;
-            if( i_comma == 2 )
-                psz_style_start = &psz_buffer_sub[1];
-            else if( i_comma == 3 )
-                psz_style_end = &psz_buffer_sub[0];
-            else if( i_comma == 4 )
-                i_margin_l = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
-            else if( i_comma == 5 )
-                i_margin_r = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
-            else if( i_comma == 6 )
-                i_margin_v = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
-        }
-        psz_buffer_sub++;
-    }
-
-    if( *psz_buffer_sub == '\0' && i_comma == 8 )
-    {
-        msg_Dbg( p_dec, "couldn't find all fields in this SSA line" );
-        return;
-    }
-
-    psz_new_subtitle = malloc( strlen( psz_buffer_sub ) + 1);
-    i_text = 0;
-    while( psz_buffer_sub[0] != '\0' )
-    {
-        if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'n' )
-        {
-            psz_new_subtitle[i_text] = ' ';
-            i_text++;
-            psz_buffer_sub += 2;
-        }
-        else if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'N' )
-        {
-            psz_new_subtitle[i_text] = '\n';
-            i_text++;
-            psz_buffer_sub += 2;
-        }
-        else if( psz_buffer_sub[0] == '{' &&
-                 psz_buffer_sub[1] == '\\' )
-        {
-            /* SSA control code */
-            while( psz_buffer_sub[0] != '\0' &&
-                   psz_buffer_sub[0] != '}' )
-            {
-                psz_buffer_sub++;
-            }
-            psz_buffer_sub++;
-        }
-        else
-        {
-            psz_new_subtitle[i_text] = psz_buffer_sub[0];
-            i_text++;
-            psz_buffer_sub++;
-        }
-    }
-    psz_new_subtitle[i_text] = '\0';
-
-    i_strlen = __MAX( psz_style_end - psz_style_start, 0);
-    psz_style = strndup( psz_style_start, i_strlen );
-
-    for( i = 0; i < p_sys->i_ssa_styles; i++ )
-    {
-        if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
-            p_style = p_sys->pp_ssa_styles[i];
-    }
-    if( psz_style ) free( psz_style );
-
-    p_spu->p_region->psz_text = psz_new_subtitle;
-    if( p_style == NULL )
-    {
-        p_spu->p_region->i_align = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
-        p_spu->i_x = p_sys->i_align ? 20 : 0;
-        p_spu->i_y = 10;
-    }
-    else
-    {
-        msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename);
-        p_spu->p_region->p_style = &p_style->font_style;
-        p_spu->p_region->i_align = p_style->i_align;
-        if( p_style->i_align & SUBPICTURE_ALIGN_LEFT )
-        {
-            p_spu->i_x = (i_margin_l) ? i_margin_l : p_style->i_margin_h;
-        }
-        else if( p_style->i_align & SUBPICTURE_ALIGN_RIGHT )
-        {
-            p_spu->i_x = (i_margin_r) ? i_margin_r : p_style->i_margin_h;
-        }
-        p_spu->i_y = (i_margin_v) ? i_margin_v : p_style->i_margin_v;
-    }
-}
-
-static char* GotoNextLine( char *psz_text )
-{
-    char *p_newline = psz_text;
-
-    while( p_newline[0] != '\0' )
-    {
-        if( p_newline[0] == '\n' || p_newline[0] == '\r' )
-        {
-            p_newline++;
-            while( p_newline[0] == '\n' || p_newline[0] == '\r' )
-                p_newline++;
-            break;
-        }
-        else p_newline++;
-    }
-    return p_newline;
-}
-
-/*****************************************************************************
- * ParseColor: SSA stores color in BBGGRR, in ASS it uses AABBGGRR
- * The string value in the string can be a pure integer, or hexadecimal &HBBGGRR
- *****************************************************************************/
-static void ParseColor( decoder_t *p_dec, char *psz_color, int *pi_color, int *pi_alpha )
-{
-    int i_color = 0;
-    if( !strncasecmp( psz_color, "&H", 2 ) )
-    {
-        /* textual HEX representation */
-        i_color = (int) strtol( psz_color+2, NULL, 16 );
-    }
-    else i_color = (int) strtol( psz_color, NULL, 0 );
-
-    *pi_color = 0;
-    *pi_color |= ( ( i_color & 0x000000FF ) << 16 ); /* Red */
-    *pi_color |= ( ( i_color & 0x0000FF00 ) );       /* Green */
-    *pi_color |= ( ( i_color & 0x00FF0000 ) >> 16 ); /* Blue */
-
-    if( pi_alpha != NULL )
-        *pi_alpha = ( i_color & 0xFF000000 ) >> 24;
-}
-
 static int ParseImageAttachments( decoder_t *p_dec )
 {
     decoder_sys_t        *p_sys = p_dec->p_sys;
@@ -1135,7 +756,7 @@ static int ParseImageAttachments( decoder_t *p_dec )
                     fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
 
                     /* Find a suitable decoder module */
-                    if( module_Exists( p_dec, "SDL Image decoder" ) )
+                    if( module_Exists( p_dec, "sdl_image" ) )
                     {
                         /* ffmpeg thinks it can handle bmp properly but it can't (at least
                          * not all of them), so use sdl_image if it is available */
@@ -1173,507 +794,22 @@ static int ParseImageAttachments( decoder_t *p_dec )
     return VLC_SUCCESS;
 }
 
-/*****************************************************************************
- * ParseUSFHeader: Retrieve global formatting information etc
- *****************************************************************************/
-static void ParseUSFHeader( decoder_t *p_dec )
-{
-    stream_t      *p_sub = NULL;
-    xml_t         *p_xml = NULL;
-    xml_reader_t  *p_xml_reader = NULL;
-
-    p_sub = stream_MemoryNew( VLC_OBJECT(p_dec),
-                              p_dec->fmt_in.p_extra,
-                              p_dec->fmt_in.i_extra,
-                              VLC_TRUE );
-    if( !p_sub )
-        return;
-
-    p_xml = xml_Create( p_dec );
-    if( p_xml )
-    {
-        p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
-        if( p_xml_reader )
-        {
-            /* Look for Root Node */
-            if( xml_ReaderRead( p_xml_reader ) == 1 )
-            {
-                char *psz_node = xml_ReaderName( p_xml_reader );
-
-                if( !strcasecmp( "usfsubtitles", psz_node ) )
-                    ParseUSFHeaderTags( p_dec, p_xml_reader );
-
-                free( psz_node );
-            }
-
-            xml_ReaderDelete( p_xml, p_xml_reader );
-        }
-        xml_Delete( p_xml );
-    }
-    stream_Delete( p_sub );
-}
-
-static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
+char* GotoNextLine( char *psz_text )
 {
-    decoder_sys_t *p_sys = p_dec->p_sys;
-    char *psz_node;
-    ssa_style_t *p_style = NULL;
-    int i_style_level = 0;
-    int i_metadata_level = 0;
-
-    while ( xml_ReaderRead( p_xml_reader ) == 1 )
-    {
-        switch ( xml_ReaderNodeType( p_xml_reader ) )
-        {
-            case XML_READER_TEXT:
-            case XML_READER_NONE:
-                break;
-            case XML_READER_ENDELEM:
-                psz_node = xml_ReaderName( p_xml_reader );
-
-                if( !psz_node )
-                    break;
-                switch (i_style_level)
-                {
-                    case 0:
-                        if( !strcasecmp( "metadata", psz_node ) && (i_metadata_level == 1) )
-                        {
-                            i_metadata_level--;
-                        }
-                        break;
-                    case 1:
-                        if( !strcasecmp( "styles", psz_node ) )
-                        {
-                            i_style_level--;
-                        }
-                        break;
-                    case 2:
-                        if( !strcasecmp( "style", psz_node ) )
-                        {
-                            TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
-
-                            p_style = NULL;
-                            i_style_level--;
-                        }
-                        break;
-                }
-
-                free( psz_node );
-                break;
-            case XML_READER_STARTELEM:
-                psz_node = xml_ReaderName( p_xml_reader );
-
-                if( !psz_node )
-                    break;
-
-                if( !strcasecmp( "metadata", psz_node ) && (i_style_level == 0) )
-                {
-                    i_metadata_level++;
-                }
-                else if( !strcasecmp( "resolution", psz_node ) && (i_metadata_level == 1) )
-                {
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "x", psz_name ) )
-                                p_sys->i_original_width = atoi( psz_value );
-                            else if( !strcasecmp( "y", psz_name ) )
-                                p_sys->i_original_height = atoi( psz_value );
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-                else if( !strcasecmp( "styles", psz_node ) && (i_style_level == 0) )
-                {
-                    i_style_level++;
-                }
-                else if( !strcasecmp( "style", psz_node ) && (i_style_level == 1) )
-                {
-                    i_style_level++;
-
-                    p_style = calloc( 1, sizeof(ssa_style_t) );
-                    if( ! p_style )
-                    {
-                        msg_Err( p_dec, "out of memory" );
-                        free( psz_node );
-                        break;
-                    }
-                    /* All styles are supposed to default to Default, and then
-                     * one or more settings are over-ridden.
-                     * At the moment this only effects styles defined AFTER
-                     * Default in the XML
-                     */
-                    int i;
-                    for( i = 0; i < p_sys->i_ssa_styles; i++ )
-                    {
-                        if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
-                        {
-                            ssa_style_t *p_default_style = p_sys->pp_ssa_styles[i];
-
-                            memcpy( p_style, p_default_style, sizeof( ssa_style_t ) );
-                            p_style->font_style.psz_fontname = strdup( p_style->font_style.psz_fontname );
-                            p_style->psz_stylename = NULL;
-                        }
-                    }
-
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "name", psz_name ) )
-                                p_style->psz_stylename = strdup( psz_value);
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-                else if( !strcasecmp( "fontstyle", psz_node ) && (i_style_level == 2) )
-                {
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "face", psz_name ) )
-                            {
-                                if( p_style->font_style.psz_fontname ) free( p_style->font_style.psz_fontname );
-                                p_style->font_style.psz_fontname = strdup( psz_value );
-                            }
-                            else if( !strcasecmp( "size", psz_name ) )
-                            {
-                                if( ( *psz_value == '+' ) || ( *psz_value == '-' ) )
-                                {
-                                    int i_value = atoi( psz_value );
-
-                                    if( ( i_value >= -5 ) && ( i_value <= 5 ) )
-                                        p_style->font_style.i_font_size  += ( i_value * p_style->font_style.i_font_size ) / 10;
-                                    else if( i_value < -5 )
-                                        p_style->font_style.i_font_size  = - i_value;
-                                    else if( i_value > 5 )
-                                        p_style->font_style.i_font_size  = i_value;
-                                }
-                                else
-                                    p_style->font_style.i_font_size  = atoi( psz_value );
-                            }
-                            else if( !strcasecmp( "italic", psz_name ) )
-                            {
-                                if( !strcasecmp( "yes", psz_value ))
-                                    p_style->font_style.i_style_flags |= STYLE_ITALIC;
-                                else
-                                    p_style->font_style.i_style_flags &= ~STYLE_ITALIC;
-                            }
-                            else if( !strcasecmp( "weight", psz_name ) )
-                            {
-                                if( !strcasecmp( "bold", psz_value ))
-                                    p_style->font_style.i_style_flags |= STYLE_BOLD;
-                                else
-                                    p_style->font_style.i_style_flags &= ~STYLE_BOLD;
-                            }
-                            else if( !strcasecmp( "underline", psz_name ) )
-                            {
-                                if( !strcasecmp( "yes", psz_value ))
-                                    p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
-                                else
-                                    p_style->font_style.i_style_flags &= ~STYLE_UNDERLINE;
-                            }
-                            else if( !strcasecmp( "color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_font_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_font_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "outline-color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_outline_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_outline_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "outline-level", psz_name ) )
-                            {
-                                p_style->font_style.i_outline_width = atoi( psz_value );
-                            }
-                            else if( !strcasecmp( "shadow-color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_shadow_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_shadow_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "shadow-level", psz_name ) )
-                            {
-                                p_style->font_style.i_shadow_width = atoi( psz_value );
-                            }
-                            else if( !strcasecmp( "back-color", psz_name ) )
-                            {
-                                if( *psz_value == '#' )
-                                {
-                                    unsigned long col = strtol(psz_value+1, NULL, 16);
-                                    p_style->font_style.i_karaoke_background_color = (col & 0x00ffffff);
-                                    p_style->font_style.i_karaoke_background_alpha = (col >> 24) & 0xff;
-                                }
-                            }
-                            else if( !strcasecmp( "spacing", psz_name ) )
-                            {
-                                p_style->font_style.i_spacing = atoi( psz_value );
-                            }
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-                else if( !strcasecmp( "position", psz_node ) && (i_style_level == 2) )
-                {
-                    while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
-                    {
-                        char *psz_name = xml_ReaderName ( p_xml_reader );
-                        char *psz_value = xml_ReaderValue ( p_xml_reader );
-
-                        if( psz_name && psz_value )
-                        {
-                            if( !strcasecmp( "alignment", psz_name ) )
-                            {
-                                if( !strcasecmp( "TopLeft", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT;
-                                else if( !strcasecmp( "TopCenter", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_TOP;
-                                else if( !strcasecmp( "TopRight", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT;
-                                else if( !strcasecmp( "MiddleLeft", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_LEFT;
-                                else if( !strcasecmp( "MiddleCenter", psz_value ) )
-                                    p_style->i_align = 0;
-                                else if( !strcasecmp( "MiddleRight", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_RIGHT;
-                                else if( !strcasecmp( "BottomLeft", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT;
-                                else if( !strcasecmp( "BottomCenter", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_BOTTOM;
-                                else if( !strcasecmp( "BottomRight", psz_value ) )
-                                    p_style->i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT;
-                            }
-                            else if( !strcasecmp( "horizontal-margin", psz_name ) )
-                            {
-                                if( strchr( psz_value, '%' ) )
-                                {
-                                    p_style->i_margin_h = 0;
-                                    p_style->i_margin_percent_h = atoi( psz_value );
-                                }
-                                else
-                                {
-                                    p_style->i_margin_h = atoi( psz_value );
-                                    p_style->i_margin_percent_h = 0;
-                                }
-                            }
-                            else if( !strcasecmp( "vertical-margin", psz_name ) )
-                            {
-                                if( strchr( psz_value, '%' ) )
-                                {
-                                    p_style->i_margin_v = 0;
-                                    p_style->i_margin_percent_v = atoi( psz_value );
-                                }
-                                else
-                                {
-                                    p_style->i_margin_v = atoi( psz_value );
-                                    p_style->i_margin_percent_v = 0;
-                                }
-                            }
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-
-                free( psz_node );
-                break;
-        }
-    }
-    if( p_style ) free( p_style );
-}
-/*****************************************************************************
- * ParseSSAHeader: Retrieve global formatting information etc
- *****************************************************************************/
-static void ParseSSAHeader( decoder_t *p_dec )
-{
-    decoder_sys_t *p_sys = p_dec->p_sys;
-    char *psz_parser = NULL;
-    char *psz_header = malloc( p_dec->fmt_in.i_extra+1 );
-    int i_section_type = 1;
-
-    memcpy( psz_header, p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
-    psz_header[ p_dec->fmt_in.i_extra] = '\0';
-
-    /* Handle [Script Info] section */
-    psz_parser = strcasestr( psz_header, "[Script Info]" );
-    if( psz_parser == NULL ) goto eof;
-
-    psz_parser = GotoNextLine( psz_parser );
+    char *p_newline = psz_text;
 
-    while( psz_parser[0] != '\0' )
+    while( p_newline[0] != '\0' )
     {
-        int temp;
-        char buffer_text[MAX_LINE + 1];
-
-        if( psz_parser[0] == '!' || psz_parser[0] == ';' ) /* comment */;
-        else if( sscanf( psz_parser, "PlayResX: %d", &temp ) == 1 )
-            p_sys->i_original_width = ( temp > 0 ) ? temp : -1;
-        else if( sscanf( psz_parser, "PlayResY: %d", &temp ) == 1 )
-            p_sys->i_original_height = ( temp > 0 ) ? temp : -1;
-        else if( sscanf( psz_parser, "Script Type: %8192s", buffer_text ) == 1 )
-        {
-            if( !strcasecmp( buffer_text, "V4.00+" ) ) p_sys->b_ass = VLC_TRUE;
-        }
-        else if( !strncasecmp( psz_parser, "[V4 Styles]", 11 ) )
-            i_section_type = 1;
-        else if( !strncasecmp( psz_parser, "[V4+ Styles]", 12) )
-        {
-            i_section_type = 2;
-            p_sys->b_ass = VLC_TRUE;
-        }
-        else if( !strncasecmp( psz_parser, "[Events]", 8 ) )
-            i_section_type = 4;
-        else if( !strncasecmp( psz_parser, "Style:", 6 ) )
+        if( p_newline[0] == '\n' || p_newline[0] == '\r' )
         {
-            int i_font_size, i_bold, i_italic, i_border, i_outline, i_shadow, i_underline,
-                i_strikeout, i_scale_x, i_scale_y, i_spacing, i_align, i_margin_l, i_margin_r, i_margin_v;
-
-            char psz_temp_stylename[MAX_LINE+1];
-            char psz_temp_fontname[MAX_LINE+1];
-            char psz_temp_color1[MAX_LINE+1];
-            char psz_temp_color2[MAX_LINE+1];
-            char psz_temp_color3[MAX_LINE+1];
-            char psz_temp_color4[MAX_LINE+1];
-
-            if( i_section_type == 1 ) /* V4 */
-            {
-                if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
-                    psz_temp_stylename, psz_temp_fontname, &i_font_size,
-                    psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
-                    &i_border, &i_outline, &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 16 )
-                {
-                    ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
-
-                    p_style->psz_stylename = strdup( psz_temp_stylename );
-                    p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
-                    p_style->font_style.i_font_size = i_font_size;
-
-                    ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, NULL );
-                    ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, NULL );
-                    p_style->font_style.i_outline_color = p_style->font_style.i_shadow_color;
-                    p_style->font_style.i_font_alpha = p_style->font_style.i_outline_alpha = p_style->font_style.i_shadow_alpha = 0x00;
-                    p_style->font_style.i_style_flags = 0;
-                    if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
-                    if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
-
-                    if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
-                    else if( i_border == 3 )
-                    {
-                        p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
-                        p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
-                        p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
-                    }
-                    p_style->font_style.i_shadow_width = i_shadow;
-                    p_style->font_style.i_outline_width = i_outline;
-
-                    p_style->i_align = 0;
-                    if( i_align == 1 || i_align == 5 || i_align == 9 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
-                    if( i_align == 3 || i_align == 7 || i_align == 11 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
-                    if( i_align < 4 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
-                    else if( i_align < 8 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
-
-                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
-                    p_style->i_margin_v = i_margin_v;
-                    p_style->i_margin_percent_h = 0;
-                    p_style->i_margin_percent_v = 0;
-
-                    p_style->font_style.i_karaoke_background_color = 0xffffff;
-                    p_style->font_style.i_karaoke_background_alpha = 0xff;
-
-                    TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
-                }
-                else msg_Warn( p_dec, "SSA v4 styleline parsing failed" );
-            }
-            else if( i_section_type == 2 ) /* V4+ */
-            {
-                /* Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour,
-                   Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline,
-                   Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
-                */
-                if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%*f,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
-                    psz_temp_stylename, psz_temp_fontname, &i_font_size,
-                    psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
-                    &i_underline, &i_strikeout, &i_scale_x, &i_scale_y, &i_spacing, &i_border, &i_outline,
-                    &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 21 )
-                {
-                    ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
-
-                    p_style->psz_stylename = strdup( psz_temp_stylename );
-                    p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
-                    p_style->font_style.i_font_size = i_font_size;
-                    msg_Dbg( p_dec, psz_temp_color1 );
-                    ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, &p_style->font_style.i_font_alpha );
-                    ParseColor( p_dec, psz_temp_color3, &p_style->font_style.i_outline_color, &p_style->font_style.i_outline_alpha );
-                    ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, &p_style->font_style.i_shadow_alpha );
-
-                    p_style->font_style.i_style_flags = 0;
-                    if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
-                    if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
-                    if( i_underline ) p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
-                    if( i_strikeout ) p_style->font_style.i_style_flags |= STYLE_STRIKEOUT;
-                    if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
-                    else if( i_border == 3 )
-                    {
-                        p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
-                        p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
-                        p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
-                    }
-                    p_style->font_style.i_shadow_width  = ( i_border == 1 ) ? i_shadow : 0;
-                    p_style->font_style.i_outline_width = ( i_border == 1 ) ? i_outline : 0;
-                    p_style->font_style.i_spacing = i_spacing;
-                    //p_style->font_style.f_angle = f_angle;
-
-                    p_style->i_align = 0;
-                    if( i_align == 0x1 || i_align == 0x4 || i_align == 0x7 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
-                    if( i_align == 0x3 || i_align == 0x6 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
-                    if( i_align == 0x7 || i_align == 0x8 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
-                    if( i_align == 0x1 || i_align == 0x2 || i_align == 0x3 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
-                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
-                    p_style->i_margin_v = i_margin_v;
-                    p_style->i_margin_percent_h = 0;
-                    p_style->i_margin_percent_v = 0;
-
-                    p_style->font_style.i_karaoke_background_color = 0xffffff;
-                    p_style->font_style.i_karaoke_background_alpha = 0xff;
-
-                    /*TODO: Ignored: angle i_scale_x|y (fontscaling), i_encoding */
-                    TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
-                }
-                else msg_Dbg( p_dec, "SSA V4+ styleline parsing failed" );
-            }
+            p_newline++;
+            while( p_newline[0] == '\n' || p_newline[0] == '\r' )
+                p_newline++;
+            break;
         }
-        psz_parser = GotoNextLine( psz_parser );
+        else p_newline++;
     }
-
-eof:
-    if( psz_header ) free( psz_header );
-    return;
+    return p_newline;
 }
 
 /* Function now handles tags which has attribute values, and tries
@@ -1992,7 +1128,7 @@ static char *CreateHtmlSubtitle( char *psz_subtitle )
  * into a plain-text version, complete with sensible whitespace compaction
  */
 
-static char *CreatePlainText( char *psz_subtitle )
+char *CreatePlainText( char *psz_subtitle )
 {
     char *psz_text = StripTags( psz_subtitle );
     char *s;
@@ -2030,7 +1166,10 @@ static char *CreatePlainText( char *psz_subtitle )
 /****************************************************************************
  * download and resize image located at psz_url
  ***************************************************************************/
-static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color )
+subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec,
+                                        subpicture_t *p_spu,
+                                        const char *psz_filename,
+                                        int i_transparent_color )
 {
     decoder_sys_t         *p_sys = p_dec->p_sys;
     subpicture_region_t   *p_region;
index 7ac9a5f..fb3b429 100644 (file)
@@ -1,8 +1,8 @@
 /*****************************************************************************
- * subsdec.c : text subtitles decoder
+ * subsusf.c : USF subtitles decoder
  *****************************************************************************
  * Copyright (C) 2000-2006 the VideoLAN team
- * $Id$
+ * $Id: subsdec.c 20996 2007-08-05 20:01:21Z jb $
  *
  * Authors: Gildas Bazin <gbazin@videolan.org>
  *          Samuel Hocevar <sam@zoy.org>
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
-/*****************************************************************************
- * Preamble
- *****************************************************************************/
-#include <vlc/vlc.h>
-#include <vlc_vout.h>
-#include <vlc_codec.h>
-#include <vlc_input.h>
-
-#include <vlc_osd.h>
-#include <vlc_filter.h>
-#include <vlc_image.h>
-#include <vlc_charset.h>
-#include <vlc_stream.h>
-#include <vlc_xml.h>
-#include <errno.h>
-#include <string.h>
-
-#define NO_BREAKING_SPACE  "&#160;"
-
-enum
-{
-    ATTRIBUTE_ALIGNMENT = (1 << 0),
-    ATTRIBUTE_X         = (1 << 1),
-    ATTRIBUTE_X_PERCENT = (1 << 2),
-    ATTRIBUTE_Y         = (1 << 3),
-    ATTRIBUTE_Y_PERCENT = (1 << 4),
-};
-
-typedef struct
-{
-    char       *psz_filename;
-    picture_t  *p_pic;
-} image_attach_t;
-
-typedef struct
-{
-    char *          psz_stylename; /* The name of the style, no comma's allowed */
-    text_style_t    font_style;
-    int             i_align;
-    int             i_margin_h;
-    int             i_margin_v;
-    int             i_margin_percent_h;
-    int             i_margin_percent_v;
-}  ssa_style_t;
-
-/*****************************************************************************
- * decoder_sys_t : decoder descriptor
- *****************************************************************************/
-struct decoder_sys_t
-{
-    vlc_bool_t          b_ass;                           /* The subs are ASS */
-    int                 i_original_height;
-    int                 i_original_width;
-    int                 i_align;          /* Subtitles alignment on the vout */
-    vlc_iconv_t         iconv_handle;            /* handle to iconv instance */
-    vlc_bool_t          b_autodetect_utf8;
-
-    ssa_style_t         **pp_ssa_styles;
-    int                 i_ssa_styles;
-
-    image_attach_t      **pp_images;
-    int                 i_images;
-};
-
-/*****************************************************************************
- * Local prototypes
- *****************************************************************************/
-static int  OpenDecoder   ( vlc_object_t * );
-static void CloseDecoder  ( vlc_object_t * );
-
-static subpicture_t *DecodeBlock   ( decoder_t *, block_t ** );
-static subpicture_t *ParseText     ( decoder_t *, block_t * );
-static void         ParseSSAHeader ( decoder_t * );
-static void         ParseUSFHeader ( decoder_t * );
-static void         ParseUSFHeaderTags( decoder_t *, xml_reader_t * );
-static void         ParseSSAString ( decoder_t *, char *, subpicture_t * );
-static subpicture_region_t *ParseUSFString ( decoder_t *, char *, subpicture_t * );
-static void         ParseColor     ( decoder_t *, char *, int *, int * );
-static char        *StripTags      ( char * );
-static char        *CreateHtmlSubtitle ( char * );
-static char        *CreatePlainText( char * );
-static int          ParseImageAttachments( decoder_t *p_dec );
-static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color );
-
-#define DEFAULT_NAME "Default"
-#define MAX_LINE 8192
-
-/*****************************************************************************
- * Module descriptor.
- *****************************************************************************/
-static const char *ppsz_encodings[] = { DEFAULT_NAME, "ASCII", "UTF-8", "",
-    "ISO-8859-1", "CP1252", "MacRoman", "MacIceland","ISO-8859-15", "",
-    "ISO-8859-2", "CP1250", "MacCentralEurope", "MacCroatian", "MacRomania", "",
-    "ISO-8859-5", "CP1251", "MacCyrillic", "MacUkraine", "KOI8-R", "KOI8-U", "KOI8-RU", "",
-    "ISO-8859-6", "CP1256", "MacArabic", "",
-    "ISO-8859-7", "CP1253", "MacGreek", "",
-    "ISO-8859-8", "CP1255", "MacHebrew", "",
-    "ISO-8859-9", "CP1254", "MacTurkish", "",
-    "ISO-8859-13", "CP1257", "",
-    "ISO-2022-JP", "ISO-2022-JP-1", "ISO-2022-JP-2", "EUC-JP", "SHIFT_JIS", "",
-    "ISO-2022-CN", "ISO-2022-CN-EXT", "EUC-CN", "EUC-TW", "BIG5", "BIG5-HKSCS", "",
-    "ISO-2022-KR", "EUC-KR", "",
-    "MacThai", "KOI8-T", "",
-    "ISO-8859-3", "ISO-8859-4", "ISO-8859-10", "ISO-8859-14", "ISO-8859-16", "",
-    "CP850", "CP862", "CP866", "CP874", "CP932", "CP949", "CP950", "CP1133", "CP1258", "",
-    "Macintosh", "",
-    "UTF-7", "UTF-16", "UTF-16BE", "UTF-16LE", "UTF-32", "UTF-32BE", "UTF-32LE",
-    "C99", "JAVA", "UCS-2", "UCS-2BE", "UCS-2LE", "UCS-4", "UCS-4BE", "UCS-4LE", "",
-    "HZ", "GBK", "GB18030", "JOHAB", "ARMSCII-8",
-    "Georgian-Academy", "Georgian-PS", "TIS-620", "MuleLao-1", "VISCII", "TCVN",
-    "HPROMAN8", "NEXTSTEP" };
-/*
-SSA supports charset selection.
-The following known charsets are used:
-
-0 = Ansi - Western European
-1 = default
-2 = symbol
-3 = invalid
-77 = Mac
-128 = Japanese (Shift JIS)
-129 = Hangul
-130 = Johab
-134 = GB2312 Simplified Chinese
-136 = Big5 Traditional Chinese
-161 = Greek
-162 = Turkish
-163 = Vietnamese
-177 = Hebrew
-178 = Arabic
-186 = Baltic
-204 = Russian (Cyrillic)
-222 = Thai
-238 = Eastern European
-254 = PC 437
-*/
-
-static int  pi_justification[] = { 0, 1, 2 };
-static const char *ppsz_justification_text[] = {N_("Center"),N_("Left"),N_("Right")};
-
-#define ENCODING_TEXT N_("Subtitles text encoding")
-#define ENCODING_LONGTEXT N_("Set the encoding used in text subtitles")
-#define ALIGN_TEXT N_("Subtitles justification")
-#define ALIGN_LONGTEXT N_("Set the justification of subtitles")
-#define AUTODETECT_UTF8_TEXT N_("UTF-8 subtitles autodetection")
-#define AUTODETECT_UTF8_LONGTEXT N_("This enables automatic detection of " \
-            "UTF-8 encoding within subtitles files.")
-#define FORMAT_TEXT N_("Formatted Subtitles")
-#define FORMAT_LONGTEXT N_("Some subtitle formats allow for text formatting. " \
- "VLC partly implements this, but you can choose to disable all formatting.")
-
-
-vlc_module_begin();
-    set_shortname( _("Subtitles"));
-    set_description( _("Text subtitles decoder") );
-    set_capability( "decoder", 50 );
-    set_callbacks( OpenDecoder, CloseDecoder );
-    set_category( CAT_INPUT );
-    set_subcategory( SUBCAT_INPUT_SCODEC );
-
-    add_integer( "subsdec-align", 0, NULL, ALIGN_TEXT, ALIGN_LONGTEXT,
-                 VLC_FALSE );
-        change_integer_list( pi_justification, ppsz_justification_text, 0 );
-    add_string( "subsdec-encoding", DEFAULT_NAME, NULL,
-                ENCODING_TEXT, ENCODING_LONGTEXT, VLC_FALSE );
-        change_string_list( ppsz_encodings, 0, 0 );
-    add_bool( "subsdec-autodetect-utf8", VLC_TRUE, NULL,
-              AUTODETECT_UTF8_TEXT, AUTODETECT_UTF8_LONGTEXT, VLC_FALSE );
-    add_bool( "subsdec-formatted", VLC_TRUE, NULL, FORMAT_TEXT, FORMAT_LONGTEXT,
-                 VLC_FALSE );
-vlc_module_end();
-
-/*****************************************************************************
- * OpenDecoder: probe the decoder and return score
- *****************************************************************************
- * Tries to launch a decoder and return score so that the interface is able
- * to chose.
- *****************************************************************************/
-static int OpenDecoder( vlc_object_t *p_this )
-{
-    decoder_t     *p_dec = (decoder_t*)p_this;
-    decoder_sys_t *p_sys;
-    vlc_value_t    val;
-
-    if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','u','b','t') &&
-        p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') &&
-        p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') )
-    {
-        return VLC_EGENERIC;
-    }
-
-    p_dec->pf_decode_sub = DecodeBlock;
-
-    /* Allocate the memory needed to store the decoder's structure */
-    if( ( p_dec->p_sys = p_sys =
-          (decoder_sys_t *)calloc(1, sizeof(decoder_sys_t)) ) == NULL )
-    {
-        msg_Err( p_dec, "out of memory" );
-        return VLC_ENOMEM;
-    }
-
-    /* init of p_sys */
-    p_sys->i_align = 0;
-    p_sys->iconv_handle = (vlc_iconv_t)-1;
-    p_sys->b_autodetect_utf8 = VLC_FALSE;
-    p_sys->b_ass = VLC_FALSE;
-    p_sys->i_original_height = -1;
-    p_sys->i_original_width = -1;
-    TAB_INIT( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
-    TAB_INIT( p_sys->i_images, p_sys->pp_images );
-
-    char *psz_charset = NULL;
-    /* First try demux-specified encoding */
-    if( p_dec->fmt_in.subs.psz_encoding && *p_dec->fmt_in.subs.psz_encoding )
-    {
-        psz_charset = strdup (p_dec->fmt_in.subs.psz_encoding);
-        msg_Dbg (p_dec, "trying demuxer-specified character encoding: %s",
-                 p_dec->fmt_in.subs.psz_encoding ?: "not specified");
-    }
-
-    /* Second, try configured encoding */
-    if (psz_charset == NULL)
-    {
-        psz_charset = var_CreateGetNonEmptyString (p_dec, "subsdec-encoding");
-        if ((psz_charset != NULL) && !strcasecmp (psz_charset, DEFAULT_NAME))
-        {
-            free (psz_charset);
-            psz_charset = NULL;
-        }
-
-        msg_Dbg (p_dec, "trying configured character encoding: %s",
-                 psz_charset ?: "not specified");
-    }
-
-    /* Third, try "local" encoding with optional UTF-8 autodetection */
-    if (psz_charset == NULL)
-    {
-        psz_charset = strdup (GetFallbackEncoding ());
-        msg_Dbg (p_dec, "trying default character encoding: %s",
-                 psz_charset ?: "not specified");
-
-        if (var_CreateGetBool (p_dec, "subsdec-autodetect-utf8"))
-        {
-            msg_Dbg (p_dec, "using automatic UTF-8 detection");
-            p_sys->b_autodetect_utf8 = VLC_TRUE;
-        }
-    }
-
-    if (psz_charset == NULL)
-    {
-        psz_charset = strdup ("UTF-8");
-        msg_Dbg (p_dec, "trying hard-coded character encoding: %s",
-                 psz_charset ?: "error");
-    }
-
-    if (psz_charset == NULL)
-    {
-        free (p_sys);
-        return VLC_ENOMEM;
-    }
-
-    if (strcasecmp (psz_charset, "UTF-8") && strcasecmp (psz_charset, "utf8"))
-    {
-        p_sys->iconv_handle = vlc_iconv_open ("UTF-8", psz_charset);
-        if (p_sys->iconv_handle == (vlc_iconv_t)(-1))
-            msg_Err (p_dec, "cannot convert from %s: %s", psz_charset,
-                     strerror (errno));
-    }
-    free (psz_charset);
-
-    var_Create( p_dec, "subsdec-align", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
-    var_Get( p_dec, "subsdec-align", &val );
-    p_sys->i_align = val.i_int;
-
-    ParseImageAttachments( p_dec );
-
-    if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-    {
-        if( p_dec->fmt_in.i_extra > 0 )
-            ParseSSAHeader( p_dec );
-    }
-    else if( p_dec->fmt_in.i_codec == VLC_FOURCC('u','s','f',' ') && var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-    {
-        if( p_dec->fmt_in.i_extra > 0 )
-            ParseUSFHeader( p_dec );
-    }
-
-    return VLC_SUCCESS;
-}
-
-/****************************************************************************
- * DecodeBlock: the whole thing
- ****************************************************************************
- * This function must be fed with complete subtitles units.
- ****************************************************************************/
-static subpicture_t *DecodeBlock( decoder_t *p_dec, block_t **pp_block )
-{
-    subpicture_t *p_spu = NULL;
-
-    if( !pp_block || *pp_block == NULL ) return NULL;
-
-    p_spu = ParseText( p_dec, *pp_block );
-
-    block_Release( *pp_block );
-    *pp_block = NULL;
-
-    return p_spu;
-}
-
-/*****************************************************************************
- * CloseDecoder: clean up the decoder
- *****************************************************************************/
-static void CloseDecoder( vlc_object_t *p_this )
-{
-    decoder_t *p_dec = (decoder_t *)p_this;
-    decoder_sys_t *p_sys = p_dec->p_sys;
-
-    if( p_sys->iconv_handle != (vlc_iconv_t)-1 )
-        vlc_iconv_close( p_sys->iconv_handle );
-
-    if( p_sys->pp_ssa_styles )
-    {
-        int i;
-        for( i = 0; i < p_sys->i_ssa_styles; i++ )
-        {
-            if( !p_sys->pp_ssa_styles[i] )
-                continue;
-
-            if( p_sys->pp_ssa_styles[i]->psz_stylename )
-                free( p_sys->pp_ssa_styles[i]->psz_stylename );
-            if( p_sys->pp_ssa_styles[i]->font_style.psz_fontname )
-                free( p_sys->pp_ssa_styles[i]->font_style.psz_fontname );
-            if( p_sys->pp_ssa_styles[i] )
-                free( p_sys->pp_ssa_styles[i] );
-        }
-        TAB_CLEAN( p_sys->i_ssa_styles, p_sys->pp_ssa_styles );
-    }
-    if( p_sys->pp_images )
-    {
-        int i;
-        for( i = 0; i < p_sys->i_images; i++ )
-        {
-            if( !p_sys->pp_images[i] )
-                continue;
-
-            if( p_sys->pp_images[i]->p_pic )
-                p_sys->pp_images[i]->p_pic->pf_release( p_sys->pp_images[i]->p_pic );
-            if( p_sys->pp_images[i]->psz_filename )
-                free( p_sys->pp_images[i]->psz_filename );
-
-            free( p_sys->pp_images[i] );
-        }
-        TAB_CLEAN( p_sys->i_images, p_sys->pp_images );
-    }
-
-    free( p_sys );
-}
-
-/*****************************************************************************
- * ParseText: parse an text subtitle packet and send it to the video output
- *****************************************************************************/
-static subpicture_t *ParseText( decoder_t *p_dec, block_t *p_block )
-{
-    decoder_sys_t *p_sys = p_dec->p_sys;
-    subpicture_t *p_spu = NULL;
-    char *psz_subtitle = NULL;
-    video_format_t fmt;
-
-    /* We cannot display a subpicture with no date */
-    if( p_block->i_pts == 0 )
-    {
-        msg_Warn( p_dec, "subtitle without a date" );
-        return NULL;
-    }
-
-    /* Check validity of packet data */
-    /* An "empty" line containing only \0 can be used to force
-       and ephemer picture from the screen */
-    if( p_block->i_buffer < 1 )
-    {
-        msg_Warn( p_dec, "no subtitle data" );
-        return NULL;
-    }
-
-    /* Should be resiliant against bad subtitles */
-    psz_subtitle = strndup( (const char *)p_block->p_buffer,
-                            p_block->i_buffer );
-    if( psz_subtitle == NULL )
-        return NULL;
-
-    if( p_sys->iconv_handle == (vlc_iconv_t)-1 )
-    {
-        if (EnsureUTF8( psz_subtitle ) == NULL)
-        {
-            msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
-                     "Try manually setting a character-encoding "
-                     "before you open the file.") );
-        }
-    }
-    else
-    {
-
-        if( p_sys->b_autodetect_utf8 )
-        {
-            if( IsUTF8( psz_subtitle ) == NULL )
-            {
-                msg_Dbg( p_dec, "invalid UTF-8 sequence: "
-                         "disabling UTF-8 subtitles autodetection" );
-                p_sys->b_autodetect_utf8 = VLC_FALSE;
-            }
-        }
-
-        if( !p_sys->b_autodetect_utf8 )
-        {
-            size_t inbytes_left = strlen( psz_subtitle );
-            size_t outbytes_left = 6 * inbytes_left;
-            char *psz_new_subtitle = malloc( outbytes_left + 1 );
-            char *psz_convert_buffer_out = psz_new_subtitle;
-            const char *psz_convert_buffer_in = psz_subtitle;
-
-            size_t ret = vlc_iconv( p_sys->iconv_handle,
-                                    &psz_convert_buffer_in, &inbytes_left,
-                                    &psz_convert_buffer_out, &outbytes_left );
-
-            *psz_convert_buffer_out++ = '\0';
-            free( psz_subtitle );
-
-            if( ( ret == (size_t)(-1) ) || inbytes_left )
-            {
-                free( psz_new_subtitle );
-                msg_Err( p_dec, _("failed to convert subtitle encoding.\n"
-                        "Try manually setting a character-encoding "
-                                "before you open the file.") );
-                return NULL;
-            }
-
-            psz_subtitle = realloc( psz_new_subtitle,
-                                    psz_convert_buffer_out - psz_new_subtitle );
-        }
-    }
-
-    /* Create the subpicture unit */
-    p_spu = p_dec->pf_spu_buffer_new( p_dec );
-    if( !p_spu )
-    {
-        msg_Warn( p_dec, "can't get spu buffer" );
-        if( psz_subtitle ) free( psz_subtitle );
-        return NULL;
-    }
-
-    p_spu->b_pausable = VLC_TRUE;
-
-    /* Create a new subpicture region */
-    memset( &fmt, 0, sizeof(video_format_t) );
-    fmt.i_chroma = VLC_FOURCC('T','E','X','T');
-    fmt.i_aspect = 0;
-    fmt.i_width = fmt.i_height = 0;
-    fmt.i_x_offset = fmt.i_y_offset = 0;
-    p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
-    if( !p_spu->p_region )
-    {
-        msg_Err( p_dec, "cannot allocate SPU region" );
-        if( psz_subtitle ) free( psz_subtitle );
-        p_dec->pf_spu_buffer_del( p_dec, p_spu );
-        return NULL;
-    }
-
-    /* Decode and format the subpicture unit */
-    if( p_dec->fmt_in.i_codec != VLC_FOURCC('s','s','a',' ') &&
-        p_dec->fmt_in.i_codec != VLC_FOURCC('u','s','f',' ') )
-    {
-        /* Normal text subs, easy markup */
-        p_spu->p_region->i_align = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
-        p_spu->i_x = p_sys->i_align ? 20 : 0;
-        p_spu->i_y = 10;
-
-        /* Remove formatting from string */
-
-        p_spu->p_region->psz_text = StripTags( psz_subtitle );
-        if( var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-        {
-            p_spu->p_region->psz_html = CreateHtmlSubtitle( psz_subtitle );
-        }
-
-        p_spu->i_start = p_block->i_pts;
-        p_spu->i_stop = p_block->i_pts + p_block->i_length;
-        p_spu->b_ephemer = (p_block->i_length == 0);
-        p_spu->b_absolute = VLC_FALSE;
-    }
-    else
-    {
-        /* Decode SSA/USF strings */
-        if( p_dec->fmt_in.i_codec == VLC_FOURCC('s','s','a',' ') )
-            ParseSSAString( p_dec, psz_subtitle, p_spu );
-        else
-        {
-            p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_spu->p_region );
-            p_spu->p_region = ParseUSFString( p_dec, psz_subtitle, p_spu );
-        }
-
-        p_spu->i_start = p_block->i_pts;
-        p_spu->i_stop = p_block->i_pts + p_block->i_length;
-        p_spu->b_ephemer = (p_block->i_length == 0);
-        p_spu->b_absolute = VLC_FALSE;
-        p_spu->i_original_picture_width = p_sys->i_original_width;
-        p_spu->i_original_picture_height = p_sys->i_original_height;
-    }
-    if( psz_subtitle ) free( psz_subtitle );
-
-    return p_spu;
-}
-
-static char *GrabAttributeValue( const char *psz_attribute,
-                                 const char *psz_tag_start )
-{
-    if( psz_attribute && psz_tag_start )
-    {
-        char *psz_tag_end = strchr( psz_tag_start, '>' );
-        char *psz_found   = strcasestr( psz_tag_start, psz_attribute );
-
-        if( psz_found )
-        {
-            psz_found += strlen( psz_attribute );
-
-            if(( *(psz_found++) == '=' ) &&
-               ( *(psz_found++) == '\"' ))
-            {
-                if( psz_found < psz_tag_end )
-                {
-                    int   i_len = strcspn( psz_found, "\"" );
-                    return strndup( psz_found, i_len );
-                }
-            }
-        }
-    }
-    return NULL;
-}
-
-static ssa_style_t *ParseStyle( decoder_sys_t *p_sys, char *psz_subtitle )
-{
-    ssa_style_t *p_style   = NULL;
-    char        *psz_style = GrabAttributeValue( "style", psz_subtitle );
-
-    if( psz_style )
-    {
-        int i;
-
-        for( i = 0; i < p_sys->i_ssa_styles; i++ )
-        {
-            if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
-                p_style = p_sys->pp_ssa_styles[i];
-        }
-        free( psz_style );
-    }
-    return p_style;
-}
-
-static int ParsePositionAttributeList( char *psz_subtitle, int *i_align, int *i_x, int *i_y )
-{
-    int   i_mask = 0;
-
-    char *psz_align    = GrabAttributeValue( "alignment", psz_subtitle );
-    char *psz_margin_x = GrabAttributeValue( "horizontal-margin", psz_subtitle );
-    char *psz_margin_y = GrabAttributeValue( "vertical-margin", psz_subtitle );
-    /* -- UNSUPPORTED
-    char *psz_relative = GrabAttributeValue( "relative-to", psz_subtitle );
-    char *psz_rotate_x = GrabAttributeValue( "rotate-x", psz_subtitle );
-    char *psz_rotate_y = GrabAttributeValue( "rotate-y", psz_subtitle );
-    char *psz_rotate_z = GrabAttributeValue( "rotate-z", psz_subtitle );
-    */
-
-    *i_align = SUBPICTURE_ALIGN_BOTTOM;
-    *i_x = 0;
-    *i_y = 0;
-
-    if( psz_align )
-    {
-        if( !strcasecmp( "TopLeft", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_LEFT;
-        else if( !strcasecmp( "TopCenter", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_TOP;
-        else if( !strcasecmp( "TopRight", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_TOP | SUBPICTURE_ALIGN_RIGHT;
-        else if( !strcasecmp( "MiddleLeft", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_LEFT;
-        else if( !strcasecmp( "MiddleCenter", psz_align ) )
-            *i_align = 0;
-        else if( !strcasecmp( "MiddleRight", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_RIGHT;
-        else if( !strcasecmp( "BottomLeft", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_LEFT;
-        else if( !strcasecmp( "BottomCenter", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_BOTTOM;
-        else if( !strcasecmp( "BottomRight", psz_align ) )
-            *i_align = SUBPICTURE_ALIGN_BOTTOM | SUBPICTURE_ALIGN_RIGHT;
-
-        i_mask |= ATTRIBUTE_ALIGNMENT;
-        free( psz_align );
-    }
-    if( psz_margin_x )
-    {
-        *i_x = atoi( psz_margin_x );
-        if( strchr( psz_margin_x, '%' ) )
-            i_mask |= ATTRIBUTE_X_PERCENT;
-        else
-            i_mask |= ATTRIBUTE_X;
-
-        free( psz_margin_x );
-    }
-    if( psz_margin_y )
-    {
-        *i_y = atoi( psz_margin_y );
-        if( strchr( psz_margin_y, '%' ) )
-            i_mask |= ATTRIBUTE_Y_PERCENT;
-        else
-            i_mask |= ATTRIBUTE_Y;
-
-        free( psz_margin_y );
-    }
-    return i_mask;
-}
-
-static void SetupPositions( subpicture_region_t *p_region, char *psz_subtitle )
-{
-    int           i_mask = 0;
-    int           i_align;
-    int           i_x, i_y;
-
-    i_mask = ParsePositionAttributeList( psz_subtitle, &i_align, &i_x, &i_y );
-
-    if( i_mask & ATTRIBUTE_ALIGNMENT )
-        p_region->i_align = i_align;
-
-    /* TODO: Setup % based offsets properly, without adversely affecting
-     *       everything else in vlc. Will address with separate patch, to
-     *       prevent this one being any more complicated.
-     */
-    if( i_mask & ATTRIBUTE_X )
-        p_region->i_x = i_x;
-    else if( i_mask & ATTRIBUTE_X_PERCENT )
-        p_region->i_x = 0;
-
-    if( i_mask & ATTRIBUTE_Y )
-        p_region->i_y = i_y;
-    else if( i_mask & ATTRIBUTE_Y_PERCENT )
-        p_region->i_y = 0;
-}
-
-static subpicture_region_t *CreateTextRegion( decoder_t *p_dec,
-                                              subpicture_t *p_spu,
-                                              char *psz_subtitle,
-                                              int i_len,
-                                              int i_sys_align )
-{
-    decoder_sys_t        *p_sys = p_dec->p_sys;
-    subpicture_region_t  *p_text_region;
-    video_format_t        fmt;
-
-    /* Create a new subpicture region */
-    memset( &fmt, 0, sizeof(video_format_t) );
-    fmt.i_chroma = VLC_FOURCC('T','E','X','T');
-    fmt.i_aspect = 0;
-    fmt.i_width = fmt.i_height = 0;
-    fmt.i_x_offset = fmt.i_y_offset = 0;
-    p_text_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt );
-
-    if( p_text_region != NULL )
-    {
-        ssa_style_t  *p_style = NULL;
-
-        p_text_region->psz_text = NULL;
-        p_text_region->psz_html = strndup( psz_subtitle, i_len );
-        if( ! p_text_region->psz_html )
-        {
-            msg_Err( p_dec, "out of memory" );
-            p_spu->pf_destroy_region( VLC_OBJECT(p_dec), p_text_region );
-            return NULL;
-        }
-
-        p_style = ParseStyle( p_sys, p_text_region->psz_html );
-        if( !p_style )
-        {
-            int i;
-
-            for( i = 0; i < p_sys->i_ssa_styles; i++ )
-            {
-                if( !strcasecmp( p_sys->pp_ssa_styles[i]->psz_stylename, "Default" ) )
-                    p_style = p_sys->pp_ssa_styles[i];
-            }
-        }
-
-        if( p_style )
-        {
-            msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename );
-
-            p_text_region->p_style = &p_style->font_style;
-            p_text_region->i_align = p_style->i_align;
-
-            /* TODO: Setup % based offsets properly, without adversely affecting
-             *       everything else in vlc. Will address with separate patch,
-             *       to prevent this one being any more complicated.
-
-                     * p_style->i_margin_percent_h;
-                     * p_style->i_margin_percent_v;
-             */
-            p_text_region->i_x         = p_style->i_margin_h;
-            p_text_region->i_y         = p_style->i_margin_v;
-
-        }
-        else
-        {
-            p_text_region->i_align = SUBPICTURE_ALIGN_BOTTOM | i_sys_align;
-            p_text_region->i_x = i_sys_align ? 20 : 0;
-            p_text_region->i_y = 10;
-        }
-        /* Look for position arguments which may override the style-based
-         * defaults.
-         */
-        SetupPositions( p_text_region, psz_subtitle );
-
-        p_text_region->p_next = NULL;
-    }
-    return p_text_region;
-}
-
-static subpicture_region_t *ParseUSFString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
-{
-    decoder_sys_t        *p_sys = p_dec->p_sys;
-    subpicture_t         *p_spu = p_spu_in;
-    subpicture_region_t  *p_region_first = NULL;
-    subpicture_region_t  *p_region_upto  = p_region_first;
-
-    while( *psz_subtitle )
-    {
-        if( *psz_subtitle == '<' )
-        {
-            char *psz_end = NULL;
-
-            if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
-               ( !strncasecmp( psz_subtitle, "<text>", 6 )))
-            {
-                psz_end = strcasestr( psz_subtitle, "</text>" );
-
-                if( psz_end )
-                {
-                    subpicture_region_t  *p_text_region;
-
-                    psz_end += strcspn( psz_end, ">" ) + 1;
-
-                    p_text_region = CreateTextRegion( p_dec,
-                                                      p_spu,
-                                                      psz_subtitle,
-                                                      psz_end - psz_subtitle,
-                                                      p_sys->i_align );
-
-                    if( p_text_region )
-                    {
-                        p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
-
-                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-                        {
-                            free( p_text_region->psz_html );
-                            p_text_region->psz_html = NULL;
-                        }
-                    }
-
-                    if( !p_region_first )
-                    {
-                        p_region_first = p_region_upto = p_text_region;
-                    }
-                    else if( p_text_region )
-                    {
-                        p_region_upto->p_next = p_text_region;
-                        p_region_upto = p_region_upto->p_next;
-                    }
-                }
-            }
-            else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
-                    ( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
-            {
-                psz_end = strcasestr( psz_subtitle, "</karaoke>" );
-
-                if( psz_end )
-                {
-                    subpicture_region_t  *p_text_region;
-
-                    psz_end += strcspn( psz_end, ">" ) + 1;
-
-                    p_text_region = CreateTextRegion( p_dec,
-                                                      p_spu,
-                                                      psz_subtitle,
-                                                      psz_end - psz_subtitle,
-                                                      p_sys->i_align );
-
-                    if( p_text_region )
-                    {
-                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
-                        {
-                            free( p_text_region->psz_html );
-                            p_text_region->psz_html = NULL;
-                        }
-                    }
-                    if( !p_region_first )
-                    {
-                        p_region_first = p_region_upto = p_text_region;
-                    }
-                    else if( p_text_region )
-                    {
-                        p_region_upto->p_next = p_text_region;
-                        p_region_upto = p_region_upto->p_next;
-                    }
-                }
-            }
-            else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
-                    ( !strncasecmp( psz_subtitle, "<image>", 7 )))
-            {
-                subpicture_region_t *p_image_region = NULL;
-
-                char *psz_end = strcasestr( psz_subtitle, "</image>" );
-                char *psz_content = strchr( psz_subtitle, '>' );
-                int   i_transparent = -1;
-
-                /* If a colorkey parameter is specified, then we have to map
-                 * that index in the picture through as transparent (it is
-                 * required by the USF spec but is also recommended that if the
-                 * creator really wants a transparent colour that they use a
-                 * type like PNG that properly supports it; this goes doubly
-                 * for VLC because the pictures are stored internally in YUV
-                 * and the resulting colour-matching may not produce the
-                 * desired results.)
-                 */
-                char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
-                if( psz_tmp )
-                {
-                    if( *psz_tmp == '#' )
-                        i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
-                    free( psz_tmp );
-                }
-                if( psz_content && ( psz_content < psz_end ) )
-                {
-                    char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
-                    if( psz_filename )
-                    {
-                        p_image_region = LoadEmbeddedImage( p_dec, p_spu, psz_filename, i_transparent );
-                        free( psz_filename );
-                    }
-                }
-
-                if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
-
-                if( p_image_region )
-                {
-                    SetupPositions( p_image_region, psz_subtitle );
-
-                    p_image_region->p_next   = NULL;
-                    p_image_region->psz_text = NULL;
-                    p_image_region->psz_html = NULL;
-
-                }
-                if( !p_region_first )
-                {
-                    p_region_first = p_region_upto = p_image_region;
-                }
-                else if( p_image_region )
-                {
-                    p_region_upto->p_next = p_image_region;
-                    p_region_upto = p_region_upto->p_next;
-                }
-            }
-            if( psz_end )
-                psz_subtitle = psz_end - 1;
-
-            psz_subtitle += strcspn( psz_subtitle, ">" );
-        }
-
-        psz_subtitle++;
-    }
-
-    return p_region_first;
-}
-
-static void ParseSSAString( decoder_t *p_dec, char *psz_subtitle, subpicture_t *p_spu_in )
-{
-    /* We expect MKV formatted SSA:
-     * ReadOrder, Layer, Style, CharacterName, MarginL, MarginR,
-     * MarginV, Effect, Text */
-    decoder_sys_t   *p_sys = p_dec->p_sys;
-    subpicture_t    *p_spu = p_spu_in;
-    ssa_style_t     *p_style = NULL;
-    char            *psz_new_subtitle = NULL;
-    char            *psz_buffer_sub = NULL;
-    char            *psz_style = NULL;
-    char            *psz_style_start = NULL;
-    char            *psz_style_end = NULL;
-    int             i_text = 0, i_comma = 0, i_strlen = 0, i;
-    int             i_margin_l = 0, i_margin_r = 0, i_margin_v = 0;
-
-    psz_buffer_sub = psz_subtitle;
-
-    p_spu->p_region->psz_html = NULL;
-
-    i_comma = 0;
-    while( i_comma < 8 && *psz_buffer_sub != '\0' )
-    {
-        if( *psz_buffer_sub == ',' )
-        {
-            i_comma++;
-            if( i_comma == 2 )
-                psz_style_start = &psz_buffer_sub[1];
-            else if( i_comma == 3 )
-                psz_style_end = &psz_buffer_sub[0];
-            else if( i_comma == 4 )
-                i_margin_l = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
-            else if( i_comma == 5 )
-                i_margin_r = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
-            else if( i_comma == 6 )
-                i_margin_v = (int)strtol( &psz_buffer_sub[1], NULL, 10 );
-        }
-        psz_buffer_sub++;
-    }
-
-    if( *psz_buffer_sub == '\0' && i_comma == 8 )
-    {
-        msg_Dbg( p_dec, "couldn't find all fields in this SSA line" );
-        return;
-    }
-
-    psz_new_subtitle = malloc( strlen( psz_buffer_sub ) + 1);
-    i_text = 0;
-    while( psz_buffer_sub[0] != '\0' )
-    {
-        if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'n' )
-        {
-            psz_new_subtitle[i_text] = ' ';
-            i_text++;
-            psz_buffer_sub += 2;
-        }
-        else if( psz_buffer_sub[0] == '\\' && psz_buffer_sub[1] == 'N' )
-        {
-            psz_new_subtitle[i_text] = '\n';
-            i_text++;
-            psz_buffer_sub += 2;
-        }
-        else if( psz_buffer_sub[0] == '{' &&
-                 psz_buffer_sub[1] == '\\' )
-        {
-            /* SSA control code */
-            while( psz_buffer_sub[0] != '\0' &&
-                   psz_buffer_sub[0] != '}' )
-            {
-                psz_buffer_sub++;
-            }
-            psz_buffer_sub++;
-        }
-        else
-        {
-            psz_new_subtitle[i_text] = psz_buffer_sub[0];
-            i_text++;
-            psz_buffer_sub++;
-        }
-    }
-    psz_new_subtitle[i_text] = '\0';
-
-    i_strlen = __MAX( psz_style_end - psz_style_start, 0);
-    psz_style = strndup( psz_style_start, i_strlen );
-
-    for( i = 0; i < p_sys->i_ssa_styles; i++ )
-    {
-        if( !strcmp( p_sys->pp_ssa_styles[i]->psz_stylename, psz_style ) )
-            p_style = p_sys->pp_ssa_styles[i];
-    }
-    if( psz_style ) free( psz_style );
-
-    p_spu->p_region->psz_text = psz_new_subtitle;
-    if( p_style == NULL )
-    {
-        p_spu->p_region->i_align = SUBPICTURE_ALIGN_BOTTOM | p_sys->i_align;
-        p_spu->i_x = p_sys->i_align ? 20 : 0;
-        p_spu->i_y = 10;
-    }
-    else
-    {
-        msg_Dbg( p_dec, "style is: %s", p_style->psz_stylename);
-        p_spu->p_region->p_style = &p_style->font_style;
-        p_spu->p_region->i_align = p_style->i_align;
-        if( p_style->i_align & SUBPICTURE_ALIGN_LEFT )
-        {
-            p_spu->i_x = (i_margin_l) ? i_margin_l : p_style->i_margin_h;
-        }
-        else if( p_style->i_align & SUBPICTURE_ALIGN_RIGHT )
-        {
-            p_spu->i_x = (i_margin_r) ? i_margin_r : p_style->i_margin_h;
-        }
-        p_spu->i_y = (i_margin_v) ? i_margin_v : p_style->i_margin_v;
-    }
-}
-
-static char* GotoNextLine( char *psz_text )
-{
-    char *p_newline = psz_text;
-
-    while( p_newline[0] != '\0' )
-    {
-        if( p_newline[0] == '\n' || p_newline[0] == '\r' )
-        {
-            p_newline++;
-            while( p_newline[0] == '\n' || p_newline[0] == '\r' )
-                p_newline++;
-            break;
-        }
-        else p_newline++;
-    }
-    return p_newline;
-}
-
-/*****************************************************************************
- * ParseColor: SSA stores color in BBGGRR, in ASS it uses AABBGGRR
- * The string value in the string can be a pure integer, or hexadecimal &HBBGGRR
- *****************************************************************************/
-static void ParseColor( decoder_t *p_dec, char *psz_color, int *pi_color, int *pi_alpha )
-{
-    int i_color = 0;
-    if( !strncasecmp( psz_color, "&H", 2 ) )
-    {
-        /* textual HEX representation */
-        i_color = (int) strtol( psz_color+2, NULL, 16 );
-    }
-    else i_color = (int) strtol( psz_color, NULL, 0 );
-
-    *pi_color = 0;
-    *pi_color |= ( ( i_color & 0x000000FF ) << 16 ); /* Red */
-    *pi_color |= ( ( i_color & 0x0000FF00 ) );       /* Green */
-    *pi_color |= ( ( i_color & 0x00FF0000 ) >> 16 ); /* Blue */
-
-    if( pi_alpha != NULL )
-        *pi_alpha = ( i_color & 0xFF000000 ) >> 24;
-}
-
-static int ParseImageAttachments( decoder_t *p_dec )
-{
-    decoder_sys_t        *p_sys = p_dec->p_sys;
-    input_attachment_t  **pp_attachments;
-    int                   i_attachments_cnt;
-    int                   k = 0;
-
-    if( VLC_SUCCESS != decoder_GetInputAttachments( p_dec, &pp_attachments, &i_attachments_cnt ))
-        return VLC_EGENERIC;
-
-    for( k = 0; k < i_attachments_cnt; k++ )
-    {
-        input_attachment_t *p_attach = pp_attachments[k];
-
-        vlc_fourcc_t  type  = 0;
-
-        if( ( !strcmp( p_attach->psz_mime, "image/bmp" ) )      || /* BMP */
-            ( !strcmp( p_attach->psz_mime, "image/x-bmp" ) )    ||
-            ( !strcmp( p_attach->psz_mime, "image/x-bitmap" ) ) ||
-            ( !strcmp( p_attach->psz_mime, "image/x-ms-bmp" ) ) )
-        {
-             type = VLC_FOURCC('b','m','p',' ');
-        }
-        else if( ( !strcmp( p_attach->psz_mime, "image/x-portable-anymap" ) )  || /* PNM */
-                 ( !strcmp( p_attach->psz_mime, "image/x-portable-bitmap" ) )  || /* PBM */
-                 ( !strcmp( p_attach->psz_mime, "image/x-portable-graymap" ) ) || /* PGM */
-                 ( !strcmp( p_attach->psz_mime, "image/x-portable-pixmap" ) ) )   /* PPM */
-        {
-            type = VLC_FOURCC('p','n','m',' ');
-        }
-        else if ( !strcmp( p_attach->psz_mime, "image/gif" ) )         /* GIF */
-            type = VLC_FOURCC('g','i','f',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/jpeg" ) )        /* JPG, JPEG */
-            type = VLC_FOURCC('j','p','e','g');
-        else if ( !strcmp( p_attach->psz_mime, "image/pcx" ) )         /* PCX */
-            type = VLC_FOURCC('p','c','x',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/png" ) )         /* PNG */
-            type = VLC_FOURCC('p','n','g',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/tiff" ) )        /* TIF, TIFF */
-            type = VLC_FOURCC('t','i','f','f');
-        else if ( !strcmp( p_attach->psz_mime, "image/x-tga" ) )       /* TGA */
-            type = VLC_FOURCC('t','g','a',' ');
-        else if ( !strcmp( p_attach->psz_mime, "image/x-xpixmap") )    /* XPM */
-            type = VLC_FOURCC('x','p','m',' ');
-
-        if( ( type != 0 ) &&
-            ( p_attach->i_data > 0 ) &&
-            ( p_attach->p_data != NULL ) )
-        {
-            picture_t         *p_pic = NULL;
-            image_handler_t   *p_image;
-
-            p_image = image_HandlerCreate( p_dec );
-            if( p_image != NULL )
-            {
-                block_t   *p_block;
-
-                p_block = block_New( p_image->p_parent, p_attach->i_data );
-
-                if( p_block != NULL )
-                {
-                    video_format_t     fmt_in;
-                    video_format_t     fmt_out;
-
-                    memcpy( p_block->p_buffer, p_attach->p_data, p_attach->i_data );
-
-                    memset( &fmt_in,  0, sizeof( video_format_t));
-                    memset( &fmt_out, 0, sizeof( video_format_t));
-
-                    fmt_in.i_chroma  = type;
-                    fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
-
-                    /* Find a suitable decoder module */
-                    if( module_Exists( p_dec, "SDL Image decoder" ) )
-                    {
-                        /* ffmpeg thinks it can handle bmp properly but it can't (at least
-                         * not all of them), so use sdl_image if it is available */
-
-                        vlc_value_t val;
-
-                        var_Create( p_dec, "codec", VLC_VAR_MODULE | VLC_VAR_DOINHERIT );
-                        val.psz_string = (char*) "sdl_image";
-                        var_Set( p_dec, "codec", val );
-                    }
-
-                    p_pic = image_Read( p_image, p_block, &fmt_in, &fmt_out );
-                    var_Destroy( p_dec, "codec" );
-                }
-
-                image_HandlerDelete( p_image );
-            }
-            if( p_pic )
-            {
-                image_attach_t *p_picture = malloc( sizeof(image_attach_t) );
-
-                if( p_picture )
-                {
-                    p_picture->psz_filename = strdup( p_attach->psz_name );
-                    p_picture->p_pic = p_pic;
-
-                    TAB_APPEND( p_sys->i_images, p_sys->pp_images, p_picture );
-                }
-            }
-        }
-        vlc_input_attachment_Delete( pp_attachments[ k ] );
-    }
-    free( pp_attachments );
-
-    return VLC_SUCCESS;
-}
-
-/*****************************************************************************
- * ParseUSFHeader: Retrieve global formatting information etc
- *****************************************************************************/
-static void ParseUSFHeader( decoder_t *p_dec )
-{
-    stream_t      *p_sub = NULL;
-    xml_t         *p_xml = NULL;
-    xml_reader_t  *p_xml_reader = NULL;
-
-    p_sub = stream_MemoryNew( VLC_OBJECT(p_dec),
-                              p_dec->fmt_in.p_extra,
-                              p_dec->fmt_in.i_extra,
-                              VLC_TRUE );
-    if( !p_sub )
-        return;
-
-    p_xml = xml_Create( p_dec );
-    if( p_xml )
-    {
-        p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
-        if( p_xml_reader )
-        {
-            /* Look for Root Node */
-            if( xml_ReaderRead( p_xml_reader ) == 1 )
-            {
-                char *psz_node = xml_ReaderName( p_xml_reader );
-
-                if( !strcasecmp( "usfsubtitles", psz_node ) )
-                    ParseUSFHeaderTags( p_dec, p_xml_reader );
-
-                free( psz_node );
-            }
-
-            xml_ReaderDelete( p_xml, p_xml_reader );
-        }
-        xml_Delete( p_xml );
-    }
-    stream_Delete( p_sub );
-}
+#include "subsdec.h"
 
 static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
 {
@@ -1270,7 +83,8 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
                 {
                     i_metadata_level++;
                 }
-                else if( !strcasecmp( "resolution", psz_node ) && (i_metadata_level == 1) )
+                else if( !strcasecmp( "resolution", psz_node ) &&
+                         ( i_metadata_level == 1) )
                 {
                     while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
                     {
@@ -1346,7 +160,8 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
                         {
                             if( !strcasecmp( "face", psz_name ) )
                             {
-                                if( p_style->font_style.psz_fontname ) free( p_style->font_style.psz_fontname );
+                                if( p_style->font_style.psz_fontname )
+                                    free( p_style->font_style.psz_fontname );
                                 p_style->font_style.psz_fontname = strdup( psz_value );
                             }
                             else if( !strcasecmp( "size", psz_name ) )
@@ -1356,7 +171,8 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
                                     int i_value = atoi( psz_value );
 
                                     if( ( i_value >= -5 ) && ( i_value <= 5 ) )
-                                        p_style->font_style.i_font_size  += ( i_value * p_style->font_style.i_font_size ) / 10;
+                                        p_style->font_style.i_font_size  +=
+                                            ( i_value * p_style->font_style.i_font_size ) / 10;
                                     else if( i_value < -5 )
                                         p_style->font_style.i_font_size  = - i_value;
                                     else if( i_value > 5 )
@@ -1486,630 +302,227 @@ static void ParseUSFHeaderTags( decoder_t *p_dec, xml_reader_t *p_xml_reader )
                             {
                                 if( strchr( psz_value, '%' ) )
                                 {
-                                    p_style->i_margin_v = 0;
-                                    p_style->i_margin_percent_v = atoi( psz_value );
-                                }
-                                else
-                                {
-                                    p_style->i_margin_v = atoi( psz_value );
-                                    p_style->i_margin_percent_v = 0;
-                                }
-                            }
-                        }
-                        if( psz_name )  free( psz_name );
-                        if( psz_value ) free( psz_value );
-                    }
-                }
-
-                free( psz_node );
-                break;
-        }
-    }
-    if( p_style ) free( p_style );
-}
-/*****************************************************************************
- * ParseSSAHeader: Retrieve global formatting information etc
- *****************************************************************************/
-static void ParseSSAHeader( decoder_t *p_dec )
-{
-    decoder_sys_t *p_sys = p_dec->p_sys;
-    char *psz_parser = NULL;
-    char *psz_header = malloc( p_dec->fmt_in.i_extra+1 );
-    int i_section_type = 1;
-
-    memcpy( psz_header, p_dec->fmt_in.p_extra, p_dec->fmt_in.i_extra );
-    psz_header[ p_dec->fmt_in.i_extra] = '\0';
-
-    /* Handle [Script Info] section */
-    psz_parser = strcasestr( psz_header, "[Script Info]" );
-    if( psz_parser == NULL ) goto eof;
-
-    psz_parser = GotoNextLine( psz_parser );
-
-    while( psz_parser[0] != '\0' )
-    {
-        int temp;
-        char buffer_text[MAX_LINE + 1];
-
-        if( psz_parser[0] == '!' || psz_parser[0] == ';' ) /* comment */;
-        else if( sscanf( psz_parser, "PlayResX: %d", &temp ) == 1 )
-            p_sys->i_original_width = ( temp > 0 ) ? temp : -1;
-        else if( sscanf( psz_parser, "PlayResY: %d", &temp ) == 1 )
-            p_sys->i_original_height = ( temp > 0 ) ? temp : -1;
-        else if( sscanf( psz_parser, "Script Type: %8192s", buffer_text ) == 1 )
-        {
-            if( !strcasecmp( buffer_text, "V4.00+" ) ) p_sys->b_ass = VLC_TRUE;
-        }
-        else if( !strncasecmp( psz_parser, "[V4 Styles]", 11 ) )
-            i_section_type = 1;
-        else if( !strncasecmp( psz_parser, "[V4+ Styles]", 12) )
-        {
-            i_section_type = 2;
-            p_sys->b_ass = VLC_TRUE;
-        }
-        else if( !strncasecmp( psz_parser, "[Events]", 8 ) )
-            i_section_type = 4;
-        else if( !strncasecmp( psz_parser, "Style:", 6 ) )
-        {
-            int i_font_size, i_bold, i_italic, i_border, i_outline, i_shadow, i_underline,
-                i_strikeout, i_scale_x, i_scale_y, i_spacing, i_align, i_margin_l, i_margin_r, i_margin_v;
-
-            char psz_temp_stylename[MAX_LINE+1];
-            char psz_temp_fontname[MAX_LINE+1];
-            char psz_temp_color1[MAX_LINE+1];
-            char psz_temp_color2[MAX_LINE+1];
-            char psz_temp_color3[MAX_LINE+1];
-            char psz_temp_color4[MAX_LINE+1];
-
-            if( i_section_type == 1 ) /* V4 */
-            {
-                if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
-                    psz_temp_stylename, psz_temp_fontname, &i_font_size,
-                    psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
-                    &i_border, &i_outline, &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 16 )
-                {
-                    ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
-
-                    p_style->psz_stylename = strdup( psz_temp_stylename );
-                    p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
-                    p_style->font_style.i_font_size = i_font_size;
-
-                    ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, NULL );
-                    ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, NULL );
-                    p_style->font_style.i_outline_color = p_style->font_style.i_shadow_color;
-                    p_style->font_style.i_font_alpha = p_style->font_style.i_outline_alpha = p_style->font_style.i_shadow_alpha = 0x00;
-                    p_style->font_style.i_style_flags = 0;
-                    if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
-                    if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
-
-                    if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
-                    else if( i_border == 3 )
-                    {
-                        p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
-                        p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
-                        p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
+                                    p_style->i_margin_v = 0;
+                                    p_style->i_margin_percent_v = atoi( psz_value );
+                                }
+                                else
+                                {
+                                    p_style->i_margin_v = atoi( psz_value );
+                                    p_style->i_margin_percent_v = 0;
+                                }
+                            }
+                        }
+                        if( psz_name )  free( psz_name );
+                        if( psz_value ) free( psz_value );
                     }
-                    p_style->font_style.i_shadow_width = i_shadow;
-                    p_style->font_style.i_outline_width = i_outline;
-
-                    p_style->i_align = 0;
-                    if( i_align == 1 || i_align == 5 || i_align == 9 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
-                    if( i_align == 3 || i_align == 7 || i_align == 11 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
-                    if( i_align < 4 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
-                    else if( i_align < 8 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
-
-                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
-                    p_style->i_margin_v = i_margin_v;
-                    p_style->i_margin_percent_h = 0;
-                    p_style->i_margin_percent_v = 0;
-
-                    p_style->font_style.i_karaoke_background_color = 0xffffff;
-                    p_style->font_style.i_karaoke_background_alpha = 0xff;
-
-                    TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
                 }
-                else msg_Warn( p_dec, "SSA v4 styleline parsing failed" );
-            }
-            else if( i_section_type == 2 ) /* V4+ */
-            {
-                /* Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour,
-                   Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline,
-                   Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
-                */
-                if( sscanf( psz_parser, "Style: %8192[^,],%8192[^,],%d,%8192[^,],%8192[^,],%8192[^,],%8192[^,],%d,%d,%d,%d,%d,%d,%d,%*f,%d,%d,%d,%d,%d,%d,%d%*[^\r\n]",
-                    psz_temp_stylename, psz_temp_fontname, &i_font_size,
-                    psz_temp_color1, psz_temp_color2, psz_temp_color3, psz_temp_color4, &i_bold, &i_italic,
-                    &i_underline, &i_strikeout, &i_scale_x, &i_scale_y, &i_spacing, &i_border, &i_outline,
-                    &i_shadow, &i_align, &i_margin_l, &i_margin_r, &i_margin_v ) == 21 )
-                {
-                    ssa_style_t *p_style = malloc( sizeof(ssa_style_t) );
-
-                    p_style->psz_stylename = strdup( psz_temp_stylename );
-                    p_style->font_style.psz_fontname = strdup( psz_temp_fontname );
-                    p_style->font_style.i_font_size = i_font_size;
-                    msg_Dbg( p_dec, psz_temp_color1 );
-                    ParseColor( p_dec, psz_temp_color1, &p_style->font_style.i_font_color, &p_style->font_style.i_font_alpha );
-                    ParseColor( p_dec, psz_temp_color3, &p_style->font_style.i_outline_color, &p_style->font_style.i_outline_alpha );
-                    ParseColor( p_dec, psz_temp_color4, &p_style->font_style.i_shadow_color, &p_style->font_style.i_shadow_alpha );
-
-                    p_style->font_style.i_style_flags = 0;
-                    if( i_bold ) p_style->font_style.i_style_flags |= STYLE_BOLD;
-                    if( i_italic ) p_style->font_style.i_style_flags |= STYLE_ITALIC;
-                    if( i_underline ) p_style->font_style.i_style_flags |= STYLE_UNDERLINE;
-                    if( i_strikeout ) p_style->font_style.i_style_flags |= STYLE_STRIKEOUT;
-                    if( i_border == 1 ) p_style->font_style.i_style_flags |= (STYLE_ITALIC | STYLE_OUTLINE);
-                    else if( i_border == 3 )
-                    {
-                        p_style->font_style.i_style_flags |= STYLE_BACKGROUND;
-                        p_style->font_style.i_background_color = p_style->font_style.i_shadow_color;
-                        p_style->font_style.i_background_alpha = p_style->font_style.i_shadow_alpha;
-                    }
-                    p_style->font_style.i_shadow_width  = ( i_border == 1 ) ? i_shadow : 0;
-                    p_style->font_style.i_outline_width = ( i_border == 1 ) ? i_outline : 0;
-                    p_style->font_style.i_spacing = i_spacing;
-                    //p_style->font_style.f_angle = f_angle;
-
-                    p_style->i_align = 0;
-                    if( i_align == 0x1 || i_align == 0x4 || i_align == 0x7 ) p_style->i_align |= SUBPICTURE_ALIGN_LEFT;
-                    if( i_align == 0x3 || i_align == 0x6 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_RIGHT;
-                    if( i_align == 0x7 || i_align == 0x8 || i_align == 0x9 ) p_style->i_align |= SUBPICTURE_ALIGN_TOP;
-                    if( i_align == 0x1 || i_align == 0x2 || i_align == 0x3 ) p_style->i_align |= SUBPICTURE_ALIGN_BOTTOM;
-                    p_style->i_margin_h = ( p_style->i_align & SUBPICTURE_ALIGN_RIGHT ) ? i_margin_r : i_margin_l;
-                    p_style->i_margin_v = i_margin_v;
-                    p_style->i_margin_percent_h = 0;
-                    p_style->i_margin_percent_v = 0;
 
-                    p_style->font_style.i_karaoke_background_color = 0xffffff;
-                    p_style->font_style.i_karaoke_background_alpha = 0xff;
-
-                    /*TODO: Ignored: angle i_scale_x|y (fontscaling), i_encoding */
-                    TAB_APPEND( p_sys->i_ssa_styles, p_sys->pp_ssa_styles, p_style );
-                }
-                else msg_Dbg( p_dec, "SSA V4+ styleline parsing failed" );
-            }
+                free( psz_node );
+                break;
         }
-        psz_parser = GotoNextLine( psz_parser );
     }
-
-eof:
-    if( psz_header ) free( psz_header );
-    return;
+    if( p_style ) free( p_style );
 }
 
-/* Function now handles tags which has attribute values, and tries
- * to deal with &' commands too. It no longer modifies the string
- * in place, so that the original text can be reused
- */
-static char *StripTags( char *psz_subtitle )
-{
-    char *psz_text_start;
-    char *psz_text;
 
-    psz_text = psz_text_start = malloc( strlen( psz_subtitle ) + 1 );
-    if( !psz_text_start )
-        return NULL;
+
+subpicture_region_t *ParseUSFString( decoder_t *p_dec,
+                                     char *psz_subtitle,
+                                     subpicture_t *p_spu_in )
+{
+    decoder_sys_t        *p_sys = p_dec->p_sys;
+    subpicture_t         *p_spu = p_spu_in;
+    subpicture_region_t  *p_region_first = NULL;
+    subpicture_region_t  *p_region_upto  = p_region_first;
 
     while( *psz_subtitle )
     {
         if( *psz_subtitle == '<' )
         {
-            if( strncasecmp( psz_subtitle, "<br/>", 5 ) == 0 )
-                *psz_text++ = '\n';
+            char *psz_end = NULL;
 
-            psz_subtitle += strcspn( psz_subtitle, ">" );
-        }
-        else if( *psz_subtitle == '&' )
-        {
-            if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
-            {
-                *psz_text++ = '<';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
-            {
-                *psz_text++ = '>';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
-            {
-                *psz_text++ = '&';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else if( !strncasecmp( psz_subtitle, "&quot;", 6 ))
-            {
-                *psz_text++ = '\"';
-                psz_subtitle += strcspn( psz_subtitle, ";" );
-            }
-            else
+            if(( !strncasecmp( psz_subtitle, "<text ", 6 )) ||
+               ( !strncasecmp( psz_subtitle, "<text>", 6 )))
             {
-                /* Assume it is just a normal ampersand */
-                *psz_text++ = '&';
-            }
-        }
-        else
-        {
-            *psz_text++ = *psz_subtitle;
-        }
-
-        psz_subtitle++;
-    }
-    *psz_text = '\0';
-    psz_text_start = realloc( psz_text_start, strlen( psz_text_start ) + 1 );
-
-    return psz_text_start;
-}
-
-/* Try to respect any style tags present in the subtitle string. The main
- * problem here is a lack of adequate specs for the subtitle formats.
- * SSA/ASS and USF are both detail spec'ed -- but they are handled elsewhere.
- * SAMI has a detailed spec, but extensive rework is needed in the demux
- * code to prevent all this style information being excised, as it presently
- * does.
- * That leaves the others - none of which were (I guess) originally intended
- * to be carrying style information. Over time people have used them that way.
- * In the absence of specifications from which to work, the tags supported
- * have been restricted to the simple set permitted by the USF DTD, ie. :
- *  Basic: <br>, <i>, <b>, <u>
- *  Extended: <font>
- *    Attributes: face
- *                family
- *                size
- *                color
- *                outline-color
- *                shadow-color
- *                outline-level
- *                shadow-level
- *                back-color
- *                alpha
- * There is also the further restriction that the subtitle be well-formed
- * as an XML entity, ie. the HTML sentence:
- *        <b><i>Bold and Italics</b></i>
- * doesn't qualify because the tags aren't nested one inside the other.
- * <text> tags are automatically added to the output to ensure
- * well-formedness.
- * If the text doesn't qualify for any reason, a NULL string is
- * returned, and the rendering engine will fall back to the
- * plain text version of the subtitle.
- */
-static char *CreateHtmlSubtitle( char *psz_subtitle )
-{
-    char    psz_tagStack[ 100 ];
-    size_t  i_buf_size     = strlen( psz_subtitle ) + 100;
-    char   *psz_html_start = malloc( i_buf_size );
-
-    psz_tagStack[ 0 ] = '\0';
-
-    if( psz_html_start != NULL )
-    {
-        char *psz_html = psz_html_start;
-
-        strcpy( psz_html, "<text>" );
-        psz_html += 6;
+                psz_end = strcasestr( psz_subtitle, "</text>" );
 
-        while( *psz_subtitle )
-        {
-            if( *psz_subtitle == '\n' )
-            {
-                strcpy( psz_html, "<br/>" );
-                psz_html += 5;
-                psz_subtitle++;
-            }
-            else if( *psz_subtitle == '<' )
-            {
-                if( !strncasecmp( psz_subtitle, "<br/>", 5 ))
-                {
-                    strcpy( psz_html, "<br/>" );
-                    psz_html += 5;
-                    psz_subtitle += 5;
-                }
-                else if( !strncasecmp( psz_subtitle, "<b>", 3 ) )
-                {
-                    strcpy( psz_html, "<b>" );
-                    strcat( psz_tagStack, "b" );
-                    psz_html += 3;
-                    psz_subtitle += 3;
-                }
-                else if( !strncasecmp( psz_subtitle, "<i>", 3 ) )
-                {
-                    strcpy( psz_html, "<i>" );
-                    strcat( psz_tagStack, "i" );
-                    psz_html += 3;
-                    psz_subtitle += 3;
-                }
-                else if( !strncasecmp( psz_subtitle, "<u>", 3 ) )
-                {
-                    strcpy( psz_html, "<u>" );
-                    strcat( psz_tagStack, "u" );
-                    psz_html += 3;
-                    psz_subtitle += 3;
-                }
-                else if( !strncasecmp( psz_subtitle, "<font ", 6 ))
+                if( psz_end )
                 {
-                    const char *psz_attribs[] = { "face=\"", "family=\"", "size=\"",
-                            "color=\"", "outline-color=\"", "shadow-color=\"",
-                            "outline-level=\"", "shadow-level=\"", "back-color=\"",
-                            "alpha=\"", NULL };
+                    subpicture_region_t  *p_text_region;
+
+                    psz_end += strcspn( psz_end, ">" ) + 1;
 
-                    strcpy( psz_html, "<font " );
-                    strcat( psz_tagStack, "f" );
-                    psz_html += 6;
-                    psz_subtitle += 6;
+                    p_text_region = CreateTextRegion( p_dec,
+                                                      p_spu,
+                                                      psz_subtitle,
+                                                      psz_end - psz_subtitle,
+                                                      p_sys->i_align );
 
-                    while( *psz_subtitle != '>' )
+                    if( p_text_region )
                     {
-                        int  k;
+                        p_text_region->psz_text = CreatePlainText( p_text_region->psz_html );
 
-                        for( k=0; psz_attribs[ k ]; k++ )
+                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
                         {
-                            int i_len = strlen( psz_attribs[ k ] );
-
-                            if( !strncasecmp( psz_subtitle, psz_attribs[ k ], i_len ))
-                            {
-                                i_len += strcspn( psz_subtitle + i_len, "\"" ) + 1;
-
-                                strncpy( psz_html, psz_subtitle, i_len );
-                                psz_html += i_len;
-                                psz_subtitle += i_len;
-                                break;
-                            }
+                            free( p_text_region->psz_html );
+                            p_text_region->psz_html = NULL;
                         }
-                        if( psz_attribs[ k ] == NULL )
-                        {
-                            /* Jump over unrecognised tag */
-                            int i_len = strcspn( psz_subtitle, "\"" ) + 1;
+                    }
 
-                            i_len += strcspn( psz_subtitle + i_len, "\"" ) + 1;
-                            psz_subtitle += i_len;
-                        }
-                        while (*psz_subtitle == ' ')
-                            *psz_html++ = *psz_subtitle++;
+                    if( !p_region_first )
+                    {
+                        p_region_first = p_region_upto = p_text_region;
+                    }
+                    else if( p_text_region )
+                    {
+                        p_region_upto->p_next = p_text_region;
+                        p_region_upto = p_region_upto->p_next;
                     }
-                    *psz_html++ = *psz_subtitle++;
                 }
-                else if( !strncmp( psz_subtitle, "</", 2 ))
+            }
+            else if(( !strncasecmp( psz_subtitle, "<karaoke ", 9 )) ||
+                    ( !strncasecmp( psz_subtitle, "<karaoke>", 9 )))
+            {
+                psz_end = strcasestr( psz_subtitle, "</karaoke>" );
+
+                if( psz_end )
                 {
-                    vlc_bool_t  b_match     = VLC_FALSE;
-                    int         i_len       = strlen( psz_tagStack ) - 1;
-                    char       *psz_lastTag = NULL;
+                    subpicture_region_t  *p_text_region;
 
-                    if( i_len >= 0 )
-                    {
-                        psz_lastTag = psz_tagStack + i_len;
-                        i_len = 0;
+                    psz_end += strcspn( psz_end, ">" ) + 1;
+
+                    p_text_region = CreateTextRegion( p_dec,
+                                                      p_spu,
+                                                      psz_subtitle,
+                                                      psz_end - psz_subtitle,
+                                                      p_sys->i_align );
 
-                        switch( *psz_lastTag )
+                    if( p_text_region )
+                    {
+                        if( ! var_CreateGetBool( p_dec, "subsdec-formatted" ) )
                         {
-                            case 'b':
-                                b_match = !strncasecmp( psz_subtitle, "</b>", 4 );
-                                i_len   = 4;
-                                break;
-                            case 'i':
-                                b_match = !strncasecmp( psz_subtitle, "</i>", 4 );
-                                i_len   = 4;
-                                break;
-                            case 'u':
-                                b_match = !strncasecmp( psz_subtitle, "</u>", 4 );
-                                i_len   = 4;
-                                break;
-                            case 'f':
-                                b_match = !strncasecmp( psz_subtitle, "</font>", 7 );
-                                i_len   = 7;
-                                break;
+                            free( p_text_region->psz_html );
+                            p_text_region->psz_html = NULL;
                         }
                     }
-                    if( ! b_match )
+                    if( !p_region_first )
                     {
-                        /* Not well formed -- kill everything */
-                        free( psz_html_start );
-                        psz_html_start = NULL;
-                        break;
+                        p_region_first = p_region_upto = p_text_region;
+                    }
+                    else if( p_text_region )
+                    {
+                        p_region_upto->p_next = p_text_region;
+                        p_region_upto = p_region_upto->p_next;
                     }
-                    *psz_lastTag = '\0';
-                    strncpy( psz_html, psz_subtitle, i_len );
-                    psz_html += i_len;
-                    psz_subtitle += i_len;
-                }
-                else
-                {
-                    psz_subtitle += strcspn( psz_subtitle, ">" );
                 }
             }
-            else if( *psz_subtitle == '&' )
+            else if(( !strncasecmp( psz_subtitle, "<image ", 7 )) ||
+                    ( !strncasecmp( psz_subtitle, "<image>", 7 )))
             {
-                if( !strncasecmp( psz_subtitle, "&lt;", 4 ))
+                subpicture_region_t *p_image_region = NULL;
+
+                char *psz_end = strcasestr( psz_subtitle, "</image>" );
+                char *psz_content = strchr( psz_subtitle, '>' );
+                int   i_transparent = -1;
+
+                /* If a colorkey parameter is specified, then we have to map
+                 * that index in the picture through as transparent (it is
+                 * required by the USF spec but is also recommended that if the
+                 * creator really wants a transparent colour that they use a
+                 * type like PNG that properly supports it; this goes doubly
+                 * for VLC because the pictures are stored internally in YUV
+                 * and the resulting colour-matching may not produce the
+                 * desired results.)
+                 */
+                char *psz_tmp = GrabAttributeValue( "colorkey", psz_subtitle );
+                if( psz_tmp )
                 {
-                    strcpy( psz_html, "&lt;" );
-                    psz_html += 4;
-                    psz_subtitle += 4;
+                    if( *psz_tmp == '#' )
+                        i_transparent = strtol( psz_tmp + 1, NULL, 16 ) & 0x00ffffff;
+                    free( psz_tmp );
                 }
-                else if( !strncasecmp( psz_subtitle, "&gt;", 4 ))
+                if( psz_content && ( psz_content < psz_end ) )
                 {
-                    strcpy( psz_html, "&gt;" );
-                    psz_html += 4;
-                    psz_subtitle += 4;
+                    char *psz_filename = strndup( &psz_content[1], psz_end - &psz_content[1] );
+                    if( psz_filename )
+                    {
+                        p_image_region = LoadEmbeddedImage( p_dec, p_spu,
+                                            psz_filename, i_transparent );
+                        free( psz_filename );
+                    }
                 }
-                else if( !strncasecmp( psz_subtitle, "&amp;", 5 ))
+
+                if( psz_end ) psz_end += strcspn( psz_end, ">" ) + 1;
+
+                if( p_image_region )
                 {
-                    strcpy( psz_html, "&amp;" );
-                    psz_html += 5;
-                    psz_subtitle += 5;
+                    SetupPositions( p_image_region, psz_subtitle );
+
+                    p_image_region->p_next   = NULL;
+                    p_image_region->psz_text = NULL;
+                    p_image_region->psz_html = NULL;
+
                 }
-                else
+                if( !p_region_first )
                 {
-                    strcpy( psz_html, "&amp;" );
-                    psz_html += 5;
-                    psz_subtitle++;
+                    p_region_first = p_region_upto = p_image_region;
                 }
-            }
-            else
-            {
-                *psz_html = *psz_subtitle;
-                if( psz_html > psz_html_start )
+                else if( p_image_region )
                 {
-                    /* Check for double whitespace */
-                    if((( *psz_html == ' ' ) ||
-                        ( *psz_html == '\t' )) &&
-                       (( *(psz_html-1) == ' ' ) ||
-                        ( *(psz_html-1) == '\t' )))
-                    {
-                        strcpy( psz_html, NO_BREAKING_SPACE );
-                        psz_html += strlen( NO_BREAKING_SPACE ) - 1;
-                    }
+                    p_region_upto->p_next = p_image_region;
+                    p_region_upto = p_region_upto->p_next;
                 }
-                psz_html++;
-                psz_subtitle++;
             }
+            if( psz_end )
+                psz_subtitle = psz_end - 1;
 
-            if( ( size_t )( psz_html - psz_html_start ) > i_buf_size - 10 )
-            {
-                int i_len = psz_html - psz_html_start;
-
-                i_buf_size += 100;
-                psz_html_start = realloc( psz_html_start, i_buf_size );
-                psz_html = psz_html_start + i_len;
-                *psz_html = '\0';
-            }
+            psz_subtitle += strcspn( psz_subtitle, ">" );
         }
-        strcpy( psz_html, "</text>" );
-        psz_html += 7;
 
-        if( psz_tagStack[ 0 ] != '\0' )
-        {
-            /* Not well formed -- kill everything */
-            free( psz_html_start );
-            psz_html_start = NULL;
-        }
-        else if( psz_html_start )
-        {
-            /* Shrink the memory requirements */
-            psz_html_start = realloc( psz_html_start,  psz_html - psz_html_start + 1 );
-        }
+        psz_subtitle++;
     }
-    return psz_html_start;
-}
-
-/* The reverse of the above function - given a HTML subtitle, turn it
- * into a plain-text version, complete with sensible whitespace compaction
- */
-
-static char *CreatePlainText( char *psz_subtitle )
-{
-    char *psz_text = StripTags( psz_subtitle );
-    char *s;
-
-    if( !psz_text )
-        return NULL;
-
-    s = strpbrk( psz_text, "\t\r\n " );
-    while( s )
-    {
-        int   k;
-        char  spc = ' ';
-        int   i_whitespace = strspn( s, "\t\r\n " );
-
-        /* Favour '\n' over other whitespaces - if one of these
-         * occurs in the whitespace use a '\n' as our value,
-         * otherwise just use a ' '
-         */
-        for( k = 0; k < i_whitespace; k++ )
-            if( s[k] == '\n' ) spc = '\n';
-
-        if( i_whitespace > 1 )
-        {
-            memmove( &s[1],
-                     &s[i_whitespace],
-                     strlen( s ) - i_whitespace + 1 );
-        }
-        *s++ = spc;
 
-        s = strpbrk( s, "\t\r\n " );
-    }
-    return psz_text;
+    return p_region_first;
 }
 
-/****************************************************************************
- * download and resize image located at psz_url
- ***************************************************************************/
-static subpicture_region_t *LoadEmbeddedImage( decoder_t *p_dec, subpicture_t *p_spu, const char *psz_filename, int i_transparent_color )
+/*****************************************************************************
+ * ParseUSFHeader: Retrieve global formatting information etc
+ *****************************************************************************/
+void ParseUSFHeader( decoder_t *p_dec )
 {
-    decoder_sys_t         *p_sys = p_dec->p_sys;
-    subpicture_region_t   *p_region;
-    video_format_t         fmt_out;
-    int                    k;
-    picture_t             *p_pic = NULL;
-
-    for( k = 0; k < p_sys->i_images; k++ )
-    {
-        if( p_sys->pp_images &&
-            !strcmp( p_sys->pp_images[k]->psz_filename, psz_filename ) )
-        {
-            p_pic = p_sys->pp_images[k]->p_pic;
-            break;
-        }
-    }
-
-    if( !p_pic )
-    {
-        msg_Err( p_dec, "Unable to read image %s", psz_filename );
-        return NULL;
-    }
-
-    /* Display the feed's image */
-    memset( &fmt_out, 0, sizeof( video_format_t));
-
-    fmt_out.i_chroma = VLC_FOURCC('Y','U','V','A');
-    fmt_out.i_aspect = VOUT_ASPECT_FACTOR;
-    fmt_out.i_sar_num = fmt_out.i_sar_den = 1;
-    fmt_out.i_width =
-        fmt_out.i_visible_width = p_pic->p[Y_PLANE].i_visible_pitch;
-    fmt_out.i_height =
-        fmt_out.i_visible_height = p_pic->p[Y_PLANE].i_visible_lines;
+    stream_t      *p_sub = NULL;
+    xml_t         *p_xml = NULL;
+    xml_reader_t  *p_xml_reader = NULL;
 
-    p_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt_out );
-    if( !p_region )
-    {
-        msg_Err( p_dec, "cannot allocate SPU region" );
-        return NULL;
-    }
-    vout_CopyPicture( p_dec, &p_region->picture, p_pic );
+    p_sub = stream_MemoryNew( VLC_OBJECT(p_dec),
+                              p_dec->fmt_in.p_extra,
+                              p_dec->fmt_in.i_extra,
+                              VLC_TRUE );
+    if( !p_sub )
+        return;
 
-    /* This isn't the best way to do this - if you really want transparency, then
-     * you're much better off using an image type that supports it like PNG. The
-     * spec requires this support though.
-     */
-    if( i_transparent_color > 0 )
+    p_xml = xml_Create( p_dec );
+    if( p_xml )
     {
-        uint8_t i_r = ( i_transparent_color >> 16 ) & 0xff;
-        uint8_t i_g = ( i_transparent_color >>  8 ) & 0xff;
-        uint8_t i_b = ( i_transparent_color       ) & 0xff;
-        uint8_t i_y = ( ( (  66 * i_r + 129 * i_g +  25 * i_b + 128 ) >> 8 ) + 16 );
-        uint8_t i_u =   ( ( -38 * i_r -  74 * i_g + 112 * i_b + 128 ) >> 8 ) + 128 ;
-        uint8_t i_v =   ( ( 112 * i_r -  94 * i_g -  18 * i_b + 128 ) >> 8 ) + 128 ;
-
-        if( ( p_region->picture.Y_PITCH == p_region->picture.U_PITCH ) &&
-            ( p_region->picture.Y_PITCH == p_region->picture.V_PITCH ) &&
-            ( p_region->picture.Y_PITCH == p_region->picture.A_PITCH ) )
+        p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
+        if( p_xml_reader )
         {
-            int i_lines = p_region->picture.p[ Y_PLANE ].i_lines;
-            if( i_lines > p_region->picture.p[ U_PLANE ].i_lines )
-                i_lines = p_region->picture.p[ U_PLANE ].i_lines;
-            if( i_lines > p_region->picture.p[ V_PLANE ].i_lines )
-                i_lines = p_region->picture.p[ V_PLANE ].i_lines;
-            if( i_lines > p_region->picture.p[ A_PLANE ].i_lines )
-                i_lines = p_region->picture.p[ A_PLANE ].i_lines;
+            /* Look for Root Node */
+            if( xml_ReaderRead( p_xml_reader ) == 1 )
+            {
+                char *psz_node = xml_ReaderName( p_xml_reader );
 
-            int   i;
+                if( !strcasecmp( "usfsubtitles", psz_node ) )
+                    ParseUSFHeaderTags( p_dec, p_xml_reader );
 
-            for( i = 0; i < p_region->picture.A_PITCH * i_lines; i++ )
-            {
-                if(( p_region->picture.Y_PIXELS[ i ] == i_y ) &&
-                   ( p_region->picture.U_PIXELS[ i ] == i_u ) &&
-                   ( p_region->picture.V_PIXELS[ i ] == i_v ) )
-                {
-                    p_region->picture.A_PIXELS[ i ] = 1;
-                }
+                free( psz_node );
             }
+
+            xml_ReaderDelete( p_xml, p_xml_reader );
         }
+        xml_Delete( p_xml );
     }
-    return p_region;
+    stream_Delete( p_sub );
 }
+
+