a35034961b05c9954c105d5b596e6cfc956360ac
[vlc.git] / modules / stream_out / transcode.c
1 /*****************************************************************************
2  * transcode.c: transcoding stream output module
3  *****************************************************************************
4  * Copyright (C) 2003-2008 the VideoLAN team
5  * $Id$
6  *
7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8  *          Gildas Bazin <gbazin@videolan.org>
9  *          Jean-Paul Saman <jpsaman #_at_# m2x dot nl>
10  *          Antoine Cellerier <dionoea at videolan dot org>
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2 of the License, or
15  * (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
25  *****************************************************************************/
26
27 /*****************************************************************************
28  * Preamble
29  *****************************************************************************/
30 #ifdef HAVE_CONFIG_H
31 # include "config.h"
32 #endif
33
34 #include <vlc_common.h>
35 #include <vlc_plugin.h>
36 #include <vlc_input.h>
37 #include <vlc_sout.h>
38 #include <vlc_aout.h>
39 #include <vlc_vout.h>
40 #include <vlc_codec.h>
41 #include <vlc_block.h>
42 #include <vlc_filter.h>
43 #include <vlc_osd.h>
44
45 #include <math.h>
46
47 #define MASTER_SYNC_MAX_DRIFT 100000
48
49 #include <assert.h>
50
51 /*****************************************************************************
52  * Module descriptor
53  *****************************************************************************/
54 #define VENC_TEXT N_("Video encoder")
55 #define VENC_LONGTEXT N_( \
56     "This is the video encoder module that will be used (and its associated "\
57     "options).")
58 #define VCODEC_TEXT N_("Destination video codec")
59 #define VCODEC_LONGTEXT N_( \
60     "This is the video codec that will be used.")
61 #define VB_TEXT N_("Video bitrate")
62 #define VB_LONGTEXT N_( \
63     "Target bitrate of the transcoded video stream." )
64 #define SCALE_TEXT N_("Video scaling")
65 #define SCALE_LONGTEXT N_( \
66     "Scale factor to apply to the video while transcoding (eg: 0.25)")
67 #define FPS_TEXT N_("Video frame-rate")
68 #define FPS_LONGTEXT N_( \
69     "Target output frame rate for the video stream." )
70 #define DEINTERLACE_TEXT N_("Deinterlace video")
71 #define DEINTERLACE_LONGTEXT N_( \
72     "Deinterlace the video before encoding." )
73 #define DEINTERLACE_MODULE_TEXT N_("Deinterlace module")
74 #define DEINTERLACE_MODULE_LONGTEXT N_( \
75     "Specify the deinterlace module to use." )
76 #define WIDTH_TEXT N_("Video width")
77 #define WIDTH_LONGTEXT N_( \
78     "Output video width." )
79 #define HEIGHT_TEXT N_("Video height")
80 #define HEIGHT_LONGTEXT N_( \
81     "Output video height." )
82 #define MAXWIDTH_TEXT N_("Maximum video width")
83 #define MAXWIDTH_LONGTEXT N_( \
84     "Maximum output video width." )
85 #define MAXHEIGHT_TEXT N_("Maximum video height")
86 #define MAXHEIGHT_LONGTEXT N_( \
87     "Maximum output video height." )
88 #define VFILTER_TEXT N_("Video filter")
89 #define VFILTER_LONGTEXT N_( \
90     "Video filters will be applied to the video streams (after overlays " \
91     "are applied). You must enter a comma-separated list of filters." )
92
93 #define AENC_TEXT N_("Audio encoder")
94 #define AENC_LONGTEXT N_( \
95     "This is the audio encoder module that will be used (and its associated "\
96     "options).")
97 #define ACODEC_TEXT N_("Destination audio codec")
98 #define ACODEC_LONGTEXT N_( \
99     "This is the audio codec that will be used.")
100 #define AB_TEXT N_("Audio bitrate")
101 #define AB_LONGTEXT N_( \
102     "Target bitrate of the transcoded audio stream." )
103 #define ARATE_TEXT N_("Audio sample rate")
104 #define ARATE_LONGTEXT N_( \
105  "Sample rate of the transcoded audio stream (11250, 22500, 44100 or 48000).")
106 #define ACHANS_TEXT N_("Audio channels")
107 #define ACHANS_LONGTEXT N_( \
108     "Number of audio channels in the transcoded streams." )
109 #define AFILTER_TEXT N_("Audio filter")
110 #define AFILTER_LONGTEXT N_( \
111     "Audio filters will be applied to the audio streams (after conversion " \
112     "filters are applied). You must enter a comma-separated list of filters." )
113
114 #define SENC_TEXT N_("Subtitles encoder")
115 #define SENC_LONGTEXT N_( \
116     "This is the subtitles encoder module that will be used (and its " \
117     "associated options)." )
118 #define SCODEC_TEXT N_("Destination subtitles codec")
119 #define SCODEC_LONGTEXT N_( \
120     "This is the subtitles codec that will be used." )
121
122 #define SFILTER_TEXT N_("Overlays")
123 #define SFILTER_LONGTEXT N_( \
124     "This allows you to add overlays (also known as \"subpictures\" on the "\
125     "transcoded video stream. The subpictures produced by the filters will "\
126     "be overlayed directly onto the video. You must specify a comma-separated "\
127     "list of subpicture modules" )
128
129 #define OSD_TEXT N_("OSD menu")
130 #define OSD_LONGTEXT N_(\
131     "Stream the On Screen Display menu (using the osdmenu subpicture module)." )
132
133 #define THREADS_TEXT N_("Number of threads")
134 #define THREADS_LONGTEXT N_( \
135     "Number of threads used for the transcoding." )
136 #define HP_TEXT N_("High priority")
137 #define HP_LONGTEXT N_( \
138     "Runs the optional encoder thread at the OUTPUT priority instead of " \
139     "VIDEO." )
140
141 #define ASYNC_TEXT N_("Synchronise on audio track")
142 #define ASYNC_LONGTEXT N_( \
143     "This option will drop/duplicate video frames to synchronise the video " \
144     "track on the audio track." )
145
146 #define HURRYUP_TEXT N_( "Hurry up" )
147 #define HURRYUP_LONGTEXT N_( "The transcoder will drop frames if your CPU " \
148                 "can't keep up with the encoding rate." )
149
150 static const char *const ppsz_deinterlace_type[] =
151 {
152     "deinterlace", "ffmpeg-deinterlace"
153 };
154
155 static int  Open ( vlc_object_t * );
156 static void Close( vlc_object_t * );
157
158 #define SOUT_CFG_PREFIX "sout-transcode-"
159
160 vlc_module_begin();
161     set_shortname( N_("Transcode"));
162     set_description( N_("Transcode stream output") );
163     set_capability( "sout stream", 50 );
164     add_shortcut( "transcode" );
165     set_callbacks( Open, Close );
166     set_category( CAT_SOUT );
167     set_subcategory( SUBCAT_SOUT_STREAM );
168     set_section( N_("Video"), NULL );
169     add_string( SOUT_CFG_PREFIX "venc", NULL, NULL, VENC_TEXT,
170                 VENC_LONGTEXT, false );
171     add_string( SOUT_CFG_PREFIX "vcodec", NULL, NULL, VCODEC_TEXT,
172                 VCODEC_LONGTEXT, false );
173     add_integer( SOUT_CFG_PREFIX "vb", 800 * 1000, NULL, VB_TEXT,
174                  VB_LONGTEXT, false );
175     add_float( SOUT_CFG_PREFIX "scale", 1, NULL, SCALE_TEXT,
176                SCALE_LONGTEXT, false );
177     add_float( SOUT_CFG_PREFIX "fps", 0, NULL, FPS_TEXT,
178                FPS_LONGTEXT, false );
179     add_bool( SOUT_CFG_PREFIX "hurry-up", true, NULL, HURRYUP_TEXT,
180                HURRYUP_LONGTEXT, false );
181     add_bool( SOUT_CFG_PREFIX "deinterlace", 0, NULL, DEINTERLACE_TEXT,
182               DEINTERLACE_LONGTEXT, false );
183     add_string( SOUT_CFG_PREFIX "deinterlace-module", "deinterlace", NULL,
184                 DEINTERLACE_MODULE_TEXT, DEINTERLACE_MODULE_LONGTEXT,
185                 false );
186         change_string_list( ppsz_deinterlace_type, 0, 0 );
187     add_integer( SOUT_CFG_PREFIX "width", 0, NULL, WIDTH_TEXT,
188                  WIDTH_LONGTEXT, true );
189     add_integer( SOUT_CFG_PREFIX "height", 0, NULL, HEIGHT_TEXT,
190                  HEIGHT_LONGTEXT, true );
191     add_integer( SOUT_CFG_PREFIX "maxwidth", 0, NULL, MAXWIDTH_TEXT,
192                  MAXWIDTH_LONGTEXT, true );
193     add_integer( SOUT_CFG_PREFIX "maxheight", 0, NULL, MAXHEIGHT_TEXT,
194                  MAXHEIGHT_LONGTEXT, true );
195     add_module_list( SOUT_CFG_PREFIX "vfilter", "video filter2",
196                      NULL, NULL,
197                      VFILTER_TEXT, VFILTER_LONGTEXT, false );
198
199     set_section( N_("Audio"), NULL );
200     add_string( SOUT_CFG_PREFIX "aenc", NULL, NULL, AENC_TEXT,
201                 AENC_LONGTEXT, false );
202     add_string( SOUT_CFG_PREFIX "acodec", NULL, NULL, ACODEC_TEXT,
203                 ACODEC_LONGTEXT, false );
204     add_integer( SOUT_CFG_PREFIX "ab", 0, NULL, AB_TEXT,
205                  AB_LONGTEXT, false );
206     add_integer( SOUT_CFG_PREFIX "channels", 0, NULL, ACHANS_TEXT,
207                  ACHANS_LONGTEXT, false );
208     add_integer( SOUT_CFG_PREFIX "samplerate", 0, NULL, ARATE_TEXT,
209                  ARATE_LONGTEXT, true );
210     add_bool( SOUT_CFG_PREFIX "audio-sync", 0, NULL, ASYNC_TEXT,
211               ASYNC_LONGTEXT, false );
212     add_module_list( SOUT_CFG_PREFIX "afilter",  "audio filter2",
213                      NULL, NULL,
214                      AFILTER_TEXT, AFILTER_LONGTEXT, false );
215
216     set_section( N_("Overlays/Subtitles"), NULL );
217     add_string( SOUT_CFG_PREFIX "senc", NULL, NULL, SENC_TEXT,
218                 SENC_LONGTEXT, false );
219     add_string( SOUT_CFG_PREFIX "scodec", NULL, NULL, SCODEC_TEXT,
220                 SCODEC_LONGTEXT, false );
221     add_bool( SOUT_CFG_PREFIX "soverlay", 0, NULL, SCODEC_TEXT,
222                SCODEC_LONGTEXT, false );
223     add_module_list( SOUT_CFG_PREFIX "sfilter", "video filter",
224                      NULL, NULL,
225                      SFILTER_TEXT, SFILTER_LONGTEXT, false );
226
227     set_section( N_("On Screen Display"), NULL );
228     add_bool( SOUT_CFG_PREFIX "osd", 0, NULL, OSD_TEXT,
229               OSD_LONGTEXT, false );
230
231     set_section( N_("Miscellaneous"), NULL );
232     add_integer( SOUT_CFG_PREFIX "threads", 0, NULL, THREADS_TEXT,
233                  THREADS_LONGTEXT, true );
234     add_bool( SOUT_CFG_PREFIX "high-priority", 0, NULL, HP_TEXT, HP_LONGTEXT,
235               true );
236
237 vlc_module_end();
238
239 static const char *const ppsz_sout_options[] = {
240     "venc", "vcodec", "vb",
241     "scale", "fps", "width", "height", "vfilter", "deinterlace",
242     "deinterlace-module", "threads", "hurry-up", "aenc", "acodec", "ab",
243     "afilter", "samplerate", "channels", "senc", "scodec", "soverlay",
244     "sfilter", "osd", "audio-sync", "high-priority", "maxwidth", "maxheight",
245     NULL
246 };
247
248 /*****************************************************************************
249  * Exported prototypes
250  *****************************************************************************/
251 static sout_stream_id_t *Add ( sout_stream_t *, es_format_t * );
252 static int               Del ( sout_stream_t *, sout_stream_id_t * );
253 static int               Send( sout_stream_t *, sout_stream_id_t *, block_t* );
254
255 static int  transcode_audio_new    ( sout_stream_t *, sout_stream_id_t * );
256 static void transcode_audio_close  ( sout_stream_id_t * );
257 static int  transcode_audio_process( sout_stream_t *, sout_stream_id_t *,
258                                      block_t *, block_t ** );
259
260 static aout_buffer_t *audio_new_buffer( decoder_t *, int );
261 static void audio_del_buffer( decoder_t *, aout_buffer_t * );
262
263 static int  transcode_video_new    ( sout_stream_t *, sout_stream_id_t * );
264 static void transcode_video_close  ( sout_stream_t *, sout_stream_id_t * );
265 static void transcode_video_encoder_init( sout_stream_t *, sout_stream_id_t *);
266 static int  transcode_video_encoder_open( sout_stream_t *, sout_stream_id_t *);
267 static int  transcode_video_process( sout_stream_t *, sout_stream_id_t *,
268                                      block_t *, block_t ** );
269
270 static void video_del_buffer( vlc_object_t *, picture_t * );
271 static picture_t *video_new_buffer_decoder( decoder_t * );
272 static void video_del_buffer_decoder( decoder_t *, picture_t * );
273 static void video_link_picture_decoder( decoder_t *, picture_t * );
274 static void video_unlink_picture_decoder( decoder_t *, picture_t * );
275 static picture_t *video_new_buffer_filter( filter_t * );
276 static void video_del_buffer_filter( filter_t *, picture_t * );
277
278 static int  transcode_spu_new    ( sout_stream_t *, sout_stream_id_t * );
279 static void transcode_spu_close  ( sout_stream_id_t * );
280 static int  transcode_spu_process( sout_stream_t *, sout_stream_id_t *,
281                                    block_t *, block_t ** );
282
283 static int  transcode_osd_new    ( sout_stream_t *, sout_stream_id_t * );
284 static void transcode_osd_close  ( sout_stream_t *, sout_stream_id_t * );
285 static int  transcode_osd_process( sout_stream_t *, sout_stream_id_t *,
286                                    block_t *, block_t ** );
287
288 static void* EncoderThread( vlc_object_t * p_this );
289
290 static const int pi_channels_maps[6] =
291 {
292     0,
293     AOUT_CHAN_CENTER,   AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
294     AOUT_CHAN_CENTER | AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT,
295     AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARLEFT
296      | AOUT_CHAN_REARRIGHT,
297     AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
298      | AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT
299 };
300
301 #define PICTURE_RING_SIZE 64
302 #define SUBPICTURE_RING_SIZE 20
303
304 #define ENC_FRAMERATE (25 * 1000 + .5)
305 #define ENC_FRAMERATE_BASE 1000
306
307 struct sout_stream_sys_t
308 {
309     VLC_COMMON_MEMBERS
310
311     sout_stream_t   *p_out;
312     sout_stream_id_t *id_video;
313     block_t         *p_buffers;
314     vlc_mutex_t     lock_out;
315     vlc_cond_t      cond;
316     picture_t *     pp_pics[PICTURE_RING_SIZE];
317     int             i_first_pic, i_last_pic;
318
319     /* Audio */
320     vlc_fourcc_t    i_acodec;   /* codec audio (0 if not transcode) */
321     char            *psz_aenc;
322     config_chain_t  *p_audio_cfg;
323     uint32_t        i_sample_rate;
324     uint32_t        i_channels;
325     int             i_abitrate;
326
327     char            *psz_af2;
328
329     /* Video */
330     vlc_fourcc_t    i_vcodec;   /* codec video (0 if not transcode) */
331     char            *psz_venc;
332     config_chain_t  *p_video_cfg;
333     int             i_vbitrate;
334     double          f_scale;
335     double          f_fps;
336     unsigned int    i_width, i_maxwidth;
337     unsigned int    i_height, i_maxheight;
338     bool            b_deinterlace;
339     char            *psz_deinterlace;
340     config_chain_t  *p_deinterlace_cfg;
341     int             i_threads;
342     bool            b_high_priority;
343     bool            b_hurry_up;
344
345     char            *psz_vf2;
346
347     /* SPU */
348     vlc_fourcc_t    i_scodec;   /* codec spu (0 if not transcode) */
349     char            *psz_senc;
350     bool            b_soverlay;
351     config_chain_t  *p_spu_cfg;
352     spu_t           *p_spu;
353
354     /* OSD Menu */
355     vlc_fourcc_t    i_osdcodec; /* codec osd menu (0 if not transcode) */
356     char            *psz_osdenc;
357     config_chain_t  *p_osd_cfg;
358     bool            b_osd;   /* true when osd es is registered */
359
360     /* Sync */
361     bool            b_master_sync;
362     mtime_t         i_master_drift;
363 };
364
365 struct decoder_owner_sys_t
366 {
367     picture_t *pp_pics[PICTURE_RING_SIZE];
368     sout_stream_sys_t *p_sys;
369 };
370 struct filter_owner_sys_t
371 {
372     picture_t *pp_pics[PICTURE_RING_SIZE];
373     sout_stream_sys_t *p_sys;
374 };
375
376 /*****************************************************************************
377  * Open:
378  *****************************************************************************/
379 static int Open( vlc_object_t *p_this )
380 {
381     sout_stream_t     *p_stream = (sout_stream_t*)p_this;
382     sout_stream_sys_t *p_sys;
383     vlc_value_t       val;
384
385     p_sys = vlc_object_create( p_this, sizeof( sout_stream_sys_t ) );
386
387     p_sys->p_out = sout_StreamNew( p_stream->p_sout, p_stream->psz_next );
388     if( !p_sys->p_out )
389     {
390         msg_Err( p_stream, "cannot create chain" );
391         vlc_object_release( p_sys );
392         return VLC_EGENERIC;
393     }
394
395     p_sys->i_master_drift = 0;
396
397     config_ChainParse( p_stream, SOUT_CFG_PREFIX, ppsz_sout_options,
398                    p_stream->p_cfg );
399
400     /* Audio transcoding parameters */
401     var_Get( p_stream, SOUT_CFG_PREFIX "aenc", &val );
402     p_sys->psz_aenc = NULL;
403     p_sys->p_audio_cfg = NULL;
404     if( val.psz_string && *val.psz_string )
405     {
406         char *psz_next;
407         psz_next = config_ChainCreate( &p_sys->psz_aenc, &p_sys->p_audio_cfg,
408                                        val.psz_string );
409         free( psz_next );
410     }
411     free( val.psz_string );
412
413     var_Get( p_stream, SOUT_CFG_PREFIX "acodec", &val );
414     p_sys->i_acodec = 0;
415     if( val.psz_string && *val.psz_string )
416     {
417         char fcc[4] = "    ";
418         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
419         p_sys->i_acodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
420     }
421     free( val.psz_string );
422
423     var_Get( p_stream, SOUT_CFG_PREFIX "ab", &val );
424     p_sys->i_abitrate = val.i_int;
425     if( p_sys->i_abitrate < 4000 ) p_sys->i_abitrate *= 1000;
426
427     var_Get( p_stream, SOUT_CFG_PREFIX "samplerate", &val );
428     p_sys->i_sample_rate = val.i_int;
429
430     var_Get( p_stream, SOUT_CFG_PREFIX "channels", &val );
431     p_sys->i_channels = val.i_int;
432
433     if( p_sys->i_acodec )
434     {
435         if( p_sys->i_acodec == VLC_FOURCC('m','p','3',0) &&
436             p_sys->i_channels > 2 )
437         {
438             msg_Warn( p_stream, "%d channels invalid for mp3, forcing to 2",
439                       p_sys->i_channels );
440             p_sys->i_channels = 2;
441         }
442         msg_Dbg( p_stream, "codec audio=%4.4s %dHz %d channels %dKb/s",
443                  (char *)&p_sys->i_acodec, p_sys->i_sample_rate,
444                  p_sys->i_channels, p_sys->i_abitrate / 1000 );
445     }
446
447     var_Get( p_stream, SOUT_CFG_PREFIX "afilter", &val );
448     if( val.psz_string && *val.psz_string )
449         p_sys->psz_af2 = val.psz_string;
450     else
451     {
452         free( val.psz_string );
453         p_sys->psz_af2 = NULL;
454     }
455
456     /* Video transcoding parameters */
457     var_Get( p_stream, SOUT_CFG_PREFIX "venc", &val );
458     p_sys->psz_venc = NULL;
459     p_sys->p_video_cfg = NULL;
460     if( val.psz_string && *val.psz_string )
461     {
462         char *psz_next;
463         psz_next = config_ChainCreate( &p_sys->psz_venc, &p_sys->p_video_cfg,
464                                    val.psz_string );
465         free( psz_next );
466     }
467     free( val.psz_string );
468
469     var_Get( p_stream, SOUT_CFG_PREFIX "vcodec", &val );
470     p_sys->i_vcodec = 0;
471     if( val.psz_string && *val.psz_string )
472     {
473         char fcc[4] = "    ";
474         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
475         p_sys->i_vcodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
476     }
477     free( val.psz_string );
478
479     var_Get( p_stream, SOUT_CFG_PREFIX "vb", &val );
480     p_sys->i_vbitrate = val.i_int;
481     if( p_sys->i_vbitrate < 16000 ) p_sys->i_vbitrate *= 1000;
482
483     var_Get( p_stream, SOUT_CFG_PREFIX "scale", &val );
484     p_sys->f_scale = val.f_float;
485
486     var_Get( p_stream, SOUT_CFG_PREFIX "fps", &val );
487     p_sys->f_fps = val.f_float;
488
489     var_Get( p_stream, SOUT_CFG_PREFIX "hurry-up", &val );
490     p_sys->b_hurry_up = val.b_bool;
491
492     var_Get( p_stream, SOUT_CFG_PREFIX "width", &val );
493     p_sys->i_width = val.i_int;
494
495     var_Get( p_stream, SOUT_CFG_PREFIX "height", &val );
496     p_sys->i_height = val.i_int;
497
498     var_Get( p_stream, SOUT_CFG_PREFIX "maxwidth", &val );
499     p_sys->i_maxwidth = val.i_int;
500
501     var_Get( p_stream, SOUT_CFG_PREFIX "maxheight", &val );
502     p_sys->i_maxheight = val.i_int;
503
504     var_Get( p_stream, SOUT_CFG_PREFIX "vfilter", &val );
505     if( val.psz_string && *val.psz_string )
506         p_sys->psz_vf2 = val.psz_string;
507     else
508     {
509         free( val.psz_string );
510         p_sys->psz_vf2 = NULL;
511     }
512
513     var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace", &val );
514     p_sys->b_deinterlace = val.b_bool;
515
516     var_Get( p_stream, SOUT_CFG_PREFIX "deinterlace-module", &val );
517     p_sys->psz_deinterlace = NULL;
518     p_sys->p_deinterlace_cfg = NULL;
519     if( val.psz_string && *val.psz_string )
520     {
521         char *psz_next;
522         psz_next = config_ChainCreate( &p_sys->psz_deinterlace,
523                                    &p_sys->p_deinterlace_cfg,
524                                    val.psz_string );
525         free( psz_next );
526     }
527     free( val.psz_string );
528
529     var_Get( p_stream, SOUT_CFG_PREFIX "threads", &val );
530     p_sys->i_threads = val.i_int;
531     var_Get( p_stream, SOUT_CFG_PREFIX "high-priority", &val );
532     p_sys->b_high_priority = val.b_bool;
533
534     if( p_sys->i_vcodec )
535     {
536         msg_Dbg( p_stream, "codec video=%4.4s %dx%d scaling: %f %dkb/s",
537                  (char *)&p_sys->i_vcodec, p_sys->i_width, p_sys->i_height,
538                  p_sys->f_scale, p_sys->i_vbitrate / 1000 );
539     }
540
541     /* Subpictures transcoding parameters */
542     p_sys->p_spu = NULL;
543     p_sys->psz_senc = NULL;
544     p_sys->p_spu_cfg = NULL;
545     p_sys->i_scodec = 0;
546
547     var_Get( p_stream, SOUT_CFG_PREFIX "senc", &val );
548     if( val.psz_string && *val.psz_string )
549     {
550         char *psz_next;
551         psz_next = config_ChainCreate( &p_sys->psz_senc, &p_sys->p_spu_cfg,
552                                    val.psz_string );
553         free( psz_next );
554     }
555     free( val.psz_string );
556
557     var_Get( p_stream, SOUT_CFG_PREFIX "scodec", &val );
558     if( val.psz_string && *val.psz_string )
559     {
560         char fcc[4] = "    ";
561         memcpy( fcc, val.psz_string, __MIN( strlen( val.psz_string ), 4 ) );
562         p_sys->i_scodec = VLC_FOURCC( fcc[0], fcc[1], fcc[2], fcc[3] );
563     }
564     free( val.psz_string );
565
566     if( p_sys->i_scodec )
567     {
568         msg_Dbg( p_stream, "codec spu=%4.4s", (char *)&p_sys->i_scodec );
569     }
570
571     var_Get( p_stream, SOUT_CFG_PREFIX "soverlay", &val );
572     p_sys->b_soverlay = val.b_bool;
573
574     var_Get( p_stream, SOUT_CFG_PREFIX "sfilter", &val );
575     if( val.psz_string && *val.psz_string )
576     {
577         p_sys->p_spu = spu_Create( p_stream );
578         var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
579         var_Set( p_sys->p_spu, "sub-filter", val );
580         spu_Init( p_sys->p_spu );
581     }
582     free( val.psz_string );
583
584     /* OSD menu transcoding parameters */
585     p_sys->psz_osdenc = NULL;
586     p_sys->p_osd_cfg  = NULL;
587     p_sys->i_osdcodec = 0;
588     p_sys->b_osd   = false;
589
590     var_Get( p_stream, SOUT_CFG_PREFIX "osd", &val );
591     if( val.b_bool )
592     {
593         vlc_value_t osd_val;
594         char *psz_next;
595
596         psz_next = config_ChainCreate( &p_sys->psz_osdenc,
597                                    &p_sys->p_osd_cfg, strdup( "dvbsub") );
598         free( psz_next );
599
600         p_sys->i_osdcodec = VLC_FOURCC('Y','U','V','P' );
601
602         msg_Dbg( p_stream, "codec osd=%4.4s", (char *)&p_sys->i_osdcodec );
603
604         if( !p_sys->p_spu )
605         {
606             osd_val.psz_string = strdup("osdmenu");
607             p_sys->p_spu = spu_Create( p_stream );
608             var_Create( p_sys->p_spu, "sub-filter", VLC_VAR_STRING );
609             var_Set( p_sys->p_spu, "sub-filter", osd_val );
610             spu_Init( p_sys->p_spu );
611             free( osd_val.psz_string );
612         }
613         else
614         {
615             osd_val.psz_string = strdup("osdmenu");
616             var_Set( p_sys->p_spu, "sub-filter", osd_val );
617             free( osd_val.psz_string );
618         }
619     }
620
621     /* Audio settings */
622     var_Get( p_stream, SOUT_CFG_PREFIX "audio-sync", &val );
623     p_sys->b_master_sync = val.b_bool;
624     if( p_sys->f_fps > 0 ) p_sys->b_master_sync = true;
625
626     p_stream->pf_add    = Add;
627     p_stream->pf_del    = Del;
628     p_stream->pf_send   = Send;
629     p_stream->p_sys     = p_sys;
630
631     return VLC_SUCCESS;
632 }
633
634 /*****************************************************************************
635  * Close:
636  *****************************************************************************/
637 static void Close( vlc_object_t * p_this )
638 {
639     sout_stream_t       *p_stream = (sout_stream_t*)p_this;
640     sout_stream_sys_t   *p_sys = p_stream->p_sys;
641
642     sout_StreamDelete( p_sys->p_out );
643
644     free( p_sys->psz_af2 );
645
646     while( p_sys->p_audio_cfg != NULL )
647     {
648         config_chain_t *p_next = p_sys->p_audio_cfg->p_next;
649
650         free( p_sys->p_audio_cfg->psz_name );
651         free( p_sys->p_audio_cfg->psz_value );
652         free( p_sys->p_audio_cfg );
653
654         p_sys->p_audio_cfg = p_next;
655     }
656     free( p_sys->psz_aenc );
657
658     free( p_sys->psz_vf2 );
659
660     while( p_sys->p_video_cfg != NULL )
661     {
662         config_chain_t *p_next = p_sys->p_video_cfg->p_next;
663
664         free( p_sys->p_video_cfg->psz_name );
665         free( p_sys->p_video_cfg->psz_value );
666         free( p_sys->p_video_cfg );
667
668         p_sys->p_video_cfg = p_next;
669     }
670     free( p_sys->psz_venc );
671
672     while( p_sys->p_deinterlace_cfg != NULL )
673     {
674         config_chain_t *p_next = p_sys->p_deinterlace_cfg->p_next;
675
676         free( p_sys->p_deinterlace_cfg->psz_name );
677         free( p_sys->p_deinterlace_cfg->psz_value );
678         free( p_sys->p_deinterlace_cfg );
679
680         p_sys->p_deinterlace_cfg = p_next;
681     }
682     free( p_sys->psz_deinterlace );
683
684     while( p_sys->p_spu_cfg != NULL )
685     {
686         config_chain_t *p_next = p_sys->p_spu_cfg->p_next;
687
688         free( p_sys->p_spu_cfg->psz_name );
689         free( p_sys->p_spu_cfg->psz_value );
690         free( p_sys->p_spu_cfg );
691
692         p_sys->p_spu_cfg = p_next;
693     }
694     free( p_sys->psz_senc );
695
696     if( p_sys->p_spu ) spu_Destroy( p_sys->p_spu );
697
698     while( p_sys->p_osd_cfg != NULL )
699     {
700         config_chain_t *p_next = p_sys->p_osd_cfg->p_next;
701
702         free( p_sys->p_osd_cfg->psz_name );
703         free( p_sys->p_osd_cfg->psz_value );
704         free( p_sys->p_osd_cfg );
705
706         p_sys->p_osd_cfg = p_next;
707     }
708     free( p_sys->psz_osdenc );
709
710     vlc_object_release( p_sys );
711 }
712
713 struct sout_stream_id_t
714 {
715     vlc_fourcc_t  b_transcode;
716
717     /* id of the out stream */
718     void *id;
719
720     /* Decoder */
721     decoder_t       *p_decoder;
722
723     /* Filters */
724     filter_chain_t  *p_f_chain;
725     /* User specified filters */
726     filter_chain_t  *p_uf_chain;
727
728     /* Encoder */
729     encoder_t       *p_encoder;
730
731     /* Sync */
732     date_t          interpolated_pts;
733 };
734
735 static sout_stream_id_t *Add( sout_stream_t *p_stream, es_format_t *p_fmt )
736 {
737     sout_stream_sys_t *p_sys = p_stream->p_sys;
738     sout_stream_id_t *id;
739
740     id = malloc( sizeof( sout_stream_id_t ) );
741     if( !id )
742         goto error;
743     memset( id, 0, sizeof(sout_stream_id_t) );
744
745     id->id = NULL;
746     id->p_decoder = NULL;
747     id->p_encoder = NULL;
748
749     /* Create decoder object */
750     id->p_decoder = vlc_object_create( p_stream, VLC_OBJECT_DECODER );
751     if( !id->p_decoder )
752         goto error;
753     vlc_object_attach( id->p_decoder, p_stream );
754     id->p_decoder->p_module = NULL;
755     id->p_decoder->fmt_in = *p_fmt;
756     id->p_decoder->b_pace_control = true;
757
758     /* Create encoder object */
759     id->p_encoder = vlc_object_create( p_stream, VLC_OBJECT_ENCODER );
760     if( !id->p_encoder )
761         goto error;
762     vlc_object_attach( id->p_encoder, p_stream );
763     id->p_encoder->p_module = NULL;
764
765     /* Create destination format */
766     es_format_Init( &id->p_encoder->fmt_out, p_fmt->i_cat, 0 );
767     id->p_encoder->fmt_out.i_id    = p_fmt->i_id;
768     id->p_encoder->fmt_out.i_group = p_fmt->i_group;
769     if( p_fmt->psz_language )
770         id->p_encoder->fmt_out.psz_language = strdup( p_fmt->psz_language );
771
772     if( p_fmt->i_cat == AUDIO_ES && (p_sys->i_acodec || p_sys->psz_aenc) )
773     {
774         msg_Dbg( p_stream,
775                  "creating audio transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
776                  (char*)&p_fmt->i_codec, (char*)&p_sys->i_acodec );
777
778         /* Complete destination format */
779         id->p_encoder->fmt_out.i_codec = p_sys->i_acodec;
780         id->p_encoder->fmt_out.audio.i_rate = p_sys->i_sample_rate > 0 ?
781             p_sys->i_sample_rate : p_fmt->audio.i_rate;
782         id->p_encoder->fmt_out.i_bitrate = p_sys->i_abitrate;
783         id->p_encoder->fmt_out.audio.i_bitspersample =
784             p_fmt->audio.i_bitspersample;
785         id->p_encoder->fmt_out.audio.i_channels = p_sys->i_channels > 0 ?
786             p_sys->i_channels : p_fmt->audio.i_channels;
787         /* Sanity check for audio channels */
788         id->p_encoder->fmt_out.audio.i_channels =
789             __MIN( id->p_encoder->fmt_out.audio.i_channels,
790                    id->p_decoder->fmt_in.audio.i_channels );
791         id->p_encoder->fmt_out.audio.i_original_channels =
792             id->p_decoder->fmt_in.audio.i_physical_channels;
793         if( id->p_decoder->fmt_in.audio.i_channels ==
794             id->p_encoder->fmt_out.audio.i_channels )
795         {
796             id->p_encoder->fmt_out.audio.i_physical_channels =
797                 id->p_decoder->fmt_in.audio.i_physical_channels;
798         }
799         else
800         {
801             id->p_encoder->fmt_out.audio.i_physical_channels =
802                 pi_channels_maps[id->p_encoder->fmt_out.audio.i_channels];
803         }
804
805         /* Build decoder -> filter -> encoder chain */
806         if( transcode_audio_new( p_stream, id ) )
807         {
808             msg_Err( p_stream, "cannot create audio chain" );
809             goto error;
810         }
811
812         /* Open output stream */
813         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
814         id->b_transcode = true;
815
816         if( !id->id )
817         {
818             transcode_audio_close( id );
819             goto error;
820         }
821
822         date_Init( &id->interpolated_pts, p_fmt->audio.i_rate, 1 );
823     }
824     else if( p_fmt->i_cat == VIDEO_ES &&
825              (p_sys->i_vcodec != 0 || p_sys->psz_venc) )
826     {
827         msg_Dbg( p_stream,
828                  "creating video transcoding from fcc=`%4.4s' to fcc=`%4.4s'",
829                  (char*)&p_fmt->i_codec, (char*)&p_sys->i_vcodec );
830
831         /* Complete destination format */
832         id->p_encoder->fmt_out.i_codec = p_sys->i_vcodec;
833         id->p_encoder->fmt_out.video.i_width  = p_sys->i_width & ~1;
834         id->p_encoder->fmt_out.video.i_height = p_sys->i_height & ~1;
835         id->p_encoder->fmt_out.i_bitrate = p_sys->i_vbitrate;
836
837         /* Build decoder -> filter -> encoder chain */
838         if( transcode_video_new( p_stream, id ) )
839         {
840             msg_Err( p_stream, "cannot create video chain" );
841             goto error;
842         }
843
844         /* Stream will be added later on because we don't know
845          * all the characteristics of the decoded stream yet */
846         id->b_transcode = true;
847
848         if( p_sys->f_fps > 0 )
849         {
850             id->p_encoder->fmt_out.video.i_frame_rate =
851                 (p_sys->f_fps * 1000) + 0.5;
852             id->p_encoder->fmt_out.video.i_frame_rate_base =
853                 ENC_FRAMERATE_BASE;
854         }
855     }
856     else if( ( p_fmt->i_cat == SPU_ES ) &&
857              ( p_sys->i_scodec || p_sys->psz_senc ) )
858     {
859         msg_Dbg( p_stream, "creating subtitles transcoding from fcc=`%4.4s' "
860                  "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
861                  (char*)&p_sys->i_scodec );
862
863         /* Complete destination format */
864         id->p_encoder->fmt_out.i_codec = p_sys->i_scodec;
865
866         /* build decoder -> filter -> encoder */
867         if( transcode_spu_new( p_stream, id ) )
868         {
869             msg_Err( p_stream, "cannot create subtitles chain" );
870             goto error;
871         }
872
873         /* open output stream */
874         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
875         id->b_transcode = true;
876
877         if( !id->id )
878         {
879             transcode_spu_close( id );
880             goto error;
881         }
882     }
883     else if( p_fmt->i_cat == SPU_ES && p_sys->b_soverlay )
884     {
885         msg_Dbg( p_stream, "subtitles (fcc=`%4.4s') overlaying",
886                  (char*)&p_fmt->i_codec );
887
888         id->b_transcode = true;
889
890         /* Build decoder -> filter -> overlaying chain */
891         if( transcode_spu_new( p_stream, id ) )
892         {
893             msg_Err( p_stream, "cannot create subtitles chain" );
894             goto error;
895         }
896     }
897     else if( !p_sys->b_osd && (p_sys->i_osdcodec != 0 || p_sys->psz_osdenc) )
898     {
899         msg_Dbg( p_stream, "creating osd transcoding from fcc=`%4.4s' "
900                  "to fcc=`%4.4s'", (char*)&p_fmt->i_codec,
901                  (char*)&p_sys->i_scodec );
902
903         id->b_transcode = true;
904
905         /* Create a fake OSD menu elementary stream */
906         if( transcode_osd_new( p_stream, id ) )
907         {
908             msg_Err( p_stream, "cannot create osd chain" );
909             goto error;
910         }
911         p_sys->b_osd = true;
912     }
913     else
914     {
915         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
916                  (char*)&p_fmt->i_codec );
917         id->id = p_sys->p_out->pf_add( p_sys->p_out, p_fmt );
918         id->b_transcode = false;
919
920         if( !id->id ) goto error;
921     }
922
923     return id;
924
925 error:
926     if( id )
927     {
928         if( id->p_decoder )
929         {
930             vlc_object_detach( id->p_decoder );
931             vlc_object_release( id->p_decoder );
932             id->p_decoder = NULL;
933         }
934
935         if( id->p_encoder )
936         {
937             vlc_object_detach( id->p_encoder );
938             es_format_Clean( &id->p_encoder->fmt_out );
939             vlc_object_release( id->p_encoder );
940             id->p_encoder = NULL;
941         }
942
943         free( id );
944     }
945     return NULL;
946 }
947
948 static int Del( sout_stream_t *p_stream, sout_stream_id_t *id )
949 {
950     sout_stream_sys_t *p_sys = p_stream->p_sys;
951
952     if( id->b_transcode )
953     {
954         switch( id->p_decoder->fmt_in.i_cat )
955         {
956         case AUDIO_ES:
957             transcode_audio_close( id );
958             break;
959         case VIDEO_ES:
960             transcode_video_close( p_stream, id );
961             break;
962         case SPU_ES:
963             if( p_sys->b_osd )
964                 transcode_osd_close( p_stream, id );
965             else
966                 transcode_spu_close( id );
967             break;
968         }
969     }
970
971     if( id->id ) p_sys->p_out->pf_del( p_sys->p_out, id->id );
972
973     if( id->p_decoder )
974     {
975         vlc_object_detach( id->p_decoder );
976         vlc_object_release( id->p_decoder );
977         id->p_decoder = NULL;
978     }
979
980     if( id->p_encoder )
981     {
982         vlc_object_detach( id->p_encoder );
983         es_format_Clean( &id->p_encoder->fmt_out );
984         vlc_object_release( id->p_encoder );
985         id->p_encoder = NULL;
986     }
987     free( id );
988
989     return VLC_SUCCESS;
990 }
991
992 static int Send( sout_stream_t *p_stream, sout_stream_id_t *id,
993                  block_t *p_buffer )
994 {
995     sout_stream_sys_t *p_sys = p_stream->p_sys;
996     block_t *p_out = NULL;
997
998     if( !id->b_transcode && id->id )
999     {
1000         return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_buffer );
1001     }
1002     else if( !id->b_transcode )
1003     {
1004         block_Release( p_buffer );
1005         return VLC_EGENERIC;
1006     }
1007
1008     switch( id->p_decoder->fmt_in.i_cat )
1009     {
1010     case AUDIO_ES:
1011         transcode_audio_process( p_stream, id, p_buffer, &p_out );
1012         break;
1013
1014     case VIDEO_ES:
1015         if( transcode_video_process( p_stream, id, p_buffer, &p_out )
1016             != VLC_SUCCESS )
1017         {
1018             return VLC_EGENERIC;
1019         }
1020         break;
1021
1022     case SPU_ES:
1023         /* Transcode OSD menu pictures. */
1024         if( p_sys->b_osd )
1025         {
1026             if( transcode_osd_process( p_stream, id, p_buffer, &p_out ) !=
1027                 VLC_SUCCESS )
1028             {
1029                 return VLC_EGENERIC;
1030             }
1031         }
1032         else if ( transcode_spu_process( p_stream, id, p_buffer, &p_out ) !=
1033             VLC_SUCCESS )
1034         {
1035             return VLC_EGENERIC;
1036         }
1037         break;
1038
1039     default:
1040         p_out = NULL;
1041         block_Release( p_buffer );
1042         break;
1043     }
1044
1045     if( p_out ) return p_sys->p_out->pf_send( p_sys->p_out, id->id, p_out );
1046     return VLC_SUCCESS;
1047 }
1048
1049 /****************************************************************************
1050  * decoder helper
1051  ****************************************************************************/
1052 static inline void video_timer_start( encoder_t * p_encoder )
1053 {
1054     stats_TimerStart( p_encoder, "encoding video frame",
1055                       STATS_TIMER_VIDEO_FRAME_ENCODING );
1056 }
1057
1058 static inline void video_timer_stop( encoder_t * p_encoder )
1059 {
1060     stats_TimerStop( p_encoder, STATS_TIMER_VIDEO_FRAME_ENCODING );
1061 }
1062
1063 static inline void video_timer_close( encoder_t * p_encoder )
1064 {
1065     stats_TimerDump(  p_encoder, STATS_TIMER_VIDEO_FRAME_ENCODING );
1066     stats_TimerClean( p_encoder, STATS_TIMER_VIDEO_FRAME_ENCODING );
1067 }
1068
1069 static inline void audio_timer_start( encoder_t * p_encoder )
1070 {
1071     stats_TimerStart( p_encoder, "encoding audio frame",
1072                       STATS_TIMER_AUDIO_FRAME_ENCODING );
1073 }
1074
1075 static inline void audio_timer_stop( encoder_t * p_encoder )
1076 {
1077     stats_TimerStop( p_encoder, STATS_TIMER_AUDIO_FRAME_ENCODING );
1078 }
1079
1080 static inline void audio_timer_close( encoder_t * p_encoder )
1081 {
1082     stats_TimerDump(  p_encoder, STATS_TIMER_AUDIO_FRAME_ENCODING );
1083     stats_TimerClean( p_encoder, STATS_TIMER_AUDIO_FRAME_ENCODING );
1084 }
1085
1086 /****************************************************************************
1087  * decoder reencoder part
1088  ****************************************************************************/
1089
1090 static block_t *transcode_audio_alloc( filter_t *p_filter, int size )
1091 {
1092     VLC_UNUSED( p_filter );
1093     return block_Alloc( size );
1094 }
1095
1096 static int transcode_audio_filter_allocation_init( filter_t *p_filter,
1097                                                    void *data )
1098 {
1099     VLC_UNUSED(data);
1100     p_filter->pf_audio_buffer_new = transcode_audio_alloc;
1101     return VLC_SUCCESS;
1102 }
1103
1104 static int transcode_audio_new( sout_stream_t *p_stream,
1105                                 sout_stream_id_t *id )
1106 {
1107     sout_stream_sys_t *p_sys = p_stream->p_sys;
1108     es_format_t fmt_last;
1109     int i;
1110
1111     /*
1112      * Open decoder
1113      */
1114
1115     /* Initialization of decoder structures */
1116     id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1117     id->p_decoder->fmt_out.i_extra = 0;
1118     id->p_decoder->fmt_out.p_extra = 0;
1119     id->p_decoder->pf_decode_audio = NULL;
1120     id->p_decoder->pf_aout_buffer_new = audio_new_buffer;
1121     id->p_decoder->pf_aout_buffer_del = audio_del_buffer;
1122     /* id->p_decoder->p_cfg = p_sys->p_audio_cfg; */
1123
1124     id->p_decoder->p_module =
1125         module_Need( id->p_decoder, "decoder", "$codec", 0 );
1126     if( !id->p_decoder->p_module )
1127     {
1128         msg_Err( p_stream, "cannot find audio decoder" );
1129         return VLC_EGENERIC;
1130     }
1131     id->p_decoder->fmt_out.audio.i_bitspersample =
1132         aout_BitsPerSample( id->p_decoder->fmt_out.i_codec );
1133     fmt_last = id->p_decoder->fmt_out;
1134     /* Fix AAC SBR changing number of channels and sampling rate */
1135     if( !(id->p_decoder->fmt_in.i_codec == VLC_FOURCC('m','p','4','a') &&
1136         fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate &&
1137         fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels) )
1138         fmt_last.audio.i_rate = id->p_decoder->fmt_in.audio.i_rate;
1139
1140     /*
1141      * Open encoder
1142      */
1143
1144     /* Initialization of encoder format structures */
1145     es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1146                     id->p_decoder->fmt_out.i_codec );
1147     id->p_encoder->fmt_in.audio.i_format = id->p_decoder->fmt_out.i_codec;
1148
1149     id->p_encoder->fmt_in.audio.i_rate = id->p_encoder->fmt_out.audio.i_rate;
1150     id->p_encoder->fmt_in.audio.i_physical_channels =
1151         id->p_encoder->fmt_out.audio.i_physical_channels;
1152     id->p_encoder->fmt_in.audio.i_original_channels =
1153         id->p_encoder->fmt_out.audio.i_original_channels;
1154     id->p_encoder->fmt_in.audio.i_channels =
1155         id->p_encoder->fmt_out.audio.i_channels;
1156     id->p_encoder->fmt_in.audio.i_bitspersample =
1157         aout_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1158
1159     id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
1160     id->p_encoder->p_module =
1161         module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, true );
1162     if( !id->p_encoder->p_module )
1163     {
1164         msg_Err( p_stream, "cannot find audio encoder (module:%s fourcc:%4.4s)",
1165                  p_sys->psz_aenc ? p_sys->psz_aenc : "any",
1166                  (char *)&p_sys->i_acodec );
1167         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1168         id->p_decoder->p_module = NULL;
1169         return VLC_EGENERIC;
1170     }
1171     id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
1172     id->p_encoder->fmt_in.audio.i_bitspersample =
1173         aout_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1174
1175     /* Init filter chain */
1176     id->p_f_chain = filter_chain_New( p_stream, "audio filter2", true,
1177                     transcode_audio_filter_allocation_init, NULL, NULL );
1178     filter_chain_Reset( id->p_f_chain, &fmt_last, &id->p_encoder->fmt_in );
1179
1180     /* Load conversion filters */
1181     if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels ||
1182         fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1183     {
1184         /* We'll have to go through fl32 first */
1185         fmt_last.i_codec = fmt_last.audio.i_format = VLC_FOURCC('f','l','3','2');
1186         fmt_last.audio.i_bitspersample = aout_BitsPerSample( fmt_last.i_codec );
1187         filter_chain_AppendFilter( id->p_f_chain, NULL, NULL, NULL, &fmt_last );
1188         fmt_last = *filter_chain_GetFmtOut( id->p_f_chain );
1189     }
1190
1191     for( i = 0; i < 4; i++ )
1192     {
1193         if( (fmt_last.audio.i_channels !=
1194             id->p_encoder->fmt_in.audio.i_channels) ||
1195             (fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate) ||
1196             (fmt_last.i_codec != id->p_encoder->fmt_in.i_codec) )
1197         {
1198             msg_Dbg( p_stream, "Looking for filter "
1199                      "(%4.4s->%4.4s, channels %d->%d, rate %d->%d)",
1200                  (char *)&fmt_last.i_codec,
1201                  (char *)&id->p_encoder->fmt_in.i_codec,
1202                  fmt_last.audio.i_channels,
1203                  id->p_encoder->fmt_in.audio.i_channels,
1204                  fmt_last.audio.i_rate,
1205                  id->p_encoder->fmt_in.audio.i_rate );
1206             filter_chain_AppendFilter( id->p_f_chain, NULL, NULL,
1207                                        &fmt_last, &id->p_encoder->fmt_in );
1208             fmt_last = *filter_chain_GetFmtOut( id->p_f_chain );
1209         }
1210         else break;
1211     }
1212
1213     /* Final checks to see if conversions were successful */
1214     if( fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1215     {
1216         msg_Err( p_stream, "no audio filter found "
1217                            "(%4.4s->%4.4s, channels %d->%d, rate %d->%d)",
1218                  (char *)&fmt_last.i_codec,
1219                  (char *)&id->p_encoder->fmt_in.i_codec,
1220                  fmt_last.audio.i_channels,
1221                  id->p_encoder->fmt_in.audio.i_channels,
1222                  fmt_last.audio.i_rate,
1223                  id->p_encoder->fmt_in.audio.i_rate );
1224         transcode_audio_close( id );
1225         return VLC_EGENERIC;
1226     }
1227
1228     /* Load user specified audio filters now */
1229     if( p_sys->psz_af2 )
1230     {
1231         id->p_uf_chain = filter_chain_New( p_stream, "audio filter2", false,
1232                        transcode_audio_filter_allocation_init, NULL, NULL );
1233         filter_chain_Reset( id->p_uf_chain, &fmt_last, &id->p_encoder->fmt_in );
1234         filter_chain_AppendFromString( id->p_uf_chain, p_sys->psz_af2 );
1235         fmt_last = *filter_chain_GetFmtOut( id->p_uf_chain );
1236     }
1237
1238     if( fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels )
1239     {
1240 #if 1
1241         module_Unneed( id->p_encoder, id->p_encoder->p_module );
1242         id->p_encoder->p_module = NULL;
1243
1244         /* This might work, but only if the encoder is restarted */
1245         id->p_encoder->fmt_in.audio.i_channels = fmt_last.audio.i_channels;
1246         id->p_encoder->fmt_out.audio.i_channels = fmt_last.audio.i_channels;
1247
1248         id->p_encoder->fmt_in.audio.i_physical_channels =
1249             id->p_encoder->fmt_in.audio.i_original_channels =
1250                 fmt_last.audio.i_physical_channels;
1251         id->p_encoder->fmt_out.audio.i_physical_channels =
1252             id->p_encoder->fmt_out.audio.i_original_channels =
1253                 fmt_last.audio.i_physical_channels;
1254
1255         msg_Dbg( p_stream, "number of audio channels for mixing changed, "
1256                  "trying to reopen the encoder for mixing %i to %i channels",
1257                  fmt_last.audio.i_channels,
1258                  id->p_encoder->fmt_in.audio.i_channels );
1259
1260         /* reload encoder */
1261         id->p_encoder->p_cfg = p_stream->p_sys->p_audio_cfg;
1262         id->p_encoder->p_module =
1263             module_Need( id->p_encoder, "encoder", p_sys->psz_aenc, true );
1264         if( !id->p_encoder->p_module ||
1265             fmt_last.audio.i_channels != id->p_encoder->fmt_in.audio.i_channels  ||
1266             fmt_last.i_codec != id->p_encoder->fmt_in.i_codec )
1267         {
1268             if( id->p_encoder->p_module )
1269             {
1270                 module_Unneed( id->p_encoder, id->p_encoder->p_module );
1271                 id->p_encoder->p_module = NULL;
1272             }
1273             msg_Err( p_stream, "cannot find audio encoder (module:%s fourcc:%4.4s)",
1274                      p_sys->psz_aenc ? p_sys->psz_aenc : "any",
1275                      (char *)&p_sys->i_acodec );
1276             transcode_audio_close( id );
1277             return VLC_EGENERIC;
1278         }
1279         id->p_encoder->fmt_in.audio.i_format = id->p_encoder->fmt_in.i_codec;
1280         id->p_encoder->fmt_in.audio.i_bitspersample =
1281             aout_BitsPerSample( id->p_encoder->fmt_in.i_codec );
1282 #else
1283         msg_Err( p_stream, "no audio filter found for mixing from"
1284                  " %i to %i channels", fmt_last.audio.i_channels,
1285                  id->p_encoder->fmt_in.audio.i_channels );
1286
1287         transcode_audio_close( id );
1288         return VLC_EGENERIC;
1289 #endif
1290     }
1291
1292     if( fmt_last.audio.i_rate != id->p_encoder->fmt_in.audio.i_rate )
1293     {
1294         msg_Err( p_stream, "no audio filter found for resampling from"
1295                  " %iHz to %iHz", fmt_last.audio.i_rate,
1296                  id->p_encoder->fmt_in.audio.i_rate );
1297 #if 0
1298         /* FIXME : this might work, but only if the encoder is restarted */
1299         id->p_encoder->fmt_in.audio.i_rate = fmt_last.audio.i_rate;
1300         id->p_encoder->fmt_out.audio.i_rate = fmt_last.audio.i_rate;
1301 #else
1302         transcode_audio_close( id );
1303         return VLC_EGENERIC;
1304 #endif
1305     }
1306
1307     /* FIXME: Hack for mp3 transcoding support */
1308     if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC( 'm','p','3',' ' ) )
1309         id->p_encoder->fmt_out.i_codec = VLC_FOURCC( 'm','p','g','a' );
1310
1311     return VLC_SUCCESS;
1312 }
1313
1314 static void transcode_audio_close( sout_stream_id_t *id )
1315 {
1316     audio_timer_close( id->p_encoder );
1317
1318     /* Close decoder */
1319     if( id->p_decoder->p_module )
1320         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1321     id->p_decoder->p_module = NULL;
1322
1323     /* Close encoder */
1324     if( id->p_encoder->p_module )
1325         module_Unneed( id->p_encoder, id->p_encoder->p_module );
1326     id->p_encoder->p_module = NULL;
1327
1328     /* Close filters */
1329     if( id->p_f_chain )
1330         filter_chain_Delete( id->p_f_chain );
1331     if( id->p_uf_chain )
1332         filter_chain_Delete( id->p_uf_chain );
1333 }
1334
1335 static int transcode_audio_process( sout_stream_t *p_stream,
1336                                     sout_stream_id_t *id,
1337                                     block_t *in, block_t **out )
1338 {
1339     sout_stream_sys_t *p_sys = p_stream->p_sys;
1340     aout_buffer_t *p_audio_buf;
1341     block_t *p_block, *p_audio_block;
1342     *out = NULL;
1343
1344     while( (p_audio_buf = id->p_decoder->pf_decode_audio( id->p_decoder,
1345                                                           &in )) )
1346     {
1347         sout_UpdateStatistic( p_stream->p_sout, SOUT_STATISTIC_DECODED_AUDIO, 1 );
1348         if( p_sys->b_master_sync )
1349         {
1350             mtime_t i_dts = date_Get( &id->interpolated_pts ) + 1;
1351             if ( p_audio_buf->start_date - i_dts > MASTER_SYNC_MAX_DRIFT
1352                   || p_audio_buf->start_date - i_dts < -MASTER_SYNC_MAX_DRIFT )
1353             {
1354                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1355                 date_Set( &id->interpolated_pts, p_audio_buf->start_date );
1356                 i_dts = p_audio_buf->start_date + 1;
1357             }
1358             p_sys->i_master_drift = p_audio_buf->start_date - i_dts;
1359             date_Increment( &id->interpolated_pts, p_audio_buf->i_nb_samples );
1360             p_audio_buf->start_date -= p_sys->i_master_drift;
1361             p_audio_buf->end_date -= p_sys->i_master_drift;
1362         }
1363
1364         p_audio_block = p_audio_buf->p_sys;
1365         p_audio_block->i_buffer = p_audio_buf->i_nb_bytes;
1366         p_audio_block->i_dts = p_audio_block->i_pts =
1367             p_audio_buf->start_date;
1368         p_audio_block->i_length = p_audio_buf->end_date -
1369             p_audio_buf->start_date;
1370         p_audio_block->i_samples = p_audio_buf->i_nb_samples;
1371
1372         /* Run filter chain */
1373         p_audio_block = filter_chain_AudioFilter( id->p_f_chain, p_audio_block );
1374         if( id->p_uf_chain )
1375             p_audio_block = filter_chain_AudioFilter( id->p_uf_chain, p_audio_block );
1376         assert( p_audio_block );
1377
1378         p_audio_buf->p_buffer = p_audio_block->p_buffer;
1379         p_audio_buf->i_nb_bytes = p_audio_block->i_buffer;
1380         p_audio_buf->i_nb_samples = p_audio_block->i_samples;
1381         p_audio_buf->start_date = p_audio_block->i_dts;
1382         p_audio_buf->end_date = p_audio_block->i_dts + p_audio_block->i_length;
1383
1384         audio_timer_start( id->p_encoder );
1385         p_block = id->p_encoder->pf_encode_audio( id->p_encoder, p_audio_buf );
1386         audio_timer_stop( id->p_encoder );
1387
1388         block_ChainAppend( out, p_block );
1389         block_Release( p_audio_block );
1390         free( p_audio_buf );
1391     }
1392
1393     return VLC_SUCCESS;
1394 }
1395
1396 static void audio_release_buffer( aout_buffer_t *p_buffer )
1397 {
1398     if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1399     free( p_buffer );
1400 }
1401
1402 static aout_buffer_t *audio_new_buffer( decoder_t *p_dec, int i_samples )
1403 {
1404     aout_buffer_t *p_buffer;
1405     block_t *p_block;
1406     int i_size;
1407
1408     if( p_dec->fmt_out.audio.i_bitspersample )
1409     {
1410         i_size = i_samples * p_dec->fmt_out.audio.i_bitspersample / 8 *
1411             p_dec->fmt_out.audio.i_channels;
1412     }
1413     else if( p_dec->fmt_out.audio.i_bytes_per_frame &&
1414              p_dec->fmt_out.audio.i_frame_length )
1415     {
1416         i_size = i_samples * p_dec->fmt_out.audio.i_bytes_per_frame /
1417             p_dec->fmt_out.audio.i_frame_length;
1418     }
1419     else
1420     {
1421         i_size = i_samples * 4 * p_dec->fmt_out.audio.i_channels;
1422     }
1423
1424     p_buffer = malloc( sizeof(aout_buffer_t) );
1425     if( !p_buffer ) return NULL;
1426     p_buffer->b_discontinuity = false;
1427     p_buffer->pf_release = audio_release_buffer;
1428     p_buffer->p_sys = p_block = block_New( p_dec, i_size );
1429
1430     p_buffer->p_buffer = p_block->p_buffer;
1431     p_buffer->i_size = p_buffer->i_nb_bytes = p_block->i_buffer;
1432     p_buffer->i_nb_samples = i_samples;
1433     p_block->i_samples = i_samples;
1434
1435     return p_buffer;
1436 }
1437
1438 static void audio_del_buffer( decoder_t *p_dec, aout_buffer_t *p_buffer )
1439 {
1440     VLC_UNUSED(p_dec);
1441     if( p_buffer && p_buffer->p_sys ) block_Release( p_buffer->p_sys );
1442     free( p_buffer );
1443 }
1444
1445 /*
1446  * video
1447  */
1448
1449 static int transcode_video_filter_allocation_init( filter_t *p_filter,
1450                                                    void *p_data )
1451 {
1452     sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_data;
1453     int i;
1454
1455     p_filter->pf_vout_buffer_new = video_new_buffer_filter;
1456     p_filter->pf_vout_buffer_del = video_del_buffer_filter;
1457
1458     p_filter->p_owner = malloc( sizeof(filter_owner_sys_t) );
1459     if( !p_filter->p_owner )
1460         return VLC_EGENERIC;
1461
1462     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1463         p_filter->p_owner->pp_pics[i] = 0;
1464     p_filter->p_owner->p_sys = p_sys;
1465
1466     return VLC_SUCCESS;
1467 }
1468
1469 static void transcode_video_filter_allocation_clear( filter_t *p_filter )
1470 {
1471     int j;
1472
1473     /* Clean-up pictures ring buffer */
1474     for( j = 0; j < PICTURE_RING_SIZE; j++ )
1475     {
1476         if( p_filter->p_owner->pp_pics[j] )
1477             video_del_buffer( VLC_OBJECT(p_filter),
1478                               p_filter->p_owner->pp_pics[j] );
1479     }
1480     free( p_filter->p_owner );
1481 }
1482
1483 static int transcode_video_new( sout_stream_t *p_stream, sout_stream_id_t *id )
1484 {
1485     sout_stream_sys_t *p_sys = p_stream->p_sys;
1486     int i;
1487
1488     /* Open decoder
1489      * Initialization of decoder structures
1490      */
1491     id->p_decoder->fmt_out = id->p_decoder->fmt_in;
1492     id->p_decoder->fmt_out.i_extra = 0;
1493     id->p_decoder->fmt_out.p_extra = 0;
1494     id->p_decoder->pf_decode_video = NULL;
1495     id->p_decoder->pf_get_cc = NULL;
1496     id->p_decoder->pf_get_cc = 0;
1497     id->p_decoder->pf_vout_buffer_new = video_new_buffer_decoder;
1498     id->p_decoder->pf_vout_buffer_del = video_del_buffer_decoder;
1499     id->p_decoder->pf_picture_link    = video_link_picture_decoder;
1500     id->p_decoder->pf_picture_unlink  = video_unlink_picture_decoder;
1501     id->p_decoder->p_owner = malloc( sizeof(decoder_owner_sys_t) );
1502     if( !id->p_decoder->p_owner )
1503         return VLC_EGENERIC;
1504
1505     for( i = 0; i < PICTURE_RING_SIZE; i++ )
1506         id->p_decoder->p_owner->pp_pics[i] = 0;
1507     id->p_decoder->p_owner->p_sys = p_sys;
1508     /* id->p_decoder->p_cfg = p_sys->p_video_cfg; */
1509
1510     id->p_decoder->p_module =
1511         module_Need( id->p_decoder, "decoder", "$codec", 0 );
1512
1513     if( !id->p_decoder->p_module )
1514     {
1515         msg_Err( p_stream, "cannot find video decoder" );
1516         free( id->p_decoder->p_owner );
1517         return VLC_EGENERIC;
1518     }
1519
1520     /*
1521      * Open encoder.
1522      * Because some info about the decoded input will only be available
1523      * once the first frame is decoded, we actually only test the availability
1524      * of the encoder here.
1525      */
1526
1527     /* Initialization of encoder format structures */
1528     es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
1529                     id->p_decoder->fmt_out.i_codec );
1530     id->p_encoder->fmt_in.video.i_chroma = id->p_decoder->fmt_out.i_codec;
1531
1532     /* The dimensions will be set properly later on.
1533      * Just put sensible values so we can test an encoder is available. */
1534     id->p_encoder->fmt_in.video.i_width =
1535         id->p_encoder->fmt_out.video.i_width ?:
1536         id->p_decoder->fmt_in.video.i_width ?: 16;
1537     id->p_encoder->fmt_in.video.i_height =
1538         id->p_encoder->fmt_out.video.i_height ?:
1539         id->p_decoder->fmt_in.video.i_height ?: 16;
1540     id->p_encoder->fmt_in.video.i_frame_rate = ENC_FRAMERATE;
1541     id->p_encoder->fmt_in.video.i_frame_rate_base = ENC_FRAMERATE_BASE;
1542
1543     id->p_encoder->i_threads = p_sys->i_threads;
1544     id->p_encoder->p_cfg = p_sys->p_video_cfg;
1545
1546     id->p_encoder->p_module =
1547         module_Need( id->p_encoder, "encoder", p_sys->psz_venc, true );
1548     if( !id->p_encoder->p_module )
1549     {
1550         msg_Err( p_stream, "cannot find video encoder (module:%s fourcc:%4.4s)",
1551                  p_sys->psz_venc ? p_sys->psz_venc : "any",
1552                  (char *)&p_sys->i_vcodec );
1553         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1554         id->p_decoder->p_module = 0;
1555         free( id->p_decoder->p_owner );
1556         return VLC_EGENERIC;
1557     }
1558
1559     /* Close the encoder.
1560      * We'll open it only when we have the first frame. */
1561     module_Unneed( id->p_encoder, id->p_encoder->p_module );
1562     if( id->p_encoder->fmt_out.p_extra )
1563     {
1564         free( id->p_encoder->fmt_out.p_extra );
1565         id->p_encoder->fmt_out.p_extra = NULL;
1566         id->p_encoder->fmt_out.i_extra = 0;
1567     }
1568     id->p_encoder->p_module = NULL;
1569
1570     if( p_sys->i_threads >= 1 )
1571     {
1572         int i_priority = p_sys->b_high_priority ? VLC_THREAD_PRIORITY_OUTPUT :
1573                            VLC_THREAD_PRIORITY_VIDEO;
1574         p_sys->id_video = id;
1575         vlc_mutex_init( &p_sys->lock_out );
1576         vlc_cond_init( &p_sys->cond );
1577         memset( p_sys->pp_pics, 0, sizeof(p_sys->pp_pics) );
1578         p_sys->i_first_pic = 0;
1579         p_sys->i_last_pic = 0;
1580         p_sys->p_buffers = NULL;
1581         p_sys->b_die = p_sys->b_error = 0;
1582         if( vlc_thread_create( p_sys, "encoder", EncoderThread, i_priority,
1583                                false ) )
1584         {
1585             msg_Err( p_stream, "cannot spawn encoder thread" );
1586             module_Unneed( id->p_decoder, id->p_decoder->p_module );
1587             id->p_decoder->p_module = 0;
1588             free( id->p_decoder->p_owner );
1589             return VLC_EGENERIC;
1590         }
1591     }
1592
1593     return VLC_SUCCESS;
1594 }
1595
1596 static void transcode_video_encoder_init( sout_stream_t *p_stream,
1597                                           sout_stream_id_t *id )
1598 {
1599     sout_stream_sys_t *p_sys = p_stream->p_sys;
1600
1601     /* Calculate scaling
1602      * width/height of source */
1603     int i_src_width = id->p_decoder->fmt_out.video.i_width;
1604     int i_src_height = id->p_decoder->fmt_out.video.i_height;
1605
1606     /* with/height scaling */
1607     float f_scale_width = 1;
1608     float f_scale_height = 1;
1609
1610     /* width/height of output stream */
1611     int i_dst_width;
1612     int i_dst_height;
1613
1614     /* aspect ratio */
1615     float f_aspect = (float)id->p_decoder->fmt_out.video.i_aspect /
1616                             VOUT_ASPECT_FACTOR;
1617
1618     msg_Dbg( p_stream, "decoder aspect is %i:%i",
1619                  id->p_decoder->fmt_out.video.i_aspect, VOUT_ASPECT_FACTOR );
1620
1621     /* Change f_aspect from source frame to source pixel */
1622     f_aspect = f_aspect * i_src_height / i_src_width;
1623     msg_Dbg( p_stream, "source pixel aspect is %f:1", f_aspect );
1624
1625     /* Calculate scaling factor for specified parameters */
1626     if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1627         id->p_encoder->fmt_out.video.i_height <= 0 && p_sys->f_scale )
1628     {
1629         /* Global scaling. Make sure width will remain a factor of 16 */
1630         float f_real_scale;
1631         int  i_new_height;
1632         int i_new_width = i_src_width * p_sys->f_scale;
1633
1634         if( i_new_width % 16 <= 7 && i_new_width >= 16 )
1635             i_new_width -= i_new_width % 16;
1636         else
1637             i_new_width += 16 - i_new_width % 16;
1638
1639         f_real_scale = (float)( i_new_width ) / (float) i_src_width;
1640
1641         i_new_height = __MAX( 16, i_src_height * (float)f_real_scale );
1642
1643         f_scale_width = f_real_scale;
1644         f_scale_height = (float) i_new_height / (float) i_src_height;
1645     }
1646     else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1647              id->p_encoder->fmt_out.video.i_height <= 0 )
1648     {
1649         /* Only width specified */
1650         f_scale_width = (float)id->p_encoder->fmt_out.video.i_width/i_src_width;
1651         f_scale_height = f_scale_width;
1652     }
1653     else if( id->p_encoder->fmt_out.video.i_width <= 0 &&
1654              id->p_encoder->fmt_out.video.i_height > 0 )
1655     {
1656          /* Only height specified */
1657          f_scale_height = (float)id->p_encoder->fmt_out.video.i_height/i_src_height;
1658          f_scale_width = f_scale_height;
1659      }
1660      else if( id->p_encoder->fmt_out.video.i_width > 0 &&
1661               id->p_encoder->fmt_out.video.i_height > 0 )
1662      {
1663          /* Width and height specified */
1664          f_scale_width = (float)id->p_encoder->fmt_out.video.i_width/i_src_width;
1665          f_scale_height = (float)id->p_encoder->fmt_out.video.i_height/i_src_height;
1666      }
1667
1668      /* check maxwidth and maxheight
1669       */
1670      if( p_sys->i_maxwidth && f_scale_width > (float)p_sys->i_maxwidth /
1671                                                      i_src_width )
1672      {
1673          f_scale_width = (float)p_sys->i_maxwidth / i_src_width;
1674      }
1675
1676      if( p_sys->i_maxheight && f_scale_height > (float)p_sys->i_maxheight /
1677                                                        i_src_height )
1678      {
1679          f_scale_height = (float)p_sys->i_maxheight / i_src_height;
1680      }
1681
1682
1683      /* Change aspect ratio from source pixel to scaled pixel */
1684      f_aspect = f_aspect * f_scale_height / f_scale_width;
1685      msg_Dbg( p_stream, "scaled pixel aspect is %f:1", f_aspect );
1686
1687      /* f_scale_width and f_scale_height are now final */
1688      /* Calculate width, height from scaling
1689       * Make sure its multiple of 2
1690       */
1691      i_dst_width =  2 * (int)(f_scale_width*i_src_width/2+0.5);
1692      i_dst_height = 2 * (int)(f_scale_height*i_src_height/2+0.5);
1693
1694      /* Change aspect ratio from scaled pixel to output frame */
1695      f_aspect = f_aspect * i_dst_width / i_dst_height;
1696
1697      /* Store calculated values */
1698      id->p_encoder->fmt_out.video.i_width =
1699      id->p_encoder->fmt_out.video.i_visible_width = i_dst_width;
1700      id->p_encoder->fmt_out.video.i_height =
1701      id->p_encoder->fmt_out.video.i_visible_height = i_dst_height;
1702
1703      id->p_encoder->fmt_in.video.i_width =
1704      id->p_encoder->fmt_in.video.i_visible_width = i_dst_width;
1705      id->p_encoder->fmt_in.video.i_height =
1706      id->p_encoder->fmt_in.video.i_visible_height = i_dst_height;
1707
1708      msg_Dbg( p_stream, "source %ix%i, destination %ix%i",
1709          i_src_width, i_src_height,
1710          i_dst_width, i_dst_height
1711      );
1712
1713     /* Handle frame rate conversion */
1714     if( !id->p_encoder->fmt_out.video.i_frame_rate ||
1715         !id->p_encoder->fmt_out.video.i_frame_rate_base )
1716     {
1717         if( id->p_decoder->fmt_out.video.i_frame_rate &&
1718             id->p_decoder->fmt_out.video.i_frame_rate_base )
1719         {
1720             id->p_encoder->fmt_out.video.i_frame_rate =
1721                 id->p_decoder->fmt_out.video.i_frame_rate;
1722             id->p_encoder->fmt_out.video.i_frame_rate_base =
1723                 id->p_decoder->fmt_out.video.i_frame_rate_base;
1724         }
1725         else
1726         {
1727             /* Pick a sensible default value */
1728             id->p_encoder->fmt_out.video.i_frame_rate = ENC_FRAMERATE;
1729             id->p_encoder->fmt_out.video.i_frame_rate_base = ENC_FRAMERATE_BASE;
1730         }
1731     }
1732
1733     id->p_encoder->fmt_in.video.i_frame_rate =
1734         id->p_encoder->fmt_out.video.i_frame_rate;
1735     id->p_encoder->fmt_in.video.i_frame_rate_base =
1736         id->p_encoder->fmt_out.video.i_frame_rate_base;
1737
1738     date_Init( &id->interpolated_pts,
1739                id->p_encoder->fmt_out.video.i_frame_rate,
1740                id->p_encoder->fmt_out.video.i_frame_rate_base );
1741
1742     /* Check whether a particular aspect ratio was requested */
1743     if( !id->p_encoder->fmt_out.video.i_aspect )
1744     {
1745         id->p_encoder->fmt_out.video.i_aspect =
1746                 (int)( f_aspect * VOUT_ASPECT_FACTOR + 0.5 );
1747     }
1748     id->p_encoder->fmt_in.video.i_aspect =
1749         id->p_encoder->fmt_out.video.i_aspect;
1750
1751     msg_Dbg( p_stream, "encoder aspect is %i:%i",
1752              id->p_encoder->fmt_out.video.i_aspect, VOUT_ASPECT_FACTOR );
1753
1754     id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1755 }
1756
1757 static int transcode_video_encoder_open( sout_stream_t *p_stream,
1758                                          sout_stream_id_t *id )
1759 {
1760     sout_stream_sys_t *p_sys = p_stream->p_sys;
1761
1762
1763     msg_Dbg( p_stream, "destination (after video filters) %ix%i",
1764              id->p_encoder->fmt_in.video.i_width,
1765              id->p_encoder->fmt_in.video.i_height );
1766
1767     id->p_encoder->p_module =
1768         module_Need( id->p_encoder, "encoder", p_sys->psz_venc, true );
1769     if( !id->p_encoder->p_module )
1770     {
1771         msg_Err( p_stream, "cannot find video encoder (module:%s fourcc:%4.4s)",
1772                  p_sys->psz_venc ? p_sys->psz_venc : "any",
1773                  (char *)&p_sys->i_vcodec );
1774         return VLC_EGENERIC;
1775     }
1776
1777     id->p_encoder->fmt_in.video.i_chroma = id->p_encoder->fmt_in.i_codec;
1778
1779     /* Hack for mp2v/mp1v transcoding support */
1780     if( id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','1','v') ||
1781         id->p_encoder->fmt_out.i_codec == VLC_FOURCC('m','p','2','v') )
1782     {
1783         id->p_encoder->fmt_out.i_codec = VLC_FOURCC('m','p','g','v');
1784     }
1785
1786     id->id = p_stream->p_sys->p_out->pf_add( p_stream->p_sys->p_out,
1787                                              &id->p_encoder->fmt_out );
1788     if( !id->id )
1789     {
1790         msg_Err( p_stream, "cannot add this stream" );
1791         return VLC_EGENERIC;
1792     }
1793
1794     return VLC_SUCCESS;
1795 }
1796
1797 static void transcode_video_close( sout_stream_t *p_stream,
1798                                    sout_stream_id_t *id )
1799 {
1800     int i;
1801
1802     if( p_stream->p_sys->i_threads >= 1 )
1803     {
1804         vlc_mutex_lock( &p_stream->p_sys->lock_out );
1805         vlc_object_kill( p_stream->p_sys );
1806         vlc_cond_signal( &p_stream->p_sys->cond );
1807         vlc_mutex_unlock( &p_stream->p_sys->lock_out );
1808         vlc_thread_join( p_stream->p_sys );
1809         vlc_mutex_destroy( &p_stream->p_sys->lock_out );
1810         vlc_cond_destroy( &p_stream->p_sys->cond );
1811     }
1812
1813     video_timer_close( id->p_encoder );
1814
1815     /* Close decoder */
1816     if( id->p_decoder->p_module )
1817         module_Unneed( id->p_decoder, id->p_decoder->p_module );
1818
1819     if( id->p_decoder->p_owner )
1820     {
1821         /* Clean-up pictures ring buffer */
1822         for( i = 0; i < PICTURE_RING_SIZE; i++ )
1823         {
1824             if( id->p_decoder->p_owner->pp_pics[i] )
1825                 video_del_buffer( VLC_OBJECT(id->p_decoder),
1826                                   id->p_decoder->p_owner->pp_pics[i] );
1827         }
1828         free( id->p_decoder->p_owner );
1829     }
1830
1831     /* Close encoder */
1832     if( id->p_encoder->p_module )
1833         module_Unneed( id->p_encoder, id->p_encoder->p_module );
1834
1835     /* Close filters */
1836     if( id->p_f_chain )
1837         filter_chain_Delete( id->p_f_chain );
1838     if( id->p_uf_chain )
1839         filter_chain_Delete( id->p_uf_chain );
1840 }
1841
1842 static int transcode_video_process( sout_stream_t *p_stream,
1843                                     sout_stream_id_t *id,
1844                                     block_t *in, block_t **out )
1845 {
1846     sout_stream_sys_t *p_sys = p_stream->p_sys;
1847     int i_duplicate = 1;
1848     picture_t *p_pic, *p_pic2 = NULL;
1849     *out = NULL;
1850
1851     while( (p_pic = id->p_decoder->pf_decode_video( id->p_decoder, &in )) )
1852     {
1853         subpicture_t *p_subpic = NULL;
1854
1855         sout_UpdateStatistic( p_stream->p_sout, SOUT_STATISTIC_DECODED_VIDEO, 1 );
1856
1857         if( p_stream->p_sout->i_out_pace_nocontrol && p_sys->b_hurry_up )
1858         {
1859             mtime_t current_date = mdate();
1860             if( current_date + 50000 > p_pic->date )
1861             {
1862                 msg_Dbg( p_stream, "late picture skipped (%"PRId64")",
1863                          current_date + 50000 - p_pic->date );
1864                 p_pic->pf_release( p_pic );
1865                 continue;
1866             }
1867         }
1868
1869         if( p_sys->b_master_sync )
1870         {
1871             mtime_t i_video_drift;
1872             mtime_t i_master_drift = p_sys->i_master_drift;
1873             mtime_t i_pts;
1874
1875             i_pts = date_Get( &id->interpolated_pts ) + 1;
1876             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
1877                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
1878             {
1879                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
1880                 date_Set( &id->interpolated_pts, p_pic->date );
1881                 i_pts = p_pic->date + 1;
1882             }
1883             i_video_drift = p_pic->date - i_pts;
1884             i_duplicate = 1;
1885
1886             /* Set the pts of the frame being encoded */
1887             p_pic->date = i_pts;
1888
1889             if( i_video_drift < (i_master_drift - 50000) )
1890             {
1891 #if 0
1892                 msg_Dbg( p_stream, "dropping frame (%i)",
1893                          (int)(i_video_drift - i_master_drift) );
1894 #endif
1895                 p_pic->pf_release( p_pic );
1896                 continue;
1897             }
1898             else if( i_video_drift > (i_master_drift + 50000) )
1899             {
1900 #if 0
1901                 msg_Dbg( p_stream, "adding frame (%i)",
1902                          (int)(i_video_drift - i_master_drift) );
1903 #endif
1904                 i_duplicate = 2;
1905             }
1906         }
1907
1908         if( !id->p_encoder->p_module )
1909         {
1910             transcode_video_encoder_init( p_stream, id );
1911
1912             id->p_f_chain = filter_chain_New( p_stream, "video filter2",
1913                                               false,
1914                                transcode_video_filter_allocation_init,
1915                                transcode_video_filter_allocation_clear,
1916                                p_stream->p_sys );
1917
1918             /* Deinterlace */
1919             if( p_stream->p_sys->b_deinterlace )
1920             {
1921                 filter_chain_AppendFilter( id->p_f_chain,
1922                                            p_sys->psz_deinterlace,
1923                                            p_sys->p_deinterlace_cfg,
1924                                            &id->p_decoder->fmt_out,
1925                                            &id->p_decoder->fmt_out );
1926             }
1927
1928             /* Take care of the scaling and chroma conversions */
1929             if( ( id->p_decoder->fmt_out.video.i_chroma !=
1930                   id->p_encoder->fmt_in.video.i_chroma ) ||
1931                 ( id->p_decoder->fmt_out.video.i_width !=
1932                   id->p_encoder->fmt_in.video.i_width ) ||
1933                 ( id->p_decoder->fmt_out.video.i_height !=
1934                   id->p_encoder->fmt_in.video.i_height ) )
1935             {
1936                 filter_chain_AppendFilter( id->p_f_chain,
1937                                            NULL, NULL,
1938                                            &id->p_decoder->fmt_out,
1939                                            &id->p_encoder->fmt_in );
1940             }
1941
1942             if( p_sys->psz_vf2 )
1943             {
1944                 const es_format_t *p_fmt_out;
1945                 id->p_uf_chain = filter_chain_New( p_stream, "video filter2",
1946                                                    true,
1947                                    transcode_video_filter_allocation_init,
1948                                    transcode_video_filter_allocation_clear,
1949                                    p_stream->p_sys );
1950                 filter_chain_Reset( id->p_uf_chain, &id->p_encoder->fmt_in,
1951                                     &id->p_encoder->fmt_in );
1952                 filter_chain_AppendFromString( id->p_uf_chain, p_sys->psz_vf2 );
1953                 p_fmt_out = filter_chain_GetFmtOut( id->p_uf_chain );
1954                 es_format_Copy( &id->p_encoder->fmt_in, p_fmt_out );
1955                 id->p_encoder->fmt_out.video.i_width =
1956                     id->p_encoder->fmt_in.video.i_width;
1957                 id->p_encoder->fmt_out.video.i_height =
1958                     id->p_encoder->fmt_in.video.i_height;
1959                 id->p_encoder->fmt_out.video.i_aspect =
1960                     id->p_encoder->fmt_in.video.i_aspect;
1961             }
1962
1963             if( transcode_video_encoder_open( p_stream, id ) != VLC_SUCCESS )
1964             {
1965                 p_pic->pf_release( p_pic );
1966                 transcode_video_close( p_stream, id );
1967                 id->b_transcode = false;
1968                 return VLC_EGENERIC;
1969             }
1970         }
1971
1972         /* Run filter chain */
1973         if( id->p_f_chain )
1974             p_pic = filter_chain_VideoFilter( id->p_f_chain, p_pic );
1975
1976         /*
1977          * Encoding
1978          */
1979
1980         /* Check if we have a subpicture to overlay */
1981         if( p_sys->p_spu )
1982         {
1983             p_subpic = spu_SortSubpictures( p_sys->p_spu, p_pic->date,
1984                        false /* Fixme: check if stream is paused */, false );
1985             /* TODO: get another pic */
1986         }
1987
1988         /* Overlay subpicture */
1989         if( p_subpic )
1990         {
1991             video_format_t fmt;
1992
1993             if( p_pic->i_refcount && !filter_chain_GetLength( id->p_f_chain ) )
1994             {
1995                 /* We can't modify the picture, we need to duplicate it */
1996                 picture_t *p_tmp = video_new_buffer_decoder( id->p_decoder );
1997                 if( p_tmp )
1998                 {
1999                     picture_Copy( p_tmp, p_pic );
2000                     p_pic->pf_release( p_pic );
2001                     p_pic = p_tmp;
2002                 }
2003             }
2004
2005             if( filter_chain_GetLength( id->p_f_chain ) > 0 )
2006                 fmt = filter_chain_GetFmtOut( id->p_f_chain )->video;
2007             else
2008                 fmt = id->p_decoder->fmt_out.video;
2009
2010             /* FIXME (shouldn't have to be done here) */
2011             fmt.i_sar_num = fmt.i_aspect * fmt.i_height / fmt.i_width;
2012             fmt.i_sar_den = VOUT_ASPECT_FACTOR;
2013
2014             spu_RenderSubpictures( p_sys->p_spu, p_pic, &fmt,
2015                                    p_subpic, &id->p_decoder->fmt_out.video );
2016         }
2017
2018         /* Run user specified filter chain */
2019         if( id->p_uf_chain )
2020             p_pic = filter_chain_VideoFilter( id->p_uf_chain, p_pic );
2021
2022         if( p_sys->i_threads == 0 )
2023         {
2024             block_t *p_block;
2025
2026             video_timer_start( id->p_encoder );
2027             p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
2028             video_timer_stop( id->p_encoder );
2029
2030             block_ChainAppend( out, p_block );
2031         }
2032
2033         if( p_sys->b_master_sync )
2034         {
2035             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
2036             if ( p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT
2037                   || p_pic->date - i_pts < -MASTER_SYNC_MAX_DRIFT )
2038             {
2039                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
2040                 date_Set( &id->interpolated_pts, p_pic->date );
2041                 i_pts = p_pic->date + 1;
2042             }
2043             date_Increment( &id->interpolated_pts, 1 );
2044         }
2045
2046         if( p_sys->b_master_sync && i_duplicate > 1 )
2047         {
2048             mtime_t i_pts = date_Get( &id->interpolated_pts ) + 1;
2049             if( (p_pic->date - i_pts > MASTER_SYNC_MAX_DRIFT)
2050                  || ((p_pic->date - i_pts) < -MASTER_SYNC_MAX_DRIFT) )
2051             {
2052                 msg_Dbg( p_stream, "drift is too high, resetting master sync" );
2053                 date_Set( &id->interpolated_pts, p_pic->date );
2054                 i_pts = p_pic->date + 1;
2055             }
2056             date_Increment( &id->interpolated_pts, 1 );
2057
2058             if( p_sys->i_threads >= 1 )
2059             {
2060                 /* We can't modify the picture, we need to duplicate it */
2061                 p_pic2 = video_new_buffer_decoder( id->p_decoder );
2062                 if( p_pic2 != NULL )
2063                 {
2064                     picture_Copy( p_pic2, p_pic );
2065                     p_pic2->date = i_pts;
2066                 }
2067             }
2068             else
2069             {
2070                 block_t *p_block;
2071                 p_pic->date = i_pts;
2072                 video_timer_start( id->p_encoder );
2073                 p_block = id->p_encoder->pf_encode_video(id->p_encoder, p_pic);
2074                 video_timer_stop( id->p_encoder );
2075                 block_ChainAppend( out, p_block );
2076             }
2077         }
2078
2079         if( p_sys->i_threads == 0 )
2080         {
2081             p_pic->pf_release( p_pic );
2082         }
2083         else
2084         {
2085             vlc_mutex_lock( &p_sys->lock_out );
2086             p_sys->pp_pics[p_sys->i_last_pic++] = p_pic;
2087             p_sys->i_last_pic %= PICTURE_RING_SIZE;
2088             *out = p_sys->p_buffers;
2089             p_sys->p_buffers = NULL;
2090             if( p_pic2 != NULL )
2091             {
2092                 p_sys->pp_pics[p_sys->i_last_pic++] = p_pic2;
2093                 p_sys->i_last_pic %= PICTURE_RING_SIZE;
2094             }
2095             vlc_cond_signal( &p_sys->cond );
2096             vlc_mutex_unlock( &p_sys->lock_out );
2097         }
2098     }
2099
2100     return VLC_SUCCESS;
2101 }
2102
2103 static void* EncoderThread( vlc_object_t* p_this )
2104 {
2105     sout_stream_sys_t *p_sys = (sout_stream_sys_t*)p_this;
2106     sout_stream_id_t *id = p_sys->id_video;
2107     picture_t *p_pic;
2108     int canc = vlc_savecancel ();
2109
2110     while( vlc_object_alive (p_sys) && !p_sys->b_error )
2111     {
2112         block_t *p_block;
2113
2114         vlc_mutex_lock( &p_sys->lock_out );
2115         while( p_sys->i_last_pic == p_sys->i_first_pic )
2116         {
2117             vlc_cond_wait( &p_sys->cond, &p_sys->lock_out );
2118             if( !vlc_object_alive (p_sys) || p_sys->b_error ) break;
2119         }
2120         if( !vlc_object_alive (p_sys) || p_sys->b_error )
2121         {
2122             vlc_mutex_unlock( &p_sys->lock_out );
2123             break;
2124         }
2125
2126         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2127         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2128         vlc_mutex_unlock( &p_sys->lock_out );
2129
2130         video_timer_start( id->p_encoder );
2131         p_block = id->p_encoder->pf_encode_video( id->p_encoder, p_pic );
2132         video_timer_stop( id->p_encoder );
2133
2134         vlc_mutex_lock( &p_sys->lock_out );
2135         block_ChainAppend( &p_sys->p_buffers, p_block );
2136
2137         vlc_mutex_unlock( &p_sys->lock_out );
2138         p_pic->pf_release( p_pic );
2139     }
2140
2141     while( p_sys->i_last_pic != p_sys->i_first_pic )
2142     {
2143         p_pic = p_sys->pp_pics[p_sys->i_first_pic++];
2144         p_sys->i_first_pic %= PICTURE_RING_SIZE;
2145         p_pic->pf_release( p_pic );
2146     }
2147     block_ChainRelease( p_sys->p_buffers );
2148
2149     vlc_restorecancel (canc);
2150     return NULL;
2151 }
2152
2153 struct picture_sys_t
2154 {
2155     vlc_object_t *p_owner;
2156 };
2157
2158 static void video_release_buffer( picture_t *p_pic )
2159 {
2160     if( p_pic && !p_pic->i_refcount && p_pic->pf_release && p_pic->p_sys )
2161     {
2162         video_del_buffer_decoder( (decoder_t *)p_pic->p_sys->p_owner, p_pic );
2163     }
2164     else if( p_pic && p_pic->i_refcount > 0 ) p_pic->i_refcount--;
2165 }
2166
2167 static picture_t *video_new_buffer( vlc_object_t *p_this, picture_t **pp_ring,
2168                                     sout_stream_sys_t *p_sys )
2169 {
2170     decoder_t *p_dec = (decoder_t *)p_this;
2171     picture_t *p_pic;
2172     int i;
2173
2174     /* Find an empty space in the picture ring buffer */
2175     for( i = 0; i < PICTURE_RING_SIZE; i++ )
2176     {
2177         if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
2178         {
2179             pp_ring[i]->i_status = RESERVED_PICTURE;
2180             return pp_ring[i];
2181         }
2182     }
2183     for( i = 0; i < PICTURE_RING_SIZE; i++ )
2184     {
2185         if( pp_ring[i] == 0 ) break;
2186     }
2187
2188     if( i == PICTURE_RING_SIZE && p_sys->i_threads >= 1 )
2189     {
2190         int i_first_pic = p_sys->i_first_pic;
2191
2192         if( p_sys->i_first_pic != p_sys->i_last_pic )
2193         {
2194             /* Encoder still has stuff to encode, wait to clear-up the list */
2195             while( p_sys->i_first_pic == i_first_pic )
2196                 msleep( 100000 );
2197         }
2198
2199         /* Find an empty space in the picture ring buffer */
2200         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2201         {
2202             if( pp_ring[i] != 0 && pp_ring[i]->i_status == DESTROYED_PICTURE )
2203             {
2204                 pp_ring[i]->i_status = RESERVED_PICTURE;
2205                 return pp_ring[i];
2206             }
2207         }
2208         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2209         {
2210             if( pp_ring[i] == 0 ) break;
2211         }
2212     }
2213
2214     if( i == PICTURE_RING_SIZE )
2215     {
2216         msg_Err( p_this, "decoder/filter is leaking pictures, "
2217                  "resetting its ring buffer" );
2218
2219         for( i = 0; i < PICTURE_RING_SIZE; i++ )
2220         {
2221             pp_ring[i]->pf_release( pp_ring[i] );
2222         }
2223
2224         i = 0;
2225     }
2226
2227     p_pic = malloc( sizeof(picture_t) );
2228     if( !p_pic ) return NULL;
2229     p_dec->fmt_out.video.i_chroma = p_dec->fmt_out.i_codec;
2230     vout_AllocatePicture( VLC_OBJECT(p_dec), p_pic,
2231                           p_dec->fmt_out.video.i_chroma,
2232                           p_dec->fmt_out.video.i_width,
2233                           p_dec->fmt_out.video.i_height,
2234                           p_dec->fmt_out.video.i_aspect );
2235
2236     if( !p_pic->i_planes )
2237     {
2238         free( p_pic );
2239         return NULL;
2240     }
2241
2242     p_pic->pf_release = video_release_buffer;
2243     p_pic->p_sys = malloc( sizeof(picture_sys_t) );
2244     if( !p_pic->p_sys )
2245     {
2246         free( p_pic );
2247         return NULL;
2248     }
2249
2250     p_pic->p_sys->p_owner = p_this;
2251     p_pic->i_status = RESERVED_PICTURE;
2252
2253     pp_ring[i] = p_pic;
2254     return p_pic;
2255 }
2256
2257 static picture_t *video_new_buffer_decoder( decoder_t *p_dec )
2258 {
2259     return video_new_buffer( VLC_OBJECT(p_dec),
2260                              p_dec->p_owner->pp_pics, p_dec->p_owner->p_sys );
2261 }
2262
2263 static picture_t *video_new_buffer_filter( filter_t *p_filter )
2264 {
2265     return video_new_buffer( VLC_OBJECT(p_filter),
2266                              p_filter->p_owner->pp_pics,
2267                              p_filter->p_owner->p_sys );
2268 }
2269
2270 static void video_del_buffer( vlc_object_t *p_this, picture_t *p_pic )
2271 {
2272     VLC_UNUSED(p_this);
2273     if( p_pic )
2274     {
2275         free( p_pic->p_q );
2276         free( p_pic->p_data_orig );
2277         free( p_pic->p_sys );
2278         free( p_pic );
2279     }
2280 }
2281
2282 static void video_del_buffer_decoder( decoder_t *p_decoder, picture_t *p_pic )
2283 {
2284     VLC_UNUSED(p_decoder);
2285     p_pic->i_refcount = 0;
2286     p_pic->i_status = DESTROYED_PICTURE;
2287     picture_CleanupQuant( p_pic );
2288 }
2289
2290 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
2291 {
2292     VLC_UNUSED(p_filter);
2293     p_pic->i_refcount = 0;
2294     p_pic->i_status = DESTROYED_PICTURE;
2295     picture_CleanupQuant( p_pic );
2296 }
2297
2298 static void video_link_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2299 {
2300     VLC_UNUSED(p_dec);
2301     p_pic->i_refcount++;
2302 }
2303
2304 static void video_unlink_picture_decoder( decoder_t *p_dec, picture_t *p_pic )
2305 {
2306     VLC_UNUSED(p_dec);
2307     video_release_buffer( p_pic );
2308 }
2309
2310 /*
2311  * SPU
2312  */
2313 static subpicture_t *spu_new_buffer( decoder_t * );
2314 static void spu_del_buffer( decoder_t *, subpicture_t * );
2315
2316 static int transcode_spu_new( sout_stream_t *p_stream, sout_stream_id_t *id )
2317 {
2318     sout_stream_sys_t *p_sys = p_stream->p_sys;
2319
2320     /*
2321      * Open decoder
2322      */
2323
2324     /* Initialization of decoder structures */
2325     id->p_decoder->pf_decode_sub = NULL;
2326     id->p_decoder->pf_spu_buffer_new = spu_new_buffer;
2327     id->p_decoder->pf_spu_buffer_del = spu_del_buffer;
2328     id->p_decoder->p_owner = (decoder_owner_sys_t *)p_stream;
2329     /* id->p_decoder->p_cfg = p_sys->p_spu_cfg; */
2330
2331     id->p_decoder->p_module =
2332         module_Need( id->p_decoder, "decoder", "$codec", 0 );
2333
2334     if( !id->p_decoder->p_module )
2335     {
2336         msg_Err( p_stream, "cannot find spu decoder" );
2337         return VLC_EGENERIC;
2338     }
2339
2340     if( !p_sys->b_soverlay )
2341     {
2342         /* Open encoder */
2343         /* Initialization of encoder format structures */
2344         es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
2345                         id->p_decoder->fmt_in.i_codec );
2346
2347         id->p_encoder->p_cfg = p_sys->p_spu_cfg;
2348
2349         id->p_encoder->p_module =
2350             module_Need( id->p_encoder, "encoder", p_sys->psz_senc, true );
2351
2352         if( !id->p_encoder->p_module )
2353         {
2354             module_Unneed( id->p_decoder, id->p_decoder->p_module );
2355             msg_Err( p_stream, "cannot find spu encoder (%s)", p_sys->psz_senc );
2356             return VLC_EGENERIC;
2357         }
2358     }
2359
2360     if( !p_sys->p_spu )
2361     {
2362         p_sys->p_spu = spu_Create( p_stream );
2363         spu_Init( p_sys->p_spu );
2364     }
2365
2366     return VLC_SUCCESS;
2367 }
2368
2369 static void transcode_spu_close( sout_stream_id_t *id)
2370 {
2371     /* Close decoder */
2372     if( id->p_decoder->p_module )
2373         module_Unneed( id->p_decoder, id->p_decoder->p_module );
2374
2375     /* Close encoder */
2376     if( id->p_encoder->p_module )
2377         module_Unneed( id->p_encoder, id->p_encoder->p_module );
2378 }
2379
2380 static int transcode_spu_process( sout_stream_t *p_stream,
2381                                   sout_stream_id_t *id,
2382                                   block_t *in, block_t **out )
2383 {
2384     sout_stream_sys_t *p_sys = p_stream->p_sys;
2385     subpicture_t *p_subpic;
2386     *out = NULL;
2387
2388     p_subpic = id->p_decoder->pf_decode_sub( id->p_decoder, &in );
2389     if( !p_subpic )
2390         return VLC_EGENERIC;
2391
2392     sout_UpdateStatistic( p_stream->p_sout, SOUT_STATISTIC_DECODED_SUBTITLE, 1 );
2393
2394     if( p_sys->b_master_sync && p_sys->i_master_drift )
2395     {
2396         p_subpic->i_start -= p_sys->i_master_drift;
2397         if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2398     }
2399
2400     if( p_sys->b_soverlay )
2401     {
2402         spu_DisplaySubpicture( p_sys->p_spu, p_subpic );
2403     }
2404     else
2405     {
2406         block_t *p_block;
2407
2408         p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2409         spu_del_buffer( id->p_decoder, p_subpic );
2410         if( p_block )
2411         {
2412             block_ChainAppend( out, p_block );
2413             return VLC_SUCCESS;
2414         }
2415     }
2416
2417     return VLC_EGENERIC;
2418 }
2419
2420 static subpicture_t *spu_new_buffer( decoder_t *p_dec )
2421 {
2422     sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2423     return spu_CreateSubpicture( p_stream->p_sys->p_spu );
2424 }
2425
2426 static void spu_del_buffer( decoder_t *p_dec, subpicture_t *p_subpic )
2427 {
2428     sout_stream_t *p_stream = (sout_stream_t *)p_dec->p_owner;
2429     spu_DestroySubpicture( p_stream->p_sys->p_spu, p_subpic );
2430 }
2431
2432 /*
2433  * OSD menu
2434  */
2435 static int transcode_osd_new( sout_stream_t *p_stream, sout_stream_id_t *id )
2436 {
2437     sout_stream_sys_t *p_sys = p_stream->p_sys;
2438
2439     id->p_decoder->fmt_in.i_cat = SPU_ES;
2440     id->p_encoder->fmt_out.psz_language = strdup( "osd" );
2441
2442     if( p_sys->i_osdcodec != 0 || p_sys->psz_osdenc )
2443     {
2444         msg_Dbg( p_stream, "creating osdmenu transcoding from fcc=`%4.4s' "
2445                  "to fcc=`%4.4s'", (char*)&id->p_encoder->fmt_out.i_codec,
2446                  (char*)&p_sys->i_osdcodec );
2447
2448         /* Complete destination format */
2449         id->p_encoder->fmt_out.i_codec = p_sys->i_osdcodec;
2450
2451         /* Open encoder */
2452         es_format_Init( &id->p_encoder->fmt_in, id->p_decoder->fmt_in.i_cat,
2453                         VLC_FOURCC('Y','U','V','A') );
2454         id->p_encoder->fmt_in.psz_language = strdup( "osd" );
2455
2456         id->p_encoder->p_cfg = p_sys->p_osd_cfg;
2457
2458         id->p_encoder->p_module =
2459             module_Need( id->p_encoder, "encoder", p_sys->psz_osdenc, true );
2460
2461         if( !id->p_encoder->p_module )
2462         {
2463             msg_Err( p_stream, "cannot find spu encoder (%s)", p_sys->psz_osdenc );
2464             goto error;
2465         }
2466
2467         /* open output stream */
2468         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_encoder->fmt_out );
2469         id->b_transcode = true;
2470
2471         if( !id->id ) goto error;
2472     }
2473     else
2474     {
2475         msg_Dbg( p_stream, "not transcoding a stream (fcc=`%4.4s')",
2476                  (char*)&id->p_decoder->fmt_out.i_codec );
2477         id->id = p_sys->p_out->pf_add( p_sys->p_out, &id->p_decoder->fmt_out );
2478         id->b_transcode = false;
2479
2480         if( !id->id ) goto error;
2481     }
2482
2483     if( !p_sys->p_spu )
2484     {
2485         p_sys->p_spu = spu_Create( p_stream );
2486         spu_Init( p_sys->p_spu );
2487     }
2488
2489     return VLC_SUCCESS;
2490
2491  error:
2492     msg_Err( p_stream, "starting osd encoding thread failed" );
2493     if( id->p_encoder->p_module )
2494             module_Unneed( id->p_encoder, id->p_encoder->p_module );
2495     p_sys->b_osd = false;
2496     return VLC_EGENERIC;
2497 }
2498
2499 static void transcode_osd_close( sout_stream_t *p_stream, sout_stream_id_t *id)
2500 {
2501     sout_stream_sys_t *p_sys = p_stream->p_sys;
2502
2503     /* Close encoder */
2504     if( id )
2505     {
2506         if( id->p_encoder->p_module )
2507             module_Unneed( id->p_encoder, id->p_encoder->p_module );
2508     }
2509     p_sys->b_osd = false;
2510 }
2511
2512 static int transcode_osd_process( sout_stream_t *p_stream,
2513                                   sout_stream_id_t *id,
2514                                   block_t *in, block_t **out )
2515 {
2516     sout_stream_sys_t *p_sys = p_stream->p_sys;
2517     subpicture_t *p_subpic = NULL;
2518
2519     /* Check if we have a subpicture to send */
2520     if( p_sys->p_spu && in->i_dts > 0)
2521     {
2522         p_subpic = spu_SortSubpictures( p_sys->p_spu, in->i_dts, false, false );
2523     }
2524     else
2525     {
2526         msg_Warn( p_stream, "spu channel not initialized, doing it now" );
2527         if( !p_sys->p_spu )
2528         {
2529             p_sys->p_spu = spu_Create( p_stream );
2530             spu_Init( p_sys->p_spu );
2531         }
2532     }
2533
2534     if( p_subpic )
2535     {
2536         block_t *p_block = NULL;
2537
2538         if( p_sys->b_master_sync && p_sys->i_master_drift )
2539         {
2540             p_subpic->i_start -= p_sys->i_master_drift;
2541             if( p_subpic->i_stop ) p_subpic->i_stop -= p_sys->i_master_drift;
2542         }
2543
2544         p_block = id->p_encoder->pf_encode_sub( id->p_encoder, p_subpic );
2545         spu_DestroySubpicture( p_sys->p_spu, p_subpic );
2546         if( p_block )
2547         {
2548             p_block->i_dts = p_block->i_pts = in->i_dts;
2549             block_ChainAppend( out, p_block );
2550             return VLC_SUCCESS;
2551         }
2552     }
2553     return VLC_EGENERIC;
2554 }