lavf: deprecate r_frame_rate.
[ffmpeg.git] / libavformat / psxstr.c
index d426cd7..6405c24 100644 (file)
@@ -2,25 +2,25 @@
  * Sony Playstation (PSX) STR File Demuxer
  * Copyright (c) 2003 The ffmpeg Project
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
- * @file psxstr.c
+ * @file
  * PSX STR file demuxer
  * by Mike Melanson (melanson@pcisys.net)
  * This module handles streams that have been ripped from Sony Playstation
@@ -29,9 +29,9 @@
  * RIFF headers, followed by CD sectors.
  */
 
+#include "libavutil/intreadwrite.h"
 #include "avformat.h"
-
-//#define PRINTSTUFF
+#include "internal.h"
 
 #define RIFF_TAG MKTAG('R', 'I', 'F', 'F')
 #define CDXA_TAG MKTAG('C', 'D', 'X', 'A')
@@ -68,22 +68,27 @@ static const char sync_header[12] = {0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xf
 
 static int str_probe(AVProbeData *p)
 {
-    int start;
+    uint8_t *sector= p->buf;
 
-    /* need at least 0x38 bytes to validate */
-    if (p->buf_size < 0x38)
+    if (p->buf_size < RAW_CD_SECTOR_SIZE)
         return 0;
 
     if ((AV_RL32(&p->buf[0]) == RIFF_TAG) &&
         (AV_RL32(&p->buf[8]) == CDXA_TAG)) {
 
         /* RIFF header seen; skip 0x2C bytes */
-        start = RIFF_HEADER_SIZE;
-    } else
-        start = 0;
+        sector += RIFF_HEADER_SIZE;
+    }
 
     /* look for CD sync header (00, 0xFF x 10, 00) */
-    if (memcmp(p->buf+start,sync_header,sizeof(sync_header)))
+    if (memcmp(sector,sync_header,sizeof(sync_header)))
+        return 0;
+
+    if(sector[0x11] >= 32)
+        return 0;
+    if(   (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_VIDEO
+       && (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_AUDIO
+       && (sector[0x12] & CDXA_TYPE_MASK) != CDXA_TYPE_DATA)
         return 0;
 
     /* MPEG files (like those ripped from VCDs) can also look like this;
@@ -91,116 +96,30 @@ static int str_probe(AVProbeData *p)
     return 50;
 }
 
-#if 0
-static void dump(unsigned char *buf,size_t len)
-{
-    int i;
-    for(i=0;i<len;i++) {
-        if ((i&15)==0) av_log(NULL, AV_LOG_DEBUG, "%04x  ",i);
-        av_log(NULL, AV_LOG_DEBUG, "%02x ",buf[i]);
-        if ((i&15)==15) av_log(NULL, AV_LOG_DEBUG, "\n");
-    }
-    av_log(NULL, AV_LOG_DEBUG, "\n");
-}
-#endif
-
-static int str_read_header(AVFormatContext *s,
-                           AVFormatParameters *ap)
+static int str_read_header(AVFormatContext *s)
 {
-    ByteIOContext *pb = s->pb;
+    AVIOContext *pb = s->pb;
     StrDemuxContext *str = s->priv_data;
-    AVStream *st;
     unsigned char sector[RAW_CD_SECTOR_SIZE];
     int start;
     int i;
-    int channel;
 
     /* skip over any RIFF header */
-    if (get_buffer(pb, sector, RIFF_HEADER_SIZE) != RIFF_HEADER_SIZE)
+    if (avio_read(pb, sector, RIFF_HEADER_SIZE) != RIFF_HEADER_SIZE)
         return AVERROR(EIO);
     if (AV_RL32(&sector[0]) == RIFF_TAG)
         start = RIFF_HEADER_SIZE;
     else
         start = 0;
 
-    url_fseek(pb, start, SEEK_SET);
+    avio_seek(pb, start, SEEK_SET);
 
     for(i=0; i<32; i++){
         str->channels[i].video_stream_index=
         str->channels[i].audio_stream_index= -1;
     }
 
-    /* check through the first 32 sectors for individual channels */
-    for (i = 0; i < 32; i++) {
-        if (get_buffer(pb, sector, RAW_CD_SECTOR_SIZE) != RAW_CD_SECTOR_SIZE)
-            return AVERROR(EIO);
-
-//printf("%02x %02x %02x %02x\n",sector[0x10],sector[0x11],sector[0x12],sector[0x13]);
-
-        channel = sector[0x11];
-        if (channel >= 32)
-            return AVERROR_INVALIDDATA;
-
-        switch (sector[0x12] & CDXA_TYPE_MASK) {
-
-        case CDXA_TYPE_DATA:
-        case CDXA_TYPE_VIDEO:
-                /* qualify the magic number */
-                if (AV_RL32(&sector[0x18]) != STR_MAGIC)
-                    break;
-                if(str->channels[channel].video_stream_index != -1)
-                    break;
-
-                /* allocate a new AVStream */
-                st = av_new_stream(s, 0);
-                if (!st)
-                    return AVERROR(ENOMEM);
-                av_set_pts_info(st, 64, 1, 15);
-
-                str->channels[channel].video_stream_index = st->index;
-
-                st->codec->codec_type = CODEC_TYPE_VIDEO;
-                st->codec->codec_id   = CODEC_ID_MDEC;
-                st->codec->codec_tag  = 0;  /* no fourcc */
-                st->codec->width      = AV_RL16(&sector[0x28]);
-                st->codec->height     = AV_RL16(&sector[0x2A]);
-            break;
-
-        case CDXA_TYPE_AUDIO:
-            {
-                int fmt;
-
-                if(str->channels[channel].audio_stream_index != -1)
-                    break;
-
-                /* allocate a new AVStream */
-                st = av_new_stream(s, 0);
-                if (!st)
-                    return AVERROR(ENOMEM);
-
-                str->channels[channel].audio_stream_index = st->index;
-
-                fmt = sector[0x13];
-                st->codec->codec_type  = CODEC_TYPE_AUDIO;
-                st->codec->codec_id    = CODEC_ID_ADPCM_XA;
-                st->codec->codec_tag   = 0;  /* no fourcc */
-                st->codec->channels    = (fmt&1)?2:1;
-                st->codec->sample_rate = (fmt&4)?18900:37800;
-            //    st->codec->bit_rate = 0; //FIXME;
-                st->codec->block_align = 128;
-
-                av_set_pts_info(st, 64, 128, st->codec->sample_rate);
-            }
-            break;
-
-        default:
-            /* ignore */
-            break;
-        }
-    }
-
-    /* back to the start */
-    url_fseek(pb, start, SEEK_SET);
+    s->ctx_flags |= AVFMTCTX_NOHEADER;
 
     return 0;
 }
@@ -208,15 +127,16 @@ static int str_read_header(AVFormatContext *s,
 static int str_read_packet(AVFormatContext *s,
                            AVPacket *ret_pkt)
 {
-    ByteIOContext *pb = s->pb;
+    AVIOContext *pb = s->pb;
     StrDemuxContext *str = s->priv_data;
     unsigned char sector[RAW_CD_SECTOR_SIZE];
     int channel;
     AVPacket *pkt;
+    AVStream *st;
 
     while (1) {
 
-        if (get_buffer(pb, sector, RAW_CD_SECTOR_SIZE) != RAW_CD_SECTOR_SIZE)
+        if (avio_read(pb, sector, RAW_CD_SECTOR_SIZE) != RAW_CD_SECTOR_SIZE)
             return AVERROR(EIO);
 
         channel = sector[0x11];
@@ -237,10 +157,25 @@ static int str_read_packet(AVFormatContext *s,
                      && current_sector < sector_count
                      && sector_count*VIDEO_DATA_CHUNK_SIZE >=frame_size)){
                     av_log(s, AV_LOG_ERROR, "Invalid parameters %d %d %d\n", current_sector, sector_count, frame_size);
-                    return AVERROR_INVALIDDATA;
+                    break;
+                }
+
+                if(str->channels[channel].video_stream_index < 0){
+                    /* allocate a new AVStream */
+                    st = avformat_new_stream(s, NULL);
+                    if (!st)
+                        return AVERROR(ENOMEM);
+                    avpriv_set_pts_info(st, 64, 1, 15);
+
+                    str->channels[channel].video_stream_index = st->index;
+
+                    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+                    st->codec->codec_id   = CODEC_ID_MDEC;
+                    st->codec->codec_tag  = 0;  /* no fourcc */
+                    st->codec->width      = AV_RL16(&sector[0x28]);
+                    st->codec->height     = AV_RL16(&sector[0x2A]);
                 }
 
-//        printf("%d %d %d\n",current_sector,sector_count,frame_size);
                 /* if this is the first sector of the frame, allocate a pkt */
                 pkt = &str->channels[channel].tmp_pkt;
 
@@ -251,7 +186,7 @@ static int str_read_packet(AVFormatContext *s,
                     if (av_new_packet(pkt, sector_count*VIDEO_DATA_CHUNK_SIZE))
                         return AVERROR(EIO);
 
-                    pkt->pos= url_ftell(pb) - RAW_CD_SECTOR_SIZE;
+                    pkt->pos= avio_tell(pb) - RAW_CD_SECTOR_SIZE;
                     pkt->stream_index =
                         str->channels[channel].video_stream_index;
                 }
@@ -272,29 +207,43 @@ static int str_read_packet(AVFormatContext *s,
             break;
 
         case CDXA_TYPE_AUDIO:
-#ifdef PRINTSTUFF
-printf (" dropping audio sector\n");
-#endif
-#if 1
-                pkt = ret_pkt;
-                if (av_new_packet(pkt, 2304))
-                    return AVERROR(EIO);
-                memcpy(pkt->data,sector+24,2304);
-
-                pkt->stream_index =
-                    str->channels[channel].audio_stream_index;
-                return 0;
-#endif
-            break;
+            if(str->channels[channel].audio_stream_index < 0){
+                int fmt = sector[0x13];
+                /* allocate a new AVStream */
+                st = avformat_new_stream(s, NULL);
+                if (!st)
+                    return AVERROR(ENOMEM);
+
+                str->channels[channel].audio_stream_index = st->index;
+
+                st->codec->codec_type  = AVMEDIA_TYPE_AUDIO;
+                st->codec->codec_id    = CODEC_ID_ADPCM_XA;
+                st->codec->codec_tag   = 0;  /* no fourcc */
+                st->codec->channels    = (fmt&1)?2:1;
+                st->codec->sample_rate = (fmt&4)?18900:37800;
+            //    st->codec->bit_rate = 0; //FIXME;
+                st->codec->block_align = 128;
+
+                avpriv_set_pts_info(st, 64, 18 * 224 / st->codec->channels,
+                                    st->codec->sample_rate);
+                st->start_time = 0;
+            }
+            pkt = ret_pkt;
+            if (av_new_packet(pkt, 2304))
+                return AVERROR(EIO);
+            memcpy(pkt->data,sector+24,2304);
+
+            pkt->stream_index =
+                str->channels[channel].audio_stream_index;
+            pkt->duration = 1;
+            return 0;
         default:
+            av_log(s, AV_LOG_WARNING, "Unknown sector type %02X\n", sector[0x12]);
             /* drop the sector and move on */
-#ifdef PRINTSTUFF
-printf (" dropping other sector\n");
-#endif
             break;
         }
 
-        if (url_feof(pb))
+        if (pb->eof_reached)
             return AVERROR(EIO);
     }
 }
@@ -302,16 +251,22 @@ printf (" dropping other sector\n");
 static int str_read_close(AVFormatContext *s)
 {
     StrDemuxContext *str = s->priv_data;
+    int i;
+    for(i=0; i<32; i++){
+        if(str->channels[i].tmp_pkt.data)
+            av_free_packet(&str->channels[i].tmp_pkt);
+    }
 
     return 0;
 }
 
-AVInputFormat str_demuxer = {
-    "psxstr",
-    NULL_IF_CONFIG_SMALL("Sony Playstation STR format"),
-    sizeof(StrDemuxContext),
-    str_probe,
-    str_read_header,
-    str_read_packet,
-    str_read_close,
+AVInputFormat ff_str_demuxer = {
+    .name           = "psxstr",
+    .long_name      = NULL_IF_CONFIG_SMALL("Sony Playstation STR format"),
+    .priv_data_size = sizeof(StrDemuxContext),
+    .read_probe     = str_probe,
+    .read_header    = str_read_header,
+    .read_packet    = str_read_packet,
+    .read_close     = str_read_close,
+    .flags          = AVFMT_NO_BYTE_SEEK,
 };