generic-library/ffmpeg
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- Fixes for MPEG-PS which have more than 1 system header, now we don't take

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in account the system header just walk through the file searching streams.
  MPEG-PS demuxer needs more work anyway.

Originally committed as revision 485 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Juanjo 2002-05-11 23:53:04 +00:00
parent 9cd3766f6e
commit ab0ff2a563
1 changed files with 11 additions and 9 deletions
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20
libav/mpeg.c
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@ -432,7 +432,7 @@ static int mpeg_mux_read_header(AVFormatContext *s,
{
MpegDemuxContext *m;
int size, startcode, c, rate_bound, audio_bound, video_bound, mux_rate, val;
int codec_id, n, i, type;
int codec_id, n, i, type, seems_dvd;
AVStream *st;
offset_t start_pos;
@ -440,25 +440,26 @@ static int mpeg_mux_read_header(AVFormatContext *s,
if (!m)
return -ENOMEM;
s->priv_data = m;
seems_dvd = 0;
/* search first pack header */
m->header_state = 0xff;
size = MAX_SYNC_SIZE;
start_pos = url_ftell(&s->pb); /* remember this pos */
for(;;) {
while (size > 0) {
/*while (size > 0) {
startcode = find_start_code(&s->pb, &size, &m->header_state);
if (startcode == PACK_START_CODE)
goto found;
}
}*/
/* System Header not found find streams searching through file */
fprintf(stderr,"libav: MPEG-PS System Header not found!\n");
//fprintf(stderr,"libav: MPEG-PS System Header not found!\n");
url_fseek(&s->pb, start_pos, SEEK_SET);
video_bound = 0;
audio_bound = 0;
c = 0;
s->nb_streams = 0;
size = 15*MAX_SYNC_SIZE;
//size = 15*MAX_SYNC_SIZE;
while (size > 0) {
type = 0;
codec_id = 0;
@ -477,6 +478,7 @@ static int mpeg_mux_read_header(AVFormatContext *s,
audio_bound++;
n = 1;
c = startcode;
seems_dvd = 1;
}
} else if (startcode == 0x1e0 && !check_stream_id(s, startcode)) {
//fprintf(stderr,"Found MPEGVIDEO stream ID: 0x%x\n", startcode);
@ -485,14 +487,14 @@ static int mpeg_mux_read_header(AVFormatContext *s,
n = 1;
c = startcode;
video_bound++;
} /*else if (startcode >= 0x1c0 && startcode <= 0x1df && !check_stream_id(s, startcode)) {
fprintf(stderr,"Found MPEGAUDIO stream ID: 0x%x\n", startcode);
} else if (startcode >= 0x1c0 && startcode <= 0x1df && !seems_dvd && !check_stream_id(s, startcode)) {
//fprintf(stderr,"Found MPEGAUDIO stream ID: 0x%x\n", startcode);
type = CODEC_TYPE_AUDIO;
codec_id = CODEC_ID_MP2;
n = 1;
c = startcode;
audio_bound++;
} */
}
for(i=0;i<n;i++) {
st = av_mallocz(sizeof(AVStream));
if (!st)