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Implement stream switching for AVI demuxer.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@21419 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2006-12-01 17:57:29 +00:00
parent e6981cadec
commit d441d65f34
1 changed files with 25 additions and 0 deletions
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25
libmpdemux/demux_avi.c
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@ -762,6 +762,31 @@ static int demux_avi_control(demuxer_t *demuxer,int cmd, void *arg){
if (sh_video->video.dwLength<=1) return DEMUXER_CTRL_GUESS;
return DEMUXER_CTRL_OK;
case DEMUXER_CTRL_SWITCH_AUDIO:
case DEMUXER_CTRL_SWITCH_VIDEO: {
int audio = (cmd == DEMUXER_CTRL_SWITCH_AUDIO);
demux_stream_t *ds = audio ? demuxer->audio : demuxer->video;
void **streams = audio ? demuxer->a_streams : demuxer->v_streams;
int maxid = FFMAX(99, audio ? MAX_A_STREAMS : MAX_V_STREAMS);
int chunkid;
if (ds->id < -1)
return DEMUXER_CTRL_NOTIMPL;
if (*(int *)arg >= 0)
ds->id = *(int *)arg;
else {
do {
if (++ds->id >= maxid) ds->id = 0;
} while (!streams[ds->id]);
}
chunkid = (ds->id / 10 + '0') | (ds->id % 10 + '0') << 8;
ds->sh = NULL;
demux_avi_select_stream(demuxer, chunkid);
*(int *)arg = ds->id;
return DEMUXER_CTRL_OK;
}
default:
return DEMUXER_CTRL_NOTIMPL;
}