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workaround ms (lack of) intelligence in their design of dvr-ms

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yes kids you do not make 90% of your file contain empty dummy packets
closes issue76

Originally committed as revision 10280 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-09-02 15:58:43 +00:00
parent becc0ef95b
commit da0b94f539
1 changed files with 13 additions and 0 deletions
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13
libavformat/asf.c
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@ -826,6 +826,19 @@ static int asf_read_packet(AVFormatContext *s, AVPacket *pkt)
asf_st->frag_offset += asf->packet_frag_size;
/* test if whole packet is read */
if (asf_st->frag_offset == asf_st->pkt.size) {
//workaround for macroshit radio DVR-MS files
if( s->streams[asf->stream_index]->codec->codec_id == CODEC_ID_MPEG2VIDEO
&& asf_st->pkt.size > 100){
int i;
for(i=0; i<asf_st->pkt.size && !asf_st->pkt.data[i]; i++);
if(i == asf_st->pkt.size){
av_log(s, AV_LOG_DEBUG, "discarding ms fart\n");
asf_st->frag_offset = 0;
av_free_packet(&asf_st->pkt);
continue;
}
}
/* return packet */
if (asf_st->ds_span > 1) {
if(asf_st->pkt.size != asf_st->ds_packet_size * asf_st->ds_span){