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set the previous tag size correctly in flv files

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Originally committed as revision 9919 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
2007-08-04 23:03:17 +00:00
parent 48a59dfe8e
commit f683dbdc6a
1 changed files with 8 additions and 6 deletions
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14
libavformat/flvenc.c
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@@ -275,10 +275,15 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
AVCodecContext *enc = s->streams[pkt->stream_index]->codec; AVCodecContext *enc = s->streams[pkt->stream_index]->codec;
FLVContext *flv = s->priv_data; FLVContext *flv = s->priv_data;
int size= pkt->size; int size= pkt->size;
int flags; int flags, flags_size;
// av_log(s, AV_LOG_DEBUG, "type:%d pts: %"PRId64" size:%d\n", enc->codec_type, timestamp, size); // av_log(s, AV_LOG_DEBUG, "type:%d pts: %"PRId64" size:%d\n", enc->codec_type, timestamp, size);
if(enc->codec_id == CODEC_ID_VP6 || enc->codec_id == CODEC_ID_VP6F)
flags_size= 2;
else
flags_size= 1;
if (enc->codec_type == CODEC_TYPE_VIDEO) { if (enc->codec_type == CODEC_TYPE_VIDEO) {
put_byte(pb, FLV_TAG_TYPE_VIDEO); put_byte(pb, FLV_TAG_TYPE_VIDEO);
@@ -298,10 +303,7 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
put_byte(pb, FLV_TAG_TYPE_AUDIO); put_byte(pb, FLV_TAG_TYPE_AUDIO);
} }
if ((enc->codec_id == CODEC_ID_VP6) || (enc->codec_id == CODEC_ID_VP6F)) put_be24(pb,size + flags_size);
put_be24(pb,size+2); // include the extra byte needed for VP6 in flv and flags
else
put_be24(pb,size+1); // include flags
put_be24(pb,pkt->pts); put_be24(pb,pkt->pts);
put_be32(pb,flv->reserved); put_be32(pb,flv->reserved);
put_byte(pb,flags); put_byte(pb,flags);
@@ -310,7 +312,7 @@ static int flv_write_packet(AVFormatContext *s, AVPacket *pkt)
if (enc->codec_id == CODEC_ID_VP6F) if (enc->codec_id == CODEC_ID_VP6F)
put_byte(pb, enc->extradata_size ? enc->extradata[0] : 0); put_byte(pb, enc->extradata_size ? enc->extradata[0] : 0);
put_buffer(pb, pkt->data, size); put_buffer(pb, pkt->data, size);
put_be32(pb,size+1+11); // previous tag size put_be32(pb,size+flags_size+11); // previous tag size
flv->duration = pkt->pts + pkt->duration; flv->duration = pkt->pts + pkt->duration;
put_flush_packet(pb); put_flush_packet(pb);