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fix timestamp prediction for low_delay mpeg streams 

Originally committed as revision 3751 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-12-14 12:04:45 +00:00
parent e42a152bbc
commit 7984bbe2ce
2 changed files with 3 additions and 4 deletions
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1
libavcodec/parser.c
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@ -325,6 +325,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s,
frame_rate_ext_n = (buf[5] >> 5) & 3;
frame_rate_ext_d = (buf[5] & 0x1f);
pc->progressive_sequence = buf[1] & (1 << 3);
avctx->has_b_frames= buf[5] >> 7;
pc->width |=(horiz_size_ext << 12);
pc->height |=( vert_size_ext << 12);

6
libavformat/utils.c
View File

@ -702,10 +702,8 @@ static void compute_pkt_fields(AVFormatContext *s, AVStream *st,
if (st->codec.codec_type == CODEC_TYPE_VIDEO) {
/* XXX: need has_b_frame, but cannot get it if the codec is
not initialized */
if ((st->codec.codec_id == CODEC_ID_MPEG1VIDEO ||
st->codec.codec_id == CODEC_ID_MPEG2VIDEO ||
st->codec.codec_id == CODEC_ID_MPEG4 ||
st->codec.codec_id == CODEC_ID_H264) &&
if (( st->codec.codec_id == CODEC_ID_H264
|| st->codec.has_b_frames) &&
pc && pc->pict_type != FF_B_TYPE)
presentation_delayed = 1;
/* this may be redundant, but it shouldnt hurt */