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| author | Michael Niedermayer <michaelni@gmx.at> | 2008-06-03 02:43:17 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2008-06-03 02:43:17 +0000 |
| commit | d59591fb02c29b41e5b8d611160971a4493394c2 (patch) | |
| tree | d6dc37569885195d95202d3b5706589af8df9caa /libavcodec | |
| parent | d3ad044ad5a28216147196f61671037d1c5960b4 (diff) | |
| download | ffmpeg-d59591fb02c29b41e5b8d611160971a4493394c2.tar.gz | |
In mpeg1/2 timestamps are associated with the access unit which
contains the first picture startcode that commences in the PES
packet, instead of the first access unit that commences in the
PES packet. Fix the parser to
handle that properly. This was a very long standing bug ...
The change to the seek regressions is because the mpeg ts muxer
stores too many invalid and randomized timestamps which overflow
the 4 entry buffer we use in the parser.
Originally committed as revision 13643 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/mpegvideo_parser.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/mpegvideo_parser.c b/libavcodec/mpegvideo_parser.c index 25d1ddc045..30f149d547 100644 --- a/libavcodec/mpegvideo_parser.c +++ b/libavcodec/mpegvideo_parser.c @@ -29,6 +29,7 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, { ParseContext1 *pc = s->priv_data; const uint8_t *buf_end; + const uint8_t *buf_start= buf; uint32_t start_code; int frame_rate_index, ext_type, bytes_left; int frame_rate_ext_n, frame_rate_ext_d; @@ -43,6 +44,8 @@ static void mpegvideo_extract_headers(AVCodecParserContext *s, bytes_left = buf_end - buf; switch(start_code) { case PICTURE_START_CODE: + ff_fetch_timestamp(s, buf-buf_start-4, 1); + if (bytes_left >= 2) { s->pict_type = (buf[1] >> 3) & 7; } |