Carl Eugen Hoyos <[email protected]> added the comment:
The sample is probably broken: MPlayer looses sync when several seconds of video
appear to be missing after four seconds, and needs a few seconds to re-sync.
FFmpeg's output file has a constant A/V sync problem.
ffmpeg -i 83826_sample.flv test.mp4
FFmpeg version SVN-r19698, Copyright (c) 2000-2009 Fabrice Bellard, et al.
configuration: --cc=/opt/intel/cce/10.1.023/bin/icc --cpu=core2 --enable-gpl
--extra-cflags=-parallel --extra-ldflags=-parallel --enable-postproc
--enable-avfilter --enable-pthreads --enable-nonfree --enable-version3
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libdirac
--enable-libfaac --enable-libfaad --enable-libgsm --enable-libmp3lame
--extra-cflags='-I/usr/include/openjpeg -I/usr/include/gsm' --enable-libopenjpeg
--enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis
--enable-libx264 --enable-libxvid
libavutil 50. 3. 0 / 50. 3. 0
libavcodec 52.33. 0 / 52.33. 0
libavformat 52.38. 0 / 52.38. 0
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 0. 5. 0 / 0. 5. 0
libswscale 0. 7. 1 / 0. 7. 1
libpostproc 51. 2. 0 / 51. 2. 0
built on Aug 25 2009 11:05:57, gcc: Intel(R) C++ gcc 4.3 mode
Seems stream 0 codec frame rate differs from container frame rate: 30.00 (30/1)
-> 15.00 (15/1)
Input #0, flv, from '83826_sample.flv':
Duration: 00:13:17.83, start: 0.000000, bitrate: N/A
Stream #0.0: Video: h264, yuv420p, 800x448 [PAR 1:1 DAR 25:14], 15 tbr, 1k
tbn, 30 tbc
Stream #0.1: Audio: mp3, 22050 Hz, 2 channels, s16
Metadata
width : 800
height : 448
duration : 798
Output #0, mp4, to 'test.mp4':
Stream #0.0: Video: mpeg4, yuv420p, 800x448 [PAR 1:1 DAR 25:14], q=2-31, 200
kb/s, 15 tbn, 15 tbc
Stream #0.1: Audio: aac, 22050 Hz, 2 channels, s16, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop encoding
[mp3 @ 0x13b06a0]mdb:197, lastbuf:0 skipping granule 0
Last message repeated 1 times
[mp3 @ 0x13b06a0]mdb:199, lastbuf:135 skipping granule 0
[mp3 @ 0x13b06a0]mdb:193, lastbuf:176 skipping granule 0
[h264 @ 0x13b0080]AVC: nal size 52924829kB time=105.19 bitrate= 298.2kbits/s
[h264 @ 0x13b0080]no frame!
Error while decoding stream #0.0
frame= 1621 fps=258 q=22.0 Lsize= 4036kB time=109.88 bitrate= 300.9kbits/s
video:3077kB audio:926kB global headers:0kB muxing overhead 0.823465%
----------
status: new -> open
substatus: new -> open
_____________________________________________________
FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/roundup/ffmpeg/issue1337>
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