Carl Eugen Hoyos <[email protected]> added the comment:
A/V desync after transcoding is a regression since r25805.
ffmpeg -i gh1-720p-50-6-seconds.mts -qscale 5 out.mov
FFmpeg version SVN-r26112, Copyright (c) 2000-2010 the FFmpeg developers
built on Dec 28 2010 03:14:53 with gcc 4.4.5
configuration: --cc=/usr/local/gcc-4.4.5/bin/gcc
libavutil 50.36. 0 / 50.36. 0
libavcore 0.16. 0 / 0.16. 0
libavcodec 52.100. 0 / 52.100. 0
libavformat 52.91. 0 / 52.91. 0
libavdevice 52. 2. 2 / 52. 2. 2
libavfilter 1.72. 0 / 1.72. 0
libswscale 0.12. 0 / 0.12. 0
Input #0, mpegts, from 'gh1-720p-50-6-seconds.mts':
Duration: 00:00:06.24, start: 0.366667, bitrate: 14627 kb/s
Program 1
Stream #0.0[0x1011]: Video: h264, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 50
fps, 50 tbr, 90k tbn, 100 tbc
Stream #0.1[0x1100]: Audio: ac3, 48000 Hz, stereo, s16, 192 kb/s
[buffer @ 0x121fef0] w:1280 h:720 pixfmt:yuv420p
Output #0, mov, to 'out.mov':
Metadata:
encoder : Lavf52.91.0
Stream #0.0: Video: mpeg4, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200
kb/s, 50 tbn, 50 tbc
Stream #0.1: Audio: aac, 48000 Hz, stereo, s16, 64 kb/s
Stream mapping:
Stream #0.0 -> #0.0
Stream #0.1 -> #0.1
Press [q] to stop encoding
frame= 441 fps= 92 q=5.0 Lsize= 2211kB time=6.27 bitrate=2887.5kbits/s
dup=129 drop=0
video:2155kB audio:49kB global headers:0kB muxing overhead 0.322848%
----------
priority: normal -> important
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FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/issue2437>
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