Carl Eugen Hoyos <[email protected]> added the comment:
out.wav sounds very bad (halved frequency?) at the moment when original audio
changes to stereo.
ffmpeg -i sample.ts -ac 2 out.wav
FFmpeg version SVN-r25446, Copyright (c) 2000-2010 the FFmpeg developers
built on Oct 12 2010 01:33:52 with gcc 4.4.4
configuration: --cc=/usr/local/gcc-4.4.4/bin/gcc
libavutil 50.32. 3 / 50.32. 3
libavcore 0. 9. 1 / 0. 9. 1
libavcodec 52.92. 0 / 52.92. 0
libavformat 52.81. 0 / 52.81. 0
libavdevice 52. 2. 2 / 52. 2. 2
libavfilter 1.50. 1 / 1.50. 1
libswscale 0.12. 0 / 0.12. 0
[mpegts @ 0x11ca470] max_analyze_duration reached
Input #0, mpegts, from 'sample.ts':
Duration: 00:00:13.32, start: 180.518489, bitrate: 5481 kb/s
Program 1
Stream #0.0[0xc9]: Video: mpeg2video, yuv420p, 720x576 [PAR 16:15 DAR 4:3],
15000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
Stream #0.1[0xca]: Audio: mp2, 48000 Hz, 1 channels, s16, 192 kb/s
Stream #0.2[0xcc](): Subtitle: [6][0][0][0] / 0x0006
Output #0, wav, to 'out.wav':
Metadata:
encoder : Lavf52.81.0
Stream #0.0: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
Stream mapping:
Stream #0.1 -> #0.0
Press [q] to stop encoding
size= 2448kB time=13.06 bitrate=1536.0kbits/s
video:0kB audio:2448kB global headers:0kB muxing overhead 0.001755%
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substatus: needs_more_info -> reproduced
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FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/issue2292>
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