[FFmpeg-trac] #720(avfilter:new): Volume filter does not work
FFmpeg
trac at avcodec.org
Thu Dec 8 06:08:24 CET 2011
#720: Volume filter does not work
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Reporter: jeremysalwen | Owner:
Type: defect | Status: new
Priority: normal | Component: avfilter
Version: git-master | Resolution:
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by jeremysalwen):
Also note that with -af I get
./ffmpeg -v 9 -loglevel 99 -i ~/write.wav -af volume=0.1 ~/lol.wav
ffmpeg version N-35540-g0cc9949, Copyright (c) 2000-2011 the FFmpeg
developers
built on Dec 7 2011 22:26:02 with gcc 4.6.1
configuration: --enable-filter=earwax
libavutil 51. 30. 0 / 51. 30. 0
libavcodec 53. 41. 2 / 53. 41. 2
libavformat 53. 24. 0 / 53. 24. 0
libavdevice 53. 4. 0 / 53. 4. 0
libavfilter 2. 51. 0 / 2. 51. 0
libswscale 2. 1. 0 / 2. 1. 0
[wav @ 0x20e07e0] Format wav probed with size=2048 and score=99
[pcm_s16le @ 0x20e6c00] err{or,}_recognition separate: 1; 1
[pcm_s16le @ 0x20e6c00] err{or,}_recognition combined: 1; 65537
[wav @ 0x20e07e0] parser not found for codec pcm_s16le, packets or times
may be invalid.
[wav @ 0x20e07e0] max_analyze_duration 5000000 reached at 5015510
Input #0, wav, from '/home/jeremy/write.wav':
Duration: 00:04:01.86, bitrate: 1411 kb/s
Stream #0:0, 218, 1/44100: Audio: pcm_s16le ([1][0][0][0] / 0x0001),
44100 Hz, 2 channels, s16, 1411 kb/s
Unrecognized option 'af'
Failed to set value 'volume=0.1' for option 'af'
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/720#comment:1>
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