[FFmpeg-user] How to use the audio filter

iefvＨＲＳ lovexue4ever at qq.com
Thu Jul 5 09:27:44 CEST 2012

Previous message: [FFmpeg-user] Hi, has anyone do any reaserch on hareware acceleration of MPEG4-part2?I want to add this API in ffmpeg, but I don't where to get in.Thanks
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How to use the audio filter "atempo" as  command line parameters 

such as 


ffmpeg -i youku.flv -af atempo=1.25 


But it no use.and a error found!

Previous message: [FFmpeg-user] Hi, has anyone do any reaserch on hareware acceleration of MPEG4-part2?I want to add this API in ffmpeg, but I don't where to get in.Thanks
Next message: [FFmpeg-user] How to use the audio filter
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