[FFmpeg-user] convert video to mp3
449127727 at qq.com
Wed Dec 11 15:31:44 CET 2013
i am sorry ;
I want develop one c program which can convert the audio from video to mp3 file;
I need more help than the 'ffmpeg/doc/examples/*.c'.
I searched ' convert video to mp3' ,nothing found.
can you supply some c program demo ,usefull website or good idea
thank you Moritz, thank you every body.
------------------ Original ------------------
From: "Moritz Barsnick";<barsnick at gmx.net>;
Date: Wed, Dec 11, 2013 09:32 PM
To: "FFMpeg user discussions"<ffmpeg-user at ffmpeg.org>;
Subject: Re: [FFmpeg-user] convert video to mp3
On Wed, Dec 11, 2013 at 14:58:43 +0800, ???????????? wrote:
> how can i convert video 2 mp3 file?
I consider this impossible. If you are referring to what we usually
understand under "mp3", this is an audio format. You cannot "convert"
video to audio.
If you are looking for a filter which can create a sound which
"represents" the visuals in your video, I believe ffmpeg has no such
> ffmpeg -filters | grep -F 'V->A'
I think the other way is possible:
> ffmpeg -filters | grep -F 'A->V'
... avectorscope A->V Convert input audio to vectorscope video output.
... showspectrum A->V Convert input audio to a spectrum video output.
... showwaves A->V Convert input audio to a video output.
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