[nzlug] FFMpeg Help (Convert MonoLeft-Stereo to real Mono or mirrored Stereo)

[Dirk Pilat]

WHat's the original file format?

D

On Wed, 27 Sep 2006 10:47:00 +1200, Andrew Bruce <abruce at hope-st.ath.cx>  
wrote:

> I've got a bunch of video files that have been recorded in some wierd  
> Mono-Stereo configuration (ie Stereo with left channel containing audio,  
> right channel as empty).
>
> I'm trying to compress these files using FFMpeg as they are currently  
> absolutely massive.
>
> What I want to do is either downmix the whole thing to proper single  
> channel only mono, or (better) take the left channel mono recording and  
> put it across so that it is mono on both left and right stereo channels.
>
> Has anyone done this, or know how it can be done?
>
> I want to be able to do it within FFMpeg itself if possible, the actual  
> issue is slightly larger than explained so I can't split the audio from  
> the video at this stage (although if I have to, I'm happy to compress  
> the video, split off the audio, modify it and re-add it to the video if  
> I have to (or any other similar methods to this)).
>
> Andrew
>
>
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-- 
Dr Dirk Pilat
Central Medical
Oamaru