Hallo thank you for your mail,

 

I want to programming a video converter, wich convert between *.VOB and Mpeg2 
and I would like to use libavcode. I would like to know how to use this 
library? I would like to get some information about it. 

 

thank you
 
> Date: Mon, 5 Oct 2009 00:34:06 +1100
> From: [email protected]
> To: [email protected]
> Subject: [libav-user] Downsampling from multi-channels to stereo
> 
> Hi there...
> 
> I'm not sure this is the right mailing list, as while it's for an
> external program, it probably will require changes to ffmpeg code.
> 
> Let me know which list would be more appropriate..
> 
> 
> I'm currently investigating how to add some code in MythTV in order to
> properly play multi-channels audio tracks on a stereo system.
> 
> Looking into the matter, I found this post
> http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2008-May/046633.html
> 
> One of the issue at the time was that decoders sent output in native
> channel order for that codec.
> However, I now believe that all codecs (except Ogg, but there's a
> patch) output in SMPTE order.
> 
> The resample code still doesn't handle resampling when the audio source is > 2
> (code start with:
> if ( input_channels > 2)
> {
> av_log(NULL, AV_LOG_ERROR, "Resampling with input channels
> greater than 2 unsupported.\n");
> return NULL;
> }
> )
> 
> What would be the best way to downsample/downmix any audio , and is
> that even possible with the current libavcodec ?
> 
> Thanks in advance for the thousands of answers I'm sure will get soon :)
> 
> Cheers
> Jean-Yves
> _______________________________________________
> libav-user mailing list
> [email protected]
> https://lists.mplayerhq.hu/mailman/listinfo/libav-user
                                          
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