[FFmpeg-devel] Stereo channel layout mapping

Robert Krüger krueger at lesspain.de
Fri Aug 8 14:36:46 CEST 2014

On Fri, Aug 8, 2014 at 2:31 AM, Michael Niedermayer <michaelni at gmx.at> wrote:
> On Thu, Aug 07, 2014 at 04:52:43PM +0200, Robert Krüger wrote:
>> Hi,
>> could someone explain, what the difference between those two is and
>> when to use which one?
> if you have a file with 2 channels these would likely be AV_CH_LAYOUT_STEREO
> if you have a file with 5.1 that in addition have 2 channels for
> stereo playback equipment then that would have 8 channels and use
> AV_CH_LAYOUT_STEREO_DOWNMIX + whatever else for 5.1

Are you actually talking about having one track with 8 channels with
this layout? It's beginning to make sense now.

Thanks for the feedback,


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