[FFmpeg-user] Tagging audio channels

Tim Nicholson nichot20 at yahoo.com
Fri Jul 13 15:13:58 CEST 2012

On 13/07/12 12:39, Carl Eugen Hoyos wrote:
> Tim Nicholson <nichot20 <at> yahoo.com> writes:
>>> Do you have a sample that is tagged "L/R L/R for main 
>>> and alternative stereo"?
>>> I ask because I suspect this tagging is not supported by any 
>>> container supported by FFmpeg.
>> Yes. Not uncommon in .mov to have L R L R.
> Could you provide a sample?


Quicktime says its L/R L/R ffprobe FL/FR FL/FR. So I guess using FL/FR
would work if it translated back to L/R in quicktime land.

> I just looked in the caf specification and it seems to me 
> this is only possible with "channel description" and we do 
> not have many samples with a useful description.
> Carl Eugen
> [..]


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