James Almer (12021-12-13): > Can't user defined names let you do that without the need to reuse the same > AVChannel value in a given layout? And for that matter, can you not set said > names within the filter itself and not in the layout?
I do not see how they could. But as always, "I do not see how" is not an argument, it only points to my limitations. So if you do know, please let me know. But I suspect we are talking at cross-purposes here. You say “the filter”, singular, but the issue is not an isolated filter, the issue is about several components working together in harmony. For example a demuxer that knows about exotic layouts and labels such, but later a filter that does not and only knows about standard channel identifiers. > Mapping a channel (each of the data pointers in a frame) to an specific > output, like a speaker. I think this definition is too narrow. Currently, channel layouts are also used to compute matrix coefficients for remixing, for example. But even if we adopt this definition, mapping (oboe left, oboe right, piano left, piano right) onto stereo is perfectly in scope. Regards, -- Nicolas George
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