Anton Khirnov (12021-12-14): > I don't see a big problem in adding stream (i.e. link-)-level side data > to avfilter.
It is not a problem. In fact, if we were to stay with “uint64_t channel_layout”, that is probably what we would do. But we are discussing a new API that could be very much exactly what we need here. Again: if it does not help in these kind of cases, what is the point of the proposed API? Let us either keep “uint64_t channel_layout” or move to something really significantly more powerful. But as it is, it is a waste of effort. > We already do this for hwcontexts (which btw need to be > better integrated into format negotiation). Interesting remark. I do not know hwcontexts in lavfi enough. Please elaborate if you can. But anyway, we are not currently discussing a rework of the whole hwcontext API. And if we were, and somebody suggested we leave two thirds of the uses cases for something else in side data, I would object to. -- Nicolas George
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