Hi, I'm trying to construct a graph where hardware accelerated format conversion is automatically used if available for a certain input/output combination. It seems like the AVFilter class, unlike AVCodec which has the pix_fmts field, does not expose the supported formats.
The query_formats function of the filters sets the AVFilterFormats structure contained in the incfg/outcfg fields of AVFilterLink, but this is not part of the public API. Am I missing something here? Is there a way to determine when swscale can be replaced by a hardware accelerated format conversion (e.g., vpp_qsv, scale_cuda, scale_vaapi)? Best regards, Øystein
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