Build the hwupload filter that moves a decoded software frame onto the GPU.
ffmpeg's hwupload takes no options — it picks the hardware frame type from
the decoder's pixel format — so this only validates that the acceleration
method is one ffmpeg can actually upload into.
Build the
hwuploadfilter that moves a decoded software frame onto the GPU.ffmpeg's
hwuploadtakes no options — it picks the hardware frame type from the decoder's pixel format — so this only validates that the acceleration method is one ffmpeg can actually upload into.