On 4/28/2021 3:03 AM, Bouke wrote:
Trying to capture decklink input to ProRes. FFmpeg is VERY cpu hungry (230 % on my sytem in the example below, increasing when upping the quality of Prores) Media Express / VTEncoderXPCservice use just half the CPU.
My assumption is that the BMD code is simply more optimized for the tasks it's doing, and probably using a licensed encoder. Otherwise, are all the parameters the same between tests? I was looking specifically at pix_fmt (might need to move that earlier in the cmd line). (I'd experiment myself with this but have a production on Saturday and a lot to do before that.)
(Eventually I want to do multiple streams on a single machine.)
Do you need prores output? Can you capture into something else and then transcode?
Later, z! _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
