I have been trying for a couple of days to leverage the h264_videotoolbox hardware acceleration capabilities of ffmpeg on dual AMD FirePro D500s of my Mac Pro 6,1, but without success. Here is an example of the output I've been getting most recently:
ffmpeg -i infile.mkv -s hd720 -c:v h264_videotoolbox -c:a aac outfile.mkv [h264_videotoolbox @ 0x7f8494b06b40] Error: cannot create compression session: -12903 [h264_videotoolbox @ 0x7f8494b06b40] Try -allow_sw 1. The hardware encoder may be busy, or not supported. [vost#0:0/h264_videotoolbox @ 0x7f8494b074c0] Error while opening encoder - maybe incorrect parameters such as bit_rate, rate, width or height. [vf#0:0 @ 0x7f8493f065c0] Error sending frames to consumers: Generic error in an external library [vf#0:0 @ 0x7f8493f065c0] Task finished with error code: -542398533 (Generic error in an external library) [vf#0:0 @ 0x7f8493f065c0] Terminating thread with return code -542398533 (Generic error in an external library) [vost#0:0/h264_videotoolbox @ 0x7f8494b074c0] Could not open encoder before EOF [vost#0:0/h264_videotoolbox @ 0x7f8494b074c0] Task finished with error code: -22 (Invalid argument) [vost#0:0/h264_videotoolbox @ 0x7f8494b074c0] Terminating thread with return code -22 (Invalid argument) [out#0/matroska @ 0x7f8483f04080] Nothing was written into output file, because at least one of its streams received no packets. Possibly due to the age of these machines, there isn't a load of info on the wider interwebs, so I was wondering if anyone has any suggestions on how to make this work, ideally for both x264 and x265? Thanks! Scott _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
