Closed alatteri closed 2 years ago
Which card it is? I've tried with Kepler-based Titan and the card didn't supported intra refresh, so encoder was needed to set -c libavcodec:encoder=libx264:disable_intra_refresh
.
The Titan also doesn't support 4:4:4 subsampling so subsampling=420
was needed and it decoded to 8-bit only, but it worked at least. I am also trying with 2080 Ti but it seems there are some glitches so I cannot test now.
(Just FYI, use-hw-accel
is pointless here -- it tries to use VAAPI, VDPAU or Videotoolbox, which is incompatible with cuvid decoder.)
BTW, does it even make sense to capture R10k and not UYVY? I am not 100% sure but it seems to me that CUVID for H.264 doesn't support higher specs (subsampling/bitrate) so you'd perhaps get 8-bit 4:2:2 YCbCr from the decoder, anyways.
Hi Martin,
Encoder card was Quadro P6000, receiver card was GTX 1650. I'll be getting access soon to T1000 for encoder. But in the end, your right, probably not even worth spending time on H.264 at this point. Will focus on H.265 which I started a Discussion on. Thanks.
Hello,
I am testing using h264_cuvid decoding.
Receiver:
uv -d gl fs -r alsa:pulse --param alsa-playback-buffer=72000,audio-buffer-len=1000 --audio-scale none --param use-hw-accel,force-lavd-decoder=h264_cuvid
Encoder:
uv -m 1316 -t decklink:codec=R10k -c libavcodec:encoder=libx264:bitrate=30M -s embedded --audio-capture-format channels=8 --audio-codec=AAC:bitrate=192K -P 5004
I'm getting these errors.