On 9/8/2018 3:49 PM, Timo Rothenpieler wrote:
From: Roman Arzumanyan <rarzuman...@nvidia.com>Signed-off-by: Timo Rothenpieler <t...@rothenpieler.org> --- I'm not overly a fan of a rotate filter that only support 90° angles either. So here's my modified version of the original transpose filter, which now behaves the exact same as the software transpose filter. Additionally, I removed the format conversion from the filter. That's the job of the scale filter, and also saves you from doing pointless double format conversion if you scale and transpose NV12 video. Nvenc accepts yuv420p/444p input anyway, and if you really need to, one can add another scale_npp after to get back nv12. A possible commandline for this is: ./ffmpeg.exe -hwaccel cuvid -c:v h264_cuvid -i in.mkv -c copy -c:v h264_nvenc -vf scale_npp=format=yuv420p,transpose_npp=cclock_flip out.mkv
I'll probably remove the interp_algo from this before committing, hard coding it to nearest neighbor. I'm unable to see any difference between them for perfect 90° angles except that NN is easily 10 times faster than the current default Cubic.
smime.p7s
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