Magnets Posted January 12, 2017 Share Posted January 12, 2017 I'm experimenting with video transcoding but am getting problems when using vdpau to decode and the hw video encoder. Using this https://github.com/stulluk/FFmpeg-Cedrus and https://github.com/uboborov/ffmpeg_h264_H3 software decode & hw encode = 15-20FPS but high CPU usage. it can do 60FPS encoding rate with 960x540 30fps h264 source dropping the compression helps a bit too (-qp 24, default is 30) hw decode & hw encode of 1080 h264 = 1FPS, using 4k h265 as the source gives 1.5 FPS ffmpeg -hwaccel vdpau -i 1080p30.mp4 -c:v cedrus264 -c:a copy -pix_fmt nv12 out.mp4 Is the video engine designed to do transcoding? Link to comment Share on other sites More sharing options...
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