> Extract of "C:\SOFTWARE\ffmpeg\0-homebuilt-x64\ffmpeg.exe" -hide_banner -v > debug -h encoder=h264_nvenc > -rc <int> E..V...... Override the preset rate-control > (from -1 to INT_MAX) (default -1) > constqp 0 E..V...... Constant QP mode > vbr 1 E..V...... Variable bitrate mode > cbr 2 E..V...... Constant bitrate mode > vbr_minqp 8388612 E..V...... Variable bitrate mode with MinQP > (deprecated) > ll_2pass_quality 8388616 E..V...... Multi-pass optimized for image > quality (deprecated) > ll_2pass_size 8388624 E..V...... Multi-pass optimized for > constant frame size (deprecated) > vbr_2pass 8388640 E..V...... Multi-pass variable bitrate mode > (deprecated) > cbr_ld_hq 8 E..V...... Constant bitrate low delay high > quality mode > cbr_hq 16 E..V...... Constant bitrate high quality > mode > vbr_hq 32 E..V...... Variable bitrate high quality > mode
Ah. Pages 17 onward from this nvidia pdf go some way to explaining it. http://developer.download.nvidia.com/video/gputechconf/gtc/2020/presentations/s21337-nvidia-video-technologies-video-codec-and-optical-flow-sdk.pdf _______________________________________________ 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".
