Using constant quality parameter (not constant quantization) with h264_nvenc

    Hey everyone!

    I'd like to know if it's possible to encode with constant quality bitrate control in h264_nvenc codec, just like it's done with ffmpeg. I'm not talking about constant quantization, just constant quality control mode. I know, for example, that with ffmpeg you have the option to set a max bitrate, or let it loose to adjust bitrate in order to keep a constant quality through the video, but i don't know how to set it in voukoder.

  • Vouk 16. Mai 2022 um 17:08

    Hat das Thema freigeschaltet.

    Here's how to do it:

    1. Select x264 encoder

    2. select a desired preset

    3. change "rate control" to CQP

    4. adjust QP value

    CQP is basically CRF, except you lose some available compression under the same quality settings, better used for compression testing compred to CRF.

    Note: You can do it on x265 encoder as well, but wait for the next version that comes with presets.