Description: This rendering profile for Kdenlive opens up new perspectives for lossy and patent-free media diffusion. It combines Opus audio with the AV1 video codec. Both aim to save bandwidth and storage capacity, using up to two times better compression algorithms than their current and patented counterparts.
Yet, such achievement comes with a cost. These codecs—especially AV1—tremendously hurt performances; current hardware often suffers during the encoding phase… sometimes even in the decoding one! While waiting for compute power to grow up, tweaking the 'AV1' MLT preset remains a delicate balancing act: 1. replacing 'libaom-av1' by the 'libsvtav1' encoder, speeding up the overall process; 2. decreasing 'crf' (constant rate factor), which in exchange improves the visual quality.
Last but not least, be aware that the 'g' (group of pictures) parameter is calibrated by default for high frame rate footage compliant to the PAL standard (g=50 for 50 fps). For other frame rates, please adjust the in-app 'quality' slider to make this 'g' value equal to the sources frame rate (i.e. g=24 for 24 fps; g=30 for 30; g=60 for 60).Last changelog:
Quality of Life Improvement
Adjusted the default quality used by this profile.
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