- Available Values: ultrafast, superfast, veryfast, faster, fast, medium, slow, slower, veryslow
+ Optimize the trade-off between encoding speed (encoded frames per second) and compression efficiency (quality per bit in the bitstream). Defaults to superfast.
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- Available Tune settings:
- film - use for high quality movie content; lowers deblocking
- animation - good for cartoons; uses higher deblocking and more reference frames
- grain - preserves the grain structure in old, grainy film material
- stillimage - good for slideshow-like content
- fastdecode - allows faster decoding by disabling certain filters
- zerolatency - good for fast encoding and low-latency streaming
+ Tuning options, which are applied after the preset. Defaults to zerolatency.