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SVT-AV1 V4 and Opus V1.6.1 - Printable Version

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+--- Thread: SVT-AV1 V4 and Opus V1.6.1 (/thread-4317.html)

Pages: 1 2


RE: SVT-AV1 V4 and Opus V1.6.1 - lameuser - 13.02.2026

In the "latest" SVT-AV1-enc app ,CRF can be increased by .25 !

See :

--crf                        Constant Rate Factor value, setting this value is similar to `--rc 0 --aq-mode 2 --qp x`.  Compared to `--qp`, `--crf` can take a value up to 70, and can be set in 0.25 increments, default is 35 [1-70]


Can you please add it to Hybrid ?
Thanks in advance !


RE: SVT-AV1 V4 and Opus V1.6.1 - Selur - 13.02.2026

"can be set in 0.25 increments," Rolleyes
=> uploaded a new dev which should support max 70 and 0.25 stepping when crf is used.

Cu Selur


RE: SVT-AV1 V4 and Opus V1.6.1 - lameuser - 18.02.2026

Hello!

Another parameters needs to be added. Please. Smile
Thank you !

--chroma-qm-min
--chroma-qm-max


RE: SVT-AV1 V4 and Opus V1.6.1 - Selur - 18.02.2026

Will look at it later.

Cu Selur


RE: SVT-AV1 V4 and Opus V1.6.1 - Selur - 18.02.2026

Uploaded a new dev version which supports:
--chroma-qm-min              Min chroma quant matrix flatness, default is 8 [0-15]
--chroma-qm-max              Max chroma quant matrix flatness, default is 15 [0-15]

Cu Selur