[FFmpeg-user] VBR encoding for libsvtav1.

[Gyan Doshi]

On 2023-11-26 07:21 pm, Aditya Dandavate wrote:
> On Sun, 26 Nov, 2023, 6:44 pm Ferdi Scholten, <ferdi at sttc-nlp.nl> wrote:
>
>> I was trying and searching the web to 'how to encode videos with libsvtav1
>>> with help of VBR rate control mode and I found on this page that setting
>>> -rc 1 will enable Variable Bitrate mode.
>>>
>>>
>>>
>> https://gitlab.com/AOMediaCodec/SVT-AV1/-/blob/master/Docs/svt-av1_encoder_user_guide.md
>>>
>>> I tried to set '-rc 1' but the it says :
>>>
>>> `[out#0/nut @ 00000208aba3eac0] Codec AVOption rc (Override the preset
>>> rate-control) has not been used for any stream. The most likely reason is
>>> either wrong type (e.g. a video option with no video streams) or that it

The doc link is for the standalone encoder program supplied with the 
library, not for use with ffmpeg.

For ffmpeg, you should add

-svtav1-params rc=1

Regards,
Gyan