[ISSUE] ffmpeg doesn't support rav1e

[ISSUE] ffmpeg doesn't support rav1e

[BlitDev]

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New issue by BlitDev on void-packages repository

https://github.com/void-linux/void-packages/issues/46823

Description:
Hi, I tried to use rav1e in ffmpeg, but it said "Unknown encoder 'librav1e'". Also there is no librav1e in ffmpeg encoders list (-encoders).

```ffmpeg -encoders | rg av1``` output:
```
V..... libaom-av1           libaom AV1 (codec av1)
V..... libsvtav1            SVT-AV1(Scalable Video Technology for AV1) encoder (codec av1)
```

Re: ffmpeg doesn't support rav1e encoder

[mhmdanas]

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New comment by mhmdanas on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1783823627

Comment:
Is there a reason why you can't use libsvtav1 instead?

Re: ffmpeg doesn't support rav1e encoder

[mhmdanas]

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New comment by mhmdanas on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1783823627

Comment:
Is there a reason why you can't/don't want touse libsvtav1 instead?

Re: ffmpeg doesn't support rav1e encoder

[mhmdanas]

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New comment by mhmdanas on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1783823627

Comment:
Is there a reason why you can't/don't want to use libsvtav1 instead?

Re: ffmpeg doesn't support rav1e encoder

[BlitDev]

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New comment by BlitDev on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1784039300

Comment:
> Is there a reason why you can't/don't want to use libsvtav1 instead?

I've tried to set the crf parameter, but it threw an error:
```
Codec AVOption crf (Select the quality for constant quality mode) specified for output file #0 (test-3.mkv) 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 is a private option of some encoder which was not actually used for any stream.
```

My command: ```ffmpeg -i source.mkv -c:v libsvtav1 -crf 30 test-3.mkv```
The crf is actually set at 50 (default value) although I set it at 30.

Re: ffmpeg doesn't support rav1e encoder

[mhmdanas]

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New comment by mhmdanas on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1784071283

Comment:
Apparently libaom-av1 supports the crf parameter, could you try that maybe?

Re: ffmpeg doesn't support rav1e encoder

[BlitDev]

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New comment by BlitDev on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1785429525

Comment:
> Apparently libaom-av1 supports the crf parameter, could you try that maybe?

Why rav1e is not supported?

Re: ffmpeg doesn't support rav1e encoder

[BlitDev]

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New comment by BlitDev on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1785429525

Comment:
> Apparently libaom-av1 supports the crf parameter, could you try that maybe?

Why rav1e is not supported? libaom-av1 is too slow compared to libsvtav1

Re: ffmpeg doesn't support rav1e encoder

[mhmdanas]

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New comment by mhmdanas on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1819051921

Comment:
I'm not aware of any particular reason, if you need rav1e a PR adding rav1e support to ffmpeg may be accepted.

Re: [ISSUE] [CLOSED] ffmpeg doesn't support rav1e encoder

[ahesford]

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Closed issue by BlitDev on void-packages repository

https://github.com/void-linux/void-packages/issues/46823

Description:
Hi, I tried to use rav1e in ffmpeg, but it said "Unknown encoder 'librav1e'". Also there is no librav1e in ffmpeg encoders list (-encoders).

```ffmpeg -encoders | rg av1``` output:
```
V..... libaom-av1           libaom AV1 (codec av1)
V..... libsvtav1            SVT-AV1(Scalable Video Technology for AV1) encoder (codec av1)
```

Re: ffmpeg doesn't support rav1e encoder

[ahesford]

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New comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/issues/46823#issuecomment-1844200783

Comment:
This isn't really an "issue" so much as a configuration choice. As noted, you can always PR support for rav1e if you want to kick off a discussion about whether it should be added.