ffmpeg: bump to master

[ReenigneArcher]

Description

Bump ffmpeg from v5.1 to master (9a3bbf8) and enable new AV1 encoders.

Screenshot

Issues Fixed or Closed

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency update (updates to dependencies)
• Documentation update (changes to documentation)
• Repository update (changes to repository files, e.g. .github/...)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

Branch Updates

LizardByte requires that branches be up-to-date before merging. This means that after any PR is merged, this branch
must be updated before it can be merged. You must also
Allow edits from maintainers.

• I want maintainers to keep my branch updated

[psyke83]

I tested the artifact from the latest run against nightly; software and amfenc appear to work fine, but I only tested on Windows 11 in SDR.

[cgutman]

I think we need to also update 02-idr-on-amf.patch to cover amfenc_av1.c

[psyke83]

I think we need to also update 02-idr-on-amf.patch to cover amfenc_av1.c

I've updated patch 01 (amf hdr) and 05 (qsv) with your suggested changes, but 02 (amf idr insertion) looks more complicated to implement.

The AV1 frame types seem different, and I'm not certain how to map the values to the traditional I/B/P/IDR/SKIP frames. The header insertion logic also seems more complicated (with different alignment types), so I'm not 100% certain how to implement the necessary changes.

[cgutman]

We can't merge this because FFmpeg 6.0 introduces a memory leak in the QSV context. We should be able to use FFmpeg 6.1 when it's released.

[cgutman]

Leaving these notes here so we don't forget:

For FFmpeg 6.1, we'll need to also change preanalysis -> preencode in our options dict, since upstream FFmpeg changed the semantics of the existing option in FFmpeg/FFmpeg@f593dc9

I believe the QSV encoders also gained a remote_gaming preset which we should probably use too.

[psyke83]

The AMF colourspace patch has also been updated to v3 (which includes av1 support): https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=9415

No longer blocked due to 6.0 QSV leak

[cgutman]

Testing progress:

• QSV leak fix verified
• Windows AMF H.264+HEVC
• Windows AMF AV1
• Windows QSV H.264+HEVC
• Windows QSV AV1
• Linux VAAPI H.264+HEVC
• Linux VAAPI AV1
• Linux NVENC H.264+HEVC
• Linux NVENC AV1

[cgutman]

I'm satisfied that this build generally works. Let's merge this and we can perform final testing on the PR to the Sunshine repo.