build(deps): bump actions/checkout from 5 to 6#39
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supported: h264, hevc, av1, untested: vp8 and vp9
- h264, hevc works on AMD >= NAVI10
- av1 works on AMD > NAVI10(?)
- Bitrate either VBR (variable) or CQP (constant)
- Using Mesa 25 / libva 2.22 (Debian 13),
vaapi supports writing required sequence- and global-packet.
Therefor, no more patch is required to write into a MKV container.
On Debian 12, Mesa 22, these packets are not written
and hence no MKV container can be used.
+++
Test environment:
- GNU/Linux, Debian 13
- vainfo: VA-API version: 1.22 (libva 2.22.0)
- vainfo: Driver version: Mesa Gallium driver 25.0.7-2 for AMD Radeon RX 5700 XT (radeonsi, navi10, LLVM 19.1.7, DRM 3.61, 6.12.57+deb13-amd64)
Codev h264_vaapi, avcodec_open options: rc_mode=CQP,qp=24,b_depth=2,profile=100,level=40 (profile high, level 4.0)
HD1080 source ~45min with 212-330fps
PSNR and SSIM difference to x264 below 1%,
having x264 using profile high, level 4.0, preset fast, rc 23.
Both using constant-quality w/ variable bitrate.
++++
If FEATURE vaapi is enable (autodetected),
the following libraries are linked: X11 va va-drm va-x11.
- hb.c:
- Adding global static 'vaapi_device_ctx0' default device
initialized via hb_avcodec_init() and released via hb_avcodec_free().
The 'vaapi_device_ctx0' is used in vaa_common hb_avcodec_vaapi_set_hwframe_ctx(..).
- hb_avcodec_vaapi_set_hwframe_ctx() attaches the new AVHWFramesContext
to the AVCodecContext at initializing the encoder.
This is the final sink for the vaapi hw-encoder
and Encode(..) performs the frame conversion into it.
- hb_avcodec_test_encoder(..) adds VAAPI branch,
needs refinement
- encavcodec.c
- adding VAAPI branches, enabling available, needs refinement.
Currently profile and level are set to the user preferences,
additionally 'b_depth=2' is being passed.
- added hb_avcodec_test_encoder*(..) functions, currently only
used to check vaapi-*codec*-availability.
We used this codefragment regularly in an earlier HB version.
+++
Discussion:
VAAPI Workflow:
- It uses hardware frames on the target device, which are being transported
from the software device. The frame transport implicitly converts the pix_fmt.
- AVCodecContext's pix_fmt uses AV_PIX_FMT_VAAPI
- AVHWFramesContext: format uses AV_PIX_FMT_VAAPI and sw_format AV_PIX_FMT_NV12,
the latter hinting on the actual hw-frame's target format.
- AV_PIX_FMT_NV12 uses interleaved UV data, where AV_PIX_FMT_YUV420P uses
seperated planes. Both use a separated Y plane upfront.
Therefor both formats are not picture compatible, memory requirements are same.
- Encode(..) allocates a hw_frame and the source frame is being transported
to the hw-frame target using the pic_fmt conversion to NV12.
Finally the hw_frame is being sent 'avcodec_send_frame' and the code-path re-aligns
with non VAAPI.
Further fixes to do:
Validate whether 'b_depth=2' (b-frames) works for all vaapi implementations,
add custom extra-video-encoder field.
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Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](actions/checkout@v5...v6) --- updated-dependencies: - dependency-name: actions/checkout dependency-version: '6' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com>
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Bumps actions/checkout from 5 to 6.
Release notes
Sourced from actions/checkout's releases.
Changelog
Sourced from actions/checkout's changelog.
... (truncated)
Commits
1af3b93update readme/changelog for v6 (#2311)71cf226v6-beta (#2298)069c695Persist creds to a separate file (#2286)ff7abcdUpdate README to include Node.js 24 support details and requirements (#2248)You can trigger a rebase of this PR by commenting
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