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chromium-fourier: - patch 3/3 nv12-external-oes-on-modifier-external-only.patch — adds NativePixmapEGLBinding::ModifierRequiresExternalOES helper, extends OzoneImageGLTexturesHolder::GetBinding to honor EGL external_only flag for NV12 dmabufs on panfrost / panthor. Validated on ohm (RK3566 hantro mainline 6.19.10): bbb_1080p30_h264.mp4 plays at 34.7 % combined CPU vs ~131 % pre-patch baseline (~3.8x). - PKGBUILD pkgrel 1->2, source array + sha256sums + prepare() hook for patch 4, patch numbering 1/2,2/2 -> 1/3,2/3,3/3. - NEXT.md appended with 2026-04-28 section: patch 4 design, validation log, KWin GL_ALPHA bug pinpoint (preexisting since 2026-03-06, affects every wayland video client; unrelated to chromium-fourier), device-renumbering note (/dev/video1 = encoder post-reboot). - KWIN_PIVOT.md: 4-phase plan to identify and patch KWin's glTexImage2D(internalFormat=GL_ALPHA) site, ohm-only test plan, scope discipline. - patches/ now tracked (compiler-rt-adjust-paths, enable-v4l2, wayland-allow-direct-egl-gles2, nv12-external-oes); the dead-end chromeos-pipeline-bypass.patch removed. firefox-fourier: - 4 patches (gfxinfo v4l2 stateless fourccs, libwrapper hwdevice ctx, ffmpegvideo v4l2-request route, prefs v4l2-request default). - PKGBUILD bumped to firefox 150.0.1, Arch toolchain glue patches layered in, mozconfig with --without-wasm-sandboxed-libraries for ALARM, package() launcher fix (rm -f symlink before cat > to avoid ENOENT through the dangling /usr/local symlink mach install drops). - 150.0.1-1-aarch64.pkg.tar.zst built on boltzmann (95 MB), pending fresnel power-on for V4L2 stateless validation on RK3399.
53 lines
2.6 KiB
Diff
53 lines
2.6 KiB
Diff
From: Markus Fritsche <mfritsche@reauktion.de>
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Subject: [PATCH 2/4] dom/media/platforms/ffmpeg: wrap
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av_hwdevice_ctx_create
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Date: 2026-04-27
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Background
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----------
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`FFmpegLibWrapper` already wraps `av_hwdevice_ctx_alloc` (no device
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path) and `av_hwdevice_ctx_init`, used by the VAAPI codepath which
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discovers the DRM device implicitly. The v4l2_request hwaccel needs
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the *path-aware* constructor `av_hwdevice_ctx_create`, which lets the
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caller pass `"/dev/dri/renderD128"` (or similar) directly when
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creating an `AV_HWDEVICE_TYPE_DRM` context. libavcodec then binds the
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v4l2_request hwaccel internally based on the codec's `hw_configs`.
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This patch adds the function pointer + the `AV_FUNC_OPTION_SILENT`
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registration. Same versioning as the other `av_hwdevice_ctx_*`
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wrappers (libavutil 58–62). No callers yet — patch 3/4
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(FFmpegVideoDecoder routing) consumes it.
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Bug 1969297.
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diff --git a/dom/media/platforms/ffmpeg/FFmpegLibWrapper.h b/dom/media/platforms/ffmpeg/FFmpegLibWrapper.h
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--- a/dom/media/platforms/ffmpeg/FFmpegLibWrapper.h
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+++ b/dom/media/platforms/ffmpeg/FFmpegLibWrapper.h
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@@ -177,6 +177,11 @@
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// libavutil >= 58
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AVBufferRef* (*av_hwdevice_ctx_alloc)(int);
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int (*av_hwdevice_ctx_init)(AVBufferRef* ref);
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+ // firefox-fourier: device-path-aware constructor needed to bind a
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+ // DRM hwdevice (AV_HWDEVICE_TYPE_DRM) to /dev/dri/renderD* for the
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+ // libavcodec v4l2_request hwaccel.
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+ int (*av_hwdevice_ctx_create)(AVBufferRef** device_ctx, int type,
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+ const char* device, void* opts, int flags);
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AVBufferRef* (*av_hwframe_ctx_alloc)(AVBufferRef* device_ctx);
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int (*av_hwframe_ctx_init)(AVBufferRef* ref);
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AVBufferRef* (*av_buffer_ref)(AVBufferRef* buf);
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diff --git a/dom/media/platforms/ffmpeg/FFmpegLibWrapper.cpp b/dom/media/platforms/ffmpeg/FFmpegLibWrapper.cpp
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--- a/dom/media/platforms/ffmpeg/FFmpegLibWrapper.cpp
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+++ b/dom/media/platforms/ffmpeg/FFmpegLibWrapper.cpp
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@@ -293,6 +293,11 @@ FFmpegLibWrapper::LinkResult FFmpegLibWrapper::Link() {
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AV_FUNC_AVUTIL_58 | AV_FUNC_AVUTIL_59 |
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AV_FUNC_AVUTIL_60 | AV_FUNC_AVUTIL_61 |
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AV_FUNC_AVUTIL_62)
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+ // firefox-fourier: see comment in FFmpegLibWrapper.h
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+ AV_FUNC_OPTION_SILENT(av_hwdevice_ctx_create,
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+ AV_FUNC_AVUTIL_58 | AV_FUNC_AVUTIL_59 |
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+ AV_FUNC_AVUTIL_60 | AV_FUNC_AVUTIL_61 |
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+ AV_FUNC_AVUTIL_62)
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AV_FUNC_OPTION_SILENT(
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av_buffer_ref, AV_FUNC_AVUTIL_58 | AV_FUNC_AVUTIL_59 | AV_FUNC_AVUTIL_60 |
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AV_FUNC_AVUTIL_61 | AV_FUNC_AVUTIL_62)
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