45f4b5e56f
Mirror of arch/ffmpeg-v4l2-request-fourier into the Debian tree. Same source pin (Kwiboo v4l2-request-n8.1 @ b57fbbe), same 2 patches (libudev-bypass-fallback + nv15-to-p010-unpack), same configure flag policy (drop X11/AMF/CUDA/Bluray/Vulkan/SDL2/etc. per Fourier fleet focus). Output: single .deb at /usr/bin/ffmpeg + /usr/bin/ffprobe + /usr/lib/aarch64-linux-gnu/libav*.so.61. Conflicts/Replaces the stock Debian ffmpeg + per-lib packages; takes epoch 2 (matches Debian's existing ffmpeg epoch). Provides 'ffmpeg -hwaccel v4l2request' + '-hwaccel drm' routes that drive rkvdec / hantro / cedrus / rpi-hevc-dec / daedalus_v4l2 stateless decoders through libavcodec's hwdevice DRM path, bypassing libva. Required by mpv-fourier and firefox-fourier as their backing FFmpeg; also the kdirect bit-exact reference for libva-v4l2-request-fourier validation. NOT strictly required for the VAAPI-only path on daedalus-v4l2 hosts (stock Debian ffmpeg + libva-v4l2-request- fourier covers that). Install only when going firefox-fourier or kdirect. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>