ffmpeg: update V4L2 Request, add RPi DRM PRIME, trust store

2026-11-15T00:04:03Z

Move the V4L2 Request patches to the head of FFmpeg pull request 20847 (3ac4e07593ee), Jonas Karlman's submission of them, as 120-v4l2-request-01 to -11. Their hwcontext maps the capture formats rpi-hevc-dec prefers, NV12MT_COL128 and NV12MT_10_COL128, only where linux/videodev2.h defines them, which the toolchain's kernel headers do not, so patch 151 defines them with the Raspberry Pi kernel's values. Patch 121, Arun Iyengar's fix from that pull request, hands each frame a reference-counted session object, so that a frame returned after an SPS change re-created the hwaccel finds its session closed and needs no wait; FFmpeg crashed or hung on such HEVC streams. Patch 122 sets the EXT SPS RPS controls of Linux 7.0, from which rkvdec's HEVC decoders take the reference picture sets a slice header selects, and patch 152 defines them for the toolchain's kernel headers. The V4L2 M2M decoders copy every picture into a software frame, so a player cannot hand a stateful decoder's capture buffers to the display as it does with the V4L2 Request hwaccels; the Raspberry Pi 4's H.264 decoder is stateful. Carry LibreELEC's v4l2-drmprime series, rebased for FFmpeg 9 in LibreELEC commit cd0c6aab93d9 ("ffmpeg: rebase and re-enable v4l2-drmprime patches"), one file per patch of packages/multimedia/ffmpeg/patches/v4l2-drmprime/0001-v4l2-drmprime.patch: 130-v4l2-drmprime-01 to -08 (Lukas Rusak): DRM PRIME output, a DRM hwcontext, software pixel formats, a pixel format option and flush 130-v4l2-drmprime-09 (Rudi Heitbaum): adapt to FFmpeg 9 The decoders include libdrm's drm_fourcc.h, so FFMPEG_V4L2_M2M selects FFMPEG_LIBDRM. Patches 200 and 201 are refreshed. The series allocates a DRM hwdevice context per decoder and a hwframes context per queue and keeps them for the life of the process. Patch 131 releases all three when the decoder context is destroyed. Give the mbedtls backend, the package's default TLS backend, a trust store, so that https works with peer verification on, as it is by default. Take the patch submitted upstream, which reads SSL_CERT_FILE and otherwise the system bundle. Let a caller keep a network stream on one uplink of a multi-homed host. Patches 172 and 173, submitted upstream, make the segment and key connections of an HLS or DASH stream inherit local_addr from the playlist connection. Patches 175 and 176, submitted upstream, add local_dev to the tcp and udp protocols, which binds the socket to a named device with SO_BINDTODEVICE, joins multicast groups on that device and is inherited the same way. Since FFmpeg 9.0, struct Program in the MPEG-TS demuxer is about 131 KiB, and pat_cb() and pmt_cb() each keep one on the stack. The ffmpeg program demuxes every input in a thread with musl's default stack of 128 KiB, so it crashes on any MPEG-TS input. Backport FFmpeg commit 6edbe0d5af28 ("avformat/mpegts: avoid ~131 KiB stack frames in PAT/PMT callbacks"), which swaps two programs member by member and copies only the stream list of the previous program. Fixes: e1a07d05b984 ("ffmpeg: add V4L2 hardware decoding patches from LibreELEC") Fixes: 785210230381 ("ffmpeg: update to 9.0.1") Link: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20847 Link: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24565 Link: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24566 Link: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/25960 Link: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/26065 Signed-off-by: Daniel Golle

ffmpeg: add V4L2 hardware decoding patches from LibreELEC

2026-09-15T20:40:22Z

V4L2 Request API hwaccels for stateless decoders such as Allwinner cedrus, exporting DRM_PRIME frames, and a V4L2 M2M deinterlace filter driving mem2mem deinterlacers such as Allwinner's sun8i-di on DRM_PRIME frames. The hwaccels introduce the v4l2-request and libudev configure options. Add the FFMPEG_V4L2_REQUEST option (pulls libdrm and libudev) to the libffmpeg menu, keep both new configure options explicitly off in the common block like the other autodetected ones, and re-add the *_v4l2request hwaccels under manual component selection. Patches: 120-v4l2-request-01 to -13: carried over from LibreELEC (packages/multimedia/ffmpeg/patches/v4l2-request/0001-v4l2-request.patch as of LibreELEC commit 79de202a10), one file per patch of the series: 01 avutil/hwcontext: Add hwdevice type for V4L2 Request API (Jonas Karlman) 02 avutil/hwcontext_v4l2request: Probe for a capable media and video device (Jonas Karlman) 03 avcodec: Add common V4L2 Request API code (Jonas Karlman) 04 avcodec/v4l2request: Add common decode support for hwaccels (Jonas Karlman) 05 avcodec: Add V4L2 Request API mpeg2 hwaccel (Jonas Karlman) 06 avcodec/h264dec: add ref_pic_marking and pic_order_cnt bit_size to slice context (Boris Brezillon) 07 avcodec: Add V4L2 Request API h264 hwaccel (Jernej Skrabec) 08 avcodec: Add V4L2 Request API hevc hwaccel (Jernej Skrabec) 09 avcodec: Add V4L2 Request API vp8 hwaccel (Boris Brezillon) 10 avcodec: Add V4L2 Request API vp9 hwaccel (Boris Brezillon) 11 avcodec: Add V4L2 Request API av1 hwaccel (Jonas Karlman) 12 avutil/hwcontext_v4l2request: Add support for AFBC_16X16_SPLIT pix fmts (Jernej Skrabec) 13 avutil/hwcontext_v4l2request: Add support for BROADCOM_SAND128 pix fmts (Jonas Karlman) Co-developed by Alex Bee, Benjamin Gaignard and Ezequiel Garcia. 140-vf-deinterlace-v4l2m2m: carried over from LibreELEC (packages/multimedia/ffmpeg/patches/vf-deinterlace-v4l2m2m/0001-vf-deinterlace-v4l2m2m.patch as of LibreELEC commit 9ef6c9c6f7; Jernej Skrabec): adds the deinterlace_v4l2m2m filter Headers unchanged, hunks refreshed with quilt; the patched tree is identical to the one LibreELEC's files produce. LibreELEC's v4l2-drmprime patch (stateful M2M decoders) is not carried: it needs a rebase for FFmpeg 9 which LibreELEC has not done either. The V4L2 Request API series is under review upstream as: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20847 The patches here are taken from LibreELEC, though, as that's the set that Kodi is built and tested against, incl. some platform specific fixes. Signed-off-by: Mirko Vogt

packages/multimedia/ffmpeg/patches/120-v4l2-request-12.patch, branch master

ffmpeg: update V4L2 Request, add RPi DRM PRIME, trust store

ffmpeg: add V4L2 hardware decoding patches from LibreELEC