From: Elie ROUDNINSKI <xade...@gmail.com> This is the second iteration of https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=2898 but only covering the common V4L2 request API code without the support for h264 codec.
Changes in v2: * Addressed some styling comments * Removed libudev dependency * Device probing has been refactored This code (in one version or another) has been widely used by various projects like LibreELEC[1] for several years already. The uAPI has been stable for several kernel versions too and as of linux5.17, the following codecs are available: * mpeg2 * h264 * vp9 HEVC is in the process of being stabilized too[2]. I have tried to contact the original author of the code but I haven't got an answer so far so I have kept them as commit author but added myself as co-author since I have made substantial modifications to it. Happy to change this either way. It's my first contribution to FFmpeg, so I hope to have done everything right. Additionally, I must confess that I am not an expert of the V4L2 request APIs but since I was frustrated of not being able to use standard FFmpeg on my ARM boards to get hardware decoding working, I figured I might just try to give it a go. There are several comments in the original patch series that I won't have an answer for but I hope that won't be a blocker. That's also why the v4l2-request configure option has been marked as experimental. [1] https://github.com/LibreELEC/LibreELEC.tv/tree/master/packages/multimedia/ffmpeg/patches/v4l2-request [2] https://patchwork.kernel.org/project/linux-media/list/?series=630077 Jonas Karlman (2): avutil/buffer: add av_buffer_pool_flush() avcodec: add common V4L2 request API code configure | 7 + doc/APIchanges | 3 + libavcodec/Makefile | 3 +- libavcodec/hwconfig.h | 2 + libavcodec/v4l2_buffers.c | 8 +- libavcodec/v4l2_context.c | 80 ++-- libavcodec/v4l2_context.h | 5 +- libavcodec/v4l2_device.c | 229 ++++++++++ libavcodec/v4l2_device.h | 60 +++ libavcodec/v4l2_m2m.c | 119 ++--- libavcodec/v4l2_m2m.h | 4 +- libavcodec/v4l2_m2m_dec.c | 10 +- libavcodec/v4l2_m2m_enc.c | 8 +- libavcodec/v4l2_request.c | 892 ++++++++++++++++++++++++++++++++++++++ libavcodec/v4l2_request.h | 87 ++++ libavutil/buffer.c | 7 + libavutil/buffer.h | 5 + libavutil/version.h | 4 +- 18 files changed, 1399 insertions(+), 134 deletions(-) create mode 100644 libavcodec/v4l2_device.c create mode 100644 libavcodec/v4l2_device.h create mode 100644 libavcodec/v4l2_request.c create mode 100644 libavcodec/v4l2_request.h -- 2.35.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
