On Thu, Jan 18, 2024 at 10:15 PM Shengjiu Wang <shengjiu.wang@xxxxxxx> wrote: > > Audio signal processing has the requirement for memory to > memory similar as Video. > > This patch is to add this support in v4l2 framework, defined > new buffer type V4L2_BUF_TYPE_AUDIO_CAPTURE and > V4L2_BUF_TYPE_AUDIO_OUTPUT, defined new format v4l2_audio_format > for audio case usage. > > The created audio device is named "/dev/v4l-audioX". > > Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx> > --- > .../userspace-api/media/v4l/buffer.rst | 6 ++ > .../media/v4l/dev-audio-mem2mem.rst | 71 +++++++++++++++++++ > .../userspace-api/media/v4l/devices.rst | 1 + > .../media/v4l/vidioc-enum-fmt.rst | 2 + > .../userspace-api/media/v4l/vidioc-g-fmt.rst | 4 ++ > .../media/videodev2.h.rst.exceptions | 2 + > .../media/common/videobuf2/videobuf2-v4l2.c | 4 ++ > drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 9 +++ > drivers/media/v4l2-core/v4l2-dev.c | 17 +++++ > drivers/media/v4l2-core/v4l2-ioctl.c | 53 ++++++++++++++ > include/media/v4l2-dev.h | 2 + > include/media/v4l2-ioctl.h | 34 +++++++++ > include/uapi/linux/videodev2.h | 17 +++++ > 13 files changed, 222 insertions(+) > create mode 100644 Documentation/userspace-api/media/v4l/dev-audio-mem2mem.rst For drivers/media/common/videobuf2: Acked-by: Tomasz Figa <tfiga@xxxxxxxxxxxx> Best regards, Tomasz
