linux-kernel - Re: [PATCH v12 07/15] media: v4l2: Add audio capture and output support

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Date: Wed, 21 Feb 2024 13:32:50 +0900
From: Tomasz Figa <tfiga@...omium.org>
To: Shengjiu Wang <shengjiu.wang@....com>
Cc: hverkuil@...all.nl, sakari.ailus@....fi, m.szyprowski@...sung.com, 
	mchehab@...nel.org, linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
	shengjiu.wang@...il.com, Xiubo.Lee@...il.com, festevam@...il.com, 
	nicoleotsuka@...il.com, lgirdwood@...il.com, broonie@...nel.org, 
	perex@...ex.cz, tiwai@...e.com, alsa-devel@...a-project.org, 
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v12 07/15] media: v4l2: Add audio capture and output support

On Thu, Jan 18, 2024 at 10:15 PM Shengjiu Wang <shengjiu.wang@....com> 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@....com>
> ---
>  .../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@...omium.org>

Best regards,
Tomasz