On 03/25/2016 11:43 AM, Laurent Pinchart wrote:
> Add composer, format converter and scaler functions, as well as generic
> video processing to be used when no other processing function is
> applicable.
>
> Signed-off-by: Laurent Pinchart <[email protected]>
> ---
> Documentation/DocBook/media/v4l/media-types.xml | 34
> +++++++++++++++++++++++++
> include/uapi/linux/media.h | 8 ++++++
> 2 files changed, 42 insertions(+)
>
> diff --git a/Documentation/DocBook/media/v4l/media-types.xml
> b/Documentation/DocBook/media/v4l/media-types.xml
> index 5e3f20fdcf17..a6e171e80bce 100644
> --- a/Documentation/DocBook/media/v4l/media-types.xml
> +++ b/Documentation/DocBook/media/v4l/media-types.xml
> @@ -121,6 +121,40 @@
> <entry><constant>MEDIA_ENT_F_AUDIO_MIXER</constant></entry>
> <entry>Audio Mixer Function Entity.</entry>
> </row>
> + <row>
> + <entry><constant>MEDIA_ENT_F_PROC_VIDEO_GENERIC</constant></entry>
> + <entry>Generic video processing, when no other processing function
> + is applicable.
> + </entry>
Does someone in this patch series use this one? If not, then just drop it. And
if there is one, which patch is it?
> + <row>
> + <entry><constant>MEDIA_ENT_F_PROC_VIDEO_COMPOSER</constant></entry>
> + <entry>Video composer (blender). An entity capable of video
> + composing must have at least two sink pads and one source
> + pad, and composes input video frames onto output video
> + frames. Composition can be performed using alpha blending,
> + color keying, raster operations (ROP), stitching or any other
> + mean.
s/mean/means/
> + </entry>
> + </row>
> + </row>
> + <entry><constant>MEDIA_ENT_F_PROC_VIDEO_CONVERTER</constant></entry>
> + <entry>Video format converter. An entity capable of video format
> + conversion must have at least one sink pad and one source
> + pad, and convert the format of pixels received on its sink
> + pad(s) to a different format output on its source pad(s).
> + </entry>
Does this cover a de-interlacer?
> + </row>
> + <row>
> + <entry><constant>MEDIA_ENT_F_PROC_VIDEO_SCALER</constant></entry>
> + <entry>Video scaler. An entity capable of video scaling must have
> + at least one sink pad and one source pad, and scaling the
> + video frame(s) received on its sink pad(s) to a different
> + resolution output on its source pad(s). The range of
> + supported scaling ratios is entity-specific and can differ
> + between the horizontal and vertical directions. In particular
> + scaling can be supported in one direction only.
> + </entry>
> + </row>
> </tbody>
> </tgroup>
> </table>
Regards,
Hans
> diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
> index df59edee25d1..884ec1cae09d 100644
> --- a/include/uapi/linux/media.h
> +++ b/include/uapi/linux/media.h
> @@ -95,6 +95,14 @@ struct media_device_info {
> #define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0x03003)
>
> /*
> + * Processing entities
> + */
> +#define MEDIA_ENT_F_PROC_VIDEO_GENERIC (MEDIA_ENT_F_BASE +
> 0x4001)
> +#define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE +
> 0x4002)
> +#define MEDIA_ENT_F_PROC_VIDEO_CONVERTER (MEDIA_ENT_F_BASE + 0x4003)
> +#define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE +
> 0x4004)
> +
> +/*
> * Connectors
> */
> /* It is a responsibility of the entity drivers to add connectors and links
> */
>
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