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 <laurent.pinchart+rene...@ideasonboard.com>
---
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>
+ <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.
+ </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>
+ </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>
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 */
--
2.7.3
