From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
To: linux-media@vger.kernel.org
Cc: Sakari Ailus <sakari.ailus@iki.fi>, Hans Verkuil <hverkuil@xs4all.nl>
Subject: [PATCH v4 1/6] media: Add video processing entity functions
Date: Fri, 20 May 2016 02:40:27 +0300 [thread overview]
Message-ID: <1463701232-22008-2-git-send-email-laurent.pinchart+renesas@ideasonboard.com> (raw)
In-Reply-To: <1463701232-22008-1-git-send-email-laurent.pinchart+renesas@ideasonboard.com>
Add composer, pixel formatter, pixel encoding converter and scaler
functions.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
Documentation/DocBook/media/v4l/media-types.xml | 55 +++++++++++++++++++++++++
include/uapi/linux/media.h | 9 ++++
2 files changed, 64 insertions(+)
diff --git a/Documentation/DocBook/media/v4l/media-types.xml b/Documentation/DocBook/media/v4l/media-types.xml
index 5e3f20fdcf17..60fe841f8846 100644
--- a/Documentation/DocBook/media/v4l/media-types.xml
+++ b/Documentation/DocBook/media/v4l/media-types.xml
@@ -121,6 +121,61 @@
<entry><constant>MEDIA_ENT_F_AUDIO_MIXER</constant></entry>
<entry>Audio Mixer Function Entity.</entry>
</row>
+ <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
+ means.
+ </entry>
+ </row>
+ <row>
+ <entry><constant>MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER</constant></entry>
+ <entry>Video pixel formatter. An entity capable of pixel formatting
+ must have at least one sink pad and one source pad. Read
+ pixel formatters read pixels from memory and perform a subset
+ of unpacking, cropping, color keying, alpha multiplication
+ and pixel encoding conversion. Write pixel formatters perform
+ a subset of dithering, pixel encoding conversion and packing
+ and write pixels to memory.
+ </entry>
+ </row>
+ <row>
+ <entry><constant>MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV</constant></entry>
+ <entry>Video pixel encoding converter. An entity capable of pixel
+ enconding conversion must have at least one sink pad and one
+ source pad, and convert the encoding of pixels received on
+ its sink pad(s) to a different encoding output on its source
+ pad(s). Pixel encoding conversion includes but isn't limited
+ to RGB to/from HSV, RGB to/from YUV and CFA (Bayer) to RGB
+ conversions.
+ </entry>
+ </row>
+ <row>
+ <entry><constant>MEDIA_ENT_F_PROC_VIDEO_LUT</constant></entry>
+ <entry>Video look-up table. An entity capable of video lookup table
+ processing must have one sink pad and one source pad. It uses
+ the values of the pixels received on its sink pad to look up
+ entries in internal tables and output them on its source pad.
+ The lookup processing can be performed on all components
+ separately or combine them for multi-dimensional table
+ lookups.
+ </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 scale 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). Binning and
+ skipping are considered as scaling.
+ </entry>
+ </row>
</tbody>
</tgroup>
</table>
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index e226bc35c639..bff3ffdfd55f 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -96,6 +96,15 @@ struct media_device_info {
#define MEDIA_ENT_F_AUDIO_MIXER (MEDIA_ENT_F_BASE + 0x03003)
/*
+ * Processing entities
+ */
+#define MEDIA_ENT_F_PROC_VIDEO_COMPOSER (MEDIA_ENT_F_BASE + 0x4001)
+#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER (MEDIA_ENT_F_BASE + 0x4002)
+#define MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV (MEDIA_ENT_F_BASE + 0x4003)
+#define MEDIA_ENT_F_PROC_VIDEO_LUT (MEDIA_ENT_F_BASE + 0x4004)
+#define MEDIA_ENT_F_PROC_VIDEO_SCALER (MEDIA_ENT_F_BASE + 0x4005)
+
+/*
* Connectors
*/
/* It is a responsibility of the entity drivers to add connectors and links */
--
2.7.3
next prev parent reply other threads:[~2016-05-19 23:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-19 23:40 [PATCH v4 0/6] R-Car VSP: Add and set media entities functions Laurent Pinchart
2016-05-19 23:40 ` Laurent Pinchart [this message]
2016-05-23 9:06 ` [PATCH v4 1/6] media: Add video processing entity functions Hans Verkuil
2016-05-19 23:40 ` [PATCH v4 2/6] media: Add video statistics computation functions Laurent Pinchart
2016-05-23 9:10 ` Hans Verkuil
2016-05-19 23:40 ` [PATCH v4 3/6] v4l: vsp1: Base link creation on availability of entities Laurent Pinchart
2016-05-19 23:40 ` [PATCH v4 4/6] v4l: vsp1: Don't register media device when userspace API is disabled Laurent Pinchart
2016-05-19 23:40 ` [PATCH v4 5/6] v4l: vsp1: Don't create LIF entity when the userspace API is enabled Laurent Pinchart
2016-05-19 23:40 ` [PATCH v4 6/6] v4l: vsp1: Set entities functions Laurent Pinchart
2016-05-23 13:52 ` [PATCH v4 0/6] R-Car VSP: Add and set media " Sakari Ailus
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