From 1179aab13db3c6251484afe492c8dbd869ca8b05 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 15 Feb 2016 22:00:30 -0200 Subject: [media] media: Add video processing entity functions Add composer, pixel formatter, pixel encoding converter and scaler functions. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/media-types.xml | 55 +++++++++++++++++++++++++ 1 file changed, 55 insertions(+) (limited to 'Documentation/DocBook/media') 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 @@ MEDIA_ENT_F_AUDIO_MIXER Audio Mixer Function Entity. + + MEDIA_ENT_F_PROC_VIDEO_COMPOSER + 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. + + + + MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER + 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. + + + + MEDIA_ENT_F_PROC_VIDEO_PIXEL_ENC_CONV + 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. + + + + MEDIA_ENT_F_PROC_VIDEO_LUT + 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. + + + + MEDIA_ENT_F_PROC_VIDEO_SCALER + 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. + + -- cgit v1.2.3 From eaa0b96bbb6586a95e66d3dedd974313d7b0d94f Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Tue, 1 Mar 2016 21:12:27 -0300 Subject: [media] media: Add video statistics computation functions The video statistics function describes entities such as video histogram engines or 3A statistics engines. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/media-types.xml | 9 +++++++++ include/uapi/linux/media.h | 1 + 2 files changed, 10 insertions(+) (limited to 'Documentation/DocBook/media') diff --git a/Documentation/DocBook/media/v4l/media-types.xml b/Documentation/DocBook/media/v4l/media-types.xml index 60fe841f8846..95aa1f9c836a 100644 --- a/Documentation/DocBook/media/v4l/media-types.xml +++ b/Documentation/DocBook/media/v4l/media-types.xml @@ -176,6 +176,15 @@ skipping are considered as scaling. + + MEDIA_ENT_F_PROC_VIDEO_STATISTICS + Video statistics computation (histogram, 3A, ...). An entity + capable of statistics computation must have one sink pad and + one source pad. It computes statistics over the frames + received on its sink pad and outputs the statistics data on + its source pad. + + diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h index 3136686c4bd0..7acf0f634f70 100644 --- a/include/uapi/linux/media.h +++ b/include/uapi/linux/media.h @@ -102,6 +102,7 @@ struct media_device_info { #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) +#define MEDIA_ENT_F_PROC_VIDEO_STATISTICS (MEDIA_ENT_F_BASE + 0x4006) /* * Connectors -- cgit v1.2.3