| /linux-6.12.1/Documentation/userspace-api/ |
| D | dma-buf-alloc-exchange.rst | 1 .. SPDX-License-Identifier: GPL-2.0
2 .. Copyright 2021-2023 Collabora Ltd.
5 Exchanging pixel buffers
9 support for sharing pixel-buffer allocations between processes, devices, and
12 approach this sharing for two-dimensional image data.
25 Conceptually a two-dimensional array of pixels. The pixels may be stored
26 in one or more memory buffers. Has width and height in pixels, pixel
27 format and modifier (implicit or explicit).
30 A span along a single y-axis value, e.g. from co-ordinates (0,100) to
37 A span along a single x-axis value, e.g. from co-ordinates (100,0) to
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| /linux-6.12.1/Documentation/fb/ |
| D | api.rst | 9 ---------------
12 with frame buffer devices. In-kernel APIs between device drivers and the frame
22 ---------------
36 - FB_CAP_FOURCC
38 The driver supports the four character code (FOURCC) based format setting API.
44 --------------------
46 Pixels are stored in memory in hardware-dependent formats. Applications need
47 to be aware of the pixel storage format in order to write image data to the
48 frame buffer memory in the format expected by the hardware.
58 - FB_TYPE_PACKED_PIXELS
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| /linux-6.12.1/Documentation/gpu/amdgpu/display/ |
| D | dcn-overview.rst | 10 .. kernel-figure:: dc_pipeline_overview.svg
19 * **Display Pipe and Plane (DPP)**: This block provides pre-blend pixel
20 processing such as color space conversion, linearization of pixel data, tone
24 multiple planes, using global or per-pixel alpha.
26 * **Output Pixel Processing (OPP)**: Process and format pixels to be sent to
38 * **Multi-Media HUB (MMHUBBUB)**: Memory controller interface for DMCUB and DWB
43 the Display Micro-Controller Unit - version B (DMCUB), which is handled via
66 1. Pixel data interface (red): Represents the pixel data flow;
79 that HUBP accesses a surface using a specific format read from memory, and our
84 ----------------------
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| /linux-6.12.1/drivers/media/i2c/ccs/ |
| D | ccs-data.h | 1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
3 * CCS static data in-memory data structure definitions
5 * Copyright 2019--2020 Intel Corporation
16 * struct ccs_data_block_version - CCS static data version
32 * struct ccs_reg - CCS register value
33 * @addr: The 16-bit address of the register
44 * struct ccs_if_rule - CCS static data if rule
56 * struct ccs_frame_format_desc - CCS frame format descriptor
66 * struct ccs_frame_format_descs - A series of CCS frame format descriptors
80 * struct ccs_pdaf_readout - CCS PDAF data readout descriptor
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| /linux-6.12.1/drivers/staging/media/atomisp/include/linux/ |
| D | atomisp_platform.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
25 #include <media/v4l2-subdev.h>
62 ATOMISP_INPUT_FORMAT_RAW_6, /* RAW data, 6 bits per pixel */
63 ATOMISP_INPUT_FORMAT_RAW_7, /* RAW data, 7 bits per pixel */
64 ATOMISP_INPUT_FORMAT_RAW_8, /* RAW data, 8 bits per pixel */
65 ATOMISP_INPUT_FORMAT_RAW_10, /* RAW data, 10 bits per pixel */
66 ATOMISP_INPUT_FORMAT_RAW_12, /* RAW data, 12 bits per pixel */
67 ATOMISP_INPUT_FORMAT_RAW_14, /* RAW data, 14 bits per pixel */
68 ATOMISP_INPUT_FORMAT_RAW_16, /* RAW data, 16 bits per pixel */
71 /* CSI2-MIPI specific format: Generic short packet data. It is used to
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| /linux-6.12.1/Documentation/userspace-api/media/v4l/ |
| D | vidioc-enum-framesizes.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_ENUM_FRAMESIZES - Enumerate frame sizes
30 that contains an index and pixel format and receives a frame width
37 and height in pixels) that the device supports for the given pixel
38 format.
40 The supported pixel formats can be obtained by using the
47 - **Discrete:** The function returns success if the given index value
48 (zero-based) is valid. The application should increase the index by
54 - **Step-wise:** The function returns success if the given index value
60 - **Continuous:** This is a special case of the step-wise type above.
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| D | pixfmt-intro.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 V4L2 drivers are not limited to these formats, however. Driver-specific
16 data can still be stored and retrieved in the proprietary format. For
17 example, a device may support a proprietary compressed format.
19 format, saving much disk space, and later use a codec to convert the
20 images to the X Windows screen format when the video is to be displayed.
23 specification would not be complete without well-defined standard
29 leftmost pixel of the topmost row. Following that is the pixel
31 pixels. Following the rightmost pixel of the row there may be zero or
32 more bytes of padding to guarantee that each row of pixel data has a
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| D | vidioc-g-fbuf.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_FBUF - VIDIOC_S_FBUF - Get or set frame buffer overlay parameters
46 The V4L2 API distinguishes destructive and non-destructive overlays. A
48 of a graphics card. A non-destructive overlay blends video images into a
50 always non-destructive.
81 .. flat-table:: struct v4l2_framebuffer
82 :header-rows: 0
83 :stub-columns: 0
86 * - __u32
87 - ``capability``
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| D | pixfmt-compressed.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
8 .. _compressed-formats:
18 .. flat-table:: Compressed Image Formats
19 :header-rows: 1
20 :stub-columns: 0
23 * - Identifier
24 - Code
25 - Details
26 * .. _V4L2-PIX-FMT-JPEG:
28 - ``V4L2_PIX_FMT_JPEG``
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| D | dev-stateless-decoder.rst | 1 .. SPDX-License-Identifier: GPL-2.0
6 Memory-to-memory Stateless Video Decoder Interface
18 This section describes how user-space ("the client") is expected to communicate
24 Stateless decoders make use of the :ref:`media-request-api`. A stateless
42 irrespective of the format currently set on the ``CAPTURE`` queue.
45 codec-specific capability controls (such as H.264 profiles) to the set
51 * The driver must return only the formats supported for the format currently
54 * Depending on the currently set ``OUTPUT`` format, the set of supported raw
55 formats may depend on the value of some codec-dependent controls.
62 resolutions for a given format, passing desired pixel format in
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| D | dev-encoder.rst | 1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
6 Memory-to-Memory Stateful Video Encoder Interface
12 further post-processing by the client.
34 5. Single-planar API (see :ref:`planar-apis`) and applicable structures may be
35 used interchangeably with multi-planar API, unless specified otherwise,
47 Refer to :ref:`decoder-glossary`.
52 .. kernel-render:: DOT
65 qi -> Initialization [ label = "open()" ];
67 Initialization -> Encoding [ label = "Both queues streaming" ];
69 Encoding -> Drain [ label = "V4L2_ENC_CMD_STOP" ];
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| D | fourcc.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 Guidelines for Video4Linux pixel format 4CCs
8 the pixel format, compression and colour space. The interpretation of the
14 ---------
18 - B: raw bayer, uncompressed
19 - b: raw bayer, DPCM compressed
20 - a: A-law compressed
21 - u: u-law compressed
23 2nd character: pixel order
25 - B: BGGR
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| D | pixfmt-v4l2.rst | 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 Single-planar format structure
13 .. flat-table:: struct v4l2_pix_format
14 :header-rows: 0
15 :stub-columns: 0
18 * - __u32
19 - ``width``
20 - Image width in pixels.
21 * - __u32
22 - ``height``
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| /linux-6.12.1/drivers/gpu/drm/ |
| D | drm_fourcc.c | 4 * DRM core format related functions
34 * drm_mode_legacy_fb_format - compute drm fourcc code from legacy description
36 * @depth: bit depth per pixel
38 * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
109 * drm_driver_legacy_fb_format - compute drm fourcc code from legacy description
112 * @depth: bit depth per pixel
114 * Computes a drm fourcc pixel format code for the given @bpp/@depth values.
124 if (dev->mode_config.quirk_addfb_prefer_host_byte_order) { in drm_driver_legacy_fb_format()
135 if (dev->mode_config.quirk_addfb_prefer_xbgr_30bpp && in drm_driver_legacy_fb_format()
144 * Internal function to query information for a given format. See
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| /linux-6.12.1/include/drm/ |
| D | drm_fourcc.h | 30 * DRM_FORMAT_MAX_PLANES - maximum number of planes a DRM format can have
39 * case the format can't be specified otherwise, so we don't end up
40 * with two values describing the same format.
60 * struct drm_format_info - information about a DRM format
63 /** @format: 4CC format identifier (DRM_FORMAT_*) */
64 u32 format; member
69 * Color depth (number of bits per pixel excluding padding bits),
82 * Number of bytes per pixel (per plane), this is aliased with
85 * describing the pixel format.
97 * formats for which the memory needed for a single pixel is not
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| /linux-6.12.1/drivers/media/test-drivers/vimc/ |
| D | vimc-debayer.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * vimc-debayer.c Virtual Media Controller Driver
5 * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
11 #include <linux/v4l2-mediabus.h>
12 #include <media/v4l2-ctrls.h>
13 #include <media/v4l2-event.h>
14 #include <media/v4l2-subdev.h>
16 #include "vimc-common.h"
173 mf->code = VIMC_DEBAYER_SOURCE_MBUS_FMT; in vimc_debayer_init_state()
182 if (VIMC_IS_SRC(code->pad)) { in vimc_debayer_enum_mbus_code()
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| D | vimc-common.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * vimc-common.h Virtual Media Controller Driver
5 * Copyright (C) 2015-2017 Helen Koike <helen.fornazier@gmail.com>
13 #include <media/media-device.h>
14 #include <media/v4l2-device.h>
18 /* VIMC-specific controls */
46 * vimc_colorimetry_clamp - Adjust colorimetry parameters
56 if ((fmt)->colorspace == V4L2_COLORSPACE_DEFAULT \
57 || (fmt)->colorspace > V4L2_COLORSPACE_DCI_P3) { \
58 (fmt)->colorspace = V4L2_COLORSPACE_DEFAULT; \
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| /linux-6.12.1/drivers/media/platform/ti/omap3isp/ |
| D | ispvideo.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
5 * TI OMAP3 ISP - Generic video node
7 * Copyright (C) 2009-2010 Nokia Corporation
16 #include <linux/v4l2-mediabus.h>
17 #include <media/media-entity.h>
18 #include <media/v4l2-dev.h>
19 #include <media/v4l2-fh.h>
20 #include <media/videobuf2-v4l2.h>
31 * struct isp_format_info - ISP media bus format information
32 * @code: V4L2 media bus format code
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| /linux-6.12.1/drivers/media/platform/ti/am437x/ |
| D | am437x-vpfe.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
12 #include <linux/am437x-vpfe.h>
20 #include <media/v4l2-dev.h>
21 #include <media/v4l2-device.h>
22 #include <media/v4l2-ioctl.h>
23 #include <media/videobuf2-v4l2.h>
24 #include <media/videobuf2-dma-contig.h>
26 #include "am437x-vpfe_regs.h"
36 /* BT656 - 8 bit */
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| /linux-6.12.1/drivers/media/platform/qcom/camss/ |
| D | camss-format.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * camss-format.c
5 * Qualcomm MSM Camera Subsystem - Format helpers
13 #include "camss-format.h"
16 * camss_format_get_bpp - Map media bus format to bits per pixel
19 * @code: media bus format code
21 * Return number of bits per pixel
31 WARN(1, "Unknown format\n"); in camss_format_get_bpp()
37 * camss_format_find_code - Find a format code in an array
38 * @code: a pointer to media bus format codes array
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| D | camss-format.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
3 * camss-format.h
5 * Qualcomm MSM Camera Subsystem - Format helpers
23 * struct fract - Represents a fraction
33 * struct camss_format_info - ISP media bus format information
34 * @code: V4L2 media bus format code
35 * @mbus_bpp: Media bus bits per pixel
36 * @pixelformat: V4L2 pixel format FCC identifier
40 * @bpp: Bits per pixel when stored in memory (for each plane)
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| /linux-6.12.1/drivers/staging/media/atomisp/pci/runtime/frame/src/ |
| D | frame.c | 1 // SPDX-License-Identifier: GPL-2.0
72 enum ia_css_frame_format format,
78 enum ia_css_frame_format format,
97 return -EINVAL; in ia_css_frame_allocate_from_info()
101 ia_css_frame_allocate(frame, info->res.width, info->res.height, in ia_css_frame_allocate_from_info()
102 info->format, info->padded_width, in ia_css_frame_allocate_from_info()
103 info->raw_bit_depth); in ia_css_frame_allocate_from_info()
112 enum ia_css_frame_format format, in ia_css_frame_allocate() argument
119 return -EINVAL; in ia_css_frame_allocate()
122 …"ia_css_frame_allocate() enter: width=%d, height=%d, format=%d, padded_width=%d, raw_bit_depth=%d\… in ia_css_frame_allocate()
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| /linux-6.12.1/drivers/media/platform/samsung/s3c-camif/ |
| D | camif-core.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
20 #include <media/media-entity.h>
21 #include <media/v4l2-ctrls.h>
22 #include <media/v4l2-dev.h>
23 #include <media/v4l2-device.h>
24 #include <media/v4l2-mediabus.h>
25 #include <media/videobuf2-v4l2.h>
26 #include <media/drv-intf/s3c_camif.h>
28 #define S3C_CAMIF_DRIVER_NAME "s3c-camif"
39 #define S3C2450_CAMIF_IP_REV 0x30 /* 3.0 - not implemented, not tested */
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| /linux-6.12.1/drivers/gpu/drm/meson/ |
| D | meson_osd_afbcd.c | 1 // SPDX-License-Identifier: GPL-2.0+
30 * - basic AFBC buffer for RGB32 only, thus YTR feature is mandatory
31 * - SPARSE layout and SPLIT layout
32 * - only 16x16 superblock
35 * decoded pixel stream to the OSD1 Plane pixel composer.
43 * - basic AFBC buffer for multiple RGB and YUV pixel formats
44 * - SPARSE layout and SPLIT layout
45 * - 16x16 and 32x8 "wideblk" superblocks
46 * - Tiled header
48 * The ARM AFBC Decoder independent from the VPU Pixel Pipeline, so
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| /linux-6.12.1/drivers/staging/media/omap4iss/ |
| D | iss_video.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * TI OMAP4 ISS V4L2 Driver - Generic video node
13 #include <linux/v4l2-mediabus.h>
14 #include <media/media-entity.h>
15 #include <media/v4l2-dev.h>
16 #include <media/v4l2-fh.h>
17 #include <media/videobuf2-v4l2.h>
18 #include <media/videobuf2-dma-contig.h>
28 * struct iss_format_info - ISS media bus format information
29 * @code: V4L2 media bus format code
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