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/linux/Documentation/userspace-api/media/v4l/
H A Dext-ctrls-codec.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _codec-controls:
24 .. _mpeg-control-id:
27 -----------------
35 .. _v4l2-mpeg-stream-type:
40 enum v4l2_mpeg_stream_type -
41 The MPEG-1, -2 or -4 output stream type. One cannot assume anything
42 here. Each hardware MPEG encoder tends to support different subsets
48 .. flat-table::
49 :header-rows: 0
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H A Dpixfmt-compressed.rst1 .. 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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H A Ddev-encoder.rst1 .. SPDX-License-Identifier: GPL-2.0 OR GFDL-1.1-no-invariants-or-later
6 Memory-to-Memory Stateful Video Encoder Interface
9 A stateful video encoder takes raw video frames in display order and encodes
12 further post-processing by the client.
16 operations are needed, use of the Stateless Video Encoder Interface (in
34 5. Single-planar API (see :ref:`planar-apis`) and applicable structures may be
35 used interchangeably with multi-planar API, unless specified otherwise,
36 depending on encoder capabilities and following the general V4L2 guidelines.
47 Refer to :ref:`decoder-glossary`.
52 .. kernel-render:: DOT
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H A Dvidioc-g-parm.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_G_PARM - VIDIOC_S_PARM - Get or set streaming parameters
43 For stateful encoders (see :ref:`encoder`) this represents the
44 frame interval that is typically embedded in the encoded video stream.
63 .. flat-table:: struct v4l2_streamparm
64 :header-rows: 0
65 :stub-columns: 0
68 * - __u32
69 - ``type``
70 - The buffer (stream) type, same as struct
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/linux/Documentation/devicetree/bindings/media/
H A Dqcom,sdm660-venus.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/qcom,sdm660-venus.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm SDM660 Venus video encode and decode accelerators
10 - Stanimir Varbanov <stanimir.varbanov@linaro.org>
11 - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
14 The Venus IP is a video encode and decode accelerator present
18 - $ref: qcom,venus-common.yaml#
22 const: qcom,sdm660-venus
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H A Dqcom,msm8996-venus.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/qcom,msm8996-venus.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm MSM8996 Venus video encode and decode accelerators
10 - Stanimir Varbanov <stanimir.varbanov@linaro.org>
13 The Venus IP is a video encode and decode accelerator present
17 - $ref: qcom,venus-common.yaml#
22 - qcom,msm8996-venus
23 - qcom,msm8998-venus
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H A Dst,stm32mp25-video-codec.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/media/st,stm32mp25-video-codec.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32MP25 VDEC video decoder & VENC video encoder
10 - Hugues Fruchet <hugues.fruchet@foss.st.com>
13 The STMicroelectronics STM32MP25 SOCs embeds a VDEC video hardware
15 and a VENC video hardware encoder peripheral based on Verisilicon
21 - st,stm32mp25-vdec
22 - st,stm32mp25-venc
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/linux/drivers/media/i2c/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # Multimedia Video device configuration
8 comment "IR I2C driver auto-selected by 'Autoselect ancillary drivers'"
17 some video boards have the IR connected via I2C bus.
45 tristate "Allied Vision ALVIUM MIPI CSI-2 camera support"
48 This is a Video4Linux2 sensor-level driver for the Allied Vision
49 ALVIUM camera connected via MIPI CSI-2 interface.
52 module will be called alvium-csi2.
97 This is a V4L2 sensor-level driver for GalaxyCore GC2145
104 tristate "Hynix Hi-556 sensor support"
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H A Dbt856.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * bt856 - BT856A Digital Video Encoder (Rockwell Part)
15 * - moved over to linux>=2.4.x i2c protocol (9/9/2002)
25 #include <media/v4l2-device.h>
27 MODULE_DESCRIPTION("Brooktree-856A video encoder driver");
33 MODULE_PARM_DESC(debug, "Debug level (0-1)");
36 /* ----------------------------------------------------------------------- */
53 /* ----------------------------------------------------------------------- */
55 static inline int bt856_write(struct bt856 *encoder, u8 reg, u8 value) in bt856_write() argument
57 struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd); in bt856_write()
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H A Dbt866.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 bt866 - BT866 Digital Video Encoder (Rockwell Part)
26 #include <media/v4l2-device.h>
28 MODULE_DESCRIPTION("Brooktree-866 video encoder driver");
34 MODULE_PARM_DESC(debug, "Debug level (0-1)");
37 /* ----------------------------------------------------------------------- */
49 static int bt866_write(struct bt866 *encoder, u8 subaddr, u8 data) in bt866_write() argument
51 struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd); in bt866_write()
58 encoder->reg[subaddr] = data; in bt866_write()
72 return -1; in bt866_write()
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/linux/Documentation/devicetree/bindings/display/ti/
H A Dti,omap-dss.txt5 -------------------
12 a number of encoder modules. All DSS versions contain DSS Core and DISPC, but
13 the encoder modules vary.
21 The encoder modules encode the received RGB pixel stream to a video output like
24 Video Ports
25 -----------
27 The DSS Core and the encoders have video port outputs. The structure of the
28 video ports is described in Documentation/devicetree/bindings/graph.txt,
29 and the properties for the ports and endpoints for each encoder are
32 The video ports are used to describe the connections to external hardware, like
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/linux/drivers/media/platform/st/sti/hva/
H A Dhva.h1 /* SPDX-License-Identifier: GPL-2.0 */
11 #include <media/v4l2-ctrls.h>
12 #include <media/v4l2-device.h>
13 #include <media/videobuf2-v4l2.h>
14 #include <media/v4l2-mem2mem.h>
18 #define hva_to_dev(h) (h->dev)
20 #define ctx_to_dev(c) (c->hva_dev->dev)
22 #define ctx_to_hdev(c) (c->hva_dev)
24 #define HVA_NAME "st-hva"
25 #define HVA_PREFIX "[---:----]"
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H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "STMicroelectronics HVA multi-format video encoder V4L2 driver"
10 This V4L2 driver enables HVA (Hardware Video Accelerator) multi-format
11 video encoder of STMicroelectronics SoC, allowing hardware encoding of
12 raw uncompressed formats in various compressed video bitstreams format.
15 the module will be called st-hva.
23 operation of STMicroelectronics HVA multi-format video encoder in
/linux/drivers/media/platform/mediatek/vpu/
H A Dmtk_vpu.h1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Author: Andrew-CT Chen <andrew-ct.chen@mediatek.com>
15 * VPU (video processor unit) is a tiny processor controlling video hardware
16 * related to video codec, scaling and color format converting.
25 * enum ipi_id - the id of inter-processor interrupt
39 * handle VP8 video decoder job, and vice versa.
43 * handle VP9 video decoder job, and vice versa.
47 * handle H264 video encoder job, and vice versa.
49 * handle VP8 video encoder job,, and vice versa.
67 * enum rst_id - reset id to register reset function for VPU watchdog timeout
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/linux/drivers/media/test-drivers/vidtv/
H A Dvidtv_encoder.h1 /* SPDX-License-Identifier: GPL-2.0 */
7 * This file contains a generic encoder type that can provide data for a stream
99 * struct vidtv_encoder - A generic encoder type.
102 * @encoder_buf: The encoder internal buffer for the access units.
103 * @encoder_buf_sz: The encoder buffer size, in bytes
104 * @encoder_buf_offset: Our byte position in the encoder buffer.
106 * @access_units: encoder payload units, used for clock references
107 * @src_buf: The source of raw data to be encoded, encoder might set a
111 * @is_video_encoder: Whether this a video encoder (as opposed to audio)
112 * @ctx: Encoder-specific state.
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H A Dvidtv_pes.h1 /* SPDX-License-Identifier: GPL-2.0 */
8 * from an encoder into MPEG TS packets. It does so by first encapsulating it
21 #define PES_MAX_LEN 65536 /* Set 'length' to 0 if greater. Only possible for video. */
76 * struct pes_header_write_args - Arguments to write a PES header.
80 * @encoder_id: Encoder id (see vidtv_encoder.h)
85 * @stream_id: The stream id to use. Ex: Audio streams (0xc0-0xdf), Video
86 * streams (0xe0-0xef).
87 * @n_pes_h_s_bytes: Padding bytes. Might be used by an encoder if needed, gets
104 /* might be used by an encoder if needed, gets discarded by decoder */
110 * struct pes_ts_header_write_args - Arguments to write a TS header.
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/linux/Documentation/admin-guide/media/
H A Dpci-cardlist.rst1 .. SPDX-License-Identifier: GPL-2.0
9 - Vendor ID and device ID;
10 - Subsystem ID and Subsystem device ID;
12 The ``lspci -nn`` command allows identifying the vendor/device PCI IDs:
14 .. code-block:: none
15 :emphasize-lines: 3
17 $ lspci -nn
19 …00:0a.0 Multimedia controller [0480]: Philips Semiconductors SAA7131/SAA7133/SAA7135 Video Broadca…
21 …01:00.0 Multimedia video controller [0400]: Conexant Systems, Inc. CX23887/8 PCIe Broadcast Audio …
22 …02:01.0 Multimedia video controller [0400]: Internext Compression Inc iTVC15 (CX23415) Video Decod…
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H A Di2c-cardlist.rst1 .. SPDX-License-Identifier: GPL-2.0
6 The I²C (Inter-Integrated Circuit) bus is a three-wires bus used internally
23 -------------------------------------
32 sony-btf-mpx Sony BTF's internal MPX
46 Audio/Video compression chips
47 -----------------------------
52 saa6752hs Philips SAA6752HS MPEG-2 Audio/Video Encoder
56 ---------------------
63 hi556 Hynix Hi-556 sensor
64 hi846 Hynix Hi-846 sensor
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/linux/drivers/gpu/drm/rockchip/
H A Danalogix_dp-rockchip.c1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Author: Andy Yan <andy.yan@rock-chips.com>
7 * Yakir Yang <ykk@rock-chips.com>
8 * Jeff Chen <jeff.chen@rock-chips.com>
21 #include <video/of_videomode.h>
22 #include <video/videomode.h>
45 * struct rockchip_dp_chip_data - splite the grf setting of kind of chips
61 struct rockchip_encoder encoder; member
75 static struct rockchip_dp_device *encoder_to_dp(struct drm_encoder *encoder) in encoder_to_dp() argument
77 struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder); in encoder_to_dp()
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H A Dcdn-dp-core.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Author: Chris Zhong <zyw@rock-chips.com>
16 #include <sound/hdmi-codec.h>
25 #include "cdn-dp-core.h"
26 #include "cdn-dp-reg.h"
33 static inline struct cdn_dp_device *encoder_to_dp(struct drm_encoder *encoder) in encoder_to_dp() argument
35 struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder); in encoder_to_dp()
37 return container_of(rkencoder, struct cdn_dp_device, encoder); in encoder_to_dp()
61 { .compatible = "rockchip,rk3399-cdn-dp",
73 ret = clk_prepare_enable(dp->grf_clk); in cdn_dp_grf_write()
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H A Drk3066_hdmi.c1 // SPDX-License-Identifier: GPL-2.0
4 * Zheng Yang <zhengyang@rock-chips.com>
25 int vic; /* The CEA Video ID (VIC) of the current drm display mode. */
50 struct rockchip_encoder encoder; member
60 static struct rk3066_hdmi *encoder_to_rk3066_hdmi(struct drm_encoder *encoder) in encoder_to_rk3066_hdmi() argument
62 struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder); in encoder_to_rk3066_hdmi()
64 return container_of(rkencoder, struct rk3066_hdmi, encoder); in encoder_to_rk3066_hdmi()
74 return readl_relaxed(hdmi->regs + offset); in hdmi_readb()
79 writel_relaxed(val, hdmi->regs + offset); in hdmi_writeb()
95 ddc_bus_freq = (hdmi->tmdsclk >> 2) / HDMI_SCL_RATE; in rk3066_hdmi_i2c_init()
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/linux/Documentation/driver-api/media/drivers/
H A Dzoran.rst1 .. SPDX-License-Identifier: GPL-2.0
8 website: http://mjpeg.sourceforge.net/driver-zoran/
12 --------------------------
15 ------------------------
26 * Philips saa7185 TV encoder
28 Drivers to use: videodev, i2c-core, i2c-algo-bit,
31 Inputs/outputs: Composite and S-video
43 * Conexant bt866 TV encoder
45 Drivers to use: videodev, i2c-core, i2c-algo-bit,
49 Six physical inputs. 1-6 are composite,
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/linux/drivers/gpu/drm/meson/
H A Dmeson_venc.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
8 * Video Encoders
9 * - ENCI : Interlace Video Encoder
10 * - ENCI_DVI : Interlace Video Encoder for DVI/HDMI
11 * - ENCP : Progressive Video Encoder
51 /* LCD Encoder gamma setup */
/linux/drivers/gpu/drm/exynos/
H A Dexynos_dp.c1 // SPDX-License-Identifier: GPL-2.0-or-later
17 #include <video/of_display_timing.h>
18 #include <video/of_videomode.h>
19 #include <video/videomode.h>
37 struct drm_encoder encoder; member
52 struct drm_encoder *encoder = &dp->encoder; in exynos_dp_crtc_clock_enable() local
54 if (!encoder->crtc) in exynos_dp_crtc_clock_enable()
55 return -EPERM; in exynos_dp_crtc_clock_enable()
57 exynos_drm_pipe_clk_enable(to_exynos_crtc(encoder->crtc), enable); in exynos_dp_crtc_clock_enable()
78 if (dp->plat_data.panel) in exynos_dp_get_modes()
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/linux/Documentation/devicetree/bindings/display/
H A Damlogic,meson-vpu.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/display/amlogic,meson-vpu.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Neil Armstrong <neil.armstrong@linaro.org>
17 DMC|---------------VPU (Video Processing Unit)----------------|------HHI------|
19 D |-------| |----| | | | | HDMI PLL |
20 D | vd2 | VIU | | Video Post | | Video Encoders |<---|-----VCLK |
21 R |-------| |----| Processing | | | | |
22 | osd2 | | | |---| Enci ----------|----|-----VDAC------|
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