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/linux/Documentation/userspace-api/media/v4l/
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-mem2mem.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
6 Video Memory-To-Memory Interface
9 A V4L2 memory-to-memory device can compress, decompress, transform, or
10 otherwise convert video data from one format into another format, in memory.
11 Such memory-to-memory devices set the ``V4L2_CAP_VIDEO_M2M`` or
12 ``V4L2_CAP_VIDEO_M2M_MPLANE`` capability. Examples of memory-to-memory
16 A memory-to-memory video node acts just like a normal video node, but it
23 Memory-to-memory devices function as a shared resource: you can
24 open the video node multiple times, each application setting up their
28 This is different from the usual video node behavior where the video
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H A Dcommon.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
10 - Opening the device
12 - Changing device properties, selecting a video and audio input, video
15 - Negotiating a data format
17 - Negotiating an input/output method
19 - The actual input/output loop
21 - Closing the device
34 app-pri
35 video
39 dv-timings
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H A Dext-ctrls-codec.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
3 .. _codec-controls:
6 Codec Control Reference
9 Below all controls within the Codec control class are described. First
20 Generic Codec Controls
24 .. _mpeg-control-id:
26 Codec Control IDs
27 -----------------
30 The Codec class descriptor. Calling
35 .. _v4l2-mpeg-stream-type:
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/linux/Documentation/admin-guide/media/
H A Dplatform-cardlist.rst1 .. SPDX-License-Identifier: GPL-2.0
17 am437x-vpfe TI AM437x VPFE
18 aspeed-video Aspeed AST2400 and AST2500
19 atmel-isc ATMEL Image Sensor Controller (ISC)
20 atmel-isi ATMEL Image Sensor Interface (ISI)
24 cdns-csi2rx Cadence MIPI-CSI2 RX Controller
25 cdns-csi2tx Cadence MIPI-CSI2 TX Controller
26 coda-vpu Chips&Media Coda multi-standard codec IP
27 dm355_ccdc TI DM355 CCDC video capture
28 dm644x_ccdc TI DM6446 CCDC video capture
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/linux/drivers/media/pci/zoran/
H A Dvideocodec.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * VIDEO MOTION CODECs internal API for video devices
5 * Interface for MJPEG (and maybe later MPEG/WAVELETS) codec's
16 * Should ease the (re-)usage of drivers supporting cards with (different)
17 * video codecs. The codecs register to this module their functionality,
20 * The codecs are typically have a "strong" binding to their master - so I
22 * i2c. If you have an other opinion, let's discuss & implement it :-)))
29 * The best is just calling them at module (de-)initialisation.
47 * ----------------------------------------------------------------------------
51 * ----------------------------------------------------------------------------
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H A Dzoran_device.c1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * This part handles device access (PCI/I2C/codec/...)
18 #include <linux/i2c-algo-bit.h>
20 #include <media/v4l2-common.h>
26 #include <linux/dma-mapping.h>
54 * initialize video front end
68 // || zr->revision < 1) // Revision 1 has also Triton support in zr36057_init_vfe()
90 * A bit number of -1 (lacking) gives a mask of 0, in GPIO()
114 if ((por & ZR36057_POR_PO_TIME) && !zr->card.gws_not_connected) { in post_office_wait()
116 pci_info(zr->pci_dev, "pop timeout %08x\n", por); in post_office_wait()
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H A Dzoran_card.c1 // SPDX-License-Identifier: GPL-2.0-or-later
7 * This part handles card-specific data and detection
18 #include <linux/i2c-algo-bit.h>
25 #include <media/v4l2-common.h>
38 static int card[BUZ_MAX] = { [0 ... (BUZ_MAX - 1)] = -1 };
42 /* Default input and video norm at startup of the driver. */
44 static unsigned int default_input; /* default 0 = Composite, 1 = S-Video */
47 "Default input (0=Composite, 1=S-Video, 2=Internal)");
58 /* /dev/videoN, -1 for autodetect */
59 static int video_nr[BUZ_MAX] = { [0 ... (BUZ_MAX - 1)] = -1 };
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H A Dvideocodec.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * VIDEO MOTION CODECs internal API for video devices
5 * Interface for MJPEG (and maybe later MPEG/WAVELETS) codec's
20 struct videocodec *codec; member
25 const struct videocodec *codec; member
42 struct videocodec *codec; in videocodec_attach() local
53 master->name, master->flags, master->magic); in videocodec_attach()
63 if ((master->flags & h->codec->flags) == master->flags) { in videocodec_attach()
64 zrdev_dbg(zr, "%s: try '%s'\n", __func__, h->codec->name); in videocodec_attach()
66 codec = kmemdup(h->codec, sizeof(struct videocodec), GFP_KERNEL); in videocodec_attach()
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H A Dzoran.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * zoran - Iomega Buz driver
13 * bttv - Bt848 frame grabber driver
14 * Copyright (C) 1996,97,98 Ralph Metzler (rjkm@thp.uni-koeln.de)
15 * & Marcus Metzler (mocm@thp.uni-koeln.de)
23 #include <linux/i2c-algo-bit.h>
24 #include <media/v4l2-device.h>
25 #include <media/v4l2-ctrls.h>
26 #include <media/videobuf2-core.h>
27 #include <media/videobuf2-v4l2.h>
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/linux/Documentation/devicetree/bindings/media/
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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H A Dallegro,al5e.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Allegro DVT Video IP Codecs
10 - Michael Tretter <m.tretter@pengutronix.de>
12 description: |-
13 Allegro DVT video IP codecs present in the Xilinx ZynqMP SoC. The IP core may
16 Each actual codec engine is controlled by a microcontroller (MCU). Host
23 - items:
24 - const: allegro,al5e-1.1
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H A Dcnm,wave521c.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Chips&Media Wave 5 Series multi-standard codec IP
10 - Nas Chung <nas.chung@chipsnmedia.com>
11 - Jackson Lee <jackson.lee@chipsnmedia.com>
14 The Chips&Media WAVE codec IP is a multi format video encoder/decoder
19 - enum:
20 - ti,j721s2-wave521c
21 - const: cnm,wave521c
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H A Dcoda.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Chips&Media Coda multi-standard codec IP
10 - Philipp Zabel <p.zabel@pengutronix.de>
12 description: |-
13 Coda codec IPs are present in i.MX SoCs in various versions,
14 called VPU (Video Processing Unit).
19 - items:
20 - const: fsl,imx27-vpu
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/linux/drivers/media/platform/amphion/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
6 tristate "Amphion VPU (Video Processing Unit) Codec IP"
16 Amphion VPU Codec IP contains two parts: Windsor and Malone.
18 that supports H.264, HEVC, and other video formats.
19 This is a V4L2 driver for NXP MXC 8Q video accelerator hardware.
/linux/drivers/media/platform/mediatek/vcodec/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
9 tristate "Mediatek Video Codec driver"
28 Mediatek video codec driver provides HW capability to
29 encode and decode in a range of video formats on MT8173
36 modules will be called mtk-vcodec-dec and mtk-vcodec-enc.
/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 ------------------------
24 * Zoran zr36060 MJPEG codec
28 Drivers to use: videodev, i2c-core, i2c-algo-bit,
31 Inputs/outputs: Composite and S-video
41 * Zoran zr36060 MJPEG codec
45 Drivers to use: videodev, i2c-core, i2c-algo-bit,
49 Six physical inputs. 1-6 are composite,
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/linux/drivers/media/platform/samsung/s3c-camif/
H A Dcamif-core.h1 /* 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/drivers/media/platform/chips-media/coda/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
4 tristate "Chips&Media Coda multi-standard codec IP"
14 Coda is a range of video codec IPs that supports
15 H.264, MPEG-4, and other video formats.
/linux/drivers/staging/vc04_services/vchiq-mmal/
H A Dmmal-msg-format.h1 /* SPDX-License-Identifier: GPL-2.0 */
19 #include "mmal-msg-common.h"
39 * FourCC specifying the color space of the video stream. See the
40 * MmalColorSpace "pre-defined color spaces" for some examples.
52 struct mmal_video_format video; member
78 u32 extradata_size; /* Size of the codec specific data */
79 u8 *extradata; /* Codec specific data */
104 u32 extradata_size; /* Size of the codec specific data */
105 u32 extradata; /* Codec specific data */
/linux/drivers/staging/media/sunxi/cedrus/
H A DTODO7 - platform, with resources management, interrupt handler, watchdog,
9 - proc, with video device registration and related operations;
10 - context, with m2m context, queue and controls management;
11 - engine, with each individual codec job execution and codec-specific
16 devices but exposing distinct video devices.
/linux/drivers/media/platform/mediatek/vcodec/decoder/
H A Dvdec_ipi_msg.h1 /* SPDX-License-Identifier: GPL-2.0 */
11 * enum vdec_ipi_msgid - message id between AP and VPU
36 * struct vdec_ap_ipi_cmd - generic AP to VPU ipi command format
40 * @codec_type : codec fourcc
54 * struct vdec_vpu_ipi_ack - generic VPU to AP ipi command format
57 * @ap_inst_addr : AP video decoder instance address
66 * struct vdec_ap_ipi_init - for AP_IPIMSG_DEC_INIT
68 * @codec_type : codec fourcc
69 * @ap_inst_addr : AP video decoder instance address
78 * struct vdec_ap_ipi_dec_start - for AP_IPIMSG_DEC_START
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/linux/sound/pci/hda/
H A Dhda_eld.c1 // SPDX-License-Identifier: GPL-2.0-or-later
36 "2-reserved",
37 "3-reserved"
74 /* 2 */ "AC-3",
78 /* 6 */ "AAC-LC",
82 /* 10 */ "E-AC-3/DD+ (Dolby Digital Plus)",
83 /* 11 */ "DTS-HD",
87 /* 15 */ "HE-AAC",
88 /* 16 */ "HE-AACv2",
94 * - HDMI audio InfoFrame (source to sink)
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/linux/drivers/media/usb/hdpvr/
H A Dhdpvr-control.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Hauppauge HD PVR USB driver - video 4 linux 2 interface
18 #include <media/v4l2-common.h>
28 mutex_lock(&dev->usbc_mutex); in hdpvr_config_call()
29 dev->usbc_buf[0] = valbuf; in hdpvr_config_call()
30 ret = usb_control_msg(dev->udev, in hdpvr_config_call()
31 usb_sndctrlpipe(dev->udev, 0), in hdpvr_config_call()
34 dev->usbc_buf, 1, 10000); in hdpvr_config_call()
36 mutex_unlock(&dev->usbc_mutex); in hdpvr_config_call()
37 v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, in hdpvr_config_call()
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/linux/drivers/media/test-drivers/vicodec/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "Virtual Codec Driver"
9 Driver for a Virtual Codec
12 a video device node that exposes an emulated hardware codec.

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