Quelle  video.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * USB Video Class definitions.
 *
 * Copyright (C) 2009 Laurent Pinchart <laurent.pinchart@skynet.be>
 *
 * This file holds USB constants and structures defined by the USB Device
 * Class Definition for Video Devices. Unless otherwise stated, comments
 * below reference relevant sections of the USB Video Class 1.1 specification
 * available at
 *
 * http://www.usb.org/developers/devclass_docs/USB_Video_Class_1_1.zip
 */

#ifndef __LINUX_USB_VIDEO_H
#define __LINUX_USB_VIDEO_H

#include <linux/types.h>

/* --------------------------------------------------------------------------
 * UVC constants
 */

/* A.2. Video Interface Subclass Codes */
#define UVC_SC_UNDEFINED    0x00
#define UVC_SC_VIDEOCONTROL    0x01
#define UVC_SC_VIDEOSTREAMING    0x02
#define UVC_SC_VIDEO_INTERFACE_COLLECTION  0x03

/* A.3. Video Interface Protocol Codes */
#define UVC_PC_PROTOCOL_UNDEFINED   0x00
#define UVC_PC_PROTOCOL_15    0x01

/* A.5. Video Class-Specific VC Interface Descriptor Subtypes */
#define UVC_VC_DESCRIPTOR_UNDEFINED   0x00
#define UVC_VC_HEADER     0x01
#define UVC_VC_INPUT_TERMINAL    0x02
#define UVC_VC_OUTPUT_TERMINAL    0x03
#define UVC_VC_SELECTOR_UNIT    0x04
#define UVC_VC_PROCESSING_UNIT    0x05
#define UVC_VC_EXTENSION_UNIT    0x06

/* A.6. Video Class-Specific VS Interface Descriptor Subtypes */
#define UVC_VS_UNDEFINED    0x00
#define UVC_VS_INPUT_HEADER    0x01
#define UVC_VS_OUTPUT_HEADER    0x02
#define UVC_VS_STILL_IMAGE_FRAME   0x03
#define UVC_VS_FORMAT_UNCOMPRESSED   0x04
#define UVC_VS_FRAME_UNCOMPRESSED   0x05
#define UVC_VS_FORMAT_MJPEG    0x06
#define UVC_VS_FRAME_MJPEG    0x07
#define UVC_VS_FORMAT_MPEG2TS    0x0a
#define UVC_VS_FORMAT_DV    0x0c
#define UVC_VS_COLORFORMAT    0x0d
#define UVC_VS_FORMAT_FRAME_BASED   0x10
#define UVC_VS_FRAME_FRAME_BASED   0x11
#define UVC_VS_FORMAT_STREAM_BASED   0x12

/* A.7. Video Class-Specific Endpoint Descriptor Subtypes */
#define UVC_EP_UNDEFINED    0x00
#define UVC_EP_GENERAL     0x01
#define UVC_EP_ENDPOINT     0x02
#define UVC_EP_INTERRUPT    0x03

/* A.8. Video Class-Specific Request Codes */
#define UVC_RC_UNDEFINED    0x00
#define UVC_SET_CUR     0x01
#define UVC_GET_CUR     0x81
#define UVC_GET_MIN     0x82
#define UVC_GET_MAX     0x83
#define UVC_GET_RES     0x84
#define UVC_GET_LEN     0x85
#define UVC_GET_INFO     0x86
#define UVC_GET_DEF     0x87

/* A.9.1. VideoControl Interface Control Selectors */
#define UVC_VC_CONTROL_UNDEFINED   0x00
#define UVC_VC_VIDEO_POWER_MODE_CONTROL   0x01
#define UVC_VC_REQUEST_ERROR_CODE_CONTROL  0x02

/* A.9.2. Terminal Control Selectors */
#define UVC_TE_CONTROL_UNDEFINED   0x00

/* A.9.3. Selector Unit Control Selectors */
#define UVC_SU_CONTROL_UNDEFINED   0x00
#define UVC_SU_INPUT_SELECT_CONTROL   0x01

/* A.9.4. Camera Terminal Control Selectors */
#define UVC_CT_CONTROL_UNDEFINED   0x00
#define UVC_CT_SCANNING_MODE_CONTROL   0x01
#define UVC_CT_AE_MODE_CONTROL    0x02
#define UVC_CT_AE_PRIORITY_CONTROL   0x03
#define UVC_CT_EXPOSURE_TIME_ABSOLUTE_CONTROL  0x04
#define UVC_CT_EXPOSURE_TIME_RELATIVE_CONTROL  0x05
#define UVC_CT_FOCUS_ABSOLUTE_CONTROL   0x06
#define UVC_CT_FOCUS_RELATIVE_CONTROL   0x07
#define UVC_CT_FOCUS_AUTO_CONTROL   0x08
#define UVC_CT_IRIS_ABSOLUTE_CONTROL   0x09
#define UVC_CT_IRIS_RELATIVE_CONTROL   0x0a
#define UVC_CT_ZOOM_ABSOLUTE_CONTROL   0x0b
#define UVC_CT_ZOOM_RELATIVE_CONTROL   0x0c
#define UVC_CT_PANTILT_ABSOLUTE_CONTROL   0x0d
#define UVC_CT_PANTILT_RELATIVE_CONTROL   0x0e
#define UVC_CT_ROLL_ABSOLUTE_CONTROL   0x0f
#define UVC_CT_ROLL_RELATIVE_CONTROL   0x10
#define UVC_CT_PRIVACY_CONTROL    0x11
#define UVC_CT_REGION_OF_INTEREST_CONTROL  0x14

/* A.9.5. Processing Unit Control Selectors */
#define UVC_PU_CONTROL_UNDEFINED   0x00
#define UVC_PU_BACKLIGHT_COMPENSATION_CONTROL  0x01
#define UVC_PU_BRIGHTNESS_CONTROL   0x02
#define UVC_PU_CONTRAST_CONTROL    0x03
#define UVC_PU_GAIN_CONTROL    0x04
#define UVC_PU_POWER_LINE_FREQUENCY_CONTROL  0x05
#define UVC_PU_HUE_CONTROL    0x06
#define UVC_PU_SATURATION_CONTROL   0x07
#define UVC_PU_SHARPNESS_CONTROL   0x08
#define UVC_PU_GAMMA_CONTROL    0x09
#define UVC_PU_WHITE_BALANCE_TEMPERATURE_CONTROL 0x0a
#define UVC_PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL 0x0b
#define UVC_PU_WHITE_BALANCE_COMPONENT_CONTROL  0x0c
#define UVC_PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL 0x0d
#define UVC_PU_DIGITAL_MULTIPLIER_CONTROL  0x0e
#define UVC_PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL  0x0f
#define UVC_PU_HUE_AUTO_CONTROL    0x10
#define UVC_PU_ANALOG_VIDEO_STANDARD_CONTROL  0x11
#define UVC_PU_ANALOG_LOCK_STATUS_CONTROL  0x12

/* A.9.7. VideoStreaming Interface Control Selectors */
#define UVC_VS_CONTROL_UNDEFINED   0x00
#define UVC_VS_PROBE_CONTROL    0x01
#define UVC_VS_COMMIT_CONTROL    0x02
#define UVC_VS_STILL_PROBE_CONTROL   0x03
#define UVC_VS_STILL_COMMIT_CONTROL   0x04
#define UVC_VS_STILL_IMAGE_TRIGGER_CONTROL  0x05
#define UVC_VS_STREAM_ERROR_CODE_CONTROL  0x06
#define UVC_VS_GENERATE_KEY_FRAME_CONTROL  0x07
#define UVC_VS_UPDATE_FRAME_SEGMENT_CONTROL  0x08
#define UVC_VS_SYNC_DELAY_CONTROL   0x09

/* B.1. USB Terminal Types */
#define UVC_TT_VENDOR_SPECIFIC    0x0100
#define UVC_TT_STREAMING    0x0101

/* B.2. Input Terminal Types */
#define UVC_ITT_VENDOR_SPECIFIC    0x0200
#define UVC_ITT_CAMERA     0x0201
#define UVC_ITT_MEDIA_TRANSPORT_INPUT   0x0202

/* B.3. Output Terminal Types */
#define UVC_OTT_VENDOR_SPECIFIC    0x0300
#define UVC_OTT_DISPLAY     0x0301
#define UVC_OTT_MEDIA_TRANSPORT_OUTPUT   0x0302

/* B.4. External Terminal Types */
#define UVC_EXTERNAL_VENDOR_SPECIFIC   0x0400
#define UVC_COMPOSITE_CONNECTOR    0x0401
#define UVC_SVIDEO_CONNECTOR    0x0402
#define UVC_COMPONENT_CONNECTOR    0x0403

/* 2.4.2.2. Status Packet Type */
#define UVC_STATUS_TYPE_CONTROL    1
#define UVC_STATUS_TYPE_STREAMING   2

/* 2.4.3.3. Payload Header Information */
#define UVC_STREAM_EOH     (1 << 7)
#define UVC_STREAM_ERR     (1 << 6)
#define UVC_STREAM_STI     (1 << 5)
#define UVC_STREAM_RES     (1 << 4)
#define UVC_STREAM_SCR     (1 << 3)
#define UVC_STREAM_PTS     (1 << 2)
#define UVC_STREAM_EOF     (1 << 1)
#define UVC_STREAM_FID     (1 << 0)

/* 4.1.2. Control Capabilities */
#define UVC_CONTROL_CAP_GET    (1 << 0)
#define UVC_CONTROL_CAP_SET    (1 << 1)
#define UVC_CONTROL_CAP_DISABLED   (1 << 2)
#define UVC_CONTROL_CAP_AUTOUPDATE   (1 << 3)
#define UVC_CONTROL_CAP_ASYNCHRONOUS   (1 << 4)

/* 3.9.2.6 Color Matching Descriptor Values */
enum uvc_color_primaries_values {
 UVC_COLOR_PRIMARIES_UNSPECIFIED,
 UVC_COLOR_PRIMARIES_BT_709_SRGB,
 UVC_COLOR_PRIMARIES_BT_470_2_M,
 UVC_COLOR_PRIMARIES_BT_470_2_B_G,
 UVC_COLOR_PRIMARIES_SMPTE_170M,
 UVC_COLOR_PRIMARIES_SMPTE_240M,
};

enum uvc_transfer_characteristics_values {
 UVC_TRANSFER_CHARACTERISTICS_UNSPECIFIED,
 UVC_TRANSFER_CHARACTERISTICS_BT_709,
 UVC_TRANSFER_CHARACTERISTICS_BT_470_2_M,
 UVC_TRANSFER_CHARACTERISTICS_BT_470_2_B_G,
 UVC_TRANSFER_CHARACTERISTICS_SMPTE_170M,
 UVC_TRANSFER_CHARACTERISTICS_SMPTE_240M,
 UVC_TRANSFER_CHARACTERISTICS_LINEAR,
 UVC_TRANSFER_CHARACTERISTICS_SRGB,
};

enum uvc_matrix_coefficients {
 UVC_MATRIX_COEFFICIENTS_UNSPECIFIED,
 UVC_MATRIX_COEFFICIENTS_BT_709,
 UVC_MATRIX_COEFFICIENTS_FCC,
 UVC_MATRIX_COEFFICIENTS_BT_470_2_B_G,
 UVC_MATRIX_COEFFICIENTS_SMPTE_170M,
 UVC_MATRIX_COEFFICIENTS_SMPTE_240M,
};

/* ------------------------------------------------------------------------
 * UVC structures
 */

/* All UVC descriptors have these 3 fields at the beginning */
struct uvc_descriptor_header {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
} __attribute__((packed));

/* 3.7.2. Video Control Interface Header Descriptor */
struct uvc_header_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __le16 bcdUVC;
 __le16 wTotalLength;
 __le32 dwClockFrequency;
 __u8   bInCollection;
 __u8   baInterfaceNr[];
} __attribute__((__packed__));

#define UVC_DT_HEADER_SIZE(n)    (12+(n))

#define UVC_HEADER_DESCRIPTOR(n) \
 uvc_header_descriptor_##n

#define DECLARE_UVC_HEADER_DESCRIPTOR(n)  \
struct UVC_HEADER_DESCRIPTOR(n) {   \
 __u8   bLength;     \
 __u8   bDescriptorType;    \
 __u8   bDescriptorSubType;   \
 __le16 bcdUVC;     \
 __le16 wTotalLength;    \
 __le32 dwClockFrequency;   \
 __u8   bInCollection;    \
 __u8   baInterfaceNr[n];   \
} __attribute__ ((packed))

/* 3.7.2.1. Input Terminal Descriptor */
struct uvc_input_terminal_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bTerminalID;
 __le16 wTerminalType;
 __u8   bAssocTerminal;
 __u8   iTerminal;
} __attribute__((__packed__));

#define UVC_DT_INPUT_TERMINAL_SIZE   8

/* 3.7.2.2. Output Terminal Descriptor */
struct uvc_output_terminal_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bTerminalID;
 __le16 wTerminalType;
 __u8   bAssocTerminal;
 __u8   bSourceID;
 __u8   iTerminal;
} __attribute__((__packed__));

#define UVC_DT_OUTPUT_TERMINAL_SIZE   9

/* 3.7.2.3. Camera Terminal Descriptor */
struct uvc_camera_terminal_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bTerminalID;
 __le16 wTerminalType;
 __u8   bAssocTerminal;
 __u8   iTerminal;
 __le16 wObjectiveFocalLengthMin;
 __le16 wObjectiveFocalLengthMax;
 __le16 wOcularFocalLength;
 __u8   bControlSize;
 __u8   bmControls[3];
} __attribute__((__packed__));

#define UVC_DT_CAMERA_TERMINAL_SIZE(n)   (15+(n))

/* 3.7.2.4. Selector Unit Descriptor */
struct uvc_selector_unit_descriptor {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
 __u8  bUnitID;
 __u8  bNrInPins;
 __u8  baSourceID[0];
 __u8  iSelector;
} __attribute__((__packed__));

#define UVC_DT_SELECTOR_UNIT_SIZE(n)   (6+(n))

#define UVC_SELECTOR_UNIT_DESCRIPTOR(n) \
 uvc_selector_unit_descriptor_##n

#define DECLARE_UVC_SELECTOR_UNIT_DESCRIPTOR(n) \
struct UVC_SELECTOR_UNIT_DESCRIPTOR(n) {  \
 __u8  bLength;     \
 __u8  bDescriptorType;    \
 __u8  bDescriptorSubType;   \
 __u8  bUnitID;     \
 __u8  bNrInPins;    \
 __u8  baSourceID[n];    \
 __u8  iSelector;    \
} __attribute__ ((packed))

/* 3.7.2.5. Processing Unit Descriptor */
struct uvc_processing_unit_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bUnitID;
 __u8   bSourceID;
 __le16 wMaxMultiplier;
 __u8   bControlSize;
 __u8   bmControls[2];
 __u8   iProcessing;
 __u8   bmVideoStandards;
} __attribute__((__packed__));

#define UVC_DT_PROCESSING_UNIT_SIZE(n)   (10+(n))

/* 3.7.2.6. Extension Unit Descriptor */
struct uvc_extension_unit_descriptor {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
 __u8  bUnitID;
 __u8  guidExtensionCode[16];
 __u8  bNumControls;
 __u8  bNrInPins;
 __u8  baSourceID[0];
 __u8  bControlSize;
 __u8  bmControls[0];
 __u8  iExtension;
} __attribute__((__packed__));

#define UVC_DT_EXTENSION_UNIT_SIZE(p, n)  (24+(p)+(n))

#define UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
 uvc_extension_unit_descriptor_##p_##n

#define DECLARE_UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) \
struct UVC_EXTENSION_UNIT_DESCRIPTOR(p, n) {  \
 __u8  bLength;     \
 __u8  bDescriptorType;    \
 __u8  bDescriptorSubType;   \
 __u8  bUnitID;     \
 __u8  guidExtensionCode[16];   \
 __u8  bNumControls;    \
 __u8  bNrInPins;    \
 __u8  baSourceID[p];    \
 __u8  bControlSize;    \
 __u8  bmControls[n];    \
 __u8  iExtension;    \
} __attribute__ ((packed))

/* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */
struct uvc_control_endpoint_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __le16 wMaxTransferSize;
} __attribute__((__packed__));

#define UVC_DT_CONTROL_ENDPOINT_SIZE   5

/* 3.9.2.1. Input Header Descriptor */
struct uvc_input_header_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bNumFormats;
 __le16 wTotalLength;
 __u8   bEndpointAddress;
 __u8   bmInfo;
 __u8   bTerminalLink;
 __u8   bStillCaptureMethod;
 __u8   bTriggerSupport;
 __u8   bTriggerUsage;
 __u8   bControlSize;
 __u8   bmaControls[];
} __attribute__((__packed__));

#define UVC_DT_INPUT_HEADER_SIZE(n, p)   (13+(n*p))

#define UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
 uvc_input_header_descriptor_##n_##p

#define DECLARE_UVC_INPUT_HEADER_DESCRIPTOR(n, p) \
struct UVC_INPUT_HEADER_DESCRIPTOR(n, p) {  \
 __u8   bLength;     \
 __u8   bDescriptorType;    \
 __u8   bDescriptorSubType;   \
 __u8   bNumFormats;    \
 __le16 wTotalLength;    \
 __u8   bEndpointAddress;   \
 __u8   bmInfo;     \
 __u8   bTerminalLink;    \
 __u8   bStillCaptureMethod;   \
 __u8   bTriggerSupport;    \
 __u8   bTriggerUsage;    \
 __u8   bControlSize;    \
 __u8   bmaControls[p][n];   \
} __attribute__ ((packed))

/* 3.9.2.2. Output Header Descriptor */
struct uvc_output_header_descriptor {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bNumFormats;
 __le16 wTotalLength;
 __u8   bEndpointAddress;
 __u8   bTerminalLink;
 __u8   bControlSize;
 __u8   bmaControls[];
} __attribute__((__packed__));

#define UVC_DT_OUTPUT_HEADER_SIZE(n, p)   (9+(n*p))

#define UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
 uvc_output_header_descriptor_##n_##p

#define DECLARE_UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) \
struct UVC_OUTPUT_HEADER_DESCRIPTOR(n, p) {  \
 __u8   bLength;     \
 __u8   bDescriptorType;    \
 __u8   bDescriptorSubType;   \
 __u8   bNumFormats;    \
 __le16 wTotalLength;    \
 __u8   bEndpointAddress;   \
 __u8   bTerminalLink;    \
 __u8   bControlSize;    \
 __u8   bmaControls[p][n];   \
} __attribute__ ((packed))

/* 3.9.2.6. Color matching descriptor */
struct uvc_color_matching_descriptor {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
 __u8  bColorPrimaries;
 __u8  bTransferCharacteristics;
 __u8  bMatrixCoefficients;
} __attribute__((__packed__));

#define UVC_DT_COLOR_MATCHING_SIZE   6

/* 4.3.1.1. Video Probe and Commit Controls */
struct uvc_streaming_control {
 __u16 bmHint;
 __u8  bFormatIndex;
 __u8  bFrameIndex;
 __u32 dwFrameInterval;
 __u16 wKeyFrameRate;
 __u16 wPFrameRate;
 __u16 wCompQuality;
 __u16 wCompWindowSize;
 __u16 wDelay;
 __u32 dwMaxVideoFrameSize;
 __u32 dwMaxPayloadTransferSize;
 __u32 dwClockFrequency;
 __u8  bmFramingInfo;
 __u8  bPreferedVersion;
 __u8  bMinVersion;
 __u8  bMaxVersion;
} __attribute__((__packed__));

/* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */
struct uvc_format_uncompressed {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
 __u8  bFormatIndex;
 __u8  bNumFrameDescriptors;
 __u8  guidFormat[16];
 __u8  bBitsPerPixel;
 __u8  bDefaultFrameIndex;
 __u8  bAspectRatioX;
 __u8  bAspectRatioY;
 __u8  bmInterlaceFlags;
 __u8  bCopyProtect;
} __attribute__((__packed__));

#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE   27

/* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */
struct uvc_frame_uncompressed {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bFrameIndex;
 __u8   bmCapabilities;
 __le16 wWidth;
 __le16 wHeight;
 __le32 dwMinBitRate;
 __le32 dwMaxBitRate;
 __le32 dwMaxVideoFrameBufferSize;
 __le32 dwDefaultFrameInterval;
 __u8   bFrameIntervalType;
 __le32 dwFrameInterval[];
} __attribute__((__packed__));

#define UVC_DT_FRAME_UNCOMPRESSED_SIZE(n)  (26+4*(n))

#define UVC_FRAME_UNCOMPRESSED(n) \
 uvc_frame_uncompressed_##n

#define DECLARE_UVC_FRAME_UNCOMPRESSED(n)  \
struct UVC_FRAME_UNCOMPRESSED(n) {   \
 __u8   bLength;     \
 __u8   bDescriptorType;    \
 __u8   bDescriptorSubType;   \
 __u8   bFrameIndex;    \
 __u8   bmCapabilities;    \
 __le16 wWidth;     \
 __le16 wHeight;     \
 __le32 dwMinBitRate;    \
 __le32 dwMaxBitRate;    \
 __le32 dwMaxVideoFrameBufferSize;  \
 __le32 dwDefaultFrameInterval;   \
 __u8   bFrameIntervalType;   \
 __le32 dwFrameInterval[n];   \
} __attribute__ ((packed))

/* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */
struct uvc_format_mjpeg {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
 __u8  bFormatIndex;
 __u8  bNumFrameDescriptors;
 __u8  bmFlags;
 __u8  bDefaultFrameIndex;
 __u8  bAspectRatioX;
 __u8  bAspectRatioY;
 __u8  bmInterlaceFlags;
 __u8  bCopyProtect;
} __attribute__((__packed__));

#define UVC_DT_FORMAT_MJPEG_SIZE   11

/* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */
struct uvc_frame_mjpeg {
 __u8   bLength;
 __u8   bDescriptorType;
 __u8   bDescriptorSubType;
 __u8   bFrameIndex;
 __u8   bmCapabilities;
 __le16 wWidth;
 __le16 wHeight;
 __le32 dwMinBitRate;
 __le32 dwMaxBitRate;
 __le32 dwMaxVideoFrameBufferSize;
 __le32 dwDefaultFrameInterval;
 __u8   bFrameIntervalType;
 __le32 dwFrameInterval[];
} __attribute__((__packed__));

#define UVC_DT_FRAME_MJPEG_SIZE(n)   (26+4*(n))

#define UVC_FRAME_MJPEG(n) \
 uvc_frame_mjpeg_##n

#define DECLARE_UVC_FRAME_MJPEG(n)   \
struct UVC_FRAME_MJPEG(n) {    \
 __u8   bLength;     \
 __u8   bDescriptorType;    \
 __u8   bDescriptorSubType;   \
 __u8   bFrameIndex;    \
 __u8   bmCapabilities;    \
 __le16 wWidth;     \
 __le16 wHeight;     \
 __le32 dwMinBitRate;    \
 __le32 dwMaxBitRate;    \
 __le32 dwMaxVideoFrameBufferSize;  \
 __le32 dwDefaultFrameInterval;   \
 __u8   bFrameIntervalType;   \
 __le32 dwFrameInterval[n];   \
} __attribute__ ((packed))

/* Frame Based Payload - 3.1.1. Frame Based Video Format Descriptor */
struct uvc_format_framebased {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
 __u8  bFormatIndex;
 __u8  bNumFrameDescriptors;
 __u8  guidFormat[16];
 __u8  bBitsPerPixel;
 __u8  bDefaultFrameIndex;
 __u8  bAspectRatioX;
 __u8  bAspectRatioY;
 __u8  bmInterfaceFlags;
 __u8  bCopyProtect;
 __u8  bVariableSize;
} __attribute__((__packed__));

#define UVC_DT_FORMAT_FRAMEBASED_SIZE                  28

/* Frame Based Payload - 3.1.2. Frame Based Video Frame Descriptor */
struct uvc_frame_framebased {
 __u8  bLength;
 __u8  bDescriptorType;
 __u8  bDescriptorSubType;
 __u8  bFrameIndex;
 __u8  bmCapabilities;
 __u16 wWidth;
 __u16 wHeight;
 __u32 dwMinBitRate;
 __u32 dwMaxBitRate;
 __u32 dwDefaultFrameInterval;
 __u8  bFrameIntervalType;
 __u32 dwBytesPerLine;
 __u32 dwFrameInterval[];
} __attribute__((__packed__));

#define UVC_DT_FRAME_FRAMEBASED_SIZE(n)                        (26+4*(n))

#define UVC_FRAME_FRAMEBASED(n) \
 uvc_frame_framebased_##n

#define DECLARE_UVC_FRAME_FRAMEBASED(n)   \
struct UVC_FRAME_FRAMEBASED(n) {   \
 __u8  bLength;     \
 __u8  bDescriptorType;    \
 __u8  bDescriptorSubType;                       \
 __u8  bFrameIndex;                              \
 __u8  bmCapabilities;                           \
 __u16 wWidth;                                   \
 __u16 wHeight;                                  \
 __u32 dwMinBitRate;                             \
 __u32 dwMaxBitRate;                             \
 __u32 dwDefaultFrameInterval;                   \
 __u8  bFrameIntervalType;                       \
 __u32 dwBytesPerLine;                           \
 __u32 dwFrameInterval[n];                       \
} __attribute__ ((packed))

#endif /* __LINUX_USB_VIDEO_H */