2025-02-27 17:59:18 +08:00

679 lines
20 KiB
C
Executable File

/*
* USB Video Class definitions.
*
* 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 _USB_VIDEO_H_
#define _USB_VIDEO_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
? Current setting attribute (GET_CUR)
? Minimum setting attribute (GET_MIN)
? Maximum setting attribute (GET_MAX)
? Default setting attribute (GET_DEF)
? Resolution attribute (GET_RES)
? Data length attribute (GET_LEN)
? Information attribute (GET_INFO)
? Current setting attribute (SET_CUR)
*/
#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
/* 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)
/* ------------------------------------------------------------------------
* UVC structures
*/
/* All UVC descriptors have these 3 fields at the beginning */
struct uvc_descriptor_header
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
} __attribute__((packed));
/* 3.7.2. Video Control Interface Header Descriptor */
struct uvc_header_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint16_t bcdUVC;
uint16_t wTotalLength;
uint32_t dwClockFrequency;
uint8_t bInCollection;
uint8_t 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) { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint16_t bcdUVC; \
uint16_t wTotalLength; \
uint32_t dwClockFrequency; \
uint8_t bInCollection; \
uint8_t baInterfaceNr[n]; \
} __attribute__ ((packed))
/* 3.7.2.1. Input Terminal Descriptor */
struct uvc_input_terminal_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bTerminalID;
uint16_t wTerminalType;
uint8_t bAssocTerminal;
uint8_t iTerminal;
} __attribute__((__packed__));
#define UVC_DT_INPUT_TERMINAL_SIZE 8
/* 3.7.2.2. Output Terminal Descriptor */
struct uvc_output_terminal_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bTerminalID;
uint16_t wTerminalType;
uint8_t bAssocTerminal;
uint8_t bSourceID;
uint8_t iTerminal;
} __attribute__((__packed__));
#define UVC_DT_OUTPUT_TERMINAL_SIZE 9
/* 3.7.2.3. Camera Terminal Descriptor */
struct uvc_camera_terminal_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bTerminalID;
uint16_t wTerminalType;
uint8_t bAssocTerminal;
uint8_t iTerminal;
uint16_t wObjectiveFocalLengthMin;
uint16_t wObjectiveFocalLengthMax;
uint16_t wOcularFocalLength;
uint8_t bControlSize;
uint8_t 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
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bUnitID;
uint8_t bNrInPins;
uint8_t baSourceID[1];
uint8_t 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) { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bUnitID; \
uint8_t bNrInPins; \
uint8_t baSourceID[n]; \
uint8_t iSelector; \
} __attribute__ ((packed))
/* 3.7.2.5. Processing Unit Descriptor */
struct uvc_processing_unit_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bUnitID;
uint8_t bSourceID;
uint16_t wMaxMultiplier;
uint8_t bControlSize;
uint8_t bmControls[2];
uint8_t iProcessing;
} __attribute__((__packed__));
#define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(n))
/* 3.7.2.6. Extension Unit Descriptor */
struct uvc_extension_unit_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bUnitID;
uint8_t guidExtensionCode[16];
uint8_t bNumControls;
uint8_t bNrInPins;
uint8_t baSourceID[1];
uint8_t bControlSize;
uint8_t bmControls[1];
uint8_t 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) { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bUnitID; \
uint8_t guidExtensionCode[16]; \
uint8_t bNumControls; \
uint8_t bNrInPins; \
uint8_t baSourceID[p]; \
uint8_t bControlSize; \
uint8_t bmControls[n]; \
uint8_t iExtension; \
} __attribute__ ((packed))
/* 3.8.2.2. Video Control Interrupt Endpoint Descriptor */
struct uvc_control_endpoint_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint16_t wMaxTransferSize;
} __attribute__((__packed__));
#define UVC_DT_CONTROL_ENDPOINT_SIZE 5
/* 3.9.2.1. Input Header Descriptor */
struct uvc_input_header_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bNumFormats;
uint16_t wTotalLength;
uint8_t bEndpointAddress;
uint8_t bmInfo;
uint8_t bTerminalLink;
uint8_t bStillCaptureMethod;
uint8_t bTriggerSupport;
uint8_t bTriggerUsage;
uint8_t bControlSize;
uint8_t 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) { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bNumFormats; \
uint16_t wTotalLength; \
uint8_t bEndpointAddress; \
uint8_t bmInfo; \
uint8_t bTerminalLink; \
uint8_t bStillCaptureMethod; \
uint8_t bTriggerSupport; \
uint8_t bTriggerUsage; \
uint8_t bControlSize; \
uint8_t bmaControls[p][n]; \
} __attribute__ ((packed))
/* 3.9.2.2. Output Header Descriptor */
struct uvc_output_header_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bNumFormats;
uint16_t wTotalLength;
uint8_t bEndpointAddress;
uint8_t bTerminalLink;
uint8_t bControlSize;
uint8_t 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) { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bNumFormats; \
uint16_t wTotalLength; \
uint8_t bEndpointAddress; \
uint8_t bTerminalLink; \
uint8_t bControlSize; \
uint8_t bmaControls[p][n]; \
} __attribute__ ((packed))
/* 3.9.2.6. Color matching descriptor */
struct uvc_color_matching_descriptor
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bColorPrimaries;
uint8_t bTransferCharacteristics;
uint8_t bMatrixCoefficients;
} __attribute__((__packed__));
#define UVC_DT_COLOR_MATCHING_SIZE 6
/* 4.3.1.1. Video Probe and Commit Controls */
struct uvc_streaming_control_10
{
uint16_t bmHint;
uint8_t bFormatIndex;
uint8_t bFrameIndex;
uint32_t dwFrameInterval;
uint16_t wKeyFrameRate;
uint16_t wPFrameRate;
uint16_t wCompQuality;
uint16_t wCompWindowSize;
uint16_t wDelay;
uint32_t dwMaxVideoFrameSize;
uint32_t dwMaxPayloadTransferSize;
} __attribute__((__packed__));
#define UVC_VERSION_10 26
struct uvc_streaming_control_11
{
uint16_t bmHint;
uint8_t bFormatIndex;
uint8_t bFrameIndex;
uint32_t dwFrameInterval;
uint16_t wKeyFrameRate;
uint16_t wPFrameRate;
uint16_t wCompQuality;
uint16_t wCompWindowSize;
uint16_t wDelay;
uint32_t dwMaxVideoFrameSize;
uint32_t dwMaxPayloadTransferSize;
uint32_t dwClockFrequency;
uint8_t bmFramingInfo;
uint8_t bPreferedVersion;
uint8_t bMinVersion;
uint8_t bMaxVersion;
} __attribute__((__packed__));
#define UVC_VERSION_11 34
struct uvc_streaming_control_15
{
uint16_t bmHint;
uint8_t bFormatIndex;
uint8_t bFrameIndex;
uint32_t dwFrameInterval;
uint16_t wKeyFrameRate;
uint16_t wPFrameRate;
uint16_t wCompQuality;
uint16_t wCompWindowSize;
uint16_t wDelay;
uint32_t dwMaxVideoFrameSize;
uint32_t dwMaxPayloadTransferSize;
uint32_t dwClockFrequency;
uint8_t bmFramingInfo;
uint8_t bPreferedVersion;
uint8_t bMinVersion;
uint8_t bMaxVersion;
uint8_t bUsage;
uint8_t bBitDepthLuma;
uint8_t bmSettings;
uint8_t bMaxNumberOfRefFramesPlus1;
uint16_t bmRateControlModes;
uint64_t bmLayoutPerStream;
} __attribute__((__packed__));
#define UVC_VERSION_15 48
/* Uncompressed Payload - 3.1.1. Uncompressed Video Format Descriptor */
struct uvc_format_uncompressed
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bFormatIndex;
uint8_t bNumFrameDescriptors;
uint8_t guidFormat[16];
uint8_t bBitsPerPixel;
uint8_t bDefaultFrameIndex;
uint8_t bAspectRatioX;
uint8_t bAspectRatioY;
uint8_t bmInterfaceFlags;
uint8_t bCopyProtect;
} __attribute__((__packed__));
#define UVC_DT_FORMAT_UNCOMPRESSED_SIZE 27
/* Uncompressed Payload - 3.1.2. Uncompressed Video Frame Descriptor */
struct uvc_frame_uncompressed
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bFrameIndex;
uint8_t bmCapabilities;
uint16_t wWidth;
uint16_t wHeight;
uint32_t dwMinBitRate;
uint32_t dwMaxBitRate;
uint32_t dwMaxVideoFrameBufferSize;
uint32_t dwDefaultFrameInterval;
uint8_t bFrameIntervalType;
uint32_t 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) { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bFrameIndex; \
uint8_t bmCapabilities; \
uint16_t wWidth; \
uint16_t wHeight; \
uint32_t dwMinBitRate; \
uint32_t dwMaxBitRate; \
uint32_t dwMaxVideoFrameBufferSize; \
uint32_t dwDefaultFrameInterval; \
uint8_t bFrameIntervalType; \
uint32_t dwFrameInterval[n]; \
} __attribute__ ((packed))
/* MJPEG Payload - 3.1.1. MJPEG Video Format Descriptor */
struct uvc_format_mjpeg
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bFormatIndex;
uint8_t bNumFrameDescriptors;
uint8_t bmFlags;
uint8_t bDefaultFrameIndex;
uint8_t bAspectRatioX;
uint8_t bAspectRatioY;
uint8_t bmInterfaceFlags;
uint8_t bCopyProtect;
} __attribute__((__packed__));
#define UVC_DT_FORMAT_MJPEG_SIZE 11
/* MJPEG Payload - 3.1.2. MJPEG Video Frame Descriptor */
struct uvc_frame_mjpeg
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bFrameIndex;
uint8_t bmCapabilities;
uint16_t wWidth;
uint16_t wHeight;
uint32_t dwMinBitRate;
uint32_t dwMaxBitRate;
uint32_t dwMaxVideoFrameBufferSize;
uint32_t dwDefaultFrameInterval;
uint8_t bFrameIntervalType;
uint32_t dwFrameInterval[];
} __attribute__((__packed__));
/* H264 Payload - 3.1.1. H264 Video Format Descriptor */
struct uvc_format_h26x
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bFormatIndex;
uint8_t bNumFrameDescriptors;
uint8_t guidFormat[16];
uint8_t bBitsPerPixel;
uint8_t bDefaultFrameIndex;
uint8_t bAspectRatioX;
uint8_t bAspectRatioY;
uint8_t bmInterfaceFlags;
uint8_t bCopyProtect;
uint8_t bVariableSize;
} __attribute__((__packed__));
#define UVC_DT_FORMAT_H264_SIZE 28
/* H264 Payload - 3.1.2. H264 Video Frame Descriptor */
struct uvc_frame_h26x
{
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bFrameIndex;
uint8_t bmCapabilities;
uint16_t wWidth;
uint16_t wHeight;
uint32_t dwMinBitRate;
uint32_t dwMaxBitRate;
uint32_t dwDefaultFrameInterval;
uint8_t bFrameIntervalType;
uint32_t dwBytesPerLine;
uint32_t dwFrameInterval[];
} __attribute__((__packed__));
#define UVC_DT_FRAME_H264_SIZE(n) (25+4*(n))
#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) { \
uint8_t bLength; \
uint8_t bDescriptorType; \
uint8_t bDescriptorSubType; \
uint8_t bFrameIndex; \
uint8_t bmCapabilities; \
uint16_t wWidth; \
uint16_t wHeight; \
uint32_t dwMinBitRate; \
uint32_t dwMaxBitRate; \
uint32_t dwMaxVideoFrameBufferSize; \
uint32_t dwDefaultFrameInterval; \
uint8_t bFrameIntervalType; \
uint32_t dwFrameInterval[n]; \
} __attribute__ ((packed))
#endif /* _USB_VIDEO_H_ */
//eof