ref: 20a1d2268d69a0bbe66d0f21999649133878377c
dir: /sys/src/cmd/nusb/cam/uvc.h/
typedef struct VCDescriptor {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
} VCDescriptor;
typedef struct VCHeader {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bNumFormats;
uchar wTotalLength[2];
uchar dwClockFrequency[4];
uchar bInCollection;
uchar baInterfaceNr[1];
} VCHeader;
typedef struct VCInputTerminal {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bTerminalID;
uchar wTerminalType[2];
uchar bAssocTerminal;
uchar iTerminal;
} VCInputTerminal;
typedef struct VCOutputTerminal {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bTerminalID;
uchar wTerminalType[2];
uchar bAssocTerminal;
uchar bSourceID;
uchar iTerminal;
} VCOutputTerminal;
typedef struct VCCameraTerminal {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bTerminalID;
uchar wTerminalType[2];
uchar bAssocTerminal;
uchar iTerminal;
uchar wObjectiveFocalLengthMin[2];
uchar wObjectiveFocalLengthMax[2];
uchar wOcularFocalLength[2];
uchar bControlSize;
uchar bmControls[3];
} VCCameraTerminal;
typedef struct VCUnit {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bUnitID;
} VCUnit;
typedef struct VCSelectorUnit {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bUnitID;
uchar bNrInPins;
uchar baSourceID[1];
/* after baSourceID: uchar iSelector; */
} VCSelectorUnit;
typedef struct VCProcessingUnit {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bUnitID;
uchar bSourceID;
uchar wMaxMultiplier[2];
uchar bControlSize;
uchar bmControls[3];
uchar iProcessing;
uchar bmVideoStandards;
} VCProcessingUnit;
typedef struct VCEncodingUnit {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bUnitID;
uchar bSourceID;
uchar iEncoding;
uchar bControlSize;
uchar bmControls[3];
uchar bmControlsRuntime[3];
} VCEncodingUnit;
typedef struct VCExtensionUnit {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bUnitID;
uchar guidExtensionCode[16];
uchar bNumControls;
uchar bNrInPins;
uchar baSourceID[1];
/*
uchar bControlSize;
uchar bmControls[1];
uchar iExtension;
*/
} VCExtensionUnit;
typedef struct VSInputHeader {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bNumFormats;
uchar wTotalLength[2];
uchar bEndpointAddress;
uchar bmInfo;
uchar bTerminalLink;
uchar bStillCaptureMethod;
uchar bTriggerSupport;
uchar bTriggerUsage;
uchar bControlSize;
uchar bmaControls[1];
} VSInputHeader;
typedef struct VSOutputHeader {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bNumFormats;
uchar wTotalLength[2];
uchar bEndpointAddress;
uchar bTerminalLink;
uchar bControlSize;
uchar bmaControls[1];
} VSOutputHeader;
typedef struct VSStillFrame {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bEndpointAddress;
uchar bNumImageSizePatterns;
uchar data[1];
} VSStillFrame;
typedef struct VSUncompressedFormat {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bFormatIndex;
uchar bNumFrameDescriptors;
uchar guidFormat[16];
uchar bBitsPerPixel;
uchar bDefaultFrameIndex;
uchar bAspectRatioX;
uchar bAspectRatioY;
uchar bmInterlaceFlags;
uchar bCopyProtect;
} VSUncompressedFormat;
typedef struct VSUncompressedFrame {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bFrameIndex;
uchar bmCapabilities;
uchar wWidth[2];
uchar wHeight[2];
uchar dwMinBitRate[4];
uchar dwMaxBitRate[4];
uchar dwMaxVideoFrameBufferSize[4];
uchar dwDefaultFrameInterval[4];
uchar bFrameIntervalType;
uchar dwFrameInterval[1][4];
} VSUncompressedFrame;
typedef struct VSColorFormat {
uchar bLength;
uchar bDescriptorType;
uchar bDescriptorSubtype;
uchar bColorPrimaries;
uchar bTransferCharacteristics;
uchar bMatrixCoefficients;
} VSColorFormat;
typedef struct ProbeControl {
uchar bmHint[2];
uchar bFormatIndex;
uchar bFrameIndex;
uchar dwFrameInterval[4];
uchar wKeyFrameRate[2];
uchar wPFrameRate[2];
uchar wCompQuality[2];
uchar wCompWindowSize[2];
uchar wDelay[2];
uchar dwMaxVideoFrameSize[4];
uchar dwMaxPayloadTransferSize[4];
uchar dwClockFrequency[4];
uchar bmFramingInfo;
uchar bPreferedVersion;
uchar bMinVersion;
uchar bMaxVersion;
uchar bBitDepthLuma;
uchar bmSettings;
uchar bMaxNumberOfRefFramesPlus1;
uchar bmRateControlModes[2];
uchar bmLayoutPerStream[8];
} ProbeControl;
enum {
CC_VIDEO = 0x0E,
SC_UNDEFINED = 0x00,
SC_VIDEOCONTROL = 0x01,
SC_VIDEOSTREAMING = 0x02,
SC_VIDEO_INTERFACE_COLLECTION = 0x03,
PC_PROTOCOL_UNDEFINED = 0x00,
PC_PROTOCOL_15 = 0x01,
CS_UNDEFINED = 0x20,
CS_DEVICE = 0x21,
CS_CONFIGURATION = 0x22,
CS_STRING = 0x23,
CS_INTERFACE = 0x24,
CS_ENDPOINT = 0x25,
VC_DESCRIPTOR_UNDEFINED = 0x00,
VC_HEADER = 0x01,
VC_INPUT_TERMINAL = 0x02,
VC_OUTPUT_TERMINAL = 0x03,
VC_SELECTOR_UNIT = 0x04,
VC_PROCESSING_UNIT = 0x05,
VC_EXTENSION_UNIT = 0x06,
VC_ENCODING_UNIT = 0x07,
VS_UNDEFINED = 0x00,
VS_INPUT_HEADER = 0x01,
VS_OUTPUT_HEADER = 0x02,
VS_STILL_IMAGE_FRAME = 0x03,
VS_FORMAT_UNCOMPRESSED = 0x04,
VS_FRAME_UNCOMPRESSED = 0x05,
VS_FORMAT_MJPEG = 0x06,
VS_FRAME_MJPEG = 0x07,
VS_FORMAT_MPEG2TS = 0x0A,
VS_FORMAT_DV = 0x0C,
VS_COLORFORMAT = 0x0D,
VS_FORMAT_FRAME_BASED = 0x10,
VS_FRAME_FRAME_BASED = 0x11,
VS_FORMAT_STREAM_BASED = 0x12,
VS_FORMAT_H264 = 0x13,
VS_FRAME_H264 = 0x14,
VS_FORMAT_H264_SIMULCAST = 0x15,
VS_FORMAT_VP8 = 0x16,
VS_FRAME_VP8 = 0x17,
VS_FORMAT_VP8_SIMULCAST = 0x18,
RC_UNDEFINED = 0x00,
SET_CUR = 0x01,
SET_CUR_ALL = 0x11,
GET_CUR = 0x81,
GET_MIN = 0x82,
GET_MAX = 0x83,
GET_RES = 0x84,
GET_LEN = 0x85,
GET_INFO = 0x86,
GET_DEF = 0x87,
GET_CUR_ALL = 0x91,
GET_MIN_ALL = 0x92,
GET_MAX_ALL = 0x93,
GET_RES_ALL = 0x94,
GET_DEF_ALL = 0x97,
VC_CONTROL_UNDEFINED = 0x00,
VC_VIDEO_POWER_MODE_CONTROL = 0x01,
VC_REQUEST_ERROR_CODE_CONTROL = 0x02,
TE_CONTROL_UNDEFINED = 0x00,
SU_CONTROL_UNDEFINED = 0x00,
SU_INPUT_SELECT_CONTROL = 0x01,
CT_CONTROL_UNDEFINED = 0x00,
CT_SCANNING_MODE_CONTROL = 0x01,
CT_AE_MODE_CONTROL = 0x02,
CT_AE_PRIORITY_CONTROL = 0x03,
CT_EXPOSURE_TIME_ABSOLUTE_CONTROL = 0x04,
CT_EXPOSURE_TIME_RELATIVE_CONTROL = 0x05,
CT_FOCUS_ABSOLUTE_CONTROL = 0x06,
CT_FOCUS_RELATIVE_CONTROL = 0x07,
CT_FOCUS_AUTO_CONTROL = 0x08,
CT_IRIS_ABSOLUTE_CONTROL = 0x09,
CT_IRIS_RELATIVE_CONTROL = 0x0a,
CT_ZOOM_ABSOLUTE_CONTROL = 0x0b,
CT_ZOOM_RELATIVE_CONTROL = 0x0c,
CT_PANTILT_ABSOLUTE_CONTROL = 0x0d,
CT_PANTILT_RELATIVE_CONTROL = 0x0e,
CT_ROLL_ABSOLUTE_CONTROL = 0x0f,
CT_ROLL_RELATIVE_CONTROL = 0x10,
CT_PRIVACY_CONTROL = 0x11,
CT_FOCUS_SIMPLE_CONTROL = 0x12,
CT_WINDOW_CONTROL = 0x13,
CT_REGION_OF_INTEREST_CONTROL = 0x14,
PU_CONTROL_UNDEFINED = 0x00,
PU_BACKLIGHT_COMPENSATION_CONTROL = 0x01,
PU_BRIGHTNESS_CONTROL = 0x02,
PU_CONTRAST_CONTROL = 0x03,
PU_GAIN_CONTROL = 0x04,
PU_POWER_LINE_FREQUENCY_CONTROL = 0x05,
PU_HUE_CONTROL = 0x06,
PU_SATURATION_CONTROL = 0x07,
PU_SHARPNESS_CONTROL = 0x08,
PU_GAMMA_CONTROL = 0x09,
PU_WHITE_BALANCE_TEMPERATURE_CONTROL = 0x0a,
PU_WHITE_BALANCE_TEMPERATURE_AUTO_CONTROL = 0x0b,
PU_WHITE_BALANCE_COMPONENT_CONTROL = 0x0c,
PU_WHITE_BALANCE_COMPONENT_AUTO_CONTROL = 0x0d,
PU_DIGITAL_MULTIPLIER_CONTROL = 0x0e,
PU_DIGITAL_MULTIPLIER_LIMIT_CONTROL = 0x0f,
PU_HUE_AUTO_CONTROL = 0x10,
PU_ANALOG_VIDEO_STANDARD_CONTROL = 0x11,
PU_ANALOG_LOCK_STATUS_CONTROL = 0x12,
PU_CONTRAST_AUTO_CONTROL = 0x13,
EU_CONTROL_UNDEFINED = 0x00,
EU_SELECT_LAYER_CONTROL = 0x01,
EU_PROFILE_TOOLSET_CONTROL = 0x02,
EU_VIDEO_RESOLUTION_CONTROL = 0x03,
EU_MIN_FRAME_INTERVAL_CONTROL = 0x04,
EU_SLICE_MODE_CONTROL = 0x05,
EU_RATE_CONTROL_MODE_CONTROL = 0x06,
EU_AVERAGE_BITRATE_CONTROL = 0x07,
EU_CPB_SIZE_CONTROL = 0x08,
EU_PEAK_BIT_RATE_CONTROL = 0x09,
EU_QUANTIZATION_PARAMS_CONTROL = 0x0a,
EU_SYNC_REF_FRAME_CONTROL = 0x0b,
EU_LTR_BUFFER_ = 0x0c,
EU_LTR_PICTURE_CONTROL = 0x0d,
EU_LTR_VALIDATION_CONTROL = 0x0e,
EU_LEVEL_IDC_LIMIT_CONTROL = 0x0f,
EU_SEI_PAYLOADTYPE_CONTROL = 0x10,
EU_QP_RANGE_CONTROL = 0x11,
EU_PRIORITY_CONTROL = 0x12,
EU_START_OR_STOP_LAYER_CONTROL = 0x13,
EU_ERROR_RESILIENCY_CONTROL = 0x14,
XU_CONTROL_UNDEFINED = 0x00,
VS_CONTROL_UNDEFINED = 0x00,
VS_PROBE_CONTROL = 0x01,
VS_COMMIT_CONTROL = 0x02,
VS_STILL_PROBE_CONTROL = 0x03,
VS_STILL_COMMIT_CONTROL = 0x04,
VS_STILL_IMAGE_TRIGGER_CONTROL = 0x05,
VS_STREAM_ERROR_CODE_CONTROL = 0x06,
VS_GENERATE_KEY_FRAME_CONTROL = 0x07,
VS_UPDATE_FRAME_SEGMENT_CONTROL = 0x08,
VS_SYNCH_DELAY_CONTROL = 0x09,
ITT_VENDOR_SPECIFIC = 0x0200,
ITT_CAMERA = 0x0201,
ITT_MEDIA_TRANSPORT_INPUT,
};
#define GET3(p) (((p)[2] & 0xFF)<<16 | ((p)[1] & 0xFF)<<8 | ((p)[0] & 0xFF))