| /* | |
| * 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 | |
| /* 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 | |
| /* 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 { | |
| __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; | |
| __u16 bcdUVC; | |
| __u16 wTotalLength; | |
| __u32 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; \ | |
| __u16 bcdUVC; \ | |
| __u16 wTotalLength; \ | |
| __u32 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; | |
| __u16 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; | |
| __u16 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; | |
| __u16 wTerminalType; | |
| __u8 bAssocTerminal; | |
| __u8 iTerminal; | |
| __u16 wObjectiveFocalLengthMin; | |
| __u16 wObjectiveFocalLengthMax; | |
| __u16 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; | |
| __u16 wMaxMultiplier; | |
| __u8 bControlSize; | |
| __u8 bmControls[2]; | |
| __u8 iProcessing; | |
| } __attribute__((__packed__)); | |
| #define UVC_DT_PROCESSING_UNIT_SIZE(n) (9+(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; | |
| __u16 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; | |
| __u16 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; \ | |
| __u16 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; | |
| __u16 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; \ | |
| __u16 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 bmInterfaceFlags; | |
| __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; | |
| __u16 wWidth; | |
| __u16 wHeight; | |
| __u32 dwMinBitRate; | |
| __u32 dwMaxBitRate; | |
| __u32 dwMaxVideoFrameBufferSize; | |
| __u32 dwDefaultFrameInterval; | |
| __u8 bFrameIntervalType; | |
| __u32 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; \ | |
| __u16 wWidth; \ | |
| __u16 wHeight; \ | |
| __u32 dwMinBitRate; \ | |
| __u32 dwMaxBitRate; \ | |
| __u32 dwMaxVideoFrameBufferSize; \ | |
| __u32 dwDefaultFrameInterval; \ | |
| __u8 bFrameIntervalType; \ | |
| __u32 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 bmInterfaceFlags; | |
| __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; | |
| __u16 wWidth; | |
| __u16 wHeight; | |
| __u32 dwMinBitRate; | |
| __u32 dwMaxBitRate; | |
| __u32 dwMaxVideoFrameBufferSize; | |
| __u32 dwDefaultFrameInterval; | |
| __u8 bFrameIntervalType; | |
| __u32 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; \ | |
| __u16 wWidth; \ | |
| __u16 wHeight; \ | |
| __u32 dwMinBitRate; \ | |
| __u32 dwMaxBitRate; \ | |
| __u32 dwMaxVideoFrameBufferSize; \ | |
| __u32 dwDefaultFrameInterval; \ | |
| __u8 bFrameIntervalType; \ | |
| __u32 dwFrameInterval[n]; \ | |
| } __attribute__ ((packed)) | |
| #endif /* __LINUX_USB_VIDEO_H */ | |