Index: trunk/include/VBox/RemoteDesktop/VRDEVideoIn.h
===================================================================
--- trunk/include/VBox/RemoteDesktop/VRDEVideoIn.h	(revision 43946)
+++ trunk/include/VBox/RemoteDesktop/VRDEVideoIn.h	(revision 43946)
@@ -0,0 +1,972 @@
+/** @file
+ * VBox Remote Desktop Extension (VRDE) - Video Input interface.
+ */
+
+/*
+ * Copyright (C) 2012 Oracle Corporation
+ *
+ * Oracle Corporation confidential
+ * All rights reserved
+ */
+
+#ifndef ___VBox_RemoteDesktop_VRDEVideoIn_h
+#define ___VBox_RemoteDesktop_VRDEVideoIn_h
+
+
+/* Define VRDE_VIDEOIN_WITH_VRDEINTERFACE to include the server VRDE interface parts. */
+
+#ifdef VRDE_VIDEOIN_WITH_VRDEINTERFACE
+#include <VBox/RemoteDesktop/VRDE.h>
+#endif /* VRDE_VIDEOIN_WITH_VRDEINTERFACE */
+
+#ifdef AssertCompileSize
+#define ASSERTSIZE(type, size) AssertCompileSize(type, size);
+#else
+#define ASSERTSIZE(type, size)
+#endif /* AssertCompileSize */
+
+
+/*
+ * Interface for accessing a video camera device on the client.
+ *
+ * Async callbacks are used for providing feedback, reporting errors, etc.
+ *
+ * Initial version supports: Camera + Processing Unit + Streaming Control.
+ *
+ * There are 2 modes:
+ * 1) The virtual WebCam is already attached to the guest.
+ * 2) The virtual WebCam will be attached when the client has it.
+ *
+ * Initially the mode 1 is supported.
+ *
+ * Mode 1 details:
+ * The WebCam has some fixed functionality, according to the descriptors,
+ * which has been already read by the guest. So some of functions will
+ * not work if the client does not support them.
+ *
+ * Mode 2 details:
+ * Virtual WebCam descriptors are built from the client capabilities.
+ *
+ * Similarly to the smartcard, the server will inform the ConsoleVRDE that there is a WebCam.
+ * ConsoleVRDE creates a VRDEVIDEOIN handle and forwards virtual WebCam requests to it.
+ *
+ * Interface with VBox.
+ *
+ *   Virtual WebCam         ConsoleVRDE                VRDE
+ *
+ *                                                 Negotiate <->
+ *                                              <- VideoInDeviceNotify(Attached, DeviceId)
+ *                       -> GetDeviceDesc
+ *                                              <- DeviceDesc
+ * 2                     <- CreateCamera
+ * 2  CameraCreated ->
+ *
+ *    CameraRequest ->      Request ->
+ *    Response <-        <- Response            <- Response
+ *    Frame <-           <- Frame               <- Frame
+ *                                              <- VideoInDeviceNotify(Detached, DeviceId)
+ *
+ * Unsupported requests fail.
+ * The Device Description received from the client may be used to validate WebCam requests
+ * in the ConsoleVRDE code, for example filter out unsupported requests.
+ *
+ */
+
+/* All structures in this file are packed.
+ * Everything is little-endian.
+ */
+#pragma pack(1)
+
+/*
+ * The interface supports generic video input descriptors, capabilities and controls:
+ *   * Descriptors
+ *     + Interface
+ *       - Input, Camera Terminal
+ *       - Processing Unit
+ *     + Video Streaming
+ *       - Input Header
+ *       - Payload Format
+ *       - Video Frame
+ *       - Still Image Frame
+ *   * Video Control requests
+ *     + Interface
+ *       - Power Mode
+ *     + Unit and Terminal
+ *       camera
+ *       - Scanning Mode (interlaced, progressive)
+ *       - Auto-Exposure Mode
+ *       - Auto-Exposure Priority
+ *       - Exposure Time Absolute, Relative
+ *       - Focus Absolute, Relative, Auto
+ *       - Iris Absolute, Relative
+ *       - Zoom Absolute, Relative
+ *       - PanTilt Absolute, Relative
+ *       - Roll Absolute, Relative
+ *       - Privacy
+ *       processing
+ *       - Backlight Compensation
+ *       - Brightness
+ *       - Contrast
+ *       - Gain
+ *       - Power Line Frequency
+ *       - Hue Manual, Auto
+ *       - Saturation
+ *       - Sharpness
+ *       - Gamma
+ *       - White Balance Temperature Manual, Auto
+ *       - White Balance Component Manual, Auto
+ *       - Digital Multiplier
+ *       - Digital Multiplier Limit
+ *   * Video Streaming requests
+ *     + Interface
+ *       - Synch Delay
+ *       - Still Image Trigger
+ *       - Generate Key Frame
+ *       - Update Frame Segment
+ *       - Stream Error Code
+ *
+ *
+ * Notes:
+ *   * still capture uses a method similar to method 2, because the still frame will
+ *     be send instead of video over the channel.
+ *     Also the method 2 can be in principle emulated by both 1 and 3 on the client.
+ *     However the client can initiate a still frame transfer, similar to hardware button trigger.
+ *   * all control changes are async.
+ *   * probe/commit are not used. The server can select a supported format/frame from the list.
+ *   * no color matching. sRGB is the default.
+ *   * most of constants are the same as in USB Video Class spec, but they are not the same and
+ *     should be always converted.
+ */
+
+/*
+ * The DEVICEDEC describes the device and provides a list of supported formats:
+ *     VRDEVIDEOINDEVICEDESC
+ *     VRDEVIDEOINFORMATDESC[0];
+ *     VRDEVIDEOINFRAMEDESC[0..N-1]
+ *     VRDEVIDEOINFORMATDESC[1];
+ *     VRDEVIDEOINFRAMEDESC[0..M-1]
+ *     ...
+ */
+
+typedef struct VRDEVIDEOINDEVICEDESC
+{
+    uint16_t u16ObjectiveFocalLengthMin;
+    uint16_t u16ObjectiveFocalLengthMax;
+    uint16_t u16OcularFocalLength;
+    uint16_t u16MaxMultiplier;
+    uint32_t fu32CameraControls;     /* VRDE_VIDEOIN_F_CT_CTRL_* */
+    uint32_t fu32ProcessingControls; /* VRDE_VIDEOIN_F_PU_CTRL_* */
+    uint8_t fu8DeviceCaps;           /* VRDE_VIDEOIN_F_DEV_CAP_* */
+    uint8_t u8NumFormats;            /* Number of following VRDEVIDEOINFORMATDESC structures. */
+    uint16_t cbExt;                  /* Size of the optional extended description. */
+    /* An extended description may follow. */
+    /* An array of VRDEVIDEOINFORMATDESC follows. */
+} VRDEVIDEOINDEVICEDESC;
+
+/* VRDEVIDEOINDEVICEDESC::fu32CameraControls */
+#define VRDE_VIDEOIN_F_CT_CTRL_SCANNING_MODE            0x00000001 /* D0: Scanning Mode */
+#define VRDE_VIDEOIN_F_CT_CTRL_AE_MODE                  0x00000002 /* D1: Auto-Exposure Mode */
+#define VRDE_VIDEOIN_F_CT_CTRL_AE_PRIORITY              0x00000004 /* D2: Auto-Exposure Priority */
+#define VRDE_VIDEOIN_F_CT_CTRL_EXPOSURE_TIME_ABSOLUTE   0x00000008 /* D3: Exposure Time (Absolute) */
+#define VRDE_VIDEOIN_F_CT_CTRL_EXPOSURE_TIME_RELATIVE   0x00000010 /* D4: Exposure Time (Relative) */
+#define VRDE_VIDEOIN_F_CT_CTRL_FOCUS_ABSOLUTE           0x00000020 /* D5: Focus (Absolute) */
+#define VRDE_VIDEOIN_F_CT_CTRL_FOCUS_RELATIVE           0x00000040 /* D6: Focus (Relative) */
+#define VRDE_VIDEOIN_F_CT_CTRL_IRIS_ABSOLUTE            0x00000080 /* D7: Iris (Absolute) */
+#define VRDE_VIDEOIN_F_CT_CTRL_IRIS_RELATIVE            0x00000100 /* D8: Iris (Relative) */
+#define VRDE_VIDEOIN_F_CT_CTRL_ZOOM_ABSOLUTE            0x00000200 /* D9: Zoom (Absolute) */
+#define VRDE_VIDEOIN_F_CT_CTRL_ZOOM_RELATIVE            0x00000400 /* D10: Zoom (Relative) */
+#define VRDE_VIDEOIN_F_CT_CTRL_PANTILT_ABSOLUTE         0x00000800 /* D11: PanTilt (Absolute) */
+#define VRDE_VIDEOIN_F_CT_CTRL_PANTILT_RELATIVE         0x00001000 /* D12: PanTilt (Relative) */
+#define VRDE_VIDEOIN_F_CT_CTRL_ROLL_ABSOLUTE            0x00002000 /* D13: Roll (Absolute) */
+#define VRDE_VIDEOIN_F_CT_CTRL_ROLL_RELATIVE            0x00004000 /* D14: Roll (Relative) */
+#define VRDE_VIDEOIN_F_CT_CTRL_RESERVED1                0x00008000 /* D15: Reserved */
+#define VRDE_VIDEOIN_F_CT_CTRL_RESERVED2                0x00010000 /* D16: Reserved */
+#define VRDE_VIDEOIN_F_CT_CTRL_FOCUS_AUTO               0x00020000 /* D17: Focus, Auto */
+#define VRDE_VIDEOIN_F_CT_CTRL_PRIVACY                  0x00040000 /* D18: Privacy */
+
+/* VRDEVIDEOINDEVICEDESC::fu32ProcessingControls */
+#define VRDE_VIDEOIN_F_PU_CTRL_BRIGHTNESS                0x00000001 /* D0: Brightness */
+#define VRDE_VIDEOIN_F_PU_CTRL_CONTRAST                  0x00000002 /* D1: Contrast */
+#define VRDE_VIDEOIN_F_PU_CTRL_HUE                       0x00000004 /* D2: Hue */
+#define VRDE_VIDEOIN_F_PU_CTRL_SATURATION                0x00000008 /* D3: Saturation */
+#define VRDE_VIDEOIN_F_PU_CTRL_SHARPNESS                 0x00000010 /* D4: Sharpness */
+#define VRDE_VIDEOIN_F_PU_CTRL_GAMMA                     0x00000020 /* D5: Gamma */
+#define VRDE_VIDEOIN_F_PU_CTRL_WHITE_BALANCE_TEMPERATURE 0x00000040 /* D6: White Balance Temperature */
+#define VRDE_VIDEOIN_F_PU_CTRL_WHITE_BALANCE_COMPONENT   0x00000080 /* D7: White Balance Component */
+#define VRDE_VIDEOIN_F_PU_CTRL_BACKLIGHT_COMPENSATION    0x00000100 /* D8: Backlight Compensation */
+#define VRDE_VIDEOIN_F_PU_CTRL_GAIN                      0x00000200 /* D9: Gain */
+#define VRDE_VIDEOIN_F_PU_CTRL_POWER_LINE_FREQUENCY      0x00000400 /* D10: Power Line Frequency */
+#define VRDE_VIDEOIN_F_PU_CTRL_HUE_AUTO                  0x00000800 /* D11: Hue, Auto */
+#define VRDE_VIDEOIN_F_PU_CTRL_WHITE_BALANCE_TEMPERATURE_AUTO 0x00001000 /* D12: White Balance Temperature, Auto */
+#define VRDE_VIDEOIN_F_PU_CTRL_WHITE_BALANCE_COMPONENT_AUTO   0x00002000 /* D13: White Balance Component, Auto */
+#define VRDE_VIDEOIN_F_PU_CTRL_DIGITAL_MULTIPLIER        0x00004000 /* D14: Digital Multiplier */
+#define VRDE_VIDEOIN_F_PU_CTRL_DIGITAL_MULTIPLIER_LIMIT  0x00008000 /* D15: Digital Multiplier Limit */
+
+/* VRDEVIDEOINDEVICEDESC::fu8DeviceCaps */
+#define VRDE_VIDEOIN_F_DEV_CAP_DYNAMICCHANGE   0x01 /* Whether dynamic format change is supported. */
+#define VRDE_VIDEOIN_F_DEV_CAP_TRIGGER         0x02 /* Whether hardware triggering is supported. */
+#define VRDE_VIDEOIN_F_DEV_CAP_TRIGGER_USAGE   0x04 /* 0 - still image, 1 - generic button event.*/
+
+/* The video format descriptor. */
+typedef struct VRDEVIDEOINFORMATDESC
+{
+    uint16_t cbFormat;     /* Size of the structure including cbFormat and format specific data. */
+    uint8_t u8FormatId;    /* The unique identifier of the format on the client. */
+    uint8_t u8FormatType;  /* MJPEG etc. VRDE_VIDEOIN_FORMAT_* */
+    uint8_t u8FormatFlags; /* VRDE_VIDEOIN_F_FMT_* */ 
+    uint8_t u8NumFrames;   /* Number of following VRDEVIDEOINFRAMEDESC structures. */
+    uint16_t u16Reserved;  /* Must be set to 0. */
+    /* Other format specific data may follow. */
+    /* An array of VRDEVIDEOINFRAMEDESC follows. */
+} VRDEVIDEOINFORMATDESC;
+
+/* VRDEVIDEOINFORMATDESC::u8FormatType */
+#define VRDE_VIDEOIN_FORMAT_UNCOMPRESSED 0x04
+#define VRDE_VIDEOIN_FORMAT_MJPEG        0x06
+#define VRDE_VIDEOIN_FORMAT_MPEG2TS      0x0A
+#define VRDE_VIDEOIN_FORMAT_DV           0x0C
+#define VRDE_VIDEOIN_FORMAT_FRAME_BASED  0x10
+#define VRDE_VIDEOIN_FORMAT_STREAM_BASED 0x12
+
+/* VRDEVIDEOINFORMATDESC::u8FormatFlags. */
+#define VRDE_VIDEOIN_F_FMT_GENERATEKEYFRAME   0x01 /* Supports Generate Key Frame */
+#define VRDE_VIDEOIN_F_FMT_UPDATEFRAMESEGMENT 0x02 /* Supports Update Frame Segment */
+#define VRDE_VIDEOIN_F_FMT_COPYPROTECT        0x04 /* If duplication should be restricted. */
+#define VRDE_VIDEOIN_F_FMT_COMPQUALITY        0x08 /* If the format supports an adjustable compression quality. */
+
+typedef struct VRDEVIDEOINFRAMESIZE
+{
+    uint16_t u16Width;
+    uint16_t u16Height;
+} VRDEVIDEOINFRAMESIZE;
+
+typedef struct VRDEVIDEOINFRAMEDESC
+{
+    uint16_t cbFrame;      /* Size of the structure including cbFrame and frame specific data. */
+    uint8_t  u8FrameId;    /* The unique identifier of the frame for the corresponding format on the client. */
+    uint8_t  u8FrameFlags;
+    VRDEVIDEOINFRAMESIZE frameSize;
+    uint32_t u32NumFrameIntervals; /* The number of supported frame intervals. */
+    uint32_t u32MinFrameInterval;  /* Shortest frame interval supported (at highest frame rate), in 100ns units. */
+    uint32_t u32MaxFrameInterval;  /* Longest frame interval supported (at lowest frame rate), in 100ns units. */
+    /* Other frame specific data may follow. */
+} VRDEVIDEOINFRAMEDESC;
+
+/* VRDEVIDEOINFRAMEDESC::u8FrameFlags. */
+#define VRDE_VIDEOIN_F_FRM_STILL              0x01 /* If still images are supported for this frame. */
+
+/*
+ * Controls.
+ *
+ * The same structures are used for both SET and GET requests.
+ * Requests are async. A callback is invoked, when the client returns a reply.
+ * A control change notification also uses these structures.
+ *
+ * If a control request can not be fulfilled, then VRDE_VIDEOIN_CTRLHDR_F_FAIL
+ * will be set and u8Status contains the error code. This replaces the VC_REQUEST_ERROR_CODE_CONTROL.
+ */
+
+typedef struct VRDEVIDEOINCTRLHDR
+{
+    uint16_t u16ControlSelector; /* VRDE_VIDEOIN_CTRLSEL_* */
+    uint16_t u16RequestType;     /* VRDE_VIDEOIN_CTRLREQ_* */
+    uint16_t u16ParmSize;        /* The size of the control specific parameters. */
+    uint8_t u8Flags;             /* VRDE_VIDEOIN_CTRLHDR_F_* */
+    uint8_t u8Status;            /* VRDE_VIDEOIN_CTRLHDR_STATUS_* */
+    /* Control specific data follows. */
+} VRDEVIDEOINCTRLHDR;
+
+/* Control request types: VRDEVIDEOINCTRLHDR::u16RequestType. */
+#define VRDE_VIDEOIN_CTRLREQ_UNDEFINED 0x00
+#define VRDE_VIDEOIN_CTRLREQ_SET_CUR   0x01
+#define VRDE_VIDEOIN_CTRLREQ_GET_CUR   0x81
+#define VRDE_VIDEOIN_CTRLREQ_GET_MIN   0x82
+#define VRDE_VIDEOIN_CTRLREQ_GET_MAX   0x83
+#define VRDE_VIDEOIN_CTRLREQ_GET_RES   0x84
+#define VRDE_VIDEOIN_CTRLREQ_GET_LEN   0x85
+#define VRDE_VIDEOIN_CTRLREQ_GET_INFO  0x86
+#define VRDE_VIDEOIN_CTRLREQ_GET_DEF   0x87
+
+/* VRDEVIDEOINCTRLHDR::u8Flags */
+#define VRDE_VIDEOIN_CTRLHDR_F_NOTIFY 0x01 /* Control change notification, the attribute is derived from u16RequestType and F_FAIL. */
+#define VRDE_VIDEOIN_CTRLHDR_F_FAIL   0x02 /* The operation failed. Error code is in u8Status. */
+
+/* VRDEVIDEOINCTRLHDR::u8Status if the VRDE_VIDEOIN_CTRLHDR_F_FAIL is set. */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_SUCCESS        0x00 /**/
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_NOTREADY       0x01 /* Not ready */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_WRONGSTATE     0x02 /* Wrong state */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_POWER          0x03 /* Power */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_OUTOFRANGE     0x04 /* Out of range */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_INVALIDUNIT    0x05 /* Invalid unit */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_INVALIDCONTROL 0x06 /* Invalid control */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_INVALIDREQUEST 0x07 /* Invalid Request */
+#define VRDE_VIDEOIN_CTRLHDR_STATUS_UNKNOWN        0xFF /* Unknown */
+
+/* Control selectors. 16 bit. High byte is the category. Low byte is the identifier.*/
+#ifdef RT_MAKE_U16
+#define VRDE_VIDEOIN_CTRLSEL_MAKE(Lo, Hi) RT_MAKE_U16(Lo, Hi)
+#else
+#define VRDE_VIDEOIN_CTRLSEL_MAKE(Lo, Hi) ((uint16_t)( (uint16_t)((uint8_t)(Hi)) << 8 | (uint8_t)(Lo) ))
+#endif
+
+#define VRDE_VIDEOIN_CTRLSEL_VC(a) VRDE_VIDEOIN_CTRLSEL_MAKE(a, 0x01)
+#define VRDE_VIDEOIN_CTRLSEL_CT(a) VRDE_VIDEOIN_CTRLSEL_MAKE(a, 0x02)
+#define VRDE_VIDEOIN_CTRLSEL_PU(a) VRDE_VIDEOIN_CTRLSEL_MAKE(a, 0x03)
+#define VRDE_VIDEOIN_CTRLSEL_VS(a) VRDE_VIDEOIN_CTRLSEL_MAKE(a, 0x04)
+#define VRDE_VIDEOIN_CTRLSEL_HW(a) VRDE_VIDEOIN_CTRLSEL_MAKE(a, 0x05)
+
+#define VRDE_VIDEOIN_CTRLSEL_VC_VIDEO_POWER_MODE_CONTROL   VRDE_VIDEOIN_CTRLSEL_VC(0x01)
+
+#define VRDE_VIDEOIN_CTRLSEL_CT_UNDEFINED                 VRDE_VIDEOIN_CTRLSEL_CT(0x00)
+#define VRDE_VIDEOIN_CTRLSEL_CT_SCANNING_MODE             VRDE_VIDEOIN_CTRLSEL_CT(0x01)
+#define VRDE_VIDEOIN_CTRLSEL_CT_AE_MODE                   VRDE_VIDEOIN_CTRLSEL_CT(0x02)
+#define VRDE_VIDEOIN_CTRLSEL_CT_AE_PRIORITY               VRDE_VIDEOIN_CTRLSEL_CT(0x03)
+#define VRDE_VIDEOIN_CTRLSEL_CT_EXPOSURE_TIME_ABSOLUTE    VRDE_VIDEOIN_CTRLSEL_CT(0x04)
+#define VRDE_VIDEOIN_CTRLSEL_CT_EXPOSURE_TIME_RELATIVE    VRDE_VIDEOIN_CTRLSEL_CT(0x05)
+#define VRDE_VIDEOIN_CTRLSEL_CT_FOCUS_ABSOLUTE            VRDE_VIDEOIN_CTRLSEL_CT(0x06)
+#define VRDE_VIDEOIN_CTRLSEL_CT_FOCUS_RELATIVE            VRDE_VIDEOIN_CTRLSEL_CT(0x07)
+#define VRDE_VIDEOIN_CTRLSEL_CT_FOCUS_AUTO                VRDE_VIDEOIN_CTRLSEL_CT(0x08)
+#define VRDE_VIDEOIN_CTRLSEL_CT_IRIS_ABSOLUTE             VRDE_VIDEOIN_CTRLSEL_CT(0x09)
+#define VRDE_VIDEOIN_CTRLSEL_CT_IRIS_RELATIVE             VRDE_VIDEOIN_CTRLSEL_CT(0x0A)
+#define VRDE_VIDEOIN_CTRLSEL_CT_ZOOM_ABSOLUTE             VRDE_VIDEOIN_CTRLSEL_CT(0x0B)
+#define VRDE_VIDEOIN_CTRLSEL_CT_ZOOM_RELATIVE             VRDE_VIDEOIN_CTRLSEL_CT(0x0C)
+#define VRDE_VIDEOIN_CTRLSEL_CT_PANTILT_ABSOLUTE          VRDE_VIDEOIN_CTRLSEL_CT(0x0D)
+#define VRDE_VIDEOIN_CTRLSEL_CT_PANTILT_RELATIVE          VRDE_VIDEOIN_CTRLSEL_CT(0x0E)
+#define VRDE_VIDEOIN_CTRLSEL_CT_ROLL_ABSOLUTE             VRDE_VIDEOIN_CTRLSEL_CT(0x0F)
+#define VRDE_VIDEOIN_CTRLSEL_CT_ROLL_RELATIVE             VRDE_VIDEOIN_CTRLSEL_CT(0x10)
+#define VRDE_VIDEOIN_CTRLSEL_CT_PRIVACY                   VRDE_VIDEOIN_CTRLSEL_CT(0x11)
+
+#define VRDE_VIDEOIN_CTRLSEL_PU_UNDEFINED                 VRDE_VIDEOIN_CTRLSEL_PU(0x00)
+#define VRDE_VIDEOIN_CTRLSEL_PU_BACKLIGHT_COMPENSATION    VRDE_VIDEOIN_CTRLSEL_PU(0x01)
+#define VRDE_VIDEOIN_CTRLSEL_PU_BRIGHTNESS                VRDE_VIDEOIN_CTRLSEL_PU(0x02)
+#define VRDE_VIDEOIN_CTRLSEL_PU_CONTRAST                  VRDE_VIDEOIN_CTRLSEL_PU(0x03)
+#define VRDE_VIDEOIN_CTRLSEL_PU_GAIN                      VRDE_VIDEOIN_CTRLSEL_PU(0x04)
+#define VRDE_VIDEOIN_CTRLSEL_PU_POWER_LINE_FREQUENCY      VRDE_VIDEOIN_CTRLSEL_PU(0x05)
+#define VRDE_VIDEOIN_CTRLSEL_PU_HUE                       VRDE_VIDEOIN_CTRLSEL_PU(0x06)
+#define VRDE_VIDEOIN_CTRLSEL_PU_SATURATION                VRDE_VIDEOIN_CTRLSEL_PU(0x07)
+#define VRDE_VIDEOIN_CTRLSEL_PU_SHARPNESS                 VRDE_VIDEOIN_CTRLSEL_PU(0x08)
+#define VRDE_VIDEOIN_CTRLSEL_PU_GAMMA                     VRDE_VIDEOIN_CTRLSEL_PU(0x09)
+#define VRDE_VIDEOIN_CTRLSEL_PU_WHITE_BALANCE_TEMPERATURE VRDE_VIDEOIN_CTRLSEL_PU(0x0A)
+#define VRDE_VIDEOIN_CTRLSEL_PU_WHITE_BALANCE_TEMPERATURE_AUTO VRDE_VIDEOIN_CTRLSEL_PU(0x0B)
+#define VRDE_VIDEOIN_CTRLSEL_PU_WHITE_BALANCE_COMPONENT   VRDE_VIDEOIN_CTRLSEL_PU(0x0C)
+#define VRDE_VIDEOIN_CTRLSEL_PU_WHITE_BALANCE_COMPONENT_AUTO VRDE_VIDEOIN_CTRLSEL_PU(0x0D)
+#define VRDE_VIDEOIN_CTRLSEL_PU_DIGITAL_MULTIPLIER        VRDE_VIDEOIN_CTRLSEL_PU(0x0E)
+#define VRDE_VIDEOIN_CTRLSEL_PU_DIGITAL_MULTIPLIER_LIMIT  VRDE_VIDEOIN_CTRLSEL_PU(0x0F)
+#define VRDE_VIDEOIN_CTRLSEL_PU_HUE_AUTO                  VRDE_VIDEOIN_CTRLSEL_PU(0x10)
+#define VRDE_VIDEOIN_CTRLSEL_PU_ANALOG_VIDEO_STANDARD     VRDE_VIDEOIN_CTRLSEL_PU(0x11)
+#define VRDE_VIDEOIN_CTRLSEL_PU_ANALOG_LOCK_STATUS        VRDE_VIDEOIN_CTRLSEL_PU(0x12)
+
+#define VRDE_VIDEOIN_CTRLSEL_VS_UNDEFINED                 VRDE_VIDEOIN_CTRLSEL_VS(0x00)
+#define VRDE_VIDEOIN_CTRLSEL_VS_START                     VRDE_VIDEOIN_CTRLSEL_VS(0x01)
+#define VRDE_VIDEOIN_CTRLSEL_VS_STOP                      VRDE_VIDEOIN_CTRLSEL_VS(0x02)
+#define VRDE_VIDEOIN_CTRLSEL_VS_STILL_IMAGE_TRIGGER       VRDE_VIDEOIN_CTRLSEL_VS(0x05)
+#define VRDE_VIDEOIN_CTRLSEL_VS_STREAM_ERROR_CODE         VRDE_VIDEOIN_CTRLSEL_VS(0x06)
+#define VRDE_VIDEOIN_CTRLSEL_VS_GENERATE_KEY_FRAME        VRDE_VIDEOIN_CTRLSEL_VS(0x07)
+#define VRDE_VIDEOIN_CTRLSEL_VS_UPDATE_FRAME_SEGMENT      VRDE_VIDEOIN_CTRLSEL_VS(0x08)
+#define VRDE_VIDEOIN_CTRLSEL_VS_SYNCH_DELAY               VRDE_VIDEOIN_CTRLSEL_VS(0x09)
+
+#define VRDE_VIDEOIN_CTRLSEL_HW_BUTTON                    VRDE_VIDEOIN_CTRLSEL_HW(0x01)
+
+typedef struct VRDEVIDEOINCTRL_VIDEO_POWER_MODE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8DevicePowerMode;
+} VRDEVIDEOINCTRL_VIDEO_POWER_MODE;
+
+typedef struct VRDEVIDEOINCTRL_CT_SCANNING_MODE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8ScanningMode;
+} VRDEVIDEOINCTRL_CT_SCANNING_MODE;
+
+typedef struct VRDEVIDEOINCTRL_CT_AE_MODE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8AutoExposureMode;
+} VRDEVIDEOINCTRL_CT_AE_MODE;
+
+typedef struct VRDEVIDEOINCTRL_CT_AE_PRIORITY
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8AutoExposurePriority;
+} VRDEVIDEOINCTRL_CT_AE_PRIORITY;
+
+typedef struct VRDEVIDEOINCTRL_CT_EXPOSURE_TIME_ABSOLUTE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint32_t u32ExposureTimeAbsolute;
+} VRDEVIDEOINCTRL_CT_EXPOSURE_TIME_ABSOLUTE;
+
+typedef struct VRDEVIDEOINCTRL_CT_EXPOSURE_TIME_RELATIVE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8ExposureTimeRelative;
+} VRDEVIDEOINCTRL_CT_EXPOSURE_TIME_RELATIVE;
+
+typedef struct VRDEVIDEOINCTRL_CT_FOCUS_ABSOLUTE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16FocusAbsolute;
+} VRDEVIDEOINCTRL_CT_FOCUS_ABSOLUTE;
+
+typedef struct VRDEVIDEOINCTRL_CT_FOCUS_RELATIVE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8FocusRelative;
+    uint8_t u8Speed;
+} VRDEVIDEOINCTRL_CT_FOCUS_RELATIVE;
+
+typedef struct VRDEVIDEOINCTRL_CT_FOCUS_AUTO
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8FocusAuto;
+} VRDEVIDEOINCTRL_CT_FOCUS_AUTO;
+
+typedef struct VRDEVIDEOINCTRL_CT_IRIS_ABSOLUTE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16IrisAbsolute;
+} VRDEVIDEOINCTRL_CT_IRIS_ABSOLUTE;
+
+typedef struct VRDEVIDEOINCTRL_CT_IRIS_RELATIVE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8IrisRelative;
+} VRDEVIDEOINCTRL_CT_IRIS_RELATIVE;
+
+typedef struct VRDEVIDEOINCTRL_CT_ZOOM_ABSOLUTE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16ZoomAbsolute;
+} VRDEVIDEOINCTRL_CT_ZOOM_ABSOLUTE;
+
+typedef struct VRDEVIDEOINCTRL_CT_ZOOM_RELATIVE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8Zoom;
+    uint8_t u8DigitalZoom;
+    uint8_t u8Speed;
+} VRDEVIDEOINCTRL_CT_ZOOM_RELATIVE;
+
+typedef struct VRDEVIDEOINCTRL_CT_PANTILT_ABSOLUTE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint32_t u32PanAbsolute;
+    uint32_t u32TiltAbsolute;
+} VRDEVIDEOINCTRL_CT_PANTILT_ABSOLUTE;
+
+typedef struct VRDEVIDEOINCTRL_CT_PANTILT_RELATIVE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8PanRelative;
+    uint8_t u8PanSpeed;
+    uint8_t u8TiltRelative;
+    uint8_t u8TiltSpeed;
+} VRDEVIDEOINCTRL_CT_PANTILT_RELATIVE;
+
+typedef struct VRDEVIDEOINCTRL_CT_ROLL_ABSOLUTE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16RollAbsolute;
+} VRDEVIDEOINCTRL_CT_ROLL_ABSOLUTE;
+
+typedef struct VRDEVIDEOINCTRL_CT_ROLL_RELATIVE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8RollRelative;
+    uint8_t u8Speed;
+} VRDEVIDEOINCTRL_CT_ROLL_RELATIVE;
+
+typedef struct VRDEVIDEOINCTRL_CT_PRIVACY_MODE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8Privacy;
+} VRDEVIDEOINCTRL_CT_PRIVACY_MODE;
+
+typedef struct VRDEVIDEOINCTRL_PU_BACKLIGHT_COMPENSATION
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16BacklightCompensation;
+} VRDEVIDEOINCTRL_PU_BACKLIGHT_COMPENSATION;
+
+typedef struct VRDEVIDEOINCTRL_PU_BRIGHTNESS
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Brightness;
+} VRDEVIDEOINCTRL_PU_BRIGHTNESS;
+
+typedef struct VRDEVIDEOINCTRL_PU_CONTRAST
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Contrast;
+} VRDEVIDEOINCTRL_PU_CONTRAST;
+
+typedef struct VRDEVIDEOINCTRL_PU_GAIN
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Gain;
+} VRDEVIDEOINCTRL_PU_GAIN;
+
+typedef struct VRDEVIDEOINCTRL_PU_POWER_LINE_FREQUENCY
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16PowerLineFrequency;
+} VRDEVIDEOINCTRL_PU_POWER_LINE_FREQUENCY;
+
+typedef struct VRDEVIDEOINCTRL_PU_HUE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Hue;
+} VRDEVIDEOINCTRL_PU_HUE;
+
+typedef struct VRDEVIDEOINCTRL_PU_HUE_AUTO
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8HueAuto;
+} VRDEVIDEOINCTRL_PU_HUE_AUTO;
+
+typedef struct VRDEVIDEOINCTRL_PU_SATURATION
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Saturation;
+} VRDEVIDEOINCTRL_PU_SATURATION;
+
+typedef struct VRDEVIDEOINCTRL_PU_SHARPNESS
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Sharpness;
+} VRDEVIDEOINCTRL_PU_SHARPNESS;
+
+typedef struct VRDEVIDEOINCTRL_PU_GAMMA
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Gamma;
+} VRDEVIDEOINCTRL_PU_GAMMA;
+
+typedef struct VRDEVIDEOINCTRL_PU_WHITE_BALANCE_TEMPERATURE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16WhiteBalanceTemperature;
+} VRDEVIDEOINCTRL_PU_WHITE_BALANCE_TEMPERATURE;
+
+typedef struct VRDEVIDEOINCTRL_PU_WHITE_BALANCE_TEMPERATURE_AUTO
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8WhiteBalanceTemperatureAuto;
+} VRDEVIDEOINCTRL_PU_WHITE_BALANCE_TEMPERATURE_AUTO;
+
+typedef struct VRDEVIDEOINCTRL_PU_WHITE_BALANCE_COMPONENT
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16WhiteBalanceBlue;
+    uint16_t u16WhiteBalanceRed;
+} VRDEVIDEOINCTRL_PU_WHITE_BALANCE_COMPONENT;
+
+typedef struct VRDEVIDEOINCTRL_PU_WHITE_BALANCE_COMPONENT_AUTO
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8WhiteBalanceComponentAuto;
+} VRDEVIDEOINCTRL_PU_WHITE_BALANCE_COMPONENT_AUTO;
+
+typedef struct VRDEVIDEOINCTRL_PU_DIGITAL_MULTIPLIER
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16MultiplierStep;
+} VRDEVIDEOINCTRL_PU_DIGITAL_MULTIPLIER;
+
+typedef struct VRDEVIDEOINCTRL_PU_DIGITAL_MULTIPLIER_LIMIT
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16MultiplierLimit;
+} VRDEVIDEOINCTRL_PU_DIGITAL_MULTIPLIER_LIMIT;
+
+typedef struct VRDEVIDEOINCTRL_PU_ANALOG_VIDEO_STANDARD
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8VideoStandard;
+} VRDEVIDEOINCTRL_PU_ANALOG_VIDEO_STANDARD;
+
+typedef struct VRDEVIDEOINCTRL_PU_ANALOG_LOCK_STATUS
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8Status;
+} VRDEVIDEOINCTRL_PU_ANALOG_LOCK_STATUS;
+
+/* Start sending video frames with this format. */
+#define VRDEVIDEOINCTRL_F_VS_START_FID 0x01
+#define VRDEVIDEOINCTRL_F_VS_START_EOF 0x02
+
+typedef struct VRDEVIDEOINCTRL_VS_START
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8FormatId;             /* The format id on the client: VRDEVIDEOINFORMATDESC::u8FormatId. */
+    uint8_t u8FramingInfo;          /* VRDEVIDEOINCTRL_F_VS_START_*. Set by the client. */
+    VRDEVIDEOINFRAMESIZE frameSize;
+    uint32_t u32FrameInterval;      /* Frame interval in 100 ns units, 0 means a still image capture.
+                                     * The client may choose a different interval if this value is
+                                     * not supported.
+                                     */
+    uint16_t u16CompQuality;        /* 0 .. 10000 = 0 .. 100%.
+                                     * Applicable if the format has VRDE_VIDEOIN_F_FMT_COMPQUALITY,
+                                     * otherwise this field is ignored.
+                                     */
+    uint16_t u16Delay;              /* Latency in ms from video data capture to presentation on the channel.
+                                     * Set by the client, read by the server.
+                                     */
+    uint32_t u32ClockFrequency;     /* @todo just all clocks in 100ns units? */
+} VRDEVIDEOINCTRL_VS_START;
+
+/* Stop sending video frames. */
+typedef struct VRDEVIDEOINCTRL_VS_STOP
+{
+    VRDEVIDEOINCTRLHDR hdr;
+} VRDEVIDEOINCTRL_VS_STOP;
+
+typedef struct VRDEVIDEOINCTRL_VS_SYNCH_DELAY
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint16_t u16Delay;
+} VRDEVIDEOINCTRL_VS_SYNCH_DELAY;
+
+typedef struct VRDEVIDEOINCTRL_VS_STILL_IMAGE_TRIGGER
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8Trigger;
+} VRDEVIDEOINCTRL_VS_STILL_IMAGE_TRIGGER;
+
+typedef struct VRDEVIDEOINCTRL_VS_GENERATE_KEY_FRAME
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8GenerateKeyFrame;
+} VRDEVIDEOINCTRL_VS_GENERATE_KEY_FRAME;
+
+typedef struct VRDEVIDEOINCTRL_VS_UPDATE_FRAME_SEGMENT
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8StartFrameSegment;
+    uint8_t u8EndFrameSegment;
+} VRDEVIDEOINCTRL_VS_UPDATE_FRAME_SEGMENT;
+
+typedef struct VRDEVIDEOINCTRL_VS_STREAM_ERROR_CODE
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8StreamErrorCode;
+} VRDEVIDEOINCTRL_VS_STREAM_ERROR_CODE;
+
+/* A hardware button was pressed/released on the device. */
+typedef struct VRDEVIDEOINCTRL_HW_BUTTON
+{
+    VRDEVIDEOINCTRLHDR hdr;
+    uint8_t u8Pressed;
+} VRDEVIDEOINCTRL_CT_HW_BUTTON;
+
+/*
+ * Payload transfers. How frames are sent to the server:
+ * the client send a PAYLOAD packet, which has the already set format.
+ * The server enables the transfers by sending VRDEVIDEOINCTRL_VS_START.
+ */
+
+/* Payload header */
+typedef struct VRDEVIDEOINPAYLOADHDR
+{
+    uint8_t u8HeaderLength;       /* Entire header. */
+    uint8_t u8HeaderInfo;         /* VRDE_VIDEOIN_PAYLOAD_F_* */
+    uint32_t u32PresentationTime; /* @todo define this */
+    uint32_t u32SourceTimeClock;  /* @todo At the moment when the frame was sent to the channel.
+                                   * Allows the server to measure clock drift.
+                                   */
+    uint16_t u16Reserved;         /* @todo */
+} VRDEVIDEOINPAYLOADHDR;
+
+/* VRDEVIDEOINPAYLOADHDR::u8HeaderInfo */
+#define VRDE_VIDEOIN_PAYLOAD_F_FID     0x01 /* Frame ID */
+#define VRDE_VIDEOIN_PAYLOAD_F_EOF     0x02 /* End of Frame */
+#define VRDE_VIDEOIN_PAYLOAD_F_PTS     0x04 /* Presentation Time */
+#define VRDE_VIDEOIN_PAYLOAD_F_SCR     0x08 /* Source Clock Reference */
+#define VRDE_VIDEOIN_PAYLOAD_F_RES     0x10 /* Reserved */
+#define VRDE_VIDEOIN_PAYLOAD_F_STI     0x20 /* Still Image */
+#define VRDE_VIDEOIN_PAYLOAD_F_ERR     0x40 /* Error */
+#define VRDE_VIDEOIN_PAYLOAD_F_EOH     0x80 /* End of header */
+
+
+/*
+ * The network channel specification.
+ */
+
+/*
+ * The protocol uses a dynamic RDP channel.
+ * Everything is little-endian.
+ */
+
+#define VRDE_VIDEOIN_CHANNEL "RVIDEOIN"
+
+/* Major functions. */
+#define VRDE_VIDEOIN_FN_NEGOTIATE  0x0000 /* Version and capabilities check. */
+#define VRDE_VIDEOIN_FN_NOTIFY     0x0001 /* Device attach/detach from the client. */
+#define VRDE_VIDEOIN_FN_DEVICEDESC 0x0002 /* Query device description. */
+#define VRDE_VIDEOIN_FN_CONTROL    0x0003 /* Control the device and start/stop video input. */
+#define VRDE_VIDEOIN_FN_CONTROL_NOTIFY 0x0004 /* The client reports a control change, etc. */
+#define VRDE_VIDEOIN_FN_FRAME      0x0005 /* Frame from the client. */
+
+/* Status codes. */
+#define VRDE_VIDEOIN_STATUS_SUCCESS       0 /* Function completed successfully. */
+#define VRDE_VIDEOIN_STATUS_FAILED        1 /* Failed for some reason. */
+
+typedef struct VRDEVIDEOINMSGHDR
+{
+    uint32_t u32Length;     /* The length of the message in bytes, including the header. */
+    uint32_t u32DeviceId;   /* The client's device id. */
+    uint32_t u32MessageId;  /* Unique id assigned by the server. The client must send a reply with the same id.
+                             * If the client initiates a request, then this must be set to 0, because there is
+                             * currently no client requests, which would require a response from the server.
+                             */
+    uint16_t u16FunctionId; /* VRDE_VIDEOIN_FN_* */
+    uint16_t u16Status;     /* The result of a request. VRDE_VIDEOIN_STATUS_*. */
+} VRDEVIDEOINMSGHDR;
+ASSERTSIZE(VRDEVIDEOINMSGHDR, 16)
+
+/*
+ * VRDE_VIDEOIN_FN_NEGOTIATE
+ *
+ * Sent by the server when the channel is established and the client replies with its capabilities. 
+ */
+#define VRDE_VIDEOIN_NEGOTIATE_VERSION 1
+
+#define VRDE_VIDEOIN_NEGOTIATE_CAP_VOID 0
+
+typedef struct VRDEVIDEOINMSG_NEGOTIATE
+{
+    VRDEVIDEOINMSGHDR hdr;
+    uint32_t u32Version;       /* VRDE_VIDEOIN_NEGOTIATE_VERSION */
+    uint32_t fu32Capabilities; /* VRDE_VIDEOIN_NEGOTIATE_CAP_* */
+} VRDEVIDEOINMSG_NEGOTIATE;
+
+/*
+ * VRDE_VIDEOIN_FN_NOTIFY
+ *
+ * Sent by the client when a webcam is attached or detached.
+ * The client must send the ATTACH notification for each webcam, which is
+ * already connected to the client when the VIDEOIN channel is established.
+ */
+#define VRDE_VIDEOIN_NOTIFY_ATTACH 0
+#define VRDE_VIDEOIN_NOTIFY_DETACH 1
+
+typedef struct VRDEVIDEOINMSG_NOTIFY
+{
+    VRDEVIDEOINMSGHDR hdr;
+    uint32_t u32NotifyEvent; /* VRDE_VIDEOIN_NOTIFY_* */
+    /* Event specific data may follow. The underlying protocol provides the length of the message. */
+} VRDEVIDEOINMSG_NOTIFY;
+
+/*
+ * VRDE_VIDEOIN_FN_DEVICEDESC
+ *
+ * The server queries the description of a device.
+ */
+typedef struct VRDEVIDEOINMSG_DEVICEDESC_REQ
+{
+    VRDEVIDEOINMSGHDR hdr;
+} VRDEVIDEOINMSG_DEVICEDESC_REQ;
+
+typedef struct VRDEVIDEOINMSG_DEVICEDESC_RSP
+{
+    VRDEVIDEOINMSGHDR hdr;
+    VRDEVIDEOINDEVICEDESC Device;
+    /* 
+     * VRDEVIDEOINFORMATDESC[0]
+     * VRDEVIDEOINFRAMEDESC[0]
+     * ...
+     * VRDEVIDEOINFRAMEDESC[n]
+     * VRDEVIDEOINFORMATDESC[1]
+     * VRDEVIDEOINFRAMEDESC[0]
+     * ...
+     * VRDEVIDEOINFRAMEDESC[m]
+     * ...
+     */
+} VRDEVIDEOINMSG_DEVICEDESC_RSP;
+
+/*
+ * VRDE_VIDEOIN_FN_CONTROL
+ * VRDE_VIDEOIN_FN_CONTROL_NOTIFY
+ *
+ * Either sent by the server or by the client as a notification/response.
+ * If sent by the client as a notification, then hdr.u32MessageId must be 0.
+ */
+typedef struct VRDEVIDEOINMSG_CONTROL
+{
+    VRDEVIDEOINMSGHDR hdr;
+    VRDEVIDEOINCTRLHDR Control;
+    /* Control specific data may follow. */
+} VRDEVIDEOINMSG_CONTROL;
+
+/*
+ * VRDE_VIDEOIN_FN_FRAME
+ *
+ * The client sends a video/still frame in the already specified format.
+ * hdr.u32MessageId must be 0.
+ */
+typedef struct VRDEVIDEOINMSG_FRAME
+{
+    VRDEVIDEOINMSGHDR hdr;
+    VRDEVIDEOINPAYLOADHDR Payload;
+    /* The frame data follow. */
+} VRDEVIDEOINMSG_FRAME;
+
+
+#ifdef VRDE_VIDEOIN_WITH_VRDEINTERFACE
+/*
+ * The application interface between VirtualBox and the VRDE server.
+ */
+
+#define VRDE_VIDEOIN_INTERFACE_NAME "VIDEOIN"
+
+typedef struct VRDEVIDEOINDEVICEHANDLE
+{
+    uint32_t u32ClientId;
+    uint32_t u32DeviceId;
+} VRDEVIDEOINDEVICEHANDLE;
+
+/* The VRDE server video input interface entry points. Interface version 1. */
+typedef struct VRDEVIDEOININTERFACE
+{
+    /* The header. */
+    VRDEINTERFACEHDR header;
+
+    /* Tell the server that this device will be used and associate a context with the device.
+     *
+     * @param hServer The VRDE server instance.
+     * @param pDeviceHandle The device reported by ATTACH notification.
+     * @param pvDeviceCtx The caller context associated with the pDeviceHandle.
+     *
+     * @return IPRT status code.
+     */
+    DECLR3CALLBACKMEMBER(int, VRDEVideoInDeviceAttach, (HVRDESERVER hServer,
+                                                        const VRDEVIDEOINDEVICEHANDLE *pDeviceHandle,
+                                                        void *pvDeviceCtx));
+
+    /* This device will be not be used anymore. The device context must not be used by the server too.
+     *
+     * @param hServer The VRDE server instance.
+     * @param pDeviceHandle The device reported by ATTACH notification.
+     *
+     * @return IPRT status code.
+     */
+    DECLR3CALLBACKMEMBER(int, VRDEVideoInDeviceDetach, (HVRDESERVER hServer,
+                                                        const VRDEVIDEOINDEVICEHANDLE *pDeviceHandle));
+
+    /* Get a device description.
+     *
+     * @param hServer The VRDE server instance.
+     * @param pvUser  The callers context of this request.
+     * @param pDeviceHandle The device reported by ATTACH notification.
+     *
+     * @return IPRT status code.
+     */
+    DECLR3CALLBACKMEMBER(int, VRDEVideoInGetDeviceDesc, (HVRDESERVER hServer,
+                                                         void *pvUser,
+                                                         const VRDEVIDEOINDEVICEHANDLE *pDeviceHandle));
+
+    /* Submit a set/get control request.
+     *
+     * @param hServer The VRDE server instance.
+     * @param pvUser  The callers context of this request.
+     * @param pDeviceHandle The device reported by ATTACH notification.
+     * @param pReq  The request.
+     * @param cbReq Size of the request.
+     *
+     * @return IPRT status code.
+     */
+    DECLR3CALLBACKMEMBER(int, VRDEVideoInControl, (HVRDESERVER hServer,
+                                                   void *pvUser,
+                                                   const VRDEVIDEOINDEVICEHANDLE *pDeviceHandle,
+                                                   VRDEVIDEOINCTRLHDR *pReq,
+                                                   uint32_t cbReq));
+
+} VRDEVIDEOININTERFACE;
+
+
+/*
+ * Notifications.
+ * Data structures: pvData of VRDEVIDEOINCALLBACKS::VRDECallbackVideoInNotify.
+ */
+typedef struct VRDEVIDEOINNOTIFYATTACH
+{
+   VRDEVIDEOINDEVICEHANDLE deviceHandle;
+} VRDEVIDEOINNOTIFYATTACH;
+
+typedef struct VRDEVIDEOINNOTIFYDETACH
+{
+   VRDEVIDEOINDEVICEHANDLE deviceHandle;
+} VRDEVIDEOINNOTIFYDETACH;
+
+
+/* Video input interface callbacks. */
+typedef struct VRDEVIDEOINCALLBACKS
+{
+    /** The header. */
+    VRDEINTERFACEHDR header;
+
+    /* Notifications.
+     *
+     * @param pvCallback The callbacks context specified in VRDEGetInterface.
+     * @param u32EventId The notification identifier: VRDE_VIDEOIN_NOTIFY_*.
+     * @param pvData     The notification specific data.
+     * @param cbData     The size of buffer pointed by pvData.
+     */
+    DECLR3CALLBACKMEMBER(void, VRDECallbackVideoInNotify,(void *pvCallback,
+                                                          uint32_t u32Id,
+                                                          const void *pvData,
+                                                          uint32_t cbData));
+
+    /* Device description received from the client.
+     *
+     * @param pvCallback The callbacks context specified in VRDEGetInterface.
+     * @param rcRequest  The result code of the request.
+     * @param pDeviceCtx The device context associated with the device in VRDEVideoInGetDeviceDesc.
+     * @param pvUser     The pvUser parameter of VRDEVideoInGetDeviceDesc.
+     * @param pDeviceDesc The device description.
+     * @param cbDevice   The size of buffer pointed by pDevice.
+     */
+    DECLR3CALLBACKMEMBER(void, VRDECallbackVideoInDeviceDesc,(void *pvCallback,
+                                                              int rcRequest,
+                                                              void *pDeviceCtx,
+                                                              void *pvUser,
+                                                              const VRDEVIDEOINDEVICEDESC *pDeviceDesc,
+                                                              uint32_t cbDevice));
+
+    /* Control response or notification.
+     *
+     * @param pvCallback The callbacks context specified in VRDEGetInterface.
+     * @param rcRequest  The result code of the request.
+     * @param pDeviceCtx The device context associated with the device in VRDEVideoInGetDeviceDesc.
+     * @param pvUser     The pvUser parameter of VRDEVideoInControl. NULL if this is a notification.
+     * @param pControl   The control information.
+     * @param cbControl  The size of buffer pointed by pControl.
+     */
+    DECLR3CALLBACKMEMBER(void, VRDECallbackVideoInControl,(void *pvCallback,
+                                                           int rcRequest,
+                                                           void *pDeviceCtx,
+                                                           void *pvUser,
+                                                           const VRDEVIDEOINCTRLHDR *pControl,
+                                                           uint32_t cbControl));
+
+    /* Frame which was received from the client.
+     *
+     * @param pvCallback The callbacks context specified in VRDEGetInterface.
+     * @param rcRequest  The result code of the request.
+     * @param pDeviceCtx The device context associated with the device in VRDEVideoInGetDeviceDesc.
+     * @param pFrame     The frame data.
+     * @param cbFrame    The size of buffer pointed by pFrame.
+     */
+    DECLR3CALLBACKMEMBER(void, VRDECallbackVideoInFrame,(void *pvCallback,
+                                                         int rcRequest,
+                                                         void *pDeviceCtx,
+                                                         const VRDEVIDEOINPAYLOADHDR *pFrame,
+                                                         uint32_t cbFrame));
+
+} VRDEVIDEOINCALLBACKS;
+#endif /* VRDE_VIDEOIN_WITH_VRDEINTERFACE */
+
+#pragma pack()
+
+#endif
