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+/** @file
+ * VBox Remote Desktop Extension (VRDE) - Video Input interface.
+ */
+
+/*
+ * Copyright (C) 2012-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef VBOX_INCLUDED_RemoteDesktop_VRDEVideoIn_h
+#define VBOX_INCLUDED_RemoteDesktop_VRDEVideoIn_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+
+/* 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 */
+
+#include <iprt/types.h>
+
+
+/*
+ * 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.*/
+
+/* VRDEVIDEOINDEVICEDESC extended description. */
+typedef struct VRDEVIDEOINDEVICEEXT
+{
+ uint32_t fu32Fields;
+ /* One or more VRDEVIDEOINDEVICEFIELD follow. */
+} VRDEVIDEOINDEVICEEXT;
+
+typedef struct VRDEVIDEOINDEVICEFIELDHDR
+{
+ uint16_t cbField; /* Number of bytes reserved for this field. */
+} VRDEVIDEOINDEVICEFIELDHDR;
+
+/* VRDEVIDEOINDEVICEDESC::fu32Fields */
+#define VRDE_VIDEOIN_F_DEV_EXT_NAME 0x00000001 /* Utf8 device name. */
+#define VRDE_VIDEOIN_F_DEV_EXT_SERIAL 0x00000002 /* Utf8 device serial number. */
+
+/* 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 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;
+ uint16_t u16Width;
+ uint16_t u16Height;
+ 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. */
+ /* Supported frame intervals (in 100ns units) follow if VRDE_VIDEOIN_F_FRM_DISCRETE_INTERVALS is set.
+ * uint32_t au32FrameIntervals[u32NumFrameIntervals];
+ */
+ /* Supported min and max bitrate in bits per second follow if VRDE_VIDEOIN_F_FRM_BITRATE is set.
+ * uint32_t u32MinBitRate;
+ * uint32_t u32MaxBitRate;
+ */
+ /* Other frame specific data may follow. */
+} VRDEVIDEOINFRAMEDESC;
+
+/* VRDEVIDEOINFRAMEDESC::u8FrameFlags. */
+#define VRDE_VIDEOIN_F_FRM_STILL 0x01 /* If still images are supported for this frame. */
+#define VRDE_VIDEOIN_F_FRM_DISCRETE_INTERVALS 0x02 /* If the discrete intervals list is included. */
+#define VRDE_VIDEOIN_F_FRM_BITRATE 0x04 /* If the bitrate fields are included. */
+#define VRDE_VIDEOIN_F_FRM_SIZE_OF_FIELDS 0x08 /* If the all optional fields start with 16 bit field size. */
+
+/*
+ * 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.
+ *
+ * If the client receives an unsupported control, then the client must ignore it.
+ * That is the control request must not affect the client in any way.
+ * The client may send a VRDEVIDEOINCTRLHDR response for the unsupported control with:
+ * u16ControlSelector = the received value;
+ * u16RequestType = the received value;
+ * u16ParmSize = 0;
+ * u8Flags = VRDE_VIDEOIN_CTRLHDR_F_FAIL;
+ * u8Status = VRDE_VIDEOIN_CTRLHDR_STATUS_INVALIDCONTROL;
+ */
+
+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_PROT(a) VRDE_VIDEOIN_CTRLSEL_MAKE(a, 0x06)
+
+#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_SETUP VRDE_VIDEOIN_CTRLSEL_VS(0x01)
+#define VRDE_VIDEOIN_CTRLSEL_VS_OFF VRDE_VIDEOIN_CTRLSEL_VS(0x02)
+#define VRDE_VIDEOIN_CTRLSEL_VS_ON VRDE_VIDEOIN_CTRLSEL_VS(0x03)
+#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)
+
+#define VRDE_VIDEOIN_CTRLSEL_PROT_PING VRDE_VIDEOIN_CTRLSEL_PROT(0x01)
+#define VRDE_VIDEOIN_CTRLSEL_PROT_SAMPLING VRDE_VIDEOIN_CTRLSEL_PROT(0x02)
+#define VRDE_VIDEOIN_CTRLSEL_PROT_FRAMES VRDE_VIDEOIN_CTRLSEL_PROT(0x03)
+
+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;
+
+/* Set streaming parameters. The actual streaming will be enabled by VS_ON. */
+#define VRDEVIDEOINCTRL_F_VS_SETUP_FID 0x01
+#define VRDEVIDEOINCTRL_F_VS_SETUP_EOF 0x02
+
+typedef struct VRDEVIDEOINCTRL_VS_SETUP
+{
+ VRDEVIDEOINCTRLHDR hdr;
+ uint8_t u8FormatId; /* The format id on the client: VRDEVIDEOINFORMATDESC::u8FormatId. */
+ uint8_t u8FramingInfo; /* VRDEVIDEOINCTRL_F_VS_SETUP_*. Set by the client. */
+ uint16_t u16Width;
+ uint16_t u16Height;
+ 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_SETUP;
+
+/* Stop sending video frames. */
+typedef struct VRDEVIDEOINCTRL_VS_OFF
+{
+ VRDEVIDEOINCTRLHDR hdr;
+} VRDEVIDEOINCTRL_VS_OFF;
+
+/* Start sending video frames with parameters set by VS_SETUP. */
+typedef struct VRDEVIDEOINCTRL_VS_ON
+{
+ VRDEVIDEOINCTRLHDR hdr;
+} VRDEVIDEOINCTRL_VS_ON;
+
+typedef struct VRDEVIDEOINCTRL_VS_STILL_IMAGE_TRIGGER
+{
+ VRDEVIDEOINCTRLHDR hdr;
+ uint8_t u8Trigger;
+} VRDEVIDEOINCTRL_VS_STILL_IMAGE_TRIGGER;
+
+typedef struct VRDEVIDEOINCTRL_VS_STREAM_ERROR_CODE
+{
+ VRDEVIDEOINCTRLHDR hdr;
+ uint8_t u8StreamErrorCode;
+} VRDEVIDEOINCTRL_VS_STREAM_ERROR_CODE;
+
+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_SYNCH_DELAY
+{
+ VRDEVIDEOINCTRLHDR hdr;
+ uint16_t u16Delay;
+} VRDEVIDEOINCTRL_VS_SYNCH_DELAY;
+
+/* A hardware button was pressed/released on the device. */
+typedef struct VRDEVIDEOINCTRL_HW_BUTTON
+{
+ VRDEVIDEOINCTRLHDR hdr;
+ uint8_t u8Pressed;
+} VRDEVIDEOINCTRL_HW_BUTTON;
+
+typedef struct VRDEVIDEOINCTRL_PROT_PING
+{
+ VRDEVIDEOINCTRLHDR hdr;
+ uint32_t u32Timestamp; /* Set in the request and the same value must be send back in the response. */
+} VRDEVIDEOINCTRL_PROT_PING;
+
+typedef struct VRDEVIDEOINCTRL_PROT_SAMPLING
+{
+ VRDEVIDEOINCTRLHDR hdr;
+ uint32_t fu32SampleStart; /* Which parameters must be sampled VRDEVIDEOINCTRL_F_PROT_SAMPLING_*. */
+ uint32_t fu32SampleStop; /* Which parameters to disable VRDEVIDEOINCTRL_F_PROT_SAMPLING_*.
+ * If both Start and Stop is set, then restart the sampling.
+ */
+ uint32_t u32PeriodMS; /* Sampling period in milliseconds. Applies to all samples in fu32SampleStart.
+ * Not mandatory, the actual sampling period may be different.
+ */
+} VRDEVIDEOINCTRL_PROT_SAMPLING;
+
+#define VRDEVIDEOINCTRL_F_PROT_SAMPLING_FRAMES_SOURCE 0x00000001 /* Periodic VRDEVIDEOINCTRL_PROT_FRAMES samples */
+#define VRDEVIDEOINCTRL_F_PROT_SAMPLING_FRAMES_CLIENT_OUT 0x00000002 /* Periodic VRDEVIDEOINCTRL_PROT_FRAMES samples */
+
+typedef struct VRDEVIDEOINCTRL_PROT_FRAMES
+{
+ VRDEVIDEOINCTRLHDR hdr; /* Note: the message should be sent as VRDE_VIDEOIN_FN_CONTROL_NOTIFY. */
+ uint32_t u32Sample; /* Which sample is this, one of VRDEVIDEOINCTRL_F_PROT_SAMPLING_*. */
+ uint32_t u32TimestampMS; /* When the period started, milliseconds since the start of sampling. */
+ uint32_t u32PeriodMS; /* Actual period during which the frames were counted in milliseconds.
+ * This may be different from VRDEVIDEOINCTRL_PROT_SAMPLING::u32PeriodMS.
+ */
+ uint32_t u32FramesCount; /* How many frames per u32PeriodMS milliseconds. */
+} VRDEVIDEOINCTRL_PROT_FRAMES;
+
+
+/*
+ * 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_ON.
+ */
+
+/* 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.
+ */
+
+/* The dynamic RDP channel name. */
+#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.
+ * This function is used for sending a request and
+ * the corresponding response.
+ */
+#define VRDE_VIDEOIN_FN_CONTROL_NOTIFY 0x0004 /* The client reports a control change, etc.
+ * This function indicated that the message is
+ * not a response to a CONTROL request.
+ */
+#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
+
+/* VRDEVIDEOINMSG_NEGOTIATE::fu32Capabilities */
+#define VRDE_VIDEOIN_NEGOTIATE_CAP_VOID 0x00000000
+#define VRDE_VIDEOIN_NEGOTIATE_CAP_PROT 0x00000001 /* Supports VRDE_VIDEOIN_CTRLSEL_PROT_* controls. */
+
+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_EVENT_ATTACH 0
+#define VRDE_VIDEOIN_NOTIFY_EVENT_DETACH 1
+#define VRDE_VIDEOIN_NOTIFY_EVENT_NEGOTIATE 2 /* Negotiate again with the client. */
+
+typedef struct VRDEVIDEOINMSG_NOTIFY
+{
+ VRDEVIDEOINMSGHDR hdr;
+ uint32_t u32NotifyEvent; /* VRDE_VIDEOIN_NOTIFY_EVENT_* */
+ /* 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,
+ const VRDEVIDEOINCTRLHDR *pReq,
+ uint32_t cbReq));
+
+} VRDEVIDEOININTERFACE;
+
+
+/*
+ * Notifications.
+ * Data structures: pvData of VRDEVIDEOINCALLBACKS::VRDECallbackVideoInNotify.
+ */
+typedef struct VRDEVIDEOINNOTIFYATTACH
+{
+ VRDEVIDEOINDEVICEHANDLE deviceHandle;
+ uint32_t u32Version; /* VRDE_VIDEOIN_NEGOTIATE_VERSION */
+ uint32_t fu32Capabilities; /* VRDE_VIDEOIN_NEGOTIATE_CAP_* */
+} VRDEVIDEOINNOTIFYATTACH;
+
+typedef struct VRDEVIDEOINNOTIFYDETACH
+{
+ VRDEVIDEOINDEVICEHANDLE deviceHandle;
+} VRDEVIDEOINNOTIFYDETACH;
+
+/* Notification codes, */
+#define VRDE_VIDEOIN_NOTIFY_ID_ATTACH 0
+#define VRDE_VIDEOIN_NOTIFY_ID_DETACH 1
+
+
+/* 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 cbDeviceDesc The size of buffer pointed by pDevice.
+ */
+ DECLR3CALLBACKMEMBER(void, VRDECallbackVideoInDeviceDesc,(void *pvCallback,
+ int rcRequest,
+ void *pDeviceCtx,
+ void *pvUser,
+ const VRDEVIDEOINDEVICEDESC *pDeviceDesc,
+ uint32_t cbDeviceDesc));
+
+ /* 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 /* !VBOX_INCLUDED_RemoteDesktop_VRDEVideoIn_h */