Main/src-client/DrvAudioVRDE.cpp

5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync/* $Id$ */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync/** @file
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * VRDE audio backend for Main.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync/*
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync * Copyright (C) 2013-2015 Oracle Corporation
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync *
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * available from http://www.virtualbox.org. This file is free software;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * you can redistribute it and/or modify it under the terms of the GNU
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * General Public License (GPL) as published by the Free Software
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync */
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync/*******************************************************************************
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync*   Header Files                                                               *
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync*******************************************************************************/
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include "DrvAudioVRDE.h"
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include "ConsoleImpl.h"
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include "ConsoleVRDPServer.h"
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include "Logging.h"
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync#include "../../Devices/Audio/DrvAudio.h"
174f3dff60f96d89b320f9a322307118676db1dbvboxsync#include "../../Devices/Audio/AudioMixBuffer.h"
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync#include <iprt/mem.h>
174f3dff60f96d89b320f9a322307118676db1dbvboxsync#include <iprt/cdefs.h>
174f3dff60f96d89b320f9a322307118676db1dbvboxsync#include <iprt/circbuf.h>
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include <VBox/vmm/pdmaudioifs.h>
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include <VBox/vmm/pdmdrv.h>
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include <VBox/RemoteDesktop/VRDE.h>
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include <VBox/vmm/cfgm.h>
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync#include <VBox/err.h>
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync#undef LOG_GROUP
174f3dff60f96d89b320f9a322307118676db1dbvboxsync#define LOG_GROUP LOG_GROUP_DEV_AUDIO
174f3dff60f96d89b320f9a322307118676db1dbvboxsync#include <VBox/log.h>
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync/*******************************************************************************
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync*   Structures and Typedefs                                                    *
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync*******************************************************************************/
174f3dff60f96d89b320f9a322307118676db1dbvboxsync/**
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * Audio VRDE driver instance data.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsynctypedef struct DRVAUDIOVRDE
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** Pointer to audio VRDE object. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AudioVRDE           *pAudioVRDE;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PPDMDRVINS           pDrvIns;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** Pointer to the driver instance structure. */
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDMIHOSTAUDIO        IHostAudio;
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    /** Pointer to the VRDP's console object. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    ConsoleVRDPServer   *pConsoleVRDPServer;
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    /** Pointer to the DrvAudio port interface that is above us. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PPDMIAUDIOCONNECTOR  pDrvAudio;
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    /** Whether this driver is enabled or not. */
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    bool                 fEnabled;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync} DRVAUDIOVRDE, *PDRVAUDIOVRDE;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsynctypedef struct VRDESTREAMIN
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** Associated host input stream. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PDMAUDIOHSTSTRMIN    HstStrmIn;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** Number of samples captured asynchronously in the
174f3dff60f96d89b320f9a322307118676db1dbvboxsync     *  onVRDEInputXXX callbacks. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint32_t             cSamplesCaptured;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** Critical section. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    RTCRITSECT           CritSect;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync} VRDESTREAMIN, *PVRDESTREAMIN;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsynctypedef struct VRDESTREAMOUT
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** Associated host output stream. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PDMAUDIOHSTSTRMOUT HstStrmOut;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint64_t old_ticks;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint64_t cSamplesSentPerSec;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync} VRDESTREAMOUT, *PVRDESTREAMOUT;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDEInit(PPDMIHOSTAUDIO pInterface)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFuncEnter();
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return VINF_SUCCESS;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsyncstatic DECLCALLBACK(int) drvAudioVRDEInitIn(PPDMIHOSTAUDIO pInterface,
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync                                            PPDMAUDIOHSTSTRMIN pHstStrmIn, PPDMAUDIOSTREAMCFG pCfg,
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync                                            PDMAUDIORECSOURCE enmRecSource,
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync                                            uint32_t *pcSamples)
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync{
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    PVRDESTREAMIN pVRDEStrmIn = (PVRDESTREAMIN)pHstStrmIn;
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    AssertPtrReturn(pVRDEStrmIn, VERR_INVALID_POINTER);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    if (pcSamples)
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync        *pcSamples = _4K; /** @todo Make this configurable. */
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    return drvAudioStreamCfgToProps(pCfg, &pVRDEStrmIn->HstStrmIn.Props);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync}
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDEInitOut(PPDMIHOSTAUDIO pInterface,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                             PPDMAUDIOHSTSTRMOUT pHstStrmOut, PPDMAUDIOSTREAMCFG pCfg,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                             uint32_t *pcSamples)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFunc(("pHstStrmOut=%p, pCfg=%p\n", pHstStrmOut, pCfg));
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PVRDESTREAMOUT pVRDEStrmOut = (PVRDESTREAMOUT)pHstStrmOut;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pVRDEStrmOut, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (pcSamples)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        *pcSamples = _4K; /** @todo Make this configurable. */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return drvAudioStreamCfgToProps(pCfg, &pVRDEStrmOut->HstStrmOut.Props);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsyncstatic DECLCALLBACK(bool) drvAudioVRDEIsEnabled(PPDMIHOSTAUDIO pInterface, PDMAUDIODIR enmDir)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    AssertPtrReturn(pDrv, false);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    NOREF(enmDir);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    if (!pDrv->fEnabled)
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync        return false;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    return true;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync/**
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync * <Missing brief description>
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync *
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * Transfers audio input formerly sent by a connected RDP client / VRDE backend
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * (using the onVRDEInputXXX methods) over to the VRDE host (VM). The audio device
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * emulation then will read and send the data to the guest.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync *
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @return  IPRT status code.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pInterface
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pHstStrmIn
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pcSamplesCaptured
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDECaptureIn(PPDMIHOSTAUDIO pInterface, PPDMAUDIOHSTSTRMIN pHstStrmIn,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                               uint32_t *pcSamplesCaptured)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pHstStrmIn, VERR_INVALID_POINTER);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pcSamplesCaptured, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PVRDESTREAMIN pVRDEStrmIn = (PVRDESTREAMIN)pHstStrmIn;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pVRDEStrmIn, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** @todo Use CritSect! */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    int rc;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint32_t cProcessed = 0;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (pVRDEStrmIn->cSamplesCaptured)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    {
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        rc = audioMixBufMixToParent(&pVRDEStrmIn->HstStrmIn.MixBuf, pVRDEStrmIn->cSamplesCaptured,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                    &cProcessed);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    }
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    else
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        rc = VINF_SUCCESS;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (RT_SUCCESS(rc))
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    {
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        *pcSamplesCaptured = cProcessed;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        Assert(pVRDEStrmIn->cSamplesCaptured >= cProcessed);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        pVRDEStrmIn->cSamplesCaptured -= cProcessed;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    }
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFunc(("cSamplesCaptured=%RU32, cProcessed=%RU32\n",
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                 pVRDEStrmIn->cSamplesCaptured, cProcessed, rc));
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return rc;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync/**
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync * Transfers VM audio output to remote client.
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync *
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * Transfers VM audio output over to the VRDE instance for playing remotely
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * on the client.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync *
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @return  IPRT status code.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pInterface
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pHstStrmOut
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pcSamplesPlayed
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDEPlayOut(PPDMIHOSTAUDIO pInterface, PPDMAUDIOHSTSTRMOUT pHstStrmOut,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                             uint32_t *pcSamplesPlayed)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pInterface, VERR_INVALID_POINTER);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pHstStrmOut, VERR_INVALID_POINTER);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /* pcSamplesPlayed is optional. */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PVRDESTREAMOUT pVRDEStrmOut = (PVRDESTREAMOUT)pHstStrmOut;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pVRDEStrmOut, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /*
174f3dff60f96d89b320f9a322307118676db1dbvboxsync     * Just call the VRDP server with the data.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync     */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint32_t live = drvAudioHstOutSamplesLive(pHstStrmOut, NULL /* pcStreamsLive */);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint64_t now = PDMDrvHlpTMGetVirtualTime(pDrv->pDrvIns);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint64_t ticks = now  - pVRDEStrmOut->old_ticks;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint64_t ticks_per_second = PDMDrvHlpTMGetVirtualFreq(pDrv->pDrvIns);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint32_t cSamplesPlayed = (int)((2 * ticks * pHstStrmOut->Props.uHz + ticks_per_second) / ticks_per_second / 2);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (!cSamplesPlayed)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        cSamplesPlayed = live;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    VRDEAUDIOFORMAT format = VRDE_AUDIO_FMT_MAKE(pHstStrmOut->Props.uHz,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                                 pHstStrmOut->Props.cChannels,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                                 pHstStrmOut->Props.cBits,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                                 pHstStrmOut->Props.fSigned);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    pVRDEStrmOut->old_ticks = now;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    int cSamplesToSend = live;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync/*  if (!cSamplesToSend)
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    {
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync        if (pcSamplesPlayed)
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync            pcSamplesPlayed = 0;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync        return 0;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    }*/
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    LogFlowFunc(("uFreq=%RU32, cChan=%RU8, cBits=%RU8, fSigned=%RTbool, enmFormat=%ld, cSamplesToSend=%RU32\n",
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                 pHstStrmOut->Props.uHz, pHstStrmOut->Props.cChannels,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                 pHstStrmOut->Props.cBits, pHstStrmOut->Props.fSigned,
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync                 format, cSamplesToSend));
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint32_t cReadTotal = 0;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PPDMAUDIOSAMPLE pSamples;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint32_t cRead;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    int rc = audioMixBufAcquire(&pHstStrmOut->MixBuf, cSamplesToSend,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                &pSamples, &cRead);
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    if (   RT_SUCCESS(rc)
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync        && cRead)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    {
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        cReadTotal = cRead;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        pDrv->pConsoleVRDPServer->SendAudioSamples(pSamples, cRead, format);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        if (rc == VINF_TRY_AGAIN)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync        {
174f3dff60f96d89b320f9a322307118676db1dbvboxsync            rc = audioMixBufAcquire(&pHstStrmOut->MixBuf, cSamplesToSend - cRead,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                    &pSamples, &cRead);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync            if (RT_SUCCESS(rc))
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                pDrv->pConsoleVRDPServer->SendAudioSamples(pSamples, cRead, format);
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync            cReadTotal += cRead;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync        }
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    }
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    audioMixBufFinish(&pHstStrmOut->MixBuf, cSamplesToSend);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    /*
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync     * Always report back all samples acquired, regardless of whether the
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync     * VRDP server actually did process those.
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync     */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (pcSamplesPlayed)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        *pcSamplesPlayed = cReadTotal;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    LogFlowFunc(("cReadTotal=%RU32, rc=%Rrc\n", cReadTotal, rc));
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return rc;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDEFiniIn(PPDMIHOSTAUDIO pInterface, PPDMAUDIOHSTSTRMIN pHstStrmIn)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (pDrv->pConsoleVRDPServer)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        pDrv->pConsoleVRDPServer->SendAudioInputEnd(NULL);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return VINF_SUCCESS;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDEFiniOut(PPDMIHOSTAUDIO pInterface, PPDMAUDIOHSTSTRMOUT pHstStrmOut)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return VINF_SUCCESS;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDEControlOut(PPDMIHOSTAUDIO pInterface, PPDMAUDIOHSTSTRMOUT pHstStrmOut,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                                PDMAUDIOSTREAMCMD enmStreamCmd)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    PVRDESTREAMIN pVRDEStrmOut = (PVRDESTREAMIN)pHstStrmOut;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    AssertPtrReturn(pVRDEStrmOut, VERR_INVALID_POINTER);
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFunc(("enmStreamCmd=%ld\n", enmStreamCmd));
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    audioMixBufReset(&pHstStrmOut->MixBuf);
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return VINF_SUCCESS;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsyncstatic DECLCALLBACK(int) drvAudioVRDEControlIn(PPDMIHOSTAUDIO pInterface, PPDMAUDIOHSTSTRMIN pHstStrmIn,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                                               PDMAUDIOSTREAMCMD enmStreamCmd)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync{
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pDrv, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    PVRDESTREAMIN pVRDEStrmIn = (PVRDESTREAMIN)pHstStrmIn;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pVRDEStrmIn, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    PPDMAUDIOHSTSTRMIN pThisStrmIn = &pVRDEStrmIn->HstStrmIn;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFunc(("enmStreamCmd=%ld\n", enmStreamCmd));
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    if (!pDrv->pConsoleVRDPServer)
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync        return VINF_SUCCESS;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    audioMixBufReset(&pThisStrmIn->MixBuf);
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /* Initialize only if not already done. */
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    int rc;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (enmStreamCmd == PDMAUDIOSTREAMCMD_ENABLE)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    {
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync        rc = pDrv->pConsoleVRDPServer->SendAudioInputBegin(NULL, pVRDEStrmIn, audioMixBufSize(&pThisStrmIn->MixBuf),
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync                                                           pThisStrmIn->Props.uHz,
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync                                                           pThisStrmIn->Props.cChannels, pThisStrmIn->Props.cBits);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync        if (rc == VERR_NOT_SUPPORTED)
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync        {
174f3dff60f96d89b320f9a322307118676db1dbvboxsync            LogFlowFunc(("No RDP client connected, so no input recording supported\n"));
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync            rc = VINF_SUCCESS;
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync        }
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    }
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    else if (enmStreamCmd == PDMAUDIOSTREAMCMD_DISABLE)
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    {
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        pDrv->pConsoleVRDPServer->SendAudioInputEnd(NULL /* pvUserCtx */);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync        rc = VINF_SUCCESS;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync    }
97a3cb3696a8e4509f9de8372fd629f814fe8f61vboxsync    else
97a3cb3696a8e4509f9de8372fd629f814fe8f61vboxsync        rc = VERR_INVALID_PARAMETER;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    return rc;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(int) drvAudioVRDEGetConf(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDCFG pCfg)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    pCfg->cbStreamOut     = sizeof(VRDESTREAMOUT);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    pCfg->cbStreamIn      = sizeof(VRDESTREAMIN);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    pCfg->cMaxHstStrmsOut = 1;
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    pCfg->cMaxHstStrmsIn  = 2; /* Microphone in + Line in. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    return VINF_SUCCESS;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsyncstatic DECLCALLBACK(void) drvAudioVRDEShutdown(PPDMIHOSTAUDIO pInterface)
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsync{
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsync    PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
cfca7f1a17f0e05ad6cdf19639a812b2a2512c1evboxsync    AssertPtrReturnVoid(pDrv);
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsync
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsync    if (pDrv->pConsoleVRDPServer)
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsync        pDrv->pConsoleVRDPServer->SendAudioInputEnd(NULL);
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsync}
1705f7565ed8533058b8541d72d6c5d4453de00fvboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync/**
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @interface_method_impl{PDMIBASE,pfnQueryInterface}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncstatic DECLCALLBACK(void *) drvAudioVRDEQueryInterface(PPDMIBASE pInterface, const char *pszIID)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PDRVAUDIOVRDE pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIOVRDE);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHOSTAUDIO, &pThis->IHostAudio);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return NULL;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncAudioVRDE::AudioVRDE(Console *pConsole)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    : mpDrv(NULL),
174f3dff60f96d89b320f9a322307118676db1dbvboxsync      mParent(pConsole)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncAudioVRDE::~AudioVRDE(void)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (mpDrv)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    {
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        mpDrv->pAudioVRDE = NULL;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        mpDrv = NULL;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    }
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsyncint AudioVRDE::onVRDEControl(bool fEnable, uint32_t uFlags)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    LogFlowThisFunc(("fEnable=%RTbool, uFlags=0x%x\n", fEnable, uFlags));
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
a708b5b81c81f03f13980efee2262d4290ba03bevboxsync    if (mpDrv == NULL)
a708b5b81c81f03f13980efee2262d4290ba03bevboxsync        return VERR_INVALID_STATE;
a708b5b81c81f03f13980efee2262d4290ba03bevboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    mpDrv->fEnabled = fEnable;
6e4f0a21de35da7e77586bc1fab65d1bbf611eeevboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return VINF_SUCCESS; /* Never veto. */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync/**
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * Marks the beginning of sending captured audio data from a connected
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * RDP client.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync *
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @return  IPRT status code.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pvContext               The context; in this case a pointer to a
174f3dff60f96d89b320f9a322307118676db1dbvboxsync *                                  VRDESTREAMIN structure.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * @param   pVRDEAudioBegin         Pointer to a VRDEAUDIOINBEGIN structure.
174f3dff60f96d89b320f9a322307118676db1dbvboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncint AudioVRDE::onVRDEInputBegin(void *pvContext, PVRDEAUDIOINBEGIN pVRDEAudioBegin)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pvContext, VERR_INVALID_POINTER);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pVRDEAudioBegin, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PVRDESTREAMIN pVRDEStrmIn = (PVRDESTREAMIN)pvContext;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pVRDEStrmIn, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    VRDEAUDIOFORMAT audioFmt = pVRDEAudioBegin->fmt;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    int iSampleHz  = VRDE_AUDIO_FMT_SAMPLE_FREQ(audioFmt);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    int cChannels  = VRDE_AUDIO_FMT_CHANNELS(audioFmt);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    int cBits      = VRDE_AUDIO_FMT_BITS_PER_SAMPLE(audioFmt);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    bool fUnsigned = VRDE_AUDIO_FMT_SIGNED(audioFmt);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFunc(("cbSample=%RU32, iSampleHz=%d, cChannels=%d, cBits=%d, fUnsigned=%RTbool\n",
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                 VRDE_AUDIO_FMT_BYTES_PER_SAMPLE(audioFmt), iSampleHz, cChannels, cBits, fUnsigned));
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    return VINF_SUCCESS;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncint AudioVRDE::onVRDEInputData(void *pvContext, const void *pvData, uint32_t cbData)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PVRDESTREAMIN pVRDEStrmIn = (PVRDESTREAMIN)pvContext;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pVRDEStrmIn, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PPDMAUDIOHSTSTRMIN pHstStrmIn = &pVRDEStrmIn->HstStrmIn;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AssertPtrReturn(pHstStrmIn, VERR_INVALID_POINTER);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /** @todo Use CritSect! */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    uint32_t cWritten;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    int rc = audioMixBufWriteCirc(&pHstStrmIn->MixBuf, pvData, cbData, &cWritten);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    if (RT_SUCCESS(rc))
174f3dff60f96d89b320f9a322307118676db1dbvboxsync        pVRDEStrmIn->cSamplesCaptured += cWritten;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFunc(("cbData=%RU32, cWritten=%RU32, cSamplesCaptured=%RU32, rc=%Rrc\n",
174f3dff60f96d89b320f9a322307118676db1dbvboxsync                 cbData, cWritten, pVRDEStrmIn->cSamplesCaptured, rc));
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return rc;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncint AudioVRDE::onVRDEInputEnd(void *pvContext)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    NOREF(pvContext);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    return VINF_SUCCESS;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsyncint AudioVRDE::onVRDEInputIntercept(bool fEnabled)
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync{
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    return VINF_SUCCESS; /* Never veto. */
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync}
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync/**
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * Construct a VRDE audio driver instance.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync *
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync * @copydoc FNPDMDRVCONSTRUCT
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync/* static */
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncDECLCALLBACK(int) AudioVRDE::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    PDRVAUDIOVRDE pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIOVRDE);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    AssertPtrReturn(pDrvIns, VERR_INVALID_POINTER);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    AssertPtrReturn(pCfg, VERR_INVALID_POINTER);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogRel(("Audio: Initializing VRDE driver\n"));
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFunc(("fFlags=0x%x\n", fFlags));
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync                    ("Configuration error: Not possible to attach anything to this driver!\n"),
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync                    VERR_PDM_DRVINS_NO_ATTACH);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /*
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync     * Init the static parts.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync     */
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    pThis->pDrvIns                   = pDrvIns;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* IBase */
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    pDrvIns->IBase.pfnQueryInterface = drvAudioVRDEQueryInterface;
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    /* IHostAudio */
8a204879c937e7c55da35682a0e5d2e1df91c856vboxsync    PDMAUDIO_IHOSTAUDIO_CALLBACKS(drvAudioVRDE);
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    /* Init defaults. */
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    pThis->fEnabled = false;
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    /*
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync     * Get the ConsoleVRDPServer object pointer.
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync     */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    void *pvUser;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    int rc = CFGMR3QueryPtr(pCfg, "ObjectVRDPServer", &pvUser);
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    AssertMsgRCReturn(rc, ("Confguration error: No/bad \"ObjectVRDPServer\" value, rc=%Rrc\n", rc), rc);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /* CFGM tree saves the pointer to ConsoleVRDPServer in the Object node of AudioVRDE. */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    pThis->pConsoleVRDPServer = (ConsoleVRDPServer *)pvUser;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync    /*
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync     * Get the AudioVRDE object pointer.
e95cc69731ec79cf167e6167808e1c9b275ea007vboxsync     */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    pvUser = NULL;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    rc = CFGMR3QueryPtr(pCfg, "Object", &pvUser);
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    AssertMsgRCReturn(rc, ("Confguration error: No/bad \"Object\" value, rc=%Rrc\n", rc), rc);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    pThis->pAudioVRDE = (AudioVRDE *)pvUser;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    pThis->pAudioVRDE->mpDrv = pThis;
174f3dff60f96d89b320f9a322307118676db1dbvboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /*
174f3dff60f96d89b320f9a322307118676db1dbvboxsync     * Get the interface for the above driver (DrvAudio) to make mixer/conversion calls.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync     * Described in CFGM tree.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync     */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    pThis->pDrvAudio = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIAUDIOCONNECTOR);
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    AssertMsgReturn(pThis->pDrvAudio, ("Configuration error: No upper interface specified!\n"), VERR_PDM_MISSING_INTERFACE_ABOVE);
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    return VINF_SUCCESS;
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync/**
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync * @interface_method_impl{PDMDRVREG,pfnDestruct}
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync/* static */
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncDECLCALLBACK(void) AudioVRDE::drvDestruct(PPDMDRVINS pDrvIns)
174f3dff60f96d89b320f9a322307118676db1dbvboxsync{
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    PDRVAUDIOVRDE pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIOVRDE);
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    LogFlowFuncEnter();
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    /*
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync     * If the AudioVRDE object is still alive, we must clear it's reference to
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync     * us since we'll be invalid when we return from this method.
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync     */
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    if (pThis->pAudioVRDE)
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    {
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync        pThis->pAudioVRDE->mpDrv = NULL;
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync        pThis->pAudioVRDE = NULL;
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync    }
174f3dff60f96d89b320f9a322307118676db1dbvboxsync}
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync
0fed4ca8109741ca612d88f527b04c4b9289cd7fvboxsync
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync/**
174f3dff60f96d89b320f9a322307118676db1dbvboxsync * VRDE audio driver registration record.
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync */
174f3dff60f96d89b320f9a322307118676db1dbvboxsyncconst PDMDRVREG AudioVRDE::DrvReg =
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync{
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    PDM_DRVREG_VERSION,
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    /* szName */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    "AudioVRDE",
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* szRCMod */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    "",
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* szR0Mod */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    "",
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pszDescription */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    "Audio driver for VRDE backend",
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* fFlags */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* fClass. */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    PDM_DRVREG_CLASS_AUDIO,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* cMaxInstances */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    ~0U,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* cbInstance */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    sizeof(DRVAUDIOVRDE),
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnConstruct */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AudioVRDE::drvConstruct,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnDestruct */
174f3dff60f96d89b320f9a322307118676db1dbvboxsync    AudioVRDE::drvDestruct,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnRelocate */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnIOCtl */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnPowerOn */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnReset */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnSuspend */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnResume */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnAttach */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnDetach */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnPowerOff */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* pfnSoftReset */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    NULL,
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    /* u32EndVersion */
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync    PDM_DRVREG_VERSION
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync};
5f80794f0fac6c6ae43bf4d2baaef60babb2a7c7vboxsync