1 | /* $Id: DrvAudioVRDE.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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2 | /** @file
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3 | * VRDE audio backend for Main.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2013-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 |
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29 | /*********************************************************************************************************************************
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30 | * Header Files *
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31 | *********************************************************************************************************************************/
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32 | #define LOG_GROUP LOG_GROUP_DRV_HOST_AUDIO
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33 | #include "LoggingNew.h"
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34 |
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35 | #include <VBox/log.h>
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36 | #include "DrvAudioVRDE.h"
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37 | #include "ConsoleImpl.h"
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38 | #include "ConsoleVRDPServer.h"
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39 |
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40 | #include <iprt/mem.h>
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41 | #include <iprt/cdefs.h>
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42 | #include <iprt/circbuf.h>
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43 |
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44 | #include <VBox/vmm/cfgm.h>
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45 | #include <VBox/vmm/pdmdrv.h>
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46 | #include <VBox/vmm/pdmaudioifs.h>
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47 | #include <VBox/vmm/pdmaudioinline.h>
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48 | #include <VBox/vmm/vmmr3vtable.h>
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49 | #include <VBox/RemoteDesktop/VRDE.h>
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50 | #include <VBox/err.h>
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51 |
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52 |
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53 | /*********************************************************************************************************************************
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54 | * Structures and Typedefs *
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55 | *********************************************************************************************************************************/
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56 | /**
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57 | * VRDE stream.
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58 | */
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59 | typedef struct VRDESTREAM
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60 | {
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61 | /** Common part. */
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62 | PDMAUDIOBACKENDSTREAM Core;
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63 | /** The stream's acquired configuration. */
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64 | PDMAUDIOSTREAMCFG Cfg;
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65 | union
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66 | {
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67 | struct
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68 | {
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69 | /** Circular buffer for holding the recorded audio frames from the host. */
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70 | PRTCIRCBUF pCircBuf;
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71 | } In;
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72 | };
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73 | } VRDESTREAM;
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74 | /** Pointer to a VRDE stream. */
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75 | typedef VRDESTREAM *PVRDESTREAM;
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76 |
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77 | /**
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78 | * VRDE (host) audio driver instance data.
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79 | */
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80 | typedef struct DRVAUDIOVRDE
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81 | {
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82 | /** Pointer to audio VRDE object. */
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83 | AudioVRDE *pAudioVRDE;
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84 | /** Pointer to the driver instance structure. */
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85 | PPDMDRVINS pDrvIns;
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86 | /** Pointer to the VRDP's console object. */
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87 | ConsoleVRDPServer *pConsoleVRDPServer;
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88 | /** Number of connected clients to this VRDE instance. */
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89 | uint32_t cClients;
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90 | /** Interface to the driver above us (DrvAudio). */
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91 | PDMIHOSTAUDIOPORT *pIHostAudioPort;
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92 | /** Pointer to host audio interface. */
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93 | PDMIHOSTAUDIO IHostAudio;
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94 | } DRVAUDIOVRDE;
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95 | /** Pointer to the instance data for an VRDE audio driver. */
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96 | typedef DRVAUDIOVRDE *PDRVAUDIOVRDE;
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97 |
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98 |
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99 | /*********************************************************************************************************************************
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100 | * Class AudioVRDE *
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101 | *********************************************************************************************************************************/
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102 |
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103 | AudioVRDE::AudioVRDE(Console *pConsole)
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104 | : AudioDriver(pConsole)
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105 | , mpDrv(NULL)
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106 | {
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107 | RTCritSectInit(&mCritSect);
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108 | }
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109 |
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110 |
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111 | AudioVRDE::~AudioVRDE(void)
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112 | {
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113 | RTCritSectEnter(&mCritSect);
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114 | if (mpDrv)
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115 | {
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116 | mpDrv->pAudioVRDE = NULL;
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117 | mpDrv = NULL;
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118 | }
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119 | RTCritSectLeave(&mCritSect);
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120 | RTCritSectDelete(&mCritSect);
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121 | }
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122 |
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123 |
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124 | int AudioVRDE::configureDriver(PCFGMNODE pLunCfg, PCVMMR3VTABLE pVMM)
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125 | {
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126 | return AudioDriver::configureDriver(pLunCfg, pVMM);
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127 | }
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128 |
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129 |
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130 | void AudioVRDE::onVRDEClientConnect(uint32_t uClientID)
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131 | {
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132 | RT_NOREF(uClientID);
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133 |
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134 | RTCritSectEnter(&mCritSect);
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135 | if (mpDrv)
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136 | {
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137 | mpDrv->cClients++;
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138 | LogRel2(("Audio: VRDE client connected (#%u)\n", mpDrv->cClients));
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139 |
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140 | #if 0 /* later, maybe */
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141 | /*
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142 | * The first client triggers a device change event in both directions
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143 | * so that can start talking to the audio device.
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144 | *
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145 | * Note! Should be okay to stay in the critical section here, as it's only
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146 | * used at construction and destruction time.
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147 | */
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148 | if (mpDrv->cClients == 1)
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149 | {
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150 | VMSTATE enmState = PDMDrvHlpVMState(mpDrv->pDrvIns);
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151 | if (enmState <= VMSTATE_POWERING_OFF)
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152 | {
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153 | PDMIHOSTAUDIOPORT *pIHostAudioPort = mpDrv->pIHostAudioPort;
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154 | AssertPtr(pIHostAudioPort);
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155 | pIHostAudioPort->pfnNotifyDeviceChanged(pIHostAudioPort, PDMAUDIODIR_OUT, NULL /*pvUser*/);
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156 | pIHostAudioPort->pfnNotifyDeviceChanged(pIHostAudioPort, PDMAUDIODIR_IN, NULL /*pvUser*/);
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157 | }
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158 | }
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159 | #endif
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160 | }
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161 | RTCritSectLeave(&mCritSect);
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162 | }
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163 |
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164 |
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165 | void AudioVRDE::onVRDEClientDisconnect(uint32_t uClientID)
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166 | {
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167 | RT_NOREF(uClientID);
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168 |
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169 | RTCritSectEnter(&mCritSect);
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170 | if (mpDrv)
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171 | {
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172 | Assert(mpDrv->cClients > 0);
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173 | mpDrv->cClients--;
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174 | LogRel2(("Audio: VRDE client disconnected (%u left)\n", mpDrv->cClients));
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175 | #if 0 /* later maybe */
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176 | /*
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177 | * The last client leaving triggers a device change event in both
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178 | * directions so the audio devices can stop wasting time trying to
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179 | * talk to us. (There is an additional safeguard in
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180 | * drvAudioVrdeHA_StreamGetStatus.)
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181 | */
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182 | if (mpDrv->cClients == 0)
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183 | {
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184 | VMSTATE enmState = PDMDrvHlpVMState(mpDrv->pDrvIns);
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185 | if (enmState <= VMSTATE_POWERING_OFF)
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186 | {
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187 | PDMIHOSTAUDIOPORT *pIHostAudioPort = mpDrv->pIHostAudioPort;
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188 | AssertPtr(pIHostAudioPort);
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189 | pIHostAudioPort->pfnNotifyDeviceChanged(pIHostAudioPort, PDMAUDIODIR_OUT, NULL /*pvUser*/);
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190 | pIHostAudioPort->pfnNotifyDeviceChanged(pIHostAudioPort, PDMAUDIODIR_IN, NULL /*pvUser*/);
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191 | }
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192 | }
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193 | #endif
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194 | }
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195 | RTCritSectLeave(&mCritSect);
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196 | }
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197 |
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198 |
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199 | int AudioVRDE::onVRDEControl(bool fEnable, uint32_t uFlags)
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200 | {
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201 | RT_NOREF(fEnable, uFlags);
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202 | LogFlowThisFunc(("fEnable=%RTbool, uFlags=0x%x\n", fEnable, uFlags));
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203 |
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204 | if (mpDrv == NULL)
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205 | return VERR_INVALID_STATE;
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206 |
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207 | return VINF_SUCCESS; /* Never veto. */
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208 | }
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209 |
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210 |
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211 | /**
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212 | * Marks the beginning of sending captured audio data from a connected
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213 | * RDP client.
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214 | *
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215 | * @returns VBox status code.
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216 | * @param pvContext The context; in this case a pointer to a
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217 | * VRDESTREAMIN structure.
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218 | * @param pVRDEAudioBegin Pointer to a VRDEAUDIOINBEGIN structure.
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219 | */
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220 | int AudioVRDE::onVRDEInputBegin(void *pvContext, PVRDEAUDIOINBEGIN pVRDEAudioBegin)
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221 | {
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222 | AssertPtrReturn(pvContext, VERR_INVALID_POINTER);
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223 | AssertPtrReturn(pVRDEAudioBegin, VERR_INVALID_POINTER);
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224 | PVRDESTREAM pVRDEStrmIn = (PVRDESTREAM)pvContext;
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225 | AssertPtrReturn(pVRDEStrmIn, VERR_INVALID_POINTER);
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226 |
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227 | #ifdef LOG_ENABLED
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228 | VRDEAUDIOFORMAT const audioFmt = pVRDEAudioBegin->fmt;
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229 | LogFlowFunc(("cbSample=%RU32, iSampleHz=%d, cChannels=%d, cBits=%d, fUnsigned=%RTbool\n",
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230 | VRDE_AUDIO_FMT_BYTES_PER_SAMPLE(audioFmt), VRDE_AUDIO_FMT_SAMPLE_FREQ(audioFmt),
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231 | VRDE_AUDIO_FMT_CHANNELS(audioFmt), VRDE_AUDIO_FMT_BITS_PER_SAMPLE(audioFmt), VRDE_AUDIO_FMT_SIGNED(audioFmt)));
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232 | #endif
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233 |
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234 | return VINF_SUCCESS;
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235 | }
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236 |
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237 |
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238 | int AudioVRDE::onVRDEInputData(void *pvContext, const void *pvData, uint32_t cbData)
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239 | {
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240 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pvContext;
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241 | AssertPtrReturn(pStreamVRDE, VERR_INVALID_POINTER);
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242 | LogFlowFunc(("cbData=%#x\n", cbData));
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243 |
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244 | void *pvBuf = NULL;
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245 | size_t cbBuf = 0;
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246 | RTCircBufAcquireWriteBlock(pStreamVRDE->In.pCircBuf, cbData, &pvBuf, &cbBuf);
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247 |
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248 | if (cbBuf)
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249 | memcpy(pvBuf, pvData, cbBuf);
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250 |
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251 | RTCircBufReleaseWriteBlock(pStreamVRDE->In.pCircBuf, cbBuf);
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252 |
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253 | if (cbBuf < cbData)
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254 | LogRelMax(999, ("VRDE: Capturing audio data lost %zu bytes\n", cbData - cbBuf)); /** @todo Use an error counter. */
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255 |
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256 | return VINF_SUCCESS; /** @todo r=andy How to tell the caller if we were not able to handle *all* input data? */
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257 | }
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258 |
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259 |
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260 | int AudioVRDE::onVRDEInputEnd(void *pvContext)
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261 | {
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262 | RT_NOREF(pvContext);
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263 | return VINF_SUCCESS;
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264 | }
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265 |
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266 |
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267 | int AudioVRDE::onVRDEInputIntercept(bool fEnabled)
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268 | {
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269 | RT_NOREF(fEnabled);
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270 | return VINF_SUCCESS; /* Never veto. */
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271 | }
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272 |
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273 |
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274 |
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275 | /*********************************************************************************************************************************
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276 | * PDMIHOSTAUDIO *
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277 | *********************************************************************************************************************************/
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278 |
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279 | /**
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280 | * @interface_method_impl{PDMIHOSTAUDIO,pfnGetConfig}
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281 | */
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282 | static DECLCALLBACK(int) drvAudioVrdeHA_GetConfig(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDCFG pBackendCfg)
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283 | {
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284 | RT_NOREF(pInterface);
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285 | AssertPtrReturn(pBackendCfg, VERR_INVALID_POINTER);
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286 |
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287 | RTStrCopy(pBackendCfg->szName, sizeof(pBackendCfg->szName), "VRDE");
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288 | pBackendCfg->cbStream = sizeof(VRDESTREAM);
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289 | pBackendCfg->fFlags = 0;
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290 | pBackendCfg->cMaxStreamsIn = UINT32_MAX;
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291 | pBackendCfg->cMaxStreamsOut = UINT32_MAX;
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292 |
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293 | return VINF_SUCCESS;
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294 | }
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295 |
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296 |
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297 | /**
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298 | * @interface_method_impl{PDMIHOSTAUDIO,pfnGetStatus}
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299 | */
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300 | static DECLCALLBACK(PDMAUDIOBACKENDSTS) drvAudioVrdeHA_GetStatus(PPDMIHOSTAUDIO pInterface, PDMAUDIODIR enmDir)
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301 | {
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302 | RT_NOREF(pInterface, enmDir);
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303 | return PDMAUDIOBACKENDSTS_RUNNING;
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304 | }
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305 |
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306 |
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307 | /**
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308 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCreate}
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309 | */
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310 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamCreate(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
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311 | PCPDMAUDIOSTREAMCFG pCfgReq, PPDMAUDIOSTREAMCFG pCfgAcq)
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312 | {
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313 | PDRVAUDIOVRDE pThis = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
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314 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
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315 | AssertPtrReturn(pStreamVRDE, VERR_INVALID_POINTER);
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316 | AssertPtrReturn(pCfgReq, VERR_INVALID_POINTER);
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317 | AssertPtrReturn(pCfgAcq, VERR_INVALID_POINTER);
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318 |
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319 | /*
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320 | * Only create a stream if we have clients.
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321 | */
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322 | int vrc;
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323 | NOREF(pThis);
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324 | #if 0 /* later maybe */
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325 | if (pThis->cClients == 0)
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326 | {
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327 | LogFunc(("No clients, failing with VERR_AUDIO_STREAM_COULD_NOT_CREATE.\n"));
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328 | vrc = VERR_AUDIO_STREAM_COULD_NOT_CREATE;
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329 | }
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330 | else
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331 | #endif
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332 | {
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333 | /*
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334 | * The VRDP server does its own mixing and resampling because it may be
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335 | * sending the audio to any number of different clients all with different
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336 | * formats (including clients which hasn't yet connected). So, it desires
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337 | * the raw data from the mixer (somewhat akind to stereo signed 64-bit,
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338 | * see st_sample_t and PDMAUDIOFRAME).
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339 | */
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340 | PDMAudioPropsInitEx(&pCfgAcq->Props, 8 /*64-bit*/, true /*fSigned*/, 2 /*stereo*/,
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341 | 22050 /*Hz - VRDP_AUDIO_CHUNK_INTERNAL_FREQ_HZ*/,
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342 | true /*fLittleEndian*/, true /*fRaw*/);
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343 |
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344 | /* According to the VRDP docs (VRDP_AUDIO_CHUNK_TIME_MS), the VRDP server
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345 | stores audio in 200ms chunks. */
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346 | const uint32_t cFramesVrdpServer = PDMAudioPropsMilliToFrames(&pCfgAcq->Props, 200 /*ms*/);
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347 |
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348 | if (pCfgReq->enmDir == PDMAUDIODIR_IN)
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349 | {
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350 | pCfgAcq->Backend.cFramesBufferSize = cFramesVrdpServer;
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351 | pCfgAcq->Backend.cFramesPeriod = cFramesVrdpServer / 4; /* This is utter non-sense, but whatever. */
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352 | pCfgAcq->Backend.cFramesPreBuffering = pCfgReq->Backend.cFramesPreBuffering * cFramesVrdpServer
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353 | / RT_MAX(pCfgReq->Backend.cFramesBufferSize, 1);
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354 |
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355 | vrc = RTCircBufCreate(&pStreamVRDE->In.pCircBuf, PDMAudioPropsFramesToBytes(&pCfgAcq->Props, cFramesVrdpServer));
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356 | }
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357 | else
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358 | {
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359 | /** @todo r=bird: So, if VRDP does 200ms chunks, why do we report 100ms
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360 | * buffer and 20ms period? How does these parameters at all correlate
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361 | * with the above comment?!? */
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362 | pCfgAcq->Backend.cFramesPeriod = PDMAudioPropsMilliToFrames(&pCfgAcq->Props, 20 /*ms*/);
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363 | pCfgAcq->Backend.cFramesBufferSize = PDMAudioPropsMilliToFrames(&pCfgAcq->Props, 100 /*ms*/);
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364 | pCfgAcq->Backend.cFramesPreBuffering = pCfgAcq->Backend.cFramesPeriod * 2;
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365 | vrc = VINF_SUCCESS;
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366 | }
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367 |
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368 | PDMAudioStrmCfgCopy(&pStreamVRDE->Cfg, pCfgAcq);
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369 | }
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370 | return vrc;
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371 | }
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372 |
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373 |
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374 | /**
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375 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamDestroy}
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376 | */
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377 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamDestroy(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
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378 | bool fImmediate)
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379 | {
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380 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
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381 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
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382 | AssertPtrReturn(pStreamVRDE, VERR_INVALID_POINTER);
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383 | RT_NOREF(fImmediate);
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384 |
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385 | if (pStreamVRDE->Cfg.enmDir == PDMAUDIODIR_IN)
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386 | {
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387 | LogFlowFunc(("Calling SendAudioInputEnd\n"));
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388 | if (pDrv->pConsoleVRDPServer)
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389 | pDrv->pConsoleVRDPServer->SendAudioInputEnd(NULL);
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390 |
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391 | if (pStreamVRDE->In.pCircBuf)
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392 | {
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393 | RTCircBufDestroy(pStreamVRDE->In.pCircBuf);
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394 | pStreamVRDE->In.pCircBuf = NULL;
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395 | }
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396 | }
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397 |
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398 | return VINF_SUCCESS;
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399 | }
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400 |
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401 |
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402 | /**
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403 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamEnable}
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404 | */
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405 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamEnable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
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406 | {
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407 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
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408 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
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409 |
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410 | int vrc;
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411 | if (!pDrv->pConsoleVRDPServer)
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412 | {
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413 | LogRelMax(32, ("Audio: VRDP console not ready (enable)\n"));
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414 | vrc = VERR_AUDIO_STREAM_NOT_READY;
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415 | }
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416 | else if (pStreamVRDE->Cfg.enmDir == PDMAUDIODIR_IN)
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417 | {
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418 | vrc = pDrv->pConsoleVRDPServer->SendAudioInputBegin(NULL, pStreamVRDE,
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419 | PDMAudioPropsMilliToFrames(&pStreamVRDE->Cfg.Props, 200 /*ms*/),
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420 | PDMAudioPropsHz(&pStreamVRDE->Cfg.Props),
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421 | PDMAudioPropsChannels(&pStreamVRDE->Cfg.Props),
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422 | PDMAudioPropsSampleBits(&pStreamVRDE->Cfg.Props));
|
---|
423 | LogFlowFunc(("SendAudioInputBegin returns %Rrc\n", vrc));
|
---|
424 | if (vrc == VERR_NOT_SUPPORTED)
|
---|
425 | {
|
---|
426 | LogRelMax(64, ("Audio: No VRDE client connected, so no input recording available\n"));
|
---|
427 | vrc = VERR_AUDIO_STREAM_NOT_READY;
|
---|
428 | }
|
---|
429 | }
|
---|
430 | else
|
---|
431 | vrc = VINF_SUCCESS;
|
---|
432 | LogFlowFunc(("returns %Rrc\n", vrc));
|
---|
433 | return vrc;
|
---|
434 | }
|
---|
435 |
|
---|
436 |
|
---|
437 | /**
|
---|
438 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamDisable}
|
---|
439 | */
|
---|
440 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamDisable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
|
---|
441 | {
|
---|
442 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
|
---|
443 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
|
---|
444 |
|
---|
445 | int vrc;
|
---|
446 | if (!pDrv->pConsoleVRDPServer)
|
---|
447 | {
|
---|
448 | LogRelMax(32, ("Audio: VRDP console not ready (disable)\n"));
|
---|
449 | vrc = VERR_AUDIO_STREAM_NOT_READY;
|
---|
450 | }
|
---|
451 | else if (pStreamVRDE->Cfg.enmDir == PDMAUDIODIR_IN)
|
---|
452 | {
|
---|
453 | LogFlowFunc(("Calling SendAudioInputEnd\n"));
|
---|
454 | pDrv->pConsoleVRDPServer->SendAudioInputEnd(NULL /* pvUserCtx */);
|
---|
455 | vrc = VINF_SUCCESS;
|
---|
456 | }
|
---|
457 | else
|
---|
458 | vrc = VINF_SUCCESS;
|
---|
459 | LogFlowFunc(("returns %Rrc\n", vrc));
|
---|
460 | return vrc;
|
---|
461 | }
|
---|
462 |
|
---|
463 |
|
---|
464 | /**
|
---|
465 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamPause}
|
---|
466 | */
|
---|
467 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamPause(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
|
---|
468 | {
|
---|
469 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
|
---|
470 | RT_NOREF(pStream);
|
---|
471 |
|
---|
472 | if (!pDrv->pConsoleVRDPServer)
|
---|
473 | {
|
---|
474 | LogRelMax(32, ("Audio: VRDP console not ready (pause)\n"));
|
---|
475 | return VERR_AUDIO_STREAM_NOT_READY;
|
---|
476 | }
|
---|
477 | LogFlowFunc(("returns VINF_SUCCESS\n"));
|
---|
478 | return VINF_SUCCESS;
|
---|
479 | }
|
---|
480 |
|
---|
481 |
|
---|
482 | /**
|
---|
483 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamResume}
|
---|
484 | */
|
---|
485 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamResume(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
|
---|
486 | {
|
---|
487 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
|
---|
488 | RT_NOREF(pStream);
|
---|
489 |
|
---|
490 | if (!pDrv->pConsoleVRDPServer)
|
---|
491 | {
|
---|
492 | LogRelMax(32, ("Audio: VRDP console not ready (resume)\n"));
|
---|
493 | return VERR_AUDIO_STREAM_NOT_READY;
|
---|
494 | }
|
---|
495 | LogFlowFunc(("returns VINF_SUCCESS\n"));
|
---|
496 | return VINF_SUCCESS;
|
---|
497 | }
|
---|
498 |
|
---|
499 |
|
---|
500 | /**
|
---|
501 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamDrain}
|
---|
502 | */
|
---|
503 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamDrain(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
|
---|
504 | {
|
---|
505 | RT_NOREF(pInterface, pStream);
|
---|
506 | LogFlowFunc(("returns VINF_SUCCESS\n"));
|
---|
507 | return VINF_SUCCESS;
|
---|
508 | }
|
---|
509 |
|
---|
510 |
|
---|
511 | /**
|
---|
512 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetState}
|
---|
513 | */
|
---|
514 | static DECLCALLBACK(PDMHOSTAUDIOSTREAMSTATE) drvAudioVrdeHA_StreamGetState(PPDMIHOSTAUDIO pInterface,
|
---|
515 | PPDMAUDIOBACKENDSTREAM pStream)
|
---|
516 | {
|
---|
517 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
|
---|
518 | AssertPtrReturn(pStream, PDMHOSTAUDIOSTREAMSTATE_INVALID);
|
---|
519 |
|
---|
520 | return pDrv->cClients > 0 ? PDMHOSTAUDIOSTREAMSTATE_OKAY : PDMHOSTAUDIOSTREAMSTATE_INACTIVE;
|
---|
521 | }
|
---|
522 |
|
---|
523 |
|
---|
524 | /**
|
---|
525 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetWritable}
|
---|
526 | */
|
---|
527 | static DECLCALLBACK(uint32_t) drvAudioVrdeHA_StreamGetWritable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
|
---|
528 | {
|
---|
529 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
|
---|
530 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
|
---|
531 |
|
---|
532 | /** @todo Find some sane value here. We probably need a VRDE API VRDE to specify this. */
|
---|
533 | if (pDrv->cClients)
|
---|
534 | return PDMAudioPropsFramesToBytes(&pStreamVRDE->Cfg.Props, pStreamVRDE->Cfg.Backend.cFramesBufferSize);
|
---|
535 | return 0;
|
---|
536 | }
|
---|
537 |
|
---|
538 |
|
---|
539 | /**
|
---|
540 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamPlay}
|
---|
541 | */
|
---|
542 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamPlay(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
|
---|
543 | const void *pvBuf, uint32_t cbBuf, uint32_t *pcbWritten)
|
---|
544 | {
|
---|
545 | PDRVAUDIOVRDE pDrv = RT_FROM_MEMBER(pInterface, DRVAUDIOVRDE, IHostAudio);
|
---|
546 | AssertPtr(pDrv);
|
---|
547 | AssertPtrReturn(pStream, VERR_INVALID_POINTER);
|
---|
548 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
|
---|
549 | if (cbBuf)
|
---|
550 | AssertPtrReturn(pvBuf, VERR_INVALID_POINTER);
|
---|
551 | AssertPtrReturn(pcbWritten, VERR_INVALID_POINTER);
|
---|
552 |
|
---|
553 | if (!pDrv->pConsoleVRDPServer)
|
---|
554 | return VERR_NOT_AVAILABLE;
|
---|
555 |
|
---|
556 | /* Prepate the format. */
|
---|
557 | PPDMAUDIOPCMPROPS pProps = &pStreamVRDE->Cfg.Props;
|
---|
558 | VRDEAUDIOFORMAT const uVrdpFormat = VRDE_AUDIO_FMT_MAKE(PDMAudioPropsHz(pProps),
|
---|
559 | PDMAudioPropsChannels(pProps),
|
---|
560 | PDMAudioPropsSampleBits(pProps),
|
---|
561 | pProps->fSigned);
|
---|
562 | Assert(uVrdpFormat == VRDE_AUDIO_FMT_MAKE(PDMAudioPropsHz(pProps), 2, 64, true));
|
---|
563 |
|
---|
564 | /** @todo r=bird: there was some incoherent mumbling about "using the
|
---|
565 | * internal counter to track if we (still) can write to the VRDP
|
---|
566 | * server or if need to wait another round (time slot)". However it
|
---|
567 | * wasn't accessing any internal counter nor doing anything else
|
---|
568 | * sensible, so I've removed it. */
|
---|
569 |
|
---|
570 | uint32_t cFrames = PDMAudioPropsBytesToFrames(&pStream->pStream->Cfg.Props, cbBuf);
|
---|
571 | Assert(cFrames == cbBuf / (sizeof(uint64_t) * 2));
|
---|
572 | pDrv->pConsoleVRDPServer->SendAudioSamples(pvBuf, cFrames, uVrdpFormat);
|
---|
573 |
|
---|
574 | Log3Func(("cFramesWritten=%RU32\n", cFrames));
|
---|
575 | *pcbWritten = PDMAudioPropsFramesToBytes(&pStream->pStream->Cfg.Props, cFrames);
|
---|
576 | Assert(*pcbWritten == cbBuf);
|
---|
577 | return VINF_SUCCESS;
|
---|
578 | }
|
---|
579 |
|
---|
580 |
|
---|
581 | /**
|
---|
582 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamGetReadable}
|
---|
583 | */
|
---|
584 | static DECLCALLBACK(uint32_t) drvAudioVrdeHA_StreamGetReadable(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream)
|
---|
585 | {
|
---|
586 | RT_NOREF(pInterface);
|
---|
587 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
|
---|
588 |
|
---|
589 | AssertReturn(pStreamVRDE->Cfg.enmDir == PDMAUDIODIR_IN, 0);
|
---|
590 | uint32_t cbRet = (uint32_t)RTCircBufUsed(pStreamVRDE->In.pCircBuf);
|
---|
591 | Log4Func(("returns %#x\n", cbRet));
|
---|
592 | return cbRet;
|
---|
593 | }
|
---|
594 |
|
---|
595 |
|
---|
596 | /**
|
---|
597 | * @interface_method_impl{PDMIHOSTAUDIO,pfnStreamCapture}
|
---|
598 | */
|
---|
599 | static DECLCALLBACK(int) drvAudioVrdeHA_StreamCapture(PPDMIHOSTAUDIO pInterface, PPDMAUDIOBACKENDSTREAM pStream,
|
---|
600 | void *pvBuf, uint32_t cbBuf, uint32_t *pcbRead)
|
---|
601 | {
|
---|
602 | RT_NOREF(pInterface);
|
---|
603 | PVRDESTREAM pStreamVRDE = (PVRDESTREAM)pStream;
|
---|
604 | AssertPtrReturn(pStreamVRDE, VERR_INVALID_POINTER);
|
---|
605 | AssertPtrReturn(pvBuf, VERR_INVALID_POINTER);
|
---|
606 | AssertReturn(cbBuf, VERR_INVALID_PARAMETER);
|
---|
607 | AssertPtrReturn(pcbRead, VERR_INVALID_PARAMETER);
|
---|
608 |
|
---|
609 | *pcbRead = 0;
|
---|
610 | while (cbBuf > 0 && RTCircBufUsed(pStreamVRDE->In.pCircBuf) > 0)
|
---|
611 | {
|
---|
612 | size_t cbData = 0;
|
---|
613 | void *pvData = NULL;
|
---|
614 | RTCircBufAcquireReadBlock(pStreamVRDE->In.pCircBuf, cbBuf, &pvData, &cbData);
|
---|
615 |
|
---|
616 | memcpy(pvBuf, pvData, cbData);
|
---|
617 |
|
---|
618 | RTCircBufReleaseReadBlock(pStreamVRDE->In.pCircBuf, cbData);
|
---|
619 |
|
---|
620 | *pcbRead += (uint32_t)cbData;
|
---|
621 | cbBuf -= (uint32_t)cbData;
|
---|
622 | pvData = (uint8_t *)pvData + cbData;
|
---|
623 | }
|
---|
624 |
|
---|
625 | LogFlowFunc(("returns %#x bytes\n", *pcbRead));
|
---|
626 | return VINF_SUCCESS;
|
---|
627 | }
|
---|
628 |
|
---|
629 |
|
---|
630 | /*********************************************************************************************************************************
|
---|
631 | * PDMIBASE *
|
---|
632 | *********************************************************************************************************************************/
|
---|
633 |
|
---|
634 | /**
|
---|
635 | * @interface_method_impl{PDMIBASE,pfnQueryInterface}
|
---|
636 | */
|
---|
637 | static DECLCALLBACK(void *) drvAudioVrdeQueryInterface(PPDMIBASE pInterface, const char *pszIID)
|
---|
638 | {
|
---|
639 | PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
|
---|
640 | PDRVAUDIOVRDE pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIOVRDE);
|
---|
641 |
|
---|
642 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
|
---|
643 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHOSTAUDIO, &pThis->IHostAudio);
|
---|
644 | return NULL;
|
---|
645 | }
|
---|
646 |
|
---|
647 |
|
---|
648 | /*********************************************************************************************************************************
|
---|
649 | * PDMDRVREG *
|
---|
650 | *********************************************************************************************************************************/
|
---|
651 |
|
---|
652 | /**
|
---|
653 | * @interface_method_impl{PDMDRVREG,pfnPowerOff}
|
---|
654 | */
|
---|
655 | /*static*/ DECLCALLBACK(void) AudioVRDE::drvPowerOff(PPDMDRVINS pDrvIns)
|
---|
656 | {
|
---|
657 | PDRVAUDIOVRDE pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIOVRDE);
|
---|
658 | LogFlowFuncEnter();
|
---|
659 |
|
---|
660 | if (pThis->pConsoleVRDPServer)
|
---|
661 | pThis->pConsoleVRDPServer->SendAudioInputEnd(NULL);
|
---|
662 | }
|
---|
663 |
|
---|
664 |
|
---|
665 | /**
|
---|
666 | * @interface_method_impl{PDMDRVREG,pfnDestruct}
|
---|
667 | */
|
---|
668 | /*static*/ DECLCALLBACK(void) AudioVRDE::drvDestruct(PPDMDRVINS pDrvIns)
|
---|
669 | {
|
---|
670 | PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
|
---|
671 | PDRVAUDIOVRDE pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIOVRDE);
|
---|
672 | LogFlowFuncEnter();
|
---|
673 |
|
---|
674 | /** @todo For runtime detach maybe:
|
---|
675 | if (pThis->pConsoleVRDPServer)
|
---|
676 | pThis->pConsoleVRDPServer->SendAudioInputEnd(NULL); */
|
---|
677 |
|
---|
678 | /*
|
---|
679 | * If the AudioVRDE object is still alive, we must clear it's reference to
|
---|
680 | * us since we'll be invalid when we return from this method.
|
---|
681 | */
|
---|
682 | AudioVRDE *pAudioVRDE = pThis->pAudioVRDE;
|
---|
683 | if (pAudioVRDE)
|
---|
684 | {
|
---|
685 | RTCritSectEnter(&pAudioVRDE->mCritSect);
|
---|
686 | pAudioVRDE->mpDrv = NULL;
|
---|
687 | pThis->pAudioVRDE = NULL;
|
---|
688 | RTCritSectLeave(&pAudioVRDE->mCritSect);
|
---|
689 | }
|
---|
690 | }
|
---|
691 |
|
---|
692 |
|
---|
693 | /**
|
---|
694 | * Construct a VRDE audio driver instance.
|
---|
695 | *
|
---|
696 | * @copydoc FNPDMDRVCONSTRUCT
|
---|
697 | */
|
---|
698 | /* static */
|
---|
699 | DECLCALLBACK(int) AudioVRDE::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
|
---|
700 | {
|
---|
701 | PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
|
---|
702 | PDRVAUDIOVRDE pThis = PDMINS_2_DATA(pDrvIns, PDRVAUDIOVRDE);
|
---|
703 | RT_NOREF(fFlags);
|
---|
704 |
|
---|
705 | AssertPtrReturn(pDrvIns, VERR_INVALID_POINTER);
|
---|
706 | AssertPtrReturn(pCfg, VERR_INVALID_POINTER);
|
---|
707 |
|
---|
708 | LogRel(("Audio: Initializing VRDE driver\n"));
|
---|
709 | LogFlowFunc(("fFlags=0x%x\n", fFlags));
|
---|
710 |
|
---|
711 | AssertMsgReturn(PDMDrvHlpNoAttach(pDrvIns) == VERR_PDM_NO_ATTACHED_DRIVER,
|
---|
712 | ("Configuration error: Not possible to attach anything to this driver!\n"),
|
---|
713 | VERR_PDM_DRVINS_NO_ATTACH);
|
---|
714 |
|
---|
715 | /*
|
---|
716 | * Init the static parts.
|
---|
717 | */
|
---|
718 | pThis->pDrvIns = pDrvIns;
|
---|
719 | pThis->cClients = 0;
|
---|
720 | /* IBase */
|
---|
721 | pDrvIns->IBase.pfnQueryInterface = drvAudioVrdeQueryInterface;
|
---|
722 | /* IHostAudio */
|
---|
723 | pThis->IHostAudio.pfnGetConfig = drvAudioVrdeHA_GetConfig;
|
---|
724 | pThis->IHostAudio.pfnGetDevices = NULL;
|
---|
725 | pThis->IHostAudio.pfnSetDevice = NULL;
|
---|
726 | pThis->IHostAudio.pfnGetStatus = drvAudioVrdeHA_GetStatus;
|
---|
727 | pThis->IHostAudio.pfnDoOnWorkerThread = NULL;
|
---|
728 | pThis->IHostAudio.pfnStreamConfigHint = NULL;
|
---|
729 | pThis->IHostAudio.pfnStreamCreate = drvAudioVrdeHA_StreamCreate;
|
---|
730 | pThis->IHostAudio.pfnStreamInitAsync = NULL;
|
---|
731 | pThis->IHostAudio.pfnStreamDestroy = drvAudioVrdeHA_StreamDestroy;
|
---|
732 | pThis->IHostAudio.pfnStreamNotifyDeviceChanged = NULL;
|
---|
733 | pThis->IHostAudio.pfnStreamEnable = drvAudioVrdeHA_StreamEnable;
|
---|
734 | pThis->IHostAudio.pfnStreamDisable = drvAudioVrdeHA_StreamDisable;
|
---|
735 | pThis->IHostAudio.pfnStreamPause = drvAudioVrdeHA_StreamPause;
|
---|
736 | pThis->IHostAudio.pfnStreamResume = drvAudioVrdeHA_StreamResume;
|
---|
737 | pThis->IHostAudio.pfnStreamDrain = drvAudioVrdeHA_StreamDrain;
|
---|
738 | pThis->IHostAudio.pfnStreamGetState = drvAudioVrdeHA_StreamGetState;
|
---|
739 | pThis->IHostAudio.pfnStreamGetPending = NULL;
|
---|
740 | pThis->IHostAudio.pfnStreamGetWritable = drvAudioVrdeHA_StreamGetWritable;
|
---|
741 | pThis->IHostAudio.pfnStreamPlay = drvAudioVrdeHA_StreamPlay;
|
---|
742 | pThis->IHostAudio.pfnStreamGetReadable = drvAudioVrdeHA_StreamGetReadable;
|
---|
743 | pThis->IHostAudio.pfnStreamCapture = drvAudioVrdeHA_StreamCapture;
|
---|
744 |
|
---|
745 | /*
|
---|
746 | * Resolve the interface to the driver above us.
|
---|
747 | */
|
---|
748 | pThis->pIHostAudioPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIHOSTAUDIOPORT);
|
---|
749 | AssertPtrReturn(pThis->pIHostAudioPort, VERR_PDM_MISSING_INTERFACE_ABOVE);
|
---|
750 |
|
---|
751 | /* Get the Console object pointer. */
|
---|
752 | com::Guid ConsoleUuid(COM_IIDOF(IConsole));
|
---|
753 | IConsole *pIConsole = (IConsole *)PDMDrvHlpQueryGenericUserObject(pDrvIns, ConsoleUuid.raw());
|
---|
754 | AssertLogRelReturn(pIConsole, VERR_INTERNAL_ERROR_3);
|
---|
755 | Console *pConsole = static_cast<Console *>(pIConsole);
|
---|
756 | AssertLogRelReturn(pConsole, VERR_INTERNAL_ERROR_3);
|
---|
757 |
|
---|
758 | /* Get the console VRDP object pointer. */
|
---|
759 | pThis->pConsoleVRDPServer = pConsole->i_consoleVRDPServer();
|
---|
760 | AssertLogRelMsgReturn(RT_VALID_PTR(pThis->pConsoleVRDPServer) || !pThis->pConsoleVRDPServer,
|
---|
761 | ("pConsoleVRDPServer=%p\n", pThis->pConsoleVRDPServer), VERR_INVALID_POINTER);
|
---|
762 |
|
---|
763 | /* Get the AudioVRDE object pointer. */
|
---|
764 | pThis->pAudioVRDE = pConsole->i_getAudioVRDE();
|
---|
765 | AssertLogRelMsgReturn(RT_VALID_PTR(pThis->pAudioVRDE), ("pAudioVRDE=%p\n", pThis->pAudioVRDE), VERR_INVALID_POINTER);
|
---|
766 | RTCritSectEnter(&pThis->pAudioVRDE->mCritSect);
|
---|
767 | pThis->pAudioVRDE->mpDrv = pThis;
|
---|
768 | RTCritSectLeave(&pThis->pAudioVRDE->mCritSect);
|
---|
769 |
|
---|
770 | return VINF_SUCCESS;
|
---|
771 | }
|
---|
772 |
|
---|
773 |
|
---|
774 | /**
|
---|
775 | * VRDE audio driver registration record.
|
---|
776 | */
|
---|
777 | const PDMDRVREG AudioVRDE::DrvReg =
|
---|
778 | {
|
---|
779 | PDM_DRVREG_VERSION,
|
---|
780 | /* szName */
|
---|
781 | "AudioVRDE",
|
---|
782 | /* szRCMod */
|
---|
783 | "",
|
---|
784 | /* szR0Mod */
|
---|
785 | "",
|
---|
786 | /* pszDescription */
|
---|
787 | "Audio driver for VRDE backend",
|
---|
788 | /* fFlags */
|
---|
789 | PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
|
---|
790 | /* fClass. */
|
---|
791 | PDM_DRVREG_CLASS_AUDIO,
|
---|
792 | /* cMaxInstances */
|
---|
793 | ~0U,
|
---|
794 | /* cbInstance */
|
---|
795 | sizeof(DRVAUDIOVRDE),
|
---|
796 | /* pfnConstruct */
|
---|
797 | AudioVRDE::drvConstruct,
|
---|
798 | /* pfnDestruct */
|
---|
799 | AudioVRDE::drvDestruct,
|
---|
800 | /* pfnRelocate */
|
---|
801 | NULL,
|
---|
802 | /* pfnIOCtl */
|
---|
803 | NULL,
|
---|
804 | /* pfnPowerOn */
|
---|
805 | NULL,
|
---|
806 | /* pfnReset */
|
---|
807 | NULL,
|
---|
808 | /* pfnSuspend */
|
---|
809 | NULL,
|
---|
810 | /* pfnResume */
|
---|
811 | NULL,
|
---|
812 | /* pfnAttach */
|
---|
813 | NULL,
|
---|
814 | /* pfnDetach */
|
---|
815 | NULL,
|
---|
816 | /* pfnPowerOff */
|
---|
817 | AudioVRDE::drvPowerOff,
|
---|
818 | /* pfnSoftReset */
|
---|
819 | NULL,
|
---|
820 | /* u32EndVersion */
|
---|
821 | PDM_DRVREG_VERSION
|
---|
822 | };
|
---|
823 |
|
---|