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FreeRDP/channels/rdpsnd/client/rdpsnd_main.c

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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Audio Output Virtual Channel
*
* Copyright 2009-2011 Jay Sorg
* Copyright 2010-2011 Vic Lee
* Copyright 2012-2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef _WIN32
#include <sys/time.h>
#include <signal.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/wlog.h>
#include <winpr/synch.h>
#include <winpr/print.h>
#include <winpr/thread.h>
#include <winpr/stream.h>
#include <winpr/cmdline.h>
#include <winpr/sysinfo.h>
#include <winpr/collections.h>
#include <freerdp/types.h>
#include <freerdp/addin.h>
#include <freerdp/constants.h>
#include <freerdp/utils/debug.h>
#include <freerdp/utils/signal.h>
#include "rdpsnd_main.h"
#define TIME_DELAY_MS 65
struct rdpsnd_plugin
{
CHANNEL_DEF channelDef;
CHANNEL_ENTRY_POINTS_FREERDP channelEntryPoints;
HANDLE thread;
wStream* data_in;
void* InitHandle;
DWORD OpenHandle;
wMessagePipe* MsgPipe;
wLog* log;
HANDLE ScheduleThread;
BYTE cBlockNo;
UINT16 wQualityMode;
int wCurrentFormatNo;
AUDIO_FORMAT* ServerFormats;
UINT16 NumberOfServerFormats;
AUDIO_FORMAT* ClientFormats;
UINT16 NumberOfClientFormats;
BOOL expectingWave;
BYTE waveData[4];
UINT16 waveDataSize;
UINT32 wTimeStamp;
int latency;
BOOL isOpen;
UINT16 fixedFormat;
UINT16 fixedChannel;
UINT32 fixedRate;
char* subsystem;
char* device_name;
/* Device plugin */
rdpsndDevicePlugin* device;
};
static void rdpsnd_confirm_wave(rdpsndPlugin* rdpsnd, RDPSND_WAVE* wave);
static void* rdpsnd_schedule_thread(void* arg)
{
wMessage message;
UINT16 wTimeDiff;
UINT16 wTimeStamp;
UINT16 wCurrentTime;
RDPSND_WAVE* wave;
rdpsndPlugin* rdpsnd = (rdpsndPlugin*) arg;
while (1)
{
if (!MessageQueue_Wait(rdpsnd->MsgPipe->Out))
break;
if (!MessageQueue_Peek(rdpsnd->MsgPipe->Out, &message, TRUE))
break;
if (message.id == WMQ_QUIT)
break;
wave = (RDPSND_WAVE*) message.wParam;
wCurrentTime = (UINT16) GetTickCount();
wTimeStamp = wave->wLocalTimeB;
if (wCurrentTime <= wTimeStamp)
{
wTimeDiff = wTimeStamp - wCurrentTime;
Sleep(wTimeDiff);
}
rdpsnd_confirm_wave(rdpsnd, wave);
message.wParam = NULL;
free(wave);
}
return NULL;
}
void rdpsnd_send_quality_mode_pdu(rdpsndPlugin* rdpsnd)
{
wStream* pdu;
pdu = Stream_New(NULL, 8);
Stream_Write_UINT8(pdu, SNDC_QUALITYMODE); /* msgType */
Stream_Write_UINT8(pdu, 0); /* bPad */
Stream_Write_UINT16(pdu, 4); /* BodySize */
Stream_Write_UINT16(pdu, rdpsnd->wQualityMode); /* wQualityMode */
Stream_Write_UINT16(pdu, 0); /* Reserved */
WLog_Print(rdpsnd->log, WLOG_DEBUG, "QualityMode: %d", rdpsnd->wQualityMode);
rdpsnd_virtual_channel_write(rdpsnd, pdu);
}
void rdpsnd_select_supported_audio_formats(rdpsndPlugin* rdpsnd)
{
int index;
AUDIO_FORMAT* serverFormat;
AUDIO_FORMAT* clientFormat;
rdpsnd_free_audio_formats(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
rdpsnd->NumberOfClientFormats = 0;
rdpsnd->ClientFormats = NULL;
if (!rdpsnd->NumberOfServerFormats)
return;
rdpsnd->ClientFormats = (AUDIO_FORMAT*) malloc(sizeof(AUDIO_FORMAT) * rdpsnd->NumberOfServerFormats);
for (index = 0; index < (int) rdpsnd->NumberOfServerFormats; index++)
{
serverFormat = &rdpsnd->ServerFormats[index];
if (rdpsnd->fixedFormat > 0 && (rdpsnd->fixedFormat != serverFormat->wFormatTag))
continue;
if (rdpsnd->fixedChannel > 0 && (rdpsnd->fixedChannel != serverFormat->nChannels))
continue;
if (rdpsnd->fixedRate > 0 && (rdpsnd->fixedRate != serverFormat->nSamplesPerSec))
continue;
if (rdpsnd->device && rdpsnd->device->FormatSupported(rdpsnd->device, serverFormat))
{
clientFormat = &rdpsnd->ClientFormats[rdpsnd->NumberOfClientFormats++];
CopyMemory(clientFormat, serverFormat, sizeof(AUDIO_FORMAT));
clientFormat->cbSize = 0;
if (serverFormat->cbSize > 0)
{
clientFormat->data = (BYTE*) malloc(serverFormat->cbSize);
CopyMemory(clientFormat->data, serverFormat->data, serverFormat->cbSize);
clientFormat->cbSize = serverFormat->cbSize;
}
}
}
#if 0
fprintf(stderr, "Server ");
rdpsnd_print_audio_formats(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
fprintf(stderr, "\n");
fprintf(stderr, "Client ");
rdpsnd_print_audio_formats(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
fprintf(stderr, "\n");
#endif
}
void rdpsnd_send_client_audio_formats(rdpsndPlugin* rdpsnd)
{
int index;
wStream* pdu;
UINT16 length;
UINT32 dwVolume;
UINT16 dwVolumeLeft;
UINT16 dwVolumeRight;
UINT16 wNumberOfFormats;
AUDIO_FORMAT* clientFormat;
dwVolumeLeft = ((50 * 0xFFFF) / 100); /* 50% */
dwVolumeRight = ((50 * 0xFFFF) / 100); /* 50% */
dwVolume = (dwVolumeLeft << 16) | dwVolumeRight;
if (rdpsnd->device)
{
if (rdpsnd->device->GetVolume)
dwVolume = rdpsnd->device->GetVolume(rdpsnd->device);
}
wNumberOfFormats = rdpsnd->NumberOfClientFormats;
length = 4 + 20;
for (index = 0; index < (int) wNumberOfFormats; index++)
length += (18 + rdpsnd->ClientFormats[index].cbSize);
pdu = Stream_New(NULL, length);
Stream_Write_UINT8(pdu, SNDC_FORMATS); /* msgType */
Stream_Write_UINT8(pdu, 0); /* bPad */
Stream_Write_UINT16(pdu, length - 4); /* BodySize */
Stream_Write_UINT32(pdu, TSSNDCAPS_ALIVE | TSSNDCAPS_VOLUME); /* dwFlags */
Stream_Write_UINT32(pdu, dwVolume); /* dwVolume */
Stream_Write_UINT32(pdu, 0); /* dwPitch */
Stream_Write_UINT16(pdu, 0); /* wDGramPort */
Stream_Write_UINT16(pdu, wNumberOfFormats); /* wNumberOfFormats */
Stream_Write_UINT8(pdu, 0); /* cLastBlockConfirmed */
Stream_Write_UINT16(pdu, 6); /* wVersion */
Stream_Write_UINT8(pdu, 0); /* bPad */
for (index = 0; index < (int) wNumberOfFormats; index++)
{
clientFormat = &rdpsnd->ClientFormats[index];
Stream_Write_UINT16(pdu, clientFormat->wFormatTag);
Stream_Write_UINT16(pdu, clientFormat->nChannels);
Stream_Write_UINT32(pdu, clientFormat->nSamplesPerSec);
Stream_Write_UINT32(pdu, clientFormat->nAvgBytesPerSec);
Stream_Write_UINT16(pdu, clientFormat->nBlockAlign);
Stream_Write_UINT16(pdu, clientFormat->wBitsPerSample);
Stream_Write_UINT16(pdu, clientFormat->cbSize);
if (clientFormat->cbSize > 0)
Stream_Write(pdu, clientFormat->data, clientFormat->cbSize);
}
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Client Audio Formats");
rdpsnd_virtual_channel_write(rdpsnd, pdu);
}
void rdpsnd_recv_server_audio_formats_pdu(rdpsndPlugin* rdpsnd, wStream* s)
{
int index;
UINT16 wVersion;
AUDIO_FORMAT* format;
UINT16 wNumberOfFormats;
rdpsnd_free_audio_formats(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
rdpsnd->NumberOfServerFormats = 0;
rdpsnd->ServerFormats = NULL;
/* http://msdn.microsoft.com/en-us/library/cc240956.aspx */
Stream_Seek_UINT32(s); /* dwFlags */
Stream_Seek_UINT32(s); /* dwVolume */
Stream_Seek_UINT32(s); /* dwPitch */
Stream_Seek_UINT16(s); /* wDGramPort */
Stream_Read_UINT16(s, wNumberOfFormats);
Stream_Read_UINT8(s, rdpsnd->cBlockNo); /* cLastBlockConfirmed */
Stream_Read_UINT16(s, wVersion); /* wVersion */
Stream_Seek_UINT8(s); /* bPad */
rdpsnd->NumberOfServerFormats = wNumberOfFormats;
rdpsnd->ServerFormats = (AUDIO_FORMAT*) malloc(sizeof(AUDIO_FORMAT) * wNumberOfFormats);
for (index = 0; index < (int) wNumberOfFormats; index++)
{
format = &rdpsnd->ServerFormats[index];
Stream_Read_UINT16(s, format->wFormatTag); /* wFormatTag */
Stream_Read_UINT16(s, format->nChannels); /* nChannels */
Stream_Read_UINT32(s, format->nSamplesPerSec); /* nSamplesPerSec */
Stream_Read_UINT32(s, format->nAvgBytesPerSec); /* nAvgBytesPerSec */
Stream_Read_UINT16(s, format->nBlockAlign); /* nBlockAlign */
Stream_Read_UINT16(s, format->wBitsPerSample); /* wBitsPerSample */
Stream_Read_UINT16(s, format->cbSize); /* cbSize */
if (format->cbSize > 0)
{
format->data = (BYTE*) malloc(format->cbSize);
Stream_Read(s, format->data, format->cbSize);
}
else
{
format->data = NULL;
}
}
rdpsnd_select_supported_audio_formats(rdpsnd);
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Server Audio Formats");
rdpsnd_send_client_audio_formats(rdpsnd);
if (wVersion >= 6)
rdpsnd_send_quality_mode_pdu(rdpsnd);
}
void rdpsnd_send_training_confirm_pdu(rdpsndPlugin* rdpsnd, UINT16 wTimeStamp, UINT16 wPackSize)
{
wStream* pdu;
pdu = Stream_New(NULL, 8);
Stream_Write_UINT8(pdu, SNDC_TRAINING); /* msgType */
Stream_Write_UINT8(pdu, 0); /* bPad */
Stream_Write_UINT16(pdu, 4); /* BodySize */
Stream_Write_UINT16(pdu, wTimeStamp);
Stream_Write_UINT16(pdu, wPackSize);
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Training Response: wTimeStamp: %d wPackSize: %d",
wTimeStamp, wPackSize);
rdpsnd_virtual_channel_write(rdpsnd, pdu);
}
static void rdpsnd_recv_training_pdu(rdpsndPlugin* rdpsnd, wStream* s)
{
UINT16 wTimeStamp;
UINT16 wPackSize;
Stream_Read_UINT16(s, wTimeStamp);
Stream_Read_UINT16(s, wPackSize);
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Training Request: wTimeStamp: %d wPackSize: %d",
wTimeStamp, wPackSize);
rdpsnd_send_training_confirm_pdu(rdpsnd, wTimeStamp, wPackSize);
}
static void rdpsnd_recv_wave_info_pdu(rdpsndPlugin* rdpsnd, wStream* s, UINT16 BodySize)
{
UINT16 wFormatNo;
AUDIO_FORMAT* format;
rdpsnd->expectingWave = TRUE;
Stream_Read_UINT16(s, rdpsnd->wTimeStamp);
Stream_Read_UINT16(s, wFormatNo);
Stream_Read_UINT8(s, rdpsnd->cBlockNo);
Stream_Seek(s, 3); /* bPad */
Stream_Read(s, rdpsnd->waveData, 4);
rdpsnd->waveDataSize = BodySize - 8;
format = &rdpsnd->ClientFormats[wFormatNo];
WLog_Print(rdpsnd->log, WLOG_DEBUG, "WaveInfo: cBlockNo: %d wFormatNo: %d",
rdpsnd->cBlockNo, wFormatNo);
if (!rdpsnd->isOpen)
{
rdpsnd->isOpen = TRUE;
rdpsnd->wCurrentFormatNo = wFormatNo;
//rdpsnd_print_audio_format(format);
if (rdpsnd->device)
{
IFCALL(rdpsnd->device->Open, rdpsnd->device, format, rdpsnd->latency);
}
}
else if (wFormatNo != rdpsnd->wCurrentFormatNo)
{
rdpsnd->wCurrentFormatNo = wFormatNo;
if (rdpsnd->device)
{
IFCALL(rdpsnd->device->SetFormat, rdpsnd->device, format, rdpsnd->latency);
}
}
}
void rdpsnd_send_wave_confirm_pdu(rdpsndPlugin* rdpsnd, UINT16 wTimeStamp, BYTE cConfirmedBlockNo)
{
wStream* pdu;
pdu = Stream_New(NULL, 8);
Stream_Write_UINT8(pdu, SNDC_WAVECONFIRM);
Stream_Write_UINT8(pdu, 0);
Stream_Write_UINT16(pdu, 4);
Stream_Write_UINT16(pdu, wTimeStamp);
Stream_Write_UINT8(pdu, cConfirmedBlockNo); /* cConfirmedBlockNo */
Stream_Write_UINT8(pdu, 0); /* bPad */
rdpsnd_virtual_channel_write(rdpsnd, pdu);
}
void rdpsnd_confirm_wave(rdpsndPlugin* rdpsnd, RDPSND_WAVE* wave)
{
WLog_Print(rdpsnd->log, WLOG_DEBUG, "WaveConfirm: cBlockNo: %d wTimeStamp: %d wTimeDiff: %d",
wave->cBlockNo, wave->wTimeStampB, wave->wTimeStampB - wave->wTimeStampA);
rdpsnd_send_wave_confirm_pdu(rdpsnd, wave->wTimeStampB, wave->cBlockNo);
}
static void rdpsnd_device_send_wave_confirm_pdu(rdpsndDevicePlugin* device, RDPSND_WAVE* wave)
{
if (device->DisableConfirmThread)
rdpsnd_confirm_wave(device->rdpsnd, wave);
else
MessageQueue_Post(device->rdpsnd->MsgPipe->Out, NULL, 0, (void*) wave, NULL);
}
static void rdpsnd_recv_wave_pdu(rdpsndPlugin* rdpsnd, wStream* s)
{
int size;
BYTE* data;
RDPSND_WAVE* wave;
AUDIO_FORMAT* format;
rdpsnd->expectingWave = FALSE;
/**
* The Wave PDU is a special case: it is always sent after a Wave Info PDU,
* and we do not process its header. Instead, the header is pad that needs
* to be filled with the first four bytes of the audio sample data sent as
* part of the preceding Wave Info PDU.
*/
CopyMemory(Stream_Buffer(s), rdpsnd->waveData, 4);
data = Stream_Buffer(s);
size = (int) Stream_Capacity(s);
wave = (RDPSND_WAVE*) malloc(sizeof(RDPSND_WAVE));
wave->wLocalTimeA = GetTickCount();
wave->wTimeStampA = rdpsnd->wTimeStamp;
wave->wFormatNo = rdpsnd->wCurrentFormatNo;
wave->cBlockNo = rdpsnd->cBlockNo;
wave->data = data;
wave->length = size;
wave->AutoConfirm = TRUE;
format = &rdpsnd->ClientFormats[rdpsnd->wCurrentFormatNo];
wave->wAudioLength = rdpsnd_compute_audio_time_length(format, size);
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Wave: cBlockNo: %d wTimeStamp: %d",
wave->cBlockNo, wave->wTimeStampA);
if (!rdpsnd->device)
{
wave->wLocalTimeB = wave->wLocalTimeA;
wave->wTimeStampB = wave->wTimeStampA;
rdpsnd_confirm_wave(rdpsnd, wave);
free(wave);
return;
}
if (rdpsnd->device->WaveDecode)
{
IFCALL(rdpsnd->device->WaveDecode, rdpsnd->device, wave);
}
if (rdpsnd->device->WavePlay)
{
IFCALL(rdpsnd->device->WavePlay, rdpsnd->device, wave);
}
else
{
IFCALL(rdpsnd->device->Play, rdpsnd->device, data, size);
}
if (!rdpsnd->device->WavePlay)
{
wave->wTimeStampB = rdpsnd->wTimeStamp + wave->wAudioLength + TIME_DELAY_MS;
wave->wLocalTimeB = wave->wLocalTimeA + wave->wAudioLength + TIME_DELAY_MS;
}
if (wave->AutoConfirm)
rdpsnd->device->WaveConfirm(rdpsnd->device, wave);
}
static void rdpsnd_recv_close_pdu(rdpsndPlugin* rdpsnd)
{
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Close");
if (rdpsnd->device)
{
IFCALL(rdpsnd->device->Close, rdpsnd->device);
}
rdpsnd->isOpen = FALSE;
}
static void rdpsnd_recv_volume_pdu(rdpsndPlugin* rdpsnd, wStream* s)
{
UINT32 dwVolume;
Stream_Read_UINT32(s, dwVolume);
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Volume: 0x%04X", dwVolume);
if (rdpsnd->device)
{
IFCALL(rdpsnd->device->SetVolume, rdpsnd->device, dwVolume);
}
}
static void rdpsnd_recv_pdu(rdpsndPlugin* rdpsnd, wStream* s)
{
BYTE msgType;
UINT16 BodySize;
if (rdpsnd->expectingWave)
{
rdpsnd_recv_wave_pdu(rdpsnd, s);
Stream_Free(s, TRUE);
return;
}
Stream_Read_UINT8(s, msgType); /* msgType */
Stream_Seek_UINT8(s); /* bPad */
Stream_Read_UINT16(s, BodySize);
//fprintf(stderr, "msgType %d BodySize %d\n", msgType, BodySize);
switch (msgType)
{
case SNDC_FORMATS:
rdpsnd_recv_server_audio_formats_pdu(rdpsnd, s);
break;
case SNDC_TRAINING:
rdpsnd_recv_training_pdu(rdpsnd, s);
break;
case SNDC_WAVE:
rdpsnd_recv_wave_info_pdu(rdpsnd, s, BodySize);
break;
case SNDC_CLOSE:
rdpsnd_recv_close_pdu(rdpsnd);
break;
case SNDC_SETVOLUME:
rdpsnd_recv_volume_pdu(rdpsnd, s);
break;
default:
DEBUG_WARN("unknown msgType %d", msgType);
break;
}
Stream_Free(s, TRUE);
}
static void rdpsnd_register_device_plugin(rdpsndPlugin* rdpsnd, rdpsndDevicePlugin* device)
{
if (rdpsnd->device)
{
DEBUG_WARN("existing device, abort.");
return;
}
rdpsnd->device = device;
device->rdpsnd = rdpsnd;
device->WaveConfirm = rdpsnd_device_send_wave_confirm_pdu;
}
static BOOL rdpsnd_load_device_plugin(rdpsndPlugin* rdpsnd, const char* name, ADDIN_ARGV* args)
{
PFREERDP_RDPSND_DEVICE_ENTRY entry;
FREERDP_RDPSND_DEVICE_ENTRY_POINTS entryPoints;
entry = (PFREERDP_RDPSND_DEVICE_ENTRY) freerdp_load_channel_addin_entry("rdpsnd", (LPSTR) name, NULL, 0);
if (!entry)
return FALSE;
entryPoints.rdpsnd = rdpsnd;
entryPoints.pRegisterRdpsndDevice = rdpsnd_register_device_plugin;
entryPoints.args = args;
if (entry(&entryPoints) != 0)
{
DEBUG_WARN("%s entry returns error.", name);
return FALSE;
}
return TRUE;
}
void rdpsnd_set_subsystem(rdpsndPlugin* rdpsnd, char* subsystem)
{
if (rdpsnd->subsystem)
free(rdpsnd->subsystem);
rdpsnd->subsystem = _strdup(subsystem);
}
void rdpsnd_set_device_name(rdpsndPlugin* rdpsnd, char* device_name)
{
if (rdpsnd->device_name)
free(rdpsnd->device_name);
rdpsnd->device_name = _strdup(device_name);
}
COMMAND_LINE_ARGUMENT_A rdpsnd_args[] =
{
{ "sys", COMMAND_LINE_VALUE_REQUIRED, "<subsystem>", NULL, NULL, -1, NULL, "subsystem" },
{ "dev", COMMAND_LINE_VALUE_REQUIRED, "<device>", NULL, NULL, -1, NULL, "device" },
{ "format", COMMAND_LINE_VALUE_REQUIRED, "<format>", NULL, NULL, -1, NULL, "format" },
{ "rate", COMMAND_LINE_VALUE_REQUIRED, "<rate>", NULL, NULL, -1, NULL, "rate" },
{ "channel", COMMAND_LINE_VALUE_REQUIRED, "<channel>", NULL, NULL, -1, NULL, "channel" },
{ "latency", COMMAND_LINE_VALUE_REQUIRED, "<latency>", NULL, NULL, -1, NULL, "latency" },
{ "quality", COMMAND_LINE_VALUE_REQUIRED, "<quality mode>", NULL, NULL, -1, NULL, "quality mode" },
{ NULL, 0, NULL, NULL, NULL, -1, NULL, NULL }
};
static void rdpsnd_process_addin_args(rdpsndPlugin* rdpsnd, ADDIN_ARGV* args)
{
int status;
DWORD flags;
COMMAND_LINE_ARGUMENT_A* arg;
rdpsnd->wQualityMode = HIGH_QUALITY; /* default quality mode */
flags = COMMAND_LINE_SIGIL_NONE | COMMAND_LINE_SEPARATOR_COLON;
status = CommandLineParseArgumentsA(args->argc, (const char**) args->argv,
rdpsnd_args, flags, rdpsnd, NULL, NULL);
if (status < 0)
return;
arg = rdpsnd_args;
do
{
if (!(arg->Flags & COMMAND_LINE_VALUE_PRESENT))
continue;
CommandLineSwitchStart(arg)
CommandLineSwitchCase(arg, "sys")
{
rdpsnd_set_subsystem(rdpsnd, arg->Value);
}
CommandLineSwitchCase(arg, "dev")
{
rdpsnd_set_device_name(rdpsnd, arg->Value);
}
CommandLineSwitchCase(arg, "format")
{
rdpsnd->fixedFormat = atoi(arg->Value);
}
CommandLineSwitchCase(arg, "rate")
{
rdpsnd->fixedRate = atoi(arg->Value);
}
CommandLineSwitchCase(arg, "channel")
{
rdpsnd->fixedChannel = atoi(arg->Value);
}
CommandLineSwitchCase(arg, "latency")
{
rdpsnd->latency = atoi(arg->Value);
}
CommandLineSwitchCase(arg, "quality")
{
int wQualityMode = DYNAMIC_QUALITY;
if (_stricmp(arg->Value, "dynamic") == 0)
wQualityMode = DYNAMIC_QUALITY;
else if (_stricmp(arg->Value, "medium") == 0)
wQualityMode = MEDIUM_QUALITY;
else if (_stricmp(arg->Value, "high") == 0)
wQualityMode = HIGH_QUALITY;
else
wQualityMode = atoi(arg->Value);
if ((wQualityMode < 0) || (wQualityMode > 2))
wQualityMode = DYNAMIC_QUALITY;
rdpsnd->wQualityMode = (UINT16) wQualityMode;
}
CommandLineSwitchDefault(arg)
{
}
CommandLineSwitchEnd(arg)
}
while ((arg = CommandLineFindNextArgumentA(arg)) != NULL);
}
static void rdpsnd_process_connect(rdpsndPlugin* rdpsnd)
{
ADDIN_ARGV* args;
rdpsnd->latency = -1;
args = (ADDIN_ARGV*) rdpsnd->channelEntryPoints.pExtendedData;
if (args)
rdpsnd_process_addin_args(rdpsnd, args);
if (rdpsnd->subsystem)
{
if (strcmp(rdpsnd->subsystem, "fake") == 0)
{
return;
}
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
#if defined(WITH_IOSAUDIO)
if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "ios");
rdpsnd_set_device_name(rdpsnd, "");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
#endif
#if defined(WITH_OPENSLES)
if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "opensles");
rdpsnd_set_device_name(rdpsnd, "");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
#endif
#if defined(WITH_PULSE)
if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "pulse");
rdpsnd_set_device_name(rdpsnd, "");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
#endif
#if defined(WITH_ALSA)
if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "alsa");
rdpsnd_set_device_name(rdpsnd, "default");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
#endif
#if defined(WITH_MACAUDIO)
if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "mac");
rdpsnd_set_device_name(rdpsnd, "default");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
#endif
#if defined(WITH_WINMM)
if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "winmm");
rdpsnd_set_device_name(rdpsnd, "");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
#endif
if (!rdpsnd->device)
{
DEBUG_WARN("no sound device.");
return;
}
if (!rdpsnd->device->DisableConfirmThread)
{
rdpsnd->ScheduleThread = CreateThread(NULL, 0,
(LPTHREAD_START_ROUTINE) rdpsnd_schedule_thread,
(void*) rdpsnd, 0, NULL);
}
}
/****************************************************************************************/
static wListDictionary* g_InitHandles;
static wListDictionary* g_OpenHandles;
void rdpsnd_add_init_handle_data(void* pInitHandle, void* pUserData)
{
if (!g_InitHandles)
g_InitHandles = ListDictionary_New(TRUE);
ListDictionary_Add(g_InitHandles, pInitHandle, pUserData);
}
void* rdpsnd_get_init_handle_data(void* pInitHandle)
{
void* pUserData = NULL;
pUserData = ListDictionary_GetItemValue(g_InitHandles, pInitHandle);
return pUserData;
}
void rdpsnd_remove_init_handle_data(void* pInitHandle)
{
ListDictionary_Remove(g_InitHandles, pInitHandle);
}
void rdpsnd_add_open_handle_data(DWORD openHandle, void* pUserData)
{
void* pOpenHandle = (void*) (size_t) openHandle;
if (!g_OpenHandles)
g_OpenHandles = ListDictionary_New(TRUE);
ListDictionary_Add(g_OpenHandles, pOpenHandle, pUserData);
}
void* rdpsnd_get_open_handle_data(DWORD openHandle)
{
void* pUserData = NULL;
void* pOpenHandle = (void*) (size_t) openHandle;
pUserData = ListDictionary_GetItemValue(g_OpenHandles, pOpenHandle);
return pUserData;
}
void rdpsnd_remove_open_handle_data(DWORD openHandle)
{
void* pOpenHandle = (void*) (size_t) openHandle;
ListDictionary_Remove(g_OpenHandles, pOpenHandle);
}
int rdpsnd_virtual_channel_write(rdpsndPlugin* rdpsnd, wStream* s)
{
UINT32 status = 0;
if (!rdpsnd)
{
status = CHANNEL_RC_BAD_INIT_HANDLE;
}
else
{
status = rdpsnd->channelEntryPoints.pVirtualChannelWrite(rdpsnd->OpenHandle,
Stream_Buffer(s), (UINT32) Stream_GetPosition(s), s);
}
if (status != CHANNEL_RC_OK)
{
Stream_Free(s, TRUE);
fprintf(stderr, "rdpdr_virtual_channel_write: VirtualChannelWrite failed %d\n", status);
}
return status;
}
static void rdpsnd_virtual_channel_event_data_received(rdpsndPlugin* plugin,
void* pData, UINT32 dataLength, UINT32 totalLength, UINT32 dataFlags)
{
wStream* s;
if ((dataFlags & CHANNEL_FLAG_SUSPEND) || (dataFlags & CHANNEL_FLAG_RESUME))
{
return;
}
if (dataFlags & CHANNEL_FLAG_FIRST)
{
if (plugin->data_in != NULL)
Stream_Free(plugin->data_in, TRUE);
plugin->data_in = Stream_New(NULL, totalLength);
}
s = plugin->data_in;
Stream_EnsureRemainingCapacity(s, (int) dataLength);
Stream_Write(s, pData, dataLength);
if (dataFlags & CHANNEL_FLAG_LAST)
{
if (Stream_Capacity(s) != Stream_GetPosition(s))
{
fprintf(stderr, "rdpsnd_virtual_channel_event_data_received: read error\n");
}
plugin->data_in = NULL;
Stream_SealLength(s);
Stream_SetPosition(s, 0);
MessageQueue_Post(plugin->MsgPipe->In, NULL, 0, (void*) s, NULL);
}
}
static VOID VCAPITYPE rdpsnd_virtual_channel_open_event(DWORD openHandle, UINT event,
LPVOID pData, UINT32 dataLength, UINT32 totalLength, UINT32 dataFlags)
{
rdpsndPlugin* plugin;
plugin = (rdpsndPlugin*) rdpsnd_get_open_handle_data(openHandle);
if (!plugin)
{
fprintf(stderr, "rdpsnd_virtual_channel_open_event: error no match\n");
return;
}
switch (event)
{
case CHANNEL_EVENT_DATA_RECEIVED:
rdpsnd_virtual_channel_event_data_received(plugin, pData, dataLength, totalLength, dataFlags);
break;
case CHANNEL_EVENT_WRITE_COMPLETE:
Stream_Free((wStream*) pData, TRUE);
break;
case CHANNEL_EVENT_USER:
break;
}
}
static void* rdpsnd_virtual_channel_client_thread(void* arg)
{
wStream* data;
wMessage message;
rdpsndPlugin* plugin = (rdpsndPlugin*) arg;
rdpsnd_process_connect(plugin);
while (1)
{
if (!MessageQueue_Wait(plugin->MsgPipe->In))
break;
if (MessageQueue_Peek(plugin->MsgPipe->In, &message, TRUE))
{
if (message.id == WMQ_QUIT)
break;
if (message.id == 0)
{
data = (wStream*) message.wParam;
rdpsnd_recv_pdu(plugin, data);
}
}
}
ExitThread(0);
return NULL;
}
static void rdpsnd_virtual_channel_event_connected(rdpsndPlugin* plugin, LPVOID pData, UINT32 dataLength)
{
UINT32 status;
status = plugin->channelEntryPoints.pVirtualChannelOpen(plugin->InitHandle,
&plugin->OpenHandle, plugin->channelDef.name, rdpsnd_virtual_channel_open_event);
rdpsnd_add_open_handle_data(plugin->OpenHandle, plugin);
if (status != CHANNEL_RC_OK)
{
fprintf(stderr, "rdpsnd_virtual_channel_event_connected: open failed: status: %d\n", status);
return;
}
plugin->MsgPipe = MessagePipe_New();
plugin->thread = CreateThread(NULL, 0,
(LPTHREAD_START_ROUTINE) rdpsnd_virtual_channel_client_thread, (void*) plugin, 0, NULL);
}
static void rdpsnd_virtual_channel_event_terminated(rdpsndPlugin* rdpsnd)
{
MessagePipe_PostQuit(rdpsnd->MsgPipe, 0);
WaitForSingleObject(rdpsnd->thread, INFINITE);
CloseHandle(rdpsnd->thread);
rdpsnd->channelEntryPoints.pVirtualChannelClose(rdpsnd->OpenHandle);
if (rdpsnd->data_in)
{
Stream_Free(rdpsnd->data_in, TRUE);
rdpsnd->data_in = NULL;
}
if (rdpsnd->device)
IFCALL(rdpsnd->device->Free, rdpsnd->device);
if (rdpsnd->subsystem)
free(rdpsnd->subsystem);
if (rdpsnd->device_name)
free(rdpsnd->device_name);
rdpsnd_free_audio_formats(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
rdpsnd->NumberOfServerFormats = 0;
rdpsnd->ServerFormats = NULL;
rdpsnd_free_audio_formats(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
rdpsnd->NumberOfClientFormats = 0;
rdpsnd->ClientFormats = NULL;
rdpsnd_remove_open_handle_data(rdpsnd->OpenHandle);
rdpsnd_remove_init_handle_data(rdpsnd->InitHandle);
}
static VOID VCAPITYPE rdpsnd_virtual_channel_init_event(LPVOID pInitHandle, UINT event, LPVOID pData, UINT dataLength)
{
rdpsndPlugin* plugin;
plugin = (rdpsndPlugin*) rdpsnd_get_init_handle_data(pInitHandle);
if (!plugin)
{
fprintf(stderr, "rdpsnd_virtual_channel_init_event: error no match\n");
return;
}
switch (event)
{
case CHANNEL_EVENT_CONNECTED:
rdpsnd_virtual_channel_event_connected(plugin, pData, dataLength);
break;
case CHANNEL_EVENT_DISCONNECTED:
break;
case CHANNEL_EVENT_TERMINATED:
rdpsnd_virtual_channel_event_terminated(plugin);
break;
}
}
/* rdpsnd is always built-in */
#define VirtualChannelEntry rdpsnd_VirtualChannelEntry
BOOL VCAPITYPE VirtualChannelEntry(PCHANNEL_ENTRY_POINTS pEntryPoints)
{
rdpsndPlugin* rdpsnd;
rdpsnd = (rdpsndPlugin*) malloc(sizeof(rdpsndPlugin));
if (rdpsnd)
{
ZeroMemory(rdpsnd, sizeof(rdpsndPlugin));
#if !defined(_WIN32) && !defined(ANDROID)
{
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGIO);
pthread_sigmask(SIG_BLOCK, &mask, NULL);
}
#endif
rdpsnd->channelDef.options =
CHANNEL_OPTION_INITIALIZED |
CHANNEL_OPTION_ENCRYPT_RDP;
strcpy(rdpsnd->channelDef.name, "rdpsnd");
CopyMemory(&(rdpsnd->channelEntryPoints), pEntryPoints, sizeof(CHANNEL_ENTRY_POINTS_FREERDP));
rdpsnd->log = WLog_Get("com.freerdp.channels.rdpsnd.client");
rdpsnd->channelEntryPoints.pVirtualChannelInit(&rdpsnd->InitHandle,
&rdpsnd->channelDef, 1, VIRTUAL_CHANNEL_VERSION_WIN2000, rdpsnd_virtual_channel_init_event);
rdpsnd_add_init_handle_data(rdpsnd->InitHandle, (void*) rdpsnd);
}
return 1;
}
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