FreeRDP/channels/rdpsnd/client/rdpsnd_main.c

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/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Audio Output Virtual Channel
*
* Copyright 2009-2011 Jay Sorg
* Copyright 2010-2011 Vic Lee
*
* 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
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
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#include <winpr/synch.h>
#include <winpr/print.h>
#include <winpr/cmdline.h>
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#include <winpr/sysinfo.h>
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#include <winpr/collections.h>
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#include <freerdp/types.h>
#include <freerdp/addin.h>
#include <freerdp/constants.h>
#include <winpr/stream.h>
#include <freerdp/utils/signal.h>
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#include <freerdp/utils/svc_plugin.h>
#include "rdpsnd_main.h"
#define TIME_DELAY_MS 65
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struct rdpsnd_plugin
{
rdpSvcPlugin plugin;
HANDLE thread;
wMessageQueue* queue;
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BYTE cBlockNo;
int wCurrentFormatNo;
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AUDIO_FORMAT* ServerFormats;
UINT16 NumberOfServerFormats;
AUDIO_FORMAT* ClientFormats;
UINT16 NumberOfClientFormats;
BOOL expectingWave;
BYTE waveData[4];
UINT16 waveDataSize;
UINT32 wTimeStamp;
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int latency;
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BOOL isOpen;
UINT16 fixedFormat;
UINT16 fixedChannel;
UINT32 fixedRate;
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char* subsystem;
char* device_name;
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/* Device plugin */
rdpsndDevicePlugin* device;
};
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void rdpsnd_send_wave_confirm_pdu(rdpsndPlugin* rdpsnd, UINT16 wTimeStamp, BYTE cConfirmedBlockNo);
static void* rdpsnd_schedule_thread(void* arg)
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{
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wMessage message;
UINT16 wTimeDiff;
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UINT16 wTimeStamp;
UINT16 wCurrentTime;
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RDPSND_WAVE* wave;
rdpsndPlugin* rdpsnd = (rdpsndPlugin*) arg;
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while (1)
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{
if (!MessageQueue_Wait(rdpsnd->queue))
break;
if (!MessageQueue_Peek(rdpsnd->queue, &message, TRUE))
break;
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if (message.id == WMQ_QUIT)
break;
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wave = (RDPSND_WAVE*) message.wParam;
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wCurrentTime = (UINT16) GetTickCount();
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wTimeStamp = wave->wLocalTimeB;
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if (wCurrentTime <= wTimeStamp)
{
wTimeDiff = wTimeStamp - wCurrentTime;
Sleep(wTimeDiff);
}
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rdpsnd_send_wave_confirm_pdu(rdpsnd, wave->wTimeStampB, wave->cBlockNo);
free(wave);
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}
return NULL;
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}
void rdpsnd_send_quality_mode_pdu(rdpsndPlugin* rdpsnd)
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{
wStream* pdu;
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pdu = Stream_New(NULL, 8);
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Stream_Write_UINT8(pdu, SNDC_QUALITYMODE); /* msgType */
Stream_Write_UINT8(pdu, 0); /* bPad */
Stream_Write_UINT16(pdu, 4); /* BodySize */
Stream_Write_UINT16(pdu, HIGH_QUALITY); /* wQualityMode */
Stream_Write_UINT16(pdu, 0); /* Reserved */
svc_plugin_send((rdpSvcPlugin*) 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;
rdpsnd->ClientFormats = (AUDIO_FORMAT*) malloc(sizeof(AUDIO_FORMAT) * rdpsnd->NumberOfServerFormats);
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for (index = 0; index < (int) rdpsnd->NumberOfServerFormats; index++)
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{
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;
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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;
}
}
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}
#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
}
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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;
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dwVolumeLeft = ((50 * 0xFFFF) / 100); /* 50% */
dwVolumeRight = ((50 * 0xFFFF) / 100); /* 50% */
dwVolume = (dwVolumeLeft << 16) | dwVolumeRight;
if (rdpsnd->device)
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{
if (rdpsnd->device->GetVolume)
dwVolume = rdpsnd->device->GetVolume(rdpsnd->device);
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}
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wNumberOfFormats = rdpsnd->NumberOfClientFormats;
length = 4 + 20;
for (index = 0; index < (int) wNumberOfFormats; index++)
length += (18 + rdpsnd->ClientFormats[index].cbSize);
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pdu = Stream_New(NULL, length);
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Stream_Write_UINT8(pdu, SNDC_FORMATS); /* msgType */
Stream_Write_UINT8(pdu, 0); /* bPad */
Stream_Write_UINT16(pdu, length - 4); /* BodySize */
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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 */
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for (index = 0; index < (int) wNumberOfFormats; index++)
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{
clientFormat = &rdpsnd->ClientFormats[index];
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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)
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Stream_Write(pdu, clientFormat->data, clientFormat->cbSize);
}
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svc_plugin_send((rdpSvcPlugin*) rdpsnd, pdu);
}
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void rdpsnd_recv_server_audio_formats_pdu(rdpsndPlugin* rdpsnd, wStream* s)
{
int index;
UINT16 wVersion;
AUDIO_FORMAT* format;
UINT16 wNumberOfFormats;
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rdpsnd_free_audio_formats(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
rdpsnd->NumberOfServerFormats = 0;
rdpsnd->ServerFormats = NULL;
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Stream_Seek_UINT32(s); /* dwFlags */
Stream_Seek_UINT32(s); /* dwVolume */
Stream_Seek_UINT32(s); /* dwPitch */
Stream_Seek_UINT16(s); /* wDGramPort */
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Stream_Read_UINT16(s, wNumberOfFormats);
Stream_Read_UINT8(s, rdpsnd->cBlockNo); /* cLastBlockConfirmed */
Stream_Read_UINT16(s, wVersion); /* wVersion */
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Stream_Seek_UINT8(s); /* bPad */
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rdpsnd->NumberOfServerFormats = wNumberOfFormats;
rdpsnd->ServerFormats = (AUDIO_FORMAT*) malloc(sizeof(AUDIO_FORMAT) * wNumberOfFormats);
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for (index = 0; index < (int) wNumberOfFormats; index++)
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{
format = &rdpsnd->ServerFormats[index];
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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 */
format->data = (BYTE*) malloc(format->cbSize);
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Stream_Read(s, format->data, format->cbSize);
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}
rdpsnd_select_supported_audio_formats(rdpsnd);
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rdpsnd_send_client_audio_formats(rdpsnd);
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if (wVersion >= 6)
rdpsnd_send_quality_mode_pdu(rdpsnd);
}
void rdpsnd_send_training_confirm_pdu(rdpsndPlugin* rdpsnd, UINT16 wTimeStamp, UINT16 wPackSize)
{
wStream* pdu;
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pdu = Stream_New(NULL, 8);
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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);
svc_plugin_send((rdpSvcPlugin*) rdpsnd, pdu);
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}
static void rdpsnd_recv_training_pdu(rdpsndPlugin* rdpsnd, wStream* s)
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{
UINT16 wTimeStamp;
UINT16 wPackSize;
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Stream_Read_UINT16(s, wTimeStamp);
Stream_Read_UINT16(s, wPackSize);
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rdpsnd_send_training_confirm_pdu(rdpsnd, wTimeStamp, wPackSize);
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}
static void rdpsnd_recv_wave_info_pdu(rdpsndPlugin* rdpsnd, wStream* s, UINT16 BodySize)
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{
UINT16 wFormatNo;
AUDIO_FORMAT* format;
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rdpsnd->expectingWave = TRUE;
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Stream_Read_UINT16(s, rdpsnd->wTimeStamp);
Stream_Read_UINT16(s, wFormatNo);
Stream_Read_UINT8(s, rdpsnd->cBlockNo);
Stream_Seek(s, 3); /* bPad */
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Stream_Read(s, rdpsnd->waveData, 4);
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rdpsnd->waveDataSize = BodySize - 8;
format = &rdpsnd->ClientFormats[wFormatNo];
if (!rdpsnd->isOpen)
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{
rdpsnd->isOpen = TRUE;
rdpsnd->wCurrentFormatNo = wFormatNo;
//rdpsnd_print_audio_format(format);
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if (rdpsnd->device)
{
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IFCALL(rdpsnd->device->Open, rdpsnd->device, format, rdpsnd->latency);
}
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}
else if (wFormatNo != rdpsnd->wCurrentFormatNo)
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{
rdpsnd->wCurrentFormatNo = wFormatNo;
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if (rdpsnd->device)
{
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IFCALL(rdpsnd->device->SetFormat, rdpsnd->device, format, rdpsnd->latency);
}
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}
}
void rdpsnd_send_wave_confirm_pdu(rdpsndPlugin* rdpsnd, UINT16 wTimeStamp, BYTE cConfirmedBlockNo)
{
wStream* pdu;
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pdu = Stream_New(NULL, 8);
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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 */
svc_plugin_send((rdpSvcPlugin*) rdpsnd, pdu);
}
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void rdpsnd_device_send_wave_confirm_pdu(rdpsndDevicePlugin* device, RDPSND_WAVE* wave)
{
MessageQueue_Post(device->rdpsnd->queue, NULL, 0, (void*) wave, NULL);
}
static void rdpsnd_recv_wave_pdu(rdpsndPlugin* rdpsnd, wStream* s)
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{
int size;
BYTE* data;
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RDPSND_WAVE* wave;
AUDIO_FORMAT* format;
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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.
*/
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CopyMemory(Stream_Buffer(s), rdpsnd->waveData, 4);
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data = Stream_Buffer(s);
size = Stream_Capacity(s);
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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;
format = &rdpsnd->ClientFormats[rdpsnd->wCurrentFormatNo];
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wave->wAudioLength = rdpsnd_compute_audio_time_length(format, size);
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if (!rdpsnd->device)
return;
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if (rdpsnd->device->WaveDecode)
{
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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);
}
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if (!rdpsnd->device->WavePlay)
{
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wave->wTimeStampB = rdpsnd->wTimeStamp + wave->wAudioLength + TIME_DELAY_MS;
wave->wLocalTimeB = wave->wLocalTimeA + wave->wAudioLength + TIME_DELAY_MS;
rdpsnd->device->WaveConfirm(rdpsnd->device, wave);
}
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}
static void rdpsnd_recv_close_pdu(rdpsndPlugin* rdpsnd)
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{
DEBUG_SVC("server closes.");
if (rdpsnd->device)
{
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IFCALL(rdpsnd->device->Close, rdpsnd->device);
}
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rdpsnd->isOpen = FALSE;
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}
static void rdpsnd_recv_volume_pdu(rdpsndPlugin* rdpsnd, wStream* s)
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{
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UINT32 dwVolume;
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Stream_Read_UINT32(s, dwVolume);
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DEBUG_SVC("dwVolume 0x%X", dwVolume);
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if (rdpsnd->device)
{
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IFCALL(rdpsnd->device->SetVolume, rdpsnd->device, dwVolume);
}
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}
static void rdpsnd_recv_pdu(rdpSvcPlugin* plugin, wStream* s)
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{
BYTE msgType;
UINT16 BodySize;
rdpsndPlugin* rdpsnd = (rdpsndPlugin*) plugin;
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if (rdpsnd->expectingWave)
{
rdpsnd_recv_wave_pdu(rdpsnd, s);
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Stream_Free(s, TRUE);
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return;
}
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Stream_Read_UINT8(s, msgType); /* msgType */
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Stream_Seek_UINT8(s); /* bPad */
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Stream_Read_UINT16(s, BodySize);
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//fprintf(stderr, "msgType %d BodySize %d\n", msgType, BodySize);
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switch (msgType)
{
case SNDC_FORMATS:
rdpsnd_recv_server_audio_formats_pdu(rdpsnd, s);
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break;
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case SNDC_TRAINING:
rdpsnd_recv_training_pdu(rdpsnd, s);
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break;
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case SNDC_WAVE:
rdpsnd_recv_wave_info_pdu(rdpsnd, s, BodySize);
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break;
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case SNDC_CLOSE:
rdpsnd_recv_close_pdu(rdpsnd);
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break;
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case SNDC_SETVOLUME:
rdpsnd_recv_volume_pdu(rdpsnd, s);
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break;
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default:
DEBUG_WARN("unknown msgType %d", msgType);
break;
}
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Stream_Free(s, TRUE);
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}
static void rdpsnd_register_device_plugin(rdpsndPlugin* rdpsnd, rdpsndDevicePlugin* device)
{
if (rdpsnd->device)
{
DEBUG_WARN("existing device, abort.");
return;
}
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rdpsnd->device = device;
device->rdpsnd = rdpsnd;
device->WaveConfirm = rdpsnd_device_send_wave_confirm_pdu;
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}
static BOOL rdpsnd_load_device_plugin(rdpsndPlugin* rdpsnd, const char* name, ADDIN_ARGV* args)
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{
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);
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if (!entry)
return FALSE;
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entryPoints.rdpsnd = rdpsnd;
entryPoints.pRegisterRdpsndDevice = rdpsnd_register_device_plugin;
entryPoints.args = args;
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if (entry(&entryPoints) != 0)
{
DEBUG_WARN("%s entry returns error.", name);
return FALSE;
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}
return TRUE;
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}
void rdpsnd_set_subsystem(rdpsndPlugin* rdpsnd, char* subsystem)
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{
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" },
{ 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;
flags = COMMAND_LINE_SIGIL_NONE | COMMAND_LINE_SEPARATOR_COLON;
status = CommandLineParseArgumentsA(args->argc, (const char**) args->argv,
rdpsnd_args, flags, rdpsnd, NULL, NULL);
arg = rdpsnd_args;
do
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{
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);
}
CommandLineSwitchDefault(arg)
{
}
CommandLineSwitchEnd(arg)
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}
while ((arg = CommandLineFindNextArgumentA(arg)) != NULL);
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}
static void rdpsnd_process_connect(rdpSvcPlugin* plugin)
{
ADDIN_ARGV* args;
rdpsndPlugin* rdpsnd = (rdpsndPlugin*) plugin;
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DEBUG_SVC("connecting");
rdpsnd->latency = -1;
rdpsnd->queue = MessageQueue_New();
rdpsnd->thread = CreateThread(NULL, 0, (LPTHREAD_START_ROUTINE) rdpsnd_schedule_thread, (void*) plugin, 0, NULL);
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args = (ADDIN_ARGV*) plugin->channel_entry_points.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 (!rdpsnd->device)
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{
rdpsnd_set_subsystem(rdpsnd, "pulse");
rdpsnd_set_device_name(rdpsnd, "");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
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}
if (!rdpsnd->device)
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{
rdpsnd_set_subsystem(rdpsnd, "alsa");
rdpsnd_set_device_name(rdpsnd, "default");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
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if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "macaudio");
rdpsnd_set_device_name(rdpsnd, "default");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
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}
if (!rdpsnd->device)
{
rdpsnd_set_subsystem(rdpsnd, "winmm");
rdpsnd_set_device_name(rdpsnd, "");
rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args);
}
if (!rdpsnd->device)
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{
DEBUG_WARN("no sound device.");
return;
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}
}
static void rdpsnd_process_event(rdpSvcPlugin* plugin, wMessage* event)
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{
freerdp_event_free(event);
}
static void rdpsnd_process_terminate(rdpSvcPlugin* plugin)
{
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rdpsndPlugin* rdpsnd = (rdpsndPlugin*) plugin;
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if (rdpsnd->device)
IFCALL(rdpsnd->device->Free, rdpsnd->device);
MessageQueue_PostQuit(rdpsnd->queue, 0);
WaitForSingleObject(rdpsnd->thread, INFINITE);
MessageQueue_Free(rdpsnd->queue);
CloseHandle(rdpsnd->thread);
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if (rdpsnd->subsystem)
free(rdpsnd->subsystem);
if (rdpsnd->device_name)
free(rdpsnd->device_name);
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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;
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}
/* rdpsnd is always built-in */
#define VirtualChannelEntry rdpsnd_VirtualChannelEntry
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int VirtualChannelEntry(PCHANNEL_ENTRY_POINTS pEntryPoints)
{
rdpsndPlugin* _p;
_p = (rdpsndPlugin*) malloc(sizeof(rdpsndPlugin));
ZeroMemory(_p, sizeof(rdpsndPlugin));
_p->plugin.channel_def.options =
CHANNEL_OPTION_INITIALIZED |
CHANNEL_OPTION_ENCRYPT_RDP;
strcpy(_p->plugin.channel_def.name, "rdpsnd");
_p->plugin.connect_callback = rdpsnd_process_connect;
_p->plugin.receive_callback = rdpsnd_recv_pdu;
_p->plugin.event_callback = rdpsnd_process_event;
_p->plugin.terminate_callback = rdpsnd_process_terminate;
#if !defined(_WIN32) && !defined(ANDROID)
{
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGIO);
pthread_sigmask(SIG_BLOCK, &mask, NULL);
}
#endif
svc_plugin_init((rdpSvcPlugin*) _p, pEntryPoints);
return 1;
}