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channels: rdpsnd refactoring, drdynvc initial server-side code

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This commit is contained in:
Marc-André Moreau 2013-08-18 21:52:55 -04:00
parent 3d0d65e917
commit 23a8354656
23 changed files with 930 additions and 581 deletions
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3
channels/drdynvc/CMakeLists.txt
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@ -21,3 +21,6 @@ if(WITH_CLIENT_CHANNELS)
add_channel_client(${MODULE_PREFIX} ${CHANNEL_NAME}) add_channel_client(${MODULE_PREFIX} ${CHANNEL_NAME})
endif() endif()
if(WITH_SERVER_CHANNELS)
add_channel_server(${MODULE_PREFIX} ${CHANNEL_NAME})
endif()

2
channels/drdynvc/ChannelOptions.cmake
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@ -1,7 +1,7 @@
set(OPTION_DEFAULT OFF) set(OPTION_DEFAULT OFF)
set(OPTION_CLIENT_DEFAULT ON) set(OPTION_CLIENT_DEFAULT ON)
set(OPTION_SERVER_DEFAULT OFF) set(OPTION_SERVER_DEFAULT ON)
define_channel_options(NAME "drdynvc" TYPE "static" define_channel_options(NAME "drdynvc" TYPE "static"
DESCRIPTION "Dynamic Virtual Channel Extension" DESCRIPTION "Dynamic Virtual Channel Extension"

35
channels/drdynvc/server/CMakeLists.txt Normal file
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@ -0,0 +1,35 @@
# FreeRDP: A Remote Desktop Protocol Implementation
# FreeRDP cmake build script
#
# Copyright 2012 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.
define_channel_server("drdynvc")
set(${MODULE_PREFIX}_SRCS
drdynvc_main.c
drdynvc_main.h)
add_channel_server_library(${MODULE_PREFIX} ${MODULE_NAME} ${CHANNEL_NAME} FALSE "VirtualChannelEntry")
set_target_properties(${MODULE_NAME} PROPERTIES PREFIX "")
set_complex_link_libraries(VARIABLE ${MODULE_PREFIX}_LIBS
MONOLITHIC ${MONOLITHIC_BUILD}
MODULE freerdp
MODULES freerdp-utils)
target_link_libraries(${MODULE_NAME} ${${MODULE_PREFIX}_LIBS})
set_property(TARGET ${MODULE_NAME} PROPERTY FOLDER "Channels/${CHANNEL_NAME}/Server")

149
channels/drdynvc/server/drdynvc_main.c Normal file
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@ -0,0 +1,149 @@
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Dynamic Virtual Channel Extension
*
* Copyright 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
#include <winpr/crt.h>
#include <winpr/print.h>
#include <winpr/stream.h>
#include "drdynvc_main.h"
static void* drdynvc_server_thread(void* arg)
{
wStream* s;
DWORD status;
DWORD nCount;
void* buffer;
HANDLE events[8];
HANDLE ChannelEvent;
UINT32 BytesReturned;
DrdynvcServerContext* context;
context = (DrdynvcServerContext*) arg;
buffer = NULL;
BytesReturned = 0;
ChannelEvent = NULL;
s = Stream_New(NULL, 4096);
if (WTSVirtualChannelQuery(context->priv->ChannelHandle, WTSVirtualEventHandle, &buffer, &BytesReturned) == TRUE)
{
if (BytesReturned == sizeof(HANDLE))
CopyMemory(&ChannelEvent, buffer, sizeof(HANDLE));
WTSFreeMemory(buffer);
}
nCount = 0;
events[nCount++] = ChannelEvent;
events[nCount++] = context->priv->StopEvent;
while (1)
{
status = WaitForMultipleObjects(nCount, events, FALSE, INFINITE);
if (WaitForSingleObject(context->priv->StopEvent, 0) == WAIT_OBJECT_0)
{
break;
}
if (WTSVirtualChannelRead(context->priv->ChannelHandle, 0,
Stream_Buffer(s), Stream_Capacity(s), &BytesReturned))
{
if (BytesReturned)
Stream_Seek(s, BytesReturned);
}
else
{
Stream_EnsureRemainingCapacity(s, BytesReturned);
}
}
Stream_Free(s, TRUE);
return NULL;
}
static int drdynvc_server_start(DrdynvcServerContext* context)
{
context->priv->ChannelHandle = WTSVirtualChannelOpenEx(context->vcm, "rdpdr", 0);
if (!context->priv->ChannelHandle)
return -1;
context->priv->StopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
context->priv->Thread = CreateThread(NULL, 0,
(LPTHREAD_START_ROUTINE) drdynvc_server_thread, (void*) context, 0, NULL);
return 0;
}
static int drdynvc_server_stop(DrdynvcServerContext* context)
{
SetEvent(context->priv->StopEvent);
WaitForSingleObject(context->priv->Thread, INFINITE);
CloseHandle(context->priv->Thread);
return 0;
}
DrdynvcServerContext* drdynvc_server_context_new(WTSVirtualChannelManager* vcm)
{
DrdynvcServerContext* context;
context = (DrdynvcServerContext*) malloc(sizeof(DrdynvcServerContext));
if (context)
{
ZeroMemory(context, sizeof(DrdynvcServerContext));
context->vcm = vcm;
context->Start = drdynvc_server_start;
context->Stop = drdynvc_server_stop;
context->priv = (DrdynvcServerPrivate*) malloc(sizeof(DrdynvcServerPrivate));
if (context->priv)
{
ZeroMemory(context->priv, sizeof(DrdynvcServerPrivate));
}
}
return context;
}
void drdynvc_server_context_free(DrdynvcServerContext* context)
{
if (context)
{
if (context->priv)
{
free(context->priv);
}
free(context);
}
}

37
channels/drdynvc/server/drdynvc_main.h Normal file
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@ -0,0 +1,37 @@
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Dynamic Virtual Channel Extension
*
* Copyright 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.
*/
#ifndef FREERDP_CHANNEL_SERVER_DRDYNVC_MAIN_H
#define FREERDP_CHANNEL_SERVER_DRDYNVC_MAIN_H
#include <winpr/crt.h>
#include <winpr/synch.h>
#include <winpr/thread.h>
#include <freerdp/settings.h>
#include <freerdp/server/drdynvc.h>
struct _drdynvc_server_private
{
HANDLE Thread;
HANDLE StopEvent;
void* ChannelHandle;
};
#endif /* FREERDP_CHANNEL_SERVER_DRDYNVC_MAIN_H */

3
channels/rdpsnd/server/CMakeLists.txt
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@ -18,7 +18,8 @@
define_channel_server("rdpsnd") define_channel_server("rdpsnd")
set(${MODULE_PREFIX}_SRCS set(${MODULE_PREFIX}_SRCS
rdpsnd.c) rdpsnd_main.c
rdpsnd_main.h)
add_channel_server_library(${MODULE_PREFIX} ${MODULE_NAME} ${CHANNEL_NAME} FALSE "VirtualChannelEntry") add_channel_server_library(${MODULE_PREFIX} ${MODULE_NAME} ${CHANNEL_NAME} FALSE "VirtualChannelEntry")

560
channels/rdpsnd/server/rdpsnd.c
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@ -1,560 +0,0 @@
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Server Audio Virtual Channel
*
* Copyright 2012 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
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/print.h>
#include <winpr/synch.h>
#include <winpr/thread.h>
#include <winpr/stream.h>
#include <freerdp/codec/dsp.h>
#include <freerdp/channels/wtsvc.h>
#include <freerdp/server/rdpsnd.h>
typedef struct _rdpsnd_server
{
rdpsnd_server_context context;
HANDLE thread;
HANDLE StopEvent;
void* rdpsnd_channel;
wStream* rdpsnd_pdu;
FREERDP_DSP_CONTEXT* dsp_context;
BYTE* out_buffer;
int out_buffer_size;
int out_frames;
int out_pending_frames;
UINT32 src_bytes_per_sample;
UINT32 src_bytes_per_frame;
} rdpsnd_server;
static BOOL rdpsnd_server_send_formats(rdpsnd_server* rdpsnd, wStream* s)
{
int pos;
UINT16 i;
BOOL status;
Stream_Write_UINT8(s, SNDC_FORMATS);
Stream_Write_UINT8(s, 0);
Stream_Seek_UINT16(s);
Stream_Write_UINT32(s, 0); /* dwFlags */
Stream_Write_UINT32(s, 0); /* dwVolume */
Stream_Write_UINT32(s, 0); /* dwPitch */
Stream_Write_UINT16(s, 0); /* wDGramPort */
Stream_Write_UINT16(s, rdpsnd->context.num_server_formats); /* wNumberOfFormats */
Stream_Write_UINT8(s, rdpsnd->context.block_no); /* cLastBlockConfirmed */
Stream_Write_UINT16(s, 0x06); /* wVersion */
Stream_Write_UINT8(s, 0); /* bPad */
for (i = 0; i < rdpsnd->context.num_server_formats; i++)
{
Stream_Write_UINT16(s, rdpsnd->context.server_formats[i].wFormatTag); /* wFormatTag (WAVE_FORMAT_PCM) */
Stream_Write_UINT16(s, rdpsnd->context.server_formats[i].nChannels); /* nChannels */
Stream_Write_UINT32(s, rdpsnd->context.server_formats[i].nSamplesPerSec); /* nSamplesPerSec */
Stream_Write_UINT32(s, rdpsnd->context.server_formats[i].nSamplesPerSec *
rdpsnd->context.server_formats[i].nChannels *
rdpsnd->context.server_formats[i].wBitsPerSample / 8); /* nAvgBytesPerSec */
Stream_Write_UINT16(s, rdpsnd->context.server_formats[i].nBlockAlign); /* nBlockAlign */
Stream_Write_UINT16(s, rdpsnd->context.server_formats[i].wBitsPerSample); /* wBitsPerSample */
Stream_Write_UINT16(s, rdpsnd->context.server_formats[i].cbSize); /* cbSize */
if (rdpsnd->context.server_formats[i].cbSize > 0)
{
Stream_Write(s, rdpsnd->context.server_formats[i].data, rdpsnd->context.server_formats[i].cbSize);
}
}
pos = Stream_GetPosition(s);
Stream_SetPosition(s, 2);
Stream_Write_UINT16(s, pos - 4);
Stream_SetPosition(s, pos);
status = WTSVirtualChannelWrite(rdpsnd->rdpsnd_channel, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
return status;
}
static void rdpsnd_server_recv_waveconfirm(rdpsnd_server* rdpsnd, wStream* s)
{
//unhandled for now
UINT16 timestamp = 0;
BYTE confirmBlockNum = 0;
Stream_Read_UINT16(s, timestamp);
Stream_Read_UINT8(s, confirmBlockNum);
Stream_Seek_UINT8(s); // padding
}
static void rdpsnd_server_recv_quality_mode(rdpsnd_server* rdpsnd, wStream* s)
{
//unhandled for now
UINT16 quality;
Stream_Read_UINT16(s, quality);
Stream_Seek_UINT16(s); // reserved
fprintf(stderr, "Client requested sound quality: %#0X\n", quality);
}
static BOOL rdpsnd_server_recv_formats(rdpsnd_server* rdpsnd, wStream* s)
{
int i, num_known_format = 0;
UINT32 flags, vol, pitch;
UINT16 udpPort, version;
BYTE lastblock;
Stream_Read_UINT32(s, flags); /* dwFlags */
Stream_Read_UINT32(s, vol); /* dwVolume */
Stream_Read_UINT32(s, pitch); /* dwPitch */
Stream_Read_UINT16(s, udpPort); /* wDGramPort */
Stream_Read_UINT16(s, rdpsnd->context.num_client_formats); /* wNumberOfFormats */
Stream_Read_UINT8(s, lastblock); /* cLastBlockConfirmed */
Stream_Read_UINT16(s, version); /* wVersion */
Stream_Seek_UINT8(s); /* bPad */
if (rdpsnd->context.num_client_formats > 0)
{
rdpsnd->context.client_formats = (AUDIO_FORMAT*) malloc(rdpsnd->context.num_client_formats * sizeof(AUDIO_FORMAT));
ZeroMemory(rdpsnd->context.client_formats, sizeof(AUDIO_FORMAT));
for (i = 0; i < rdpsnd->context.num_client_formats; i++)
{
Stream_Read_UINT16(s, rdpsnd->context.client_formats[i].wFormatTag);
Stream_Read_UINT16(s, rdpsnd->context.client_formats[i].nChannels);
Stream_Read_UINT32(s, rdpsnd->context.client_formats[i].nSamplesPerSec);
Stream_Read_UINT32(s, rdpsnd->context.client_formats[i].nAvgBytesPerSec);
Stream_Read_UINT16(s, rdpsnd->context.client_formats[i].nBlockAlign);
Stream_Read_UINT16(s, rdpsnd->context.client_formats[i].wBitsPerSample);
Stream_Read_UINT16(s, rdpsnd->context.client_formats[i].cbSize);
if (rdpsnd->context.client_formats[i].cbSize > 0)
{
Stream_Seek(s, rdpsnd->context.client_formats[i].cbSize);
}
if (rdpsnd->context.client_formats[i].wFormatTag != 0)
{
//lets call this a known format
//TODO: actually look through our own list of known formats
num_known_format++;
}
}
}
if (num_known_format == 0)
{
fprintf(stderr, "Client doesnt support any known formats!\n");
return FALSE;
}
return TRUE;
}
static void* rdpsnd_server_thread_func(void* arg)
{
void* fd;
wStream* s;
void* buffer;
DWORD status;
BYTE msgType;
UINT16 BodySize;
HANDLE events[2];
UINT32 bytes_returned = 0;
rdpsnd_server* rdpsnd = (rdpsnd_server*) arg;
events[0] = rdpsnd->StopEvent;
if (WTSVirtualChannelQuery(rdpsnd->rdpsnd_channel, WTSVirtualFileHandle, &buffer, &bytes_returned) == TRUE)
{
fd = *((void**) buffer);
WTSFreeMemory(buffer);
events[1] = CreateWaitObjectEvent(NULL, TRUE, FALSE, fd);
}
s = Stream_New(NULL, 4096);
rdpsnd_server_send_formats(rdpsnd, s);
while (1)
{
status = WaitForMultipleObjects(2, events, FALSE, INFINITE);
if (WaitForSingleObject(rdpsnd->StopEvent, 0) == WAIT_OBJECT_0)
{
break;
}
Stream_SetPosition(s, 0);
if (WTSVirtualChannelRead(rdpsnd->rdpsnd_channel, 0, Stream_Buffer(s),
Stream_Capacity(s), &bytes_returned) == FALSE)
{
if (bytes_returned == 0)
break;
Stream_EnsureRemainingCapacity(s, (int) bytes_returned);
if (WTSVirtualChannelRead(rdpsnd->rdpsnd_channel, 0, Stream_Buffer(s),
Stream_Capacity(s), &bytes_returned) == FALSE)
break;
}
Stream_Read_UINT8(s, msgType);
Stream_Seek_UINT8(s); /* bPad */
Stream_Read_UINT16(s, BodySize);
switch (msgType)
{
case SNDC_WAVECONFIRM:
rdpsnd_server_recv_waveconfirm(rdpsnd, s);
break;
case SNDC_QUALITYMODE:
rdpsnd_server_recv_quality_mode(rdpsnd, s);
break;
case SNDC_FORMATS:
if (rdpsnd_server_recv_formats(rdpsnd, s))
{
IFCALL(rdpsnd->context.Activated, &rdpsnd->context);
}
break;
default:
fprintf(stderr, "UNKOWN MESSAGE TYPE!! (%#0X)\n\n", msgType);
break;
}
}
Stream_Free(s, TRUE);
return NULL;
}
static BOOL rdpsnd_server_initialize(rdpsnd_server_context* context)
{
rdpsnd_server* rdpsnd = (rdpsnd_server*) context;
rdpsnd->rdpsnd_channel = WTSVirtualChannelOpenEx(context->vcm, "rdpsnd", 0);
if (rdpsnd->rdpsnd_channel != NULL)
{
rdpsnd->rdpsnd_pdu = Stream_New(NULL, 4096);
rdpsnd->StopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
rdpsnd->thread = CreateThread(NULL, 0,
(LPTHREAD_START_ROUTINE) rdpsnd_server_thread_func, (void*) rdpsnd, 0, NULL);
return TRUE;
}
else
{
return FALSE;
}
}
static void rdpsnd_server_select_format(rdpsnd_server_context* context, int client_format_index)
{
int bs;
int out_buffer_size;
AUDIO_FORMAT *format;
rdpsnd_server* rdpsnd = (rdpsnd_server*) context;
if (client_format_index < 0 || client_format_index >= context->num_client_formats)
{
fprintf(stderr, "rdpsnd_server_select_format: index %d is not correct.\n", client_format_index);
return;
}
rdpsnd->src_bytes_per_sample = context->src_format.wBitsPerSample / 8;
rdpsnd->src_bytes_per_frame = rdpsnd->src_bytes_per_sample * context->src_format.nChannels;
context->selected_client_format = client_format_index;
format = &context->client_formats[client_format_index];
if (format->nSamplesPerSec == 0)
{
fprintf(stderr, "Invalid Client Sound Format!!\n\n");
return;
}
if (format->wFormatTag == WAVE_FORMAT_DVI_ADPCM)
{
bs = (format->nBlockAlign - 4 * format->nChannels) * 4;
rdpsnd->out_frames = (format->nBlockAlign * 4 * format->nChannels * 2 / bs + 1) * bs / (format->nChannels * 2);
}
else if (format->wFormatTag == WAVE_FORMAT_ADPCM)
{
bs = (format->nBlockAlign - 7 * format->nChannels) * 2 / format->nChannels + 2;
rdpsnd->out_frames = bs * 4;
}
else
{
rdpsnd->out_frames = 0x4000 / rdpsnd->src_bytes_per_frame;
}
if (format->nSamplesPerSec != context->src_format.nSamplesPerSec)
{
rdpsnd->out_frames = (rdpsnd->out_frames * context->src_format.nSamplesPerSec + format->nSamplesPerSec - 100) / format->nSamplesPerSec;
}
rdpsnd->out_pending_frames = 0;
out_buffer_size = rdpsnd->out_frames * rdpsnd->src_bytes_per_frame;
if (rdpsnd->out_buffer_size < out_buffer_size)
{
rdpsnd->out_buffer = (BYTE*) realloc(rdpsnd->out_buffer, out_buffer_size);
rdpsnd->out_buffer_size = out_buffer_size;
}
freerdp_dsp_context_reset_adpcm(rdpsnd->dsp_context);
}
static BOOL rdpsnd_server_send_audio_pdu(rdpsnd_server* rdpsnd)
{
int size;
BYTE* src;
int frames;
int fill_size;
BOOL status;
AUDIO_FORMAT* format;
int tbytes_per_frame;
wStream* s = rdpsnd->rdpsnd_pdu;
format = &rdpsnd->context.client_formats[rdpsnd->context.selected_client_format];
tbytes_per_frame = format->nChannels * rdpsnd->src_bytes_per_sample;
if ((format->nSamplesPerSec == rdpsnd->context.src_format.nSamplesPerSec) &&
(format->nChannels == rdpsnd->context.src_format.nChannels))
{
src = rdpsnd->out_buffer;
frames = rdpsnd->out_pending_frames;
}
else
{
rdpsnd->dsp_context->resample(rdpsnd->dsp_context, rdpsnd->out_buffer, rdpsnd->src_bytes_per_sample,
rdpsnd->context.src_format.nChannels, rdpsnd->context.src_format.nSamplesPerSec, rdpsnd->out_pending_frames,
format->nChannels, format->nSamplesPerSec);
frames = rdpsnd->dsp_context->resampled_frames;
src = rdpsnd->dsp_context->resampled_buffer;
}
size = frames * tbytes_per_frame;
if (format->wFormatTag == WAVE_FORMAT_DVI_ADPCM)
{
rdpsnd->dsp_context->encode_ima_adpcm(rdpsnd->dsp_context,
src, size, format->nChannels, format->nBlockAlign);
src = rdpsnd->dsp_context->adpcm_buffer;
size = rdpsnd->dsp_context->adpcm_size;
}
else if (format->wFormatTag == WAVE_FORMAT_ADPCM)
{
rdpsnd->dsp_context->encode_ms_adpcm(rdpsnd->dsp_context,
src, size, format->nChannels, format->nBlockAlign);
src = rdpsnd->dsp_context->adpcm_buffer;
size = rdpsnd->dsp_context->adpcm_size;
}
rdpsnd->context.block_no = (rdpsnd->context.block_no + 1) % 256;
/* Fill to nBlockAlign for the last audio packet */
fill_size = 0;
if ((format->wFormatTag == WAVE_FORMAT_DVI_ADPCM || format->wFormatTag == WAVE_FORMAT_ADPCM) &&
(rdpsnd->out_pending_frames < rdpsnd->out_frames) && ((size % format->nBlockAlign) != 0))
{
fill_size = format->nBlockAlign - (size % format->nBlockAlign);
}
/* WaveInfo PDU */
Stream_SetPosition(s, 0);
Stream_Write_UINT8(s, SNDC_WAVE); /* msgType */
Stream_Write_UINT8(s, 0); /* bPad */
Stream_Write_UINT16(s, size + fill_size + 8); /* BodySize */
Stream_Write_UINT16(s, 0); /* wTimeStamp */
Stream_Write_UINT16(s, rdpsnd->context.selected_client_format); /* wFormatNo */
Stream_Write_UINT8(s, rdpsnd->context.block_no); /* cBlockNo */
Stream_Seek(s, 3); /* bPad */
Stream_Write(s, src, 4);
WTSVirtualChannelWrite(rdpsnd->rdpsnd_channel, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
/* Wave PDU */
Stream_EnsureRemainingCapacity(s, size + fill_size);
Stream_Write_UINT32(s, 0); /* bPad */
Stream_Write(s, src + 4, size - 4);
if (fill_size > 0)
Stream_Zero(s, fill_size);
status = WTSVirtualChannelWrite(rdpsnd->rdpsnd_channel, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
rdpsnd->out_pending_frames = 0;
return status;
}
static BOOL rdpsnd_server_send_samples(rdpsnd_server_context* context, const void* buf, int nframes)
{
int cframes;
int cframesize;
rdpsnd_server* rdpsnd = (rdpsnd_server*) context;
if (rdpsnd->context.selected_client_format < 0)
return FALSE;
while (nframes > 0)
{
cframes = MIN(nframes, rdpsnd->out_frames - rdpsnd->out_pending_frames);
cframesize = cframes * rdpsnd->src_bytes_per_frame;
CopyMemory(rdpsnd->out_buffer + (rdpsnd->out_pending_frames * rdpsnd->src_bytes_per_frame), buf, cframesize);
buf = (BYTE*) buf + cframesize;
nframes -= cframes;
rdpsnd->out_pending_frames += cframes;
if (rdpsnd->out_pending_frames >= rdpsnd->out_frames)
{
if (!rdpsnd_server_send_audio_pdu(rdpsnd))
return FALSE;
}
}
return TRUE;
}
static BOOL rdpsnd_server_set_volume(rdpsnd_server_context* context, int left, int right)
{
int pos;
BOOL status;
rdpsnd_server* rdpsnd = (rdpsnd_server*) context;
wStream* s = rdpsnd->rdpsnd_pdu;
Stream_Write_UINT8(s, SNDC_SETVOLUME);
Stream_Write_UINT8(s, 0);
Stream_Seek_UINT16(s);
Stream_Write_UINT16(s, left);
Stream_Write_UINT16(s, right);
pos = Stream_GetPosition(s);
Stream_SetPosition(s, 2);
Stream_Write_UINT16(s, pos - 4);
Stream_SetPosition(s, pos);
status = WTSVirtualChannelWrite(rdpsnd->rdpsnd_channel, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
return status;
}
static BOOL rdpsnd_server_close(rdpsnd_server_context* context)
{
int pos;
BOOL status;
rdpsnd_server* rdpsnd = (rdpsnd_server*) context;
wStream* s = rdpsnd->rdpsnd_pdu;
if (rdpsnd->context.selected_client_format < 0)
return FALSE;
if (rdpsnd->out_pending_frames > 0)
{
if (!rdpsnd_server_send_audio_pdu(rdpsnd))
return FALSE;
}
rdpsnd->context.selected_client_format = -1;
Stream_Write_UINT8(s, SNDC_CLOSE);
Stream_Write_UINT8(s, 0);
Stream_Seek_UINT16(s);
pos = Stream_GetPosition(s);
Stream_SetPosition(s, 2);
Stream_Write_UINT16(s, pos - 4);
Stream_SetPosition(s, pos);
status = WTSVirtualChannelWrite(rdpsnd->rdpsnd_channel, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
return status;
}
rdpsnd_server_context* rdpsnd_server_context_new(WTSVirtualChannelManager* vcm)
{
rdpsnd_server* rdpsnd;
rdpsnd = (rdpsnd_server*) malloc(sizeof(rdpsnd_server));
ZeroMemory(rdpsnd, sizeof(rdpsnd_server));
rdpsnd->context.vcm = vcm;
rdpsnd->context.selected_client_format = -1;
rdpsnd->context.Initialize = rdpsnd_server_initialize;
rdpsnd->context.SelectFormat = rdpsnd_server_select_format;
rdpsnd->context.SendSamples = rdpsnd_server_send_samples;
rdpsnd->context.SetVolume = rdpsnd_server_set_volume;
rdpsnd->context.Close = rdpsnd_server_close;
rdpsnd->dsp_context = freerdp_dsp_context_new();
return (rdpsnd_server_context*) rdpsnd;
}
void rdpsnd_server_context_free(rdpsnd_server_context* context)
{
rdpsnd_server* rdpsnd = (rdpsnd_server*) context;
SetEvent(rdpsnd->StopEvent);
WaitForSingleObject(rdpsnd->thread, INFINITE);
if (rdpsnd->rdpsnd_channel)
WTSVirtualChannelClose(rdpsnd->rdpsnd_channel);
if (rdpsnd->rdpsnd_pdu)
Stream_Free(rdpsnd->rdpsnd_pdu, TRUE);
if (rdpsnd->out_buffer)
free(rdpsnd->out_buffer);
if (rdpsnd->dsp_context)
freerdp_dsp_context_free(rdpsnd->dsp_context);
if (rdpsnd->context.client_formats)
free(rdpsnd->context.client_formats);
free(rdpsnd);
}

572
channels/rdpsnd/server/rdpsnd_main.c Normal file
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@ -0,0 +1,572 @@
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Server Audio Virtual Channel
*
* Copyright 2012 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
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/print.h>
#include <winpr/stream.h>
#include "rdpsnd_main.h"
static BOOL rdpsnd_server_send_formats(RdpsndServerContext* context, wStream* s)
{
int pos;
UINT16 i;
BOOL status;
Stream_Write_UINT8(s, SNDC_FORMATS);
Stream_Write_UINT8(s, 0);
Stream_Seek_UINT16(s);
Stream_Write_UINT32(s, 0); /* dwFlags */
Stream_Write_UINT32(s, 0); /* dwVolume */
Stream_Write_UINT32(s, 0); /* dwPitch */
Stream_Write_UINT16(s, 0); /* wDGramPort */
Stream_Write_UINT16(s, context->num_server_formats); /* wNumberOfFormats */
Stream_Write_UINT8(s, context->block_no); /* cLastBlockConfirmed */
Stream_Write_UINT16(s, 0x06); /* wVersion */
Stream_Write_UINT8(s, 0); /* bPad */
for (i = 0; i < context->num_server_formats; i++)
{
Stream_Write_UINT16(s, context->server_formats[i].wFormatTag); /* wFormatTag (WAVE_FORMAT_PCM) */
Stream_Write_UINT16(s, context->server_formats[i].nChannels); /* nChannels */
Stream_Write_UINT32(s, context->server_formats[i].nSamplesPerSec); /* nSamplesPerSec */
Stream_Write_UINT32(s, context->server_formats[i].nSamplesPerSec *
context->server_formats[i].nChannels *
context->server_formats[i].wBitsPerSample / 8); /* nAvgBytesPerSec */
Stream_Write_UINT16(s, context->server_formats[i].nBlockAlign); /* nBlockAlign */
Stream_Write_UINT16(s, context->server_formats[i].wBitsPerSample); /* wBitsPerSample */
Stream_Write_UINT16(s, context->server_formats[i].cbSize); /* cbSize */
if (context->server_formats[i].cbSize > 0)
{
Stream_Write(s, context->server_formats[i].data, context->server_formats[i].cbSize);
}
}
pos = Stream_GetPosition(s);
Stream_SetPosition(s, 2);
Stream_Write_UINT16(s, pos - 4);
Stream_SetPosition(s, pos);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
return status;
}
static void rdpsnd_server_recv_waveconfirm(RdpsndServerContext* context, wStream* s)
{
UINT16 timestamp = 0;
BYTE confirmBlockNum = 0;
Stream_Read_UINT16(s, timestamp);
Stream_Read_UINT8(s, confirmBlockNum);
Stream_Seek_UINT8(s);
}
static void rdpsnd_server_recv_quality_mode(RdpsndServerContext* context, wStream* s)
{
UINT16 quality;
Stream_Read_UINT16(s, quality);
Stream_Seek_UINT16(s); // reserved
fprintf(stderr, "Client requested sound quality: %#0X\n", quality);
}
static BOOL rdpsnd_server_recv_formats(RdpsndServerContext* context, wStream* s)
{
int i, num_known_format = 0;
UINT32 flags, vol, pitch;
UINT16 udpPort, version;
BYTE lastblock;
Stream_Read_UINT32(s, flags); /* dwFlags */
Stream_Read_UINT32(s, vol); /* dwVolume */
Stream_Read_UINT32(s, pitch); /* dwPitch */
Stream_Read_UINT16(s, udpPort); /* wDGramPort */
Stream_Read_UINT16(s, context->num_client_formats); /* wNumberOfFormats */
Stream_Read_UINT8(s, lastblock); /* cLastBlockConfirmed */
Stream_Read_UINT16(s, version); /* wVersion */
Stream_Seek_UINT8(s); /* bPad */
if (context->num_client_formats > 0)
{
context->client_formats = (AUDIO_FORMAT*) malloc(context->num_client_formats * sizeof(AUDIO_FORMAT));
ZeroMemory(context->client_formats, sizeof(AUDIO_FORMAT));
for (i = 0; i < context->num_client_formats; i++)
{
Stream_Read_UINT16(s, context->client_formats[i].wFormatTag);
Stream_Read_UINT16(s, context->client_formats[i].nChannels);
Stream_Read_UINT32(s, context->client_formats[i].nSamplesPerSec);
Stream_Read_UINT32(s, context->client_formats[i].nAvgBytesPerSec);
Stream_Read_UINT16(s, context->client_formats[i].nBlockAlign);
Stream_Read_UINT16(s, context->client_formats[i].wBitsPerSample);
Stream_Read_UINT16(s, context->client_formats[i].cbSize);
if (context->client_formats[i].cbSize > 0)
{
Stream_Seek(s, context->client_formats[i].cbSize);
}
if (context->client_formats[i].wFormatTag != 0)
{
//lets call this a known format
//TODO: actually look through our own list of known formats
num_known_format++;
}
}
}
if (num_known_format == 0)
{
fprintf(stderr, "Client doesn't support any known formats!\n");
return FALSE;
}
return TRUE;
}
static void* rdpsnd_server_thread(void* arg)
{
wStream* s;
DWORD status;
DWORD nCount;
void* buffer;
BYTE msgType;
UINT16 BodySize;
HANDLE events[8];
HANDLE ChannelEvent;
UINT32 BytesReturned;
RdpsndServerContext* context;
context = (RdpsndServerContext*) arg;
buffer = NULL;
BytesReturned = 0;
ChannelEvent = NULL;
s = Stream_New(NULL, 4096);
if (WTSVirtualChannelQuery(context->priv->ChannelHandle, WTSVirtualEventHandle, &buffer, &BytesReturned) == TRUE)
{
if (BytesReturned == sizeof(HANDLE))
CopyMemory(&ChannelEvent, buffer, sizeof(HANDLE));
WTSFreeMemory(buffer);
}
nCount = 0;
events[nCount++] = ChannelEvent;
events[nCount++] = context->priv->StopEvent;
s = Stream_New(NULL, 4096);
rdpsnd_server_send_formats(context, s);
while (1)
{
status = WaitForMultipleObjects(nCount, events, FALSE, INFINITE);
if (WaitForSingleObject(context->priv->StopEvent, 0) == WAIT_OBJECT_0)
{
break;
}
Stream_SetPosition(s, 0);
if (WTSVirtualChannelRead(context->priv->ChannelHandle, 0,
Stream_Buffer(s), Stream_Capacity(s), &BytesReturned))
{
if (BytesReturned)
Stream_Seek(s, BytesReturned);
}
else
{
if (!BytesReturned)
break;
Stream_EnsureRemainingCapacity(s, BytesReturned);
if (WTSVirtualChannelRead(context->priv->ChannelHandle, 0,
Stream_Buffer(s), Stream_Capacity(s), &BytesReturned) == FALSE)
{
break;
}
}
Stream_Read_UINT8(s, msgType);
Stream_Seek_UINT8(s); /* bPad */
Stream_Read_UINT16(s, BodySize);
switch (msgType)
{
case SNDC_WAVECONFIRM:
rdpsnd_server_recv_waveconfirm(context, s);
break;
case SNDC_QUALITYMODE:
rdpsnd_server_recv_quality_mode(context, s);
break;
case SNDC_FORMATS:
if (rdpsnd_server_recv_formats(context, s))
{
IFCALL(context->Activated, context);
}
break;
default:
fprintf(stderr, "UNKOWN MESSAGE TYPE!! (%#0X)\n\n", msgType);
break;
}
}
Stream_Free(s, TRUE);
return NULL;
}
static BOOL rdpsnd_server_initialize(RdpsndServerContext* context)
{
context->Start(context);
return TRUE;
}
static void rdpsnd_server_select_format(RdpsndServerContext* context, int client_format_index)
{
int bs;
int out_buffer_size;
AUDIO_FORMAT *format;
if (client_format_index < 0 || client_format_index >= context->num_client_formats)
{
fprintf(stderr, "rdpsnd_server_select_format: index %d is not correct.\n", client_format_index);
return;
}
context->priv->src_bytes_per_sample = context->src_format.wBitsPerSample / 8;
context->priv->src_bytes_per_frame = context->priv->src_bytes_per_sample * context->src_format.nChannels;
context->selected_client_format = client_format_index;
format = &context->client_formats[client_format_index];
if (format->nSamplesPerSec == 0)
{
fprintf(stderr, "Invalid Client Sound Format!!\n\n");
return;
}
if (format->wFormatTag == WAVE_FORMAT_DVI_ADPCM)
{
bs = (format->nBlockAlign - 4 * format->nChannels) * 4;
context->priv->out_frames = (format->nBlockAlign * 4 * format->nChannels * 2 / bs + 1) * bs / (format->nChannels * 2);
}
else if (format->wFormatTag == WAVE_FORMAT_ADPCM)
{
bs = (format->nBlockAlign - 7 * format->nChannels) * 2 / format->nChannels + 2;
context->priv->out_frames = bs * 4;
}
else
{
context->priv->out_frames = 0x4000 / context->priv->src_bytes_per_frame;
}
if (format->nSamplesPerSec != context->src_format.nSamplesPerSec)
{
context->priv->out_frames = (context->priv->out_frames * context->src_format.nSamplesPerSec + format->nSamplesPerSec - 100) / format->nSamplesPerSec;
}
context->priv->out_pending_frames = 0;
out_buffer_size = context->priv->out_frames * context->priv->src_bytes_per_frame;
if (context->priv->out_buffer_size < out_buffer_size)
{
context->priv->out_buffer = (BYTE*) realloc(context->priv->out_buffer, out_buffer_size);
context->priv->out_buffer_size = out_buffer_size;
}
freerdp_dsp_context_reset_adpcm(context->priv->dsp_context);
}
static BOOL rdpsnd_server_send_audio_pdu(RdpsndServerContext* context)
{
int size;
BYTE* src;
int frames;
int fill_size;
BOOL status;
AUDIO_FORMAT* format;
int tbytes_per_frame;
wStream* s = context->priv->rdpsnd_pdu;
format = &context->client_formats[context->selected_client_format];
tbytes_per_frame = format->nChannels * context->priv->src_bytes_per_sample;
if ((format->nSamplesPerSec == context->src_format.nSamplesPerSec) &&
(format->nChannels == context->src_format.nChannels))
{
src = context->priv->out_buffer;
frames = context->priv->out_pending_frames;
}
else
{
context->priv->dsp_context->resample(context->priv->dsp_context, context->priv->out_buffer,
context->priv->src_bytes_per_sample, context->src_format.nChannels,
context->src_format.nSamplesPerSec, context->priv->out_pending_frames,
format->nChannels, format->nSamplesPerSec);
frames = context->priv->dsp_context->resampled_frames;
src = context->priv->dsp_context->resampled_buffer;
}
size = frames * tbytes_per_frame;
if (format->wFormatTag == WAVE_FORMAT_DVI_ADPCM)
{
context->priv->dsp_context->encode_ima_adpcm(context->priv->dsp_context,
src, size, format->nChannels, format->nBlockAlign);
src = context->priv->dsp_context->adpcm_buffer;
size = context->priv->dsp_context->adpcm_size;
}
else if (format->wFormatTag == WAVE_FORMAT_ADPCM)
{
context->priv->dsp_context->encode_ms_adpcm(context->priv->dsp_context,
src, size, format->nChannels, format->nBlockAlign);
src = context->priv->dsp_context->adpcm_buffer;
size = context->priv->dsp_context->adpcm_size;
}
context->block_no = (context->block_no + 1) % 256;
/* Fill to nBlockAlign for the last audio packet */
fill_size = 0;
if ((format->wFormatTag == WAVE_FORMAT_DVI_ADPCM || format->wFormatTag == WAVE_FORMAT_ADPCM) &&
(context->priv->out_pending_frames < context->priv->out_frames) && ((size % format->nBlockAlign) != 0))
{
fill_size = format->nBlockAlign - (size % format->nBlockAlign);
}
/* WaveInfo PDU */
Stream_SetPosition(s, 0);
Stream_Write_UINT8(s, SNDC_WAVE); /* msgType */
Stream_Write_UINT8(s, 0); /* bPad */
Stream_Write_UINT16(s, size + fill_size + 8); /* BodySize */
Stream_Write_UINT16(s, 0); /* wTimeStamp */
Stream_Write_UINT16(s, context->selected_client_format); /* wFormatNo */
Stream_Write_UINT8(s, context->block_no); /* cBlockNo */
Stream_Seek(s, 3); /* bPad */
Stream_Write(s, src, 4);
WTSVirtualChannelWrite(context->priv->ChannelHandle, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
/* Wave PDU */
Stream_EnsureRemainingCapacity(s, size + fill_size);
Stream_Write_UINT32(s, 0); /* bPad */
Stream_Write(s, src + 4, size - 4);
if (fill_size > 0)
Stream_Zero(s, fill_size);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
context->priv->out_pending_frames = 0;
return status;
}
static BOOL rdpsnd_server_send_samples(RdpsndServerContext* context, const void* buf, int nframes)
{
int cframes;
int cframesize;
if (context->selected_client_format < 0)
return FALSE;
while (nframes > 0)
{
cframes = MIN(nframes, context->priv->out_frames - context->priv->out_pending_frames);
cframesize = cframes * context->priv->src_bytes_per_frame;
CopyMemory(context->priv->out_buffer +
(context->priv->out_pending_frames * context->priv->src_bytes_per_frame), buf, cframesize);
buf = (BYTE*) buf + cframesize;
nframes -= cframes;
context->priv->out_pending_frames += cframes;
if (context->priv->out_pending_frames >= context->priv->out_frames)
{
if (!rdpsnd_server_send_audio_pdu(context))
return FALSE;
}
}
return TRUE;
}
static BOOL rdpsnd_server_set_volume(RdpsndServerContext* context, int left, int right)
{
int pos;
BOOL status;
wStream* s = context->priv->rdpsnd_pdu;
Stream_Write_UINT8(s, SNDC_SETVOLUME);
Stream_Write_UINT8(s, 0);
Stream_Seek_UINT16(s);
Stream_Write_UINT16(s, left);
Stream_Write_UINT16(s, right);
pos = Stream_GetPosition(s);
Stream_SetPosition(s, 2);
Stream_Write_UINT16(s, pos - 4);
Stream_SetPosition(s, pos);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
return status;
}
static BOOL rdpsnd_server_close(RdpsndServerContext* context)
{
int pos;
BOOL status;
wStream* s = context->priv->rdpsnd_pdu;
if (context->selected_client_format < 0)
return FALSE;
if (context->priv->out_pending_frames > 0)
{
if (!rdpsnd_server_send_audio_pdu(context))
return FALSE;
}
context->selected_client_format = -1;
Stream_Write_UINT8(s, SNDC_CLOSE);
Stream_Write_UINT8(s, 0);
Stream_Seek_UINT16(s);
pos = Stream_GetPosition(s);
Stream_SetPosition(s, 2);
Stream_Write_UINT16(s, pos - 4);
Stream_SetPosition(s, pos);
status = WTSVirtualChannelWrite(context->priv->ChannelHandle, Stream_Buffer(s), Stream_GetPosition(s), NULL);
Stream_SetPosition(s, 0);
return status;
}
static int rdpsnd_server_start(RdpsndServerContext* context)
{
context->priv->ChannelHandle = WTSVirtualChannelOpenEx(context->vcm, "rdpsnd", 0);
if (!context->priv->ChannelHandle)
return -1;
context->priv->rdpsnd_pdu = Stream_New(NULL, 4096);
context->priv->StopEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
context->priv->Thread = CreateThread(NULL, 0,
(LPTHREAD_START_ROUTINE) rdpsnd_server_thread, (void*) context, 0, NULL);
return 0;
}
static int rdpsnd_server_stop(RdpsndServerContext* context)
{
SetEvent(context->priv->StopEvent);
WaitForSingleObject(context->priv->Thread, INFINITE);
CloseHandle(context->priv->Thread);
return 0;
}
RdpsndServerContext* rdpsnd_server_context_new(WTSVirtualChannelManager* vcm)
{
RdpsndServerContext* context;
context = (RdpsndServerContext*) malloc(sizeof(RdpsndServerContext));
if (context)
{
ZeroMemory(context, sizeof(RdpsndServerContext));
context->vcm = vcm;
context->Start = rdpsnd_server_start;
context->Stop = rdpsnd_server_stop;
context->selected_client_format = -1;
context->Initialize = rdpsnd_server_initialize;
context->SelectFormat = rdpsnd_server_select_format;
context->SendSamples = rdpsnd_server_send_samples;
context->SetVolume = rdpsnd_server_set_volume;
context->Close = rdpsnd_server_close;
context->priv = (RdpsndServerPrivate*) malloc(sizeof(RdpsndServerPrivate));
if (context->priv)
{
ZeroMemory(context->priv, sizeof(RdpsndServerPrivate));
context->priv->dsp_context = freerdp_dsp_context_new();
}
}
return context;
}
void rdpsnd_server_context_free(RdpsndServerContext* context)
{
SetEvent(context->priv->StopEvent);
WaitForSingleObject(context->priv->Thread, INFINITE);
if (context->priv->ChannelHandle)
WTSVirtualChannelClose(context->priv->ChannelHandle);
if (context->priv->rdpsnd_pdu)
Stream_Free(context->priv->rdpsnd_pdu, TRUE);
if (context->priv->out_buffer)
free(context->priv->out_buffer);
if (context->priv->dsp_context)
freerdp_dsp_context_free(context->priv->dsp_context);
if (context->client_formats)
free(context->client_formats);
free(context);
}

48
channels/rdpsnd/server/rdpsnd_main.h Normal file
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@ -0,0 +1,48 @@
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Server Audio Virtual Channel
*
* Copyright 2012 Vic Lee
* Copyright 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.
*/
#ifndef FREERDP_CHANNEL_SERVER_RDPSND_MAIN_H
#define FREERDP_CHANNEL_SERVER_RDPSND_MAIN_H
#include <winpr/crt.h>
#include <winpr/synch.h>
#include <winpr/thread.h>
#include <freerdp/codec/dsp.h>
#include <freerdp/channels/wtsvc.h>
#include <freerdp/server/rdpsnd.h>
struct _rdpsnd_server_private
{
HANDLE Thread;
HANDLE StopEvent;
void* ChannelHandle;
wStream* rdpsnd_pdu;
BYTE* out_buffer;
int out_buffer_size;
int out_frames;
int out_pending_frames;
UINT32 src_bytes_per_sample;
UINT32 src_bytes_per_frame;
FREERDP_DSP_CONTEXT* dsp_context;
};
#endif /* FREERDP_CHANNEL_SERVER_RDPSND_MAIN_H */

4
channels/server/channels.c
View File

@ -44,6 +44,7 @@
#include <freerdp/server/rdpsnd.h> #include <freerdp/server/rdpsnd.h>
#include <freerdp/server/cliprdr.h> #include <freerdp/server/cliprdr.h>
#include <freerdp/server/rdpdr.h> #include <freerdp/server/rdpdr.h>
#include <freerdp/server/drdynvc.h>
void freerdp_channels_dummy() void freerdp_channels_dummy()
{ {
@ -58,6 +59,9 @@ void freerdp_channels_dummy()
rdpdr_server_context_new(NULL); rdpdr_server_context_new(NULL);
rdpdr_server_context_free(NULL); rdpdr_server_context_free(NULL);
drdynvc_server_context_new(NULL);
drdynvc_server_context_free(NULL);
} }
/** /**

50
include/freerdp/server/drdynvc.h Normal file
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@ -0,0 +1,50 @@
/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Dynamic Virtual Channel Extension
*
* Copyright 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.
*/
#ifndef FREERDP_CHANNEL_SERVER_DRDYNVC_H
#define FREERDP_CHANNEL_SERVER_DRDYNVC_H
#include <freerdp/api.h>
#include <freerdp/types.h>
#include <freerdp/channels/wtsvc.h>
/**
* Server Interface
*/
typedef struct _drdynvc_client_context DrdynvcServerContext;
typedef struct _drdynvc_server_private DrdynvcServerPrivate;
typedef int (*psDrdynvcStart)(DrdynvcServerContext* context);
typedef int (*psDrdynvcStop)(DrdynvcServerContext* context);
struct _drdynvc_client_context
{
WTSVirtualChannelManager* vcm;
psDrdynvcStart Start;
psDrdynvcStop Stop;
DrdynvcServerPrivate* priv;
};
FREERDP_API DrdynvcServerContext* drdynvc_server_context_new(WTSVirtualChannelManager* vcm);
FREERDP_API void drdynvc_server_context_free(DrdynvcServerContext* context);
#endif /* FREERDP_CHANNEL_SERVER_DRDYNVC_H */

26
include/freerdp/server/rdpsnd.h
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@ -23,20 +23,30 @@
#include <freerdp/channels/wtsvc.h> #include <freerdp/channels/wtsvc.h>
#include <freerdp/channels/rdpsnd.h> #include <freerdp/channels/rdpsnd.h>
typedef struct _rdpsnd_server_context RdpsndServerContext;
typedef struct _rdpsnd_server_context rdpsnd_server_context; typedef struct _rdpsnd_server_context rdpsnd_server_context;
typedef struct _rdpsnd_server_private RdpsndServerPrivate;
typedef BOOL (*psRdpsndServerInitialize)(rdpsnd_server_context* context); typedef int (*psRdpsndStart)(RdpsndServerContext* context);
typedef void (*psRdpsndServerSelectFormat)(rdpsnd_server_context* context, int client_format_index); typedef int (*psRdpsndStop)(RdpsndServerContext* context);
typedef BOOL (*psRdpsndServerSendSamples)(rdpsnd_server_context* context, const void* buf, int nframes);
typedef BOOL (*psRdpsndServerSetVolume)(rdpsnd_server_context* context, int left, int right);
typedef BOOL (*psRdpsndServerClose)(rdpsnd_server_context* context);
typedef void (*psRdpsndServerActivated)(rdpsnd_server_context* context); typedef BOOL (*psRdpsndServerInitialize)(RdpsndServerContext* context);
typedef void (*psRdpsndServerSelectFormat)(RdpsndServerContext* context, int client_format_index);
typedef BOOL (*psRdpsndServerSendSamples)(RdpsndServerContext* context, const void* buf, int nframes);
typedef BOOL (*psRdpsndServerSetVolume)(RdpsndServerContext* context, int left, int right);
typedef BOOL (*psRdpsndServerClose)(RdpsndServerContext* context);
typedef void (*psRdpsndServerActivated)(RdpsndServerContext* context);
struct _rdpsnd_server_context struct _rdpsnd_server_context
{ {
WTSVirtualChannelManager* vcm; WTSVirtualChannelManager* vcm;
psRdpsndStart Start;
psRdpsndStop Stop;
RdpsndServerPrivate* priv;
/* Server self-defined pointer. */ /* Server self-defined pointer. */
void* data; void* data;
@ -95,8 +105,8 @@ struct _rdpsnd_server_context
extern "C" { extern "C" {
#endif #endif
FREERDP_API rdpsnd_server_context* rdpsnd_server_context_new(WTSVirtualChannelManager* vcm); FREERDP_API RdpsndServerContext* rdpsnd_server_context_new(WTSVirtualChannelManager* vcm);
FREERDP_API void rdpsnd_server_context_free(rdpsnd_server_context* context); FREERDP_API void rdpsnd_server_context_free(RdpsndServerContext* context);
#ifdef __cplusplus #ifdef __cplusplus
} }

2
server/Mac/mf_interface.h
View File

@ -66,7 +66,7 @@ struct mf_peer_context
//#endif //#endif
//#ifdef CHANNEL_RDPSND_SERVER //#ifdef CHANNEL_RDPSND_SERVER
rdpsnd_server_context* rdpsnd; RdpsndServerContext* rdpsnd;
//#endif //#endif
}; };

2
server/Mac/mf_rdpsnd.c
View File

@ -34,7 +34,7 @@ static const AUDIO_FORMAT supported_audio_formats[] =
{ WAVE_FORMAT_ALAW, 2, 22050, 44100, 2, 8, NULL } { WAVE_FORMAT_ALAW, 2, 22050, 44100, 2, 8, NULL }
}; };
static void mf_peer_rdpsnd_activated(rdpsnd_server_context* context) static void mf_peer_rdpsnd_activated(RdpsndServerContext* context)
{ {
OSStatus status; OSStatus status;
int i, j; int i, j;

2
server/Mac/mf_rdpsnd.h
View File

@ -53,7 +53,7 @@ struct _AQRecorderState
UInt32 bufferByteSize; UInt32 bufferByteSize;
SInt64 currentPacket; SInt64 currentPacket;
bool isRunning; bool isRunning;
rdpsnd_server_context* snd_context; RdpsndServerContext* snd_context;
}; };

2
server/Sample/sf_rdpsnd.c
View File

@ -31,7 +31,7 @@ static const AUDIO_FORMAT test_audio_formats[] =
{ WAVE_FORMAT_ALAW, 2, 22050, 44100, 2, 8, 0, NULL } { WAVE_FORMAT_ALAW, 2, 22050, 44100, 2, 8, 0, NULL }
}; };
static void sf_peer_rdpsnd_activated(rdpsnd_server_context* context) static void sf_peer_rdpsnd_activated(RdpsndServerContext* context)
{ {
printf("RDPSND Activated\n"); printf("RDPSND Activated\n");
} }

2
server/Sample/sfreerdp.h
View File

@ -54,7 +54,7 @@ struct test_peer_context
audin_server_context* audin; audin_server_context* audin;
BOOL audin_open; BOOL audin_open;
UINT32 frame_id; UINT32 frame_id;
rdpsnd_server_context* rdpsnd; RdpsndServerContext* rdpsnd;
}; };
typedef struct test_peer_context testPeerContext; typedef struct test_peer_context testPeerContext;

2
server/Windows/wf_directsound.c
View File

@ -26,7 +26,7 @@ int wf_rdpsnd_set_latest_peer(wfPeerContext* peer)
return 0; return 0;
} }
int wf_directsound_activate(rdpsnd_server_context* context) int wf_directsound_activate(RdpsndServerContext* context)
{ {
HRESULT hr; HRESULT hr;
wfInfo* wfi; wfInfo* wfi;

2
server/Windows/wf_directsound.h
View File

@ -6,7 +6,7 @@
int wf_rdpsnd_set_latest_peer(wfPeerContext* peer); int wf_rdpsnd_set_latest_peer(wfPeerContext* peer);
int wf_directsound_activate(rdpsnd_server_context* context); int wf_directsound_activate(RdpsndServerContext* context);
DWORD WINAPI wf_rdpsnd_directsound_thread(LPVOID lpParam); DWORD WINAPI wf_rdpsnd_directsound_thread(LPVOID lpParam);

2
server/Windows/wf_interface.h
View File

@ -100,7 +100,7 @@ struct wf_peer_context
HANDLE socketSemaphore; HANDLE socketSemaphore;
WTSVirtualChannelManager* vcm; WTSVirtualChannelManager* vcm;
rdpsnd_server_context* rdpsnd; RdpsndServerContext* rdpsnd;
}; };
struct wf_server struct wf_server

2
server/Windows/wf_rdpsnd.c
View File

@ -46,7 +46,7 @@ static const AUDIO_FORMAT supported_audio_formats[] =
{ WAVE_FORMAT_ALAW, 2, 22050, 44100, 2, 8, 0, NULL } { WAVE_FORMAT_ALAW, 2, 22050, 44100, 2, 8, 0, NULL }
}; };
static void wf_peer_rdpsnd_activated(rdpsnd_server_context* context) static void wf_peer_rdpsnd_activated(RdpsndServerContext* context)
{ {
wfInfo* wfi; wfInfo* wfi;
int i, j; int i, j;

2
server/Windows/wf_wasapi.c
View File

@ -34,7 +34,7 @@ int wf_rdpsnd_set_latest_peer(wfPeerContext* peer)
} }
int wf_wasapi_activate(rdpsnd_server_context* context) int wf_wasapi_activate(RdpsndServerContext* context)
{ {
wchar_t * pattern = L"Stereo Mix"; wchar_t * pattern = L"Stereo Mix";

2
server/Windows/wf_wasapi.h
View File

@ -6,7 +6,7 @@
int wf_rdpsnd_set_latest_peer(wfPeerContext* peer); int wf_rdpsnd_set_latest_peer(wfPeerContext* peer);
int wf_wasapi_activate(rdpsnd_server_context* context); int wf_wasapi_activate(RdpsndServerContext* context);
int wf_wasapi_get_device_string(LPWSTR pattern, LPWSTR * deviceStr); int wf_wasapi_get_device_string(LPWSTR pattern, LPWSTR * deviceStr);