1361 lines
34 KiB
C
1361 lines
34 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol Implementation
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* Audio Output Virtual Channel
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*
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* Copyright 2009-2011 Jay Sorg
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* Copyright 2010-2011 Vic Lee
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* Copyright 2012-2013 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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* Copyright 2015 Thincast Technologies GmbH
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* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
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* Copyright 2016 David PHAM-VAN <d.phamvan@inuvika.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifndef _WIN32
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#include <sys/time.h>
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#include <signal.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <winpr/crt.h>
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#include <winpr/wlog.h>
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#include <winpr/stream.h>
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#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>
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#include <freerdp/addin.h>
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#include <freerdp/codec/dsp.h>
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#include "rdpsnd_common.h"
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#include "rdpsnd_main.h"
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struct rdpsnd_plugin
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{
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CHANNEL_DEF channelDef;
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CHANNEL_ENTRY_POINTS_FREERDP_EX channelEntryPoints;
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HANDLE thread;
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wStreamPool* pool;
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wStream* data_in;
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void* InitHandle;
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DWORD OpenHandle;
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wLog* log;
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HANDLE stopEvent;
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BYTE cBlockNo;
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UINT16 wQualityMode;
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UINT16 wCurrentFormatNo;
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AUDIO_FORMAT* ServerFormats;
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UINT16 NumberOfServerFormats;
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AUDIO_FORMAT* ClientFormats;
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UINT16 NumberOfClientFormats;
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BOOL attached;
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BOOL connected;
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BOOL expectingWave;
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BYTE waveData[4];
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UINT16 waveDataSize;
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UINT32 wTimeStamp;
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UINT32 wArrivalTime;
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UINT32 latency;
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BOOL isOpen;
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UINT16 fixedFormat;
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UINT16 fixedChannel;
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UINT32 fixedRate;
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char* subsystem;
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char* device_name;
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/* Device plugin */
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rdpsndDevicePlugin* device;
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rdpContext* rdpcontext;
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wQueue* queue;
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FREERDP_DSP_CONTEXT* dsp_context;
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};
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static void rdpsnd_recv_close_pdu(rdpsndPlugin* rdpsnd);
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static void rdpsnd_virtual_channel_event_terminated(rdpsndPlugin* rdpsnd);
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rdpsnd_virtual_channel_write(rdpsndPlugin* rdpsnd, wStream* s);
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rdpsnd_send_quality_mode_pdu(rdpsndPlugin* rdpsnd)
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{
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wStream* pdu;
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pdu = Stream_New(NULL, 8);
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if (!pdu)
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{
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WLog_ERR(TAG, "Stream_New failed!");
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return CHANNEL_RC_NO_MEMORY;
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}
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Stream_Write_UINT8(pdu, SNDC_QUALITYMODE); /* msgType */
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Stream_Write_UINT8(pdu, 0); /* bPad */
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Stream_Write_UINT16(pdu, 4); /* BodySize */
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Stream_Write_UINT16(pdu, rdpsnd->wQualityMode); /* wQualityMode */
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Stream_Write_UINT16(pdu, 0); /* Reserved */
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "QualityMode: %"PRIu16"", rdpsnd->wQualityMode);
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return rdpsnd_virtual_channel_write(rdpsnd, pdu);
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}
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static void rdpsnd_select_supported_audio_formats(rdpsndPlugin* rdpsnd)
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{
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UINT16 index;
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rdpsnd_free_audio_formats(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
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rdpsnd->NumberOfClientFormats = 0;
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rdpsnd->ClientFormats = NULL;
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if (!rdpsnd->NumberOfServerFormats)
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return;
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rdpsnd->ClientFormats = (AUDIO_FORMAT*) calloc(
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rdpsnd->NumberOfServerFormats,
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sizeof(AUDIO_FORMAT));
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if (!rdpsnd->ClientFormats)
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return;
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for (index = 0; index < rdpsnd->NumberOfServerFormats; index++)
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{
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const AUDIO_FORMAT* serverFormat = &rdpsnd->ServerFormats[index];
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if ((rdpsnd->fixedFormat > 0) &&
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(rdpsnd->fixedFormat != serverFormat->wFormatTag))
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continue;
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if ((rdpsnd->fixedChannel > 0) &&
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(rdpsnd->fixedChannel != serverFormat->nChannels))
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continue;
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if ((rdpsnd->fixedRate > 0) &&
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(rdpsnd->fixedRate != serverFormat->nSamplesPerSec))
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continue;
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if (freerdp_dsp_supports_format(serverFormat, FALSE) ||
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rdpsnd->device->FormatSupported(rdpsnd->device, serverFormat))
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{
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AUDIO_FORMAT* clientFormat = &rdpsnd->ClientFormats[rdpsnd->NumberOfClientFormats++];
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*clientFormat = *serverFormat;
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if (serverFormat->cbSize > 0)
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{
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clientFormat->data = (BYTE*) malloc(serverFormat->cbSize);
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CopyMemory(clientFormat->data, serverFormat->data, serverFormat->cbSize);
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}
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}
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}
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rdpsnd_send_client_audio_formats(rdpsndPlugin* rdpsnd)
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{
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UINT16 index;
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wStream* pdu;
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UINT16 length;
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UINT32 dwVolume;
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UINT16 wNumberOfFormats;
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dwVolume = IFCALLRESULT(0, rdpsnd->device->GetVolume, rdpsnd->device);
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wNumberOfFormats = rdpsnd->NumberOfClientFormats;
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length = 4 + 20;
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for (index = 0; index < wNumberOfFormats; index++)
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length += (18 + rdpsnd->ClientFormats[index].cbSize);
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pdu = Stream_New(NULL, length);
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if (!pdu)
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{
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WLog_ERR(TAG, "Stream_New failed!");
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return CHANNEL_RC_NO_MEMORY;
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}
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Stream_Write_UINT8(pdu, SNDC_FORMATS); /* msgType */
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Stream_Write_UINT8(pdu, 0); /* bPad */
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Stream_Write_UINT16(pdu, length - 4); /* BodySize */
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Stream_Write_UINT32(pdu, TSSNDCAPS_ALIVE | TSSNDCAPS_VOLUME); /* dwFlags */
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Stream_Write_UINT32(pdu, dwVolume); /* dwVolume */
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Stream_Write_UINT32(pdu, 0); /* dwPitch */
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Stream_Write_UINT16(pdu, 0); /* wDGramPort */
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Stream_Write_UINT16(pdu, wNumberOfFormats); /* wNumberOfFormats */
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Stream_Write_UINT8(pdu, 0); /* cLastBlockConfirmed */
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Stream_Write_UINT16(pdu, CHANNEL_VERSION_WIN_MAX); /* wVersion */
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Stream_Write_UINT8(pdu, 0); /* bPad */
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for (index = 0; index < wNumberOfFormats; index++)
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{
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const AUDIO_FORMAT* clientFormat = &rdpsnd->ClientFormats[index];
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Stream_Write_UINT16(pdu, clientFormat->wFormatTag);
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Stream_Write_UINT16(pdu, clientFormat->nChannels);
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Stream_Write_UINT32(pdu, clientFormat->nSamplesPerSec);
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Stream_Write_UINT32(pdu, clientFormat->nAvgBytesPerSec);
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Stream_Write_UINT16(pdu, clientFormat->nBlockAlign);
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Stream_Write_UINT16(pdu, clientFormat->wBitsPerSample);
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Stream_Write_UINT16(pdu, clientFormat->cbSize);
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if (clientFormat->cbSize > 0)
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Stream_Write(pdu, clientFormat->data, clientFormat->cbSize);
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}
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "Client Audio Formats");
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return rdpsnd_virtual_channel_write(rdpsnd, pdu);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rdpsnd_recv_server_audio_formats_pdu(rdpsndPlugin* rdpsnd,
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wStream* s)
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{
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UINT16 index;
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UINT16 wVersion;
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UINT16 wNumberOfFormats;
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UINT ret = ERROR_BAD_LENGTH;
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rdpsnd_free_audio_formats(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
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rdpsnd->NumberOfServerFormats = 0;
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rdpsnd->ServerFormats = NULL;
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if (Stream_GetRemainingLength(s) < 30)
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return ERROR_BAD_LENGTH;
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/* http://msdn.microsoft.com/en-us/library/cc240956.aspx */
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Stream_Seek_UINT32(s); /* dwFlags */
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Stream_Seek_UINT32(s); /* dwVolume */
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Stream_Seek_UINT32(s); /* dwPitch */
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Stream_Seek_UINT16(s); /* wDGramPort */
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Stream_Read_UINT16(s, wNumberOfFormats);
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Stream_Read_UINT8(s, rdpsnd->cBlockNo); /* cLastBlockConfirmed */
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Stream_Read_UINT16(s, wVersion); /* wVersion */
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Stream_Seek_UINT8(s); /* bPad */
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rdpsnd->NumberOfServerFormats = wNumberOfFormats;
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if (Stream_GetRemainingLength(s) / 14 < wNumberOfFormats)
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return ERROR_BAD_LENGTH;
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rdpsnd->ServerFormats = (AUDIO_FORMAT*) calloc(wNumberOfFormats,
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sizeof(AUDIO_FORMAT));
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if (!rdpsnd->ServerFormats)
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return CHANNEL_RC_NO_MEMORY;
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for (index = 0; index < wNumberOfFormats; index++)
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{
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AUDIO_FORMAT* format = &rdpsnd->ServerFormats[index];
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if (Stream_GetRemainingLength(s) < 14)
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goto out_fail;
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Stream_Read_UINT16(s, format->wFormatTag); /* wFormatTag */
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Stream_Read_UINT16(s, format->nChannels); /* nChannels */
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Stream_Read_UINT32(s, format->nSamplesPerSec); /* nSamplesPerSec */
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Stream_Read_UINT32(s, format->nAvgBytesPerSec); /* nAvgBytesPerSec */
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Stream_Read_UINT16(s, format->nBlockAlign); /* nBlockAlign */
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Stream_Read_UINT16(s, format->wBitsPerSample); /* wBitsPerSample */
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Stream_Read_UINT16(s, format->cbSize); /* cbSize */
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if (format->cbSize > 0)
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{
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if (Stream_GetRemainingLength(s) < format->cbSize)
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goto out_fail;
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format->data = (BYTE*) malloc(format->cbSize);
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if (!format->data)
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{
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ret = CHANNEL_RC_NO_MEMORY;
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goto out_fail;
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}
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Stream_Read(s, format->data, format->cbSize);
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}
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}
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rdpsnd_select_supported_audio_formats(rdpsnd);
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "Server Audio Formats");
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ret = rdpsnd_send_client_audio_formats(rdpsnd);
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if (ret == CHANNEL_RC_OK)
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{
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if (wVersion >= CHANNEL_VERSION_WIN_7)
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ret = rdpsnd_send_quality_mode_pdu(rdpsnd);
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}
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return ret;
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out_fail:
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rdpsnd_free_audio_formats(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
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rdpsnd->ServerFormats = NULL;
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rdpsnd->NumberOfServerFormats = 0;
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return ret;
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rdpsnd_send_training_confirm_pdu(rdpsndPlugin* rdpsnd,
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UINT16 wTimeStamp, UINT16 wPackSize)
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{
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wStream* pdu;
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pdu = Stream_New(NULL, 8);
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if (!pdu)
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{
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WLog_ERR(TAG, "Stream_New failed!");
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return CHANNEL_RC_NO_MEMORY;
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}
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Stream_Write_UINT8(pdu, SNDC_TRAINING); /* msgType */
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Stream_Write_UINT8(pdu, 0); /* bPad */
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Stream_Write_UINT16(pdu, 4); /* BodySize */
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Stream_Write_UINT16(pdu, wTimeStamp);
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Stream_Write_UINT16(pdu, wPackSize);
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WLog_Print(rdpsnd->log, WLOG_DEBUG,
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"Training Response: wTimeStamp: %"PRIu16" wPackSize: %"PRIu16"",
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wTimeStamp, wPackSize);
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return rdpsnd_virtual_channel_write(rdpsnd, pdu);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rdpsnd_recv_training_pdu(rdpsndPlugin* rdpsnd, wStream* s)
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{
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UINT16 wTimeStamp;
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UINT16 wPackSize;
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if (Stream_GetRemainingLength(s) < 4)
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return ERROR_BAD_LENGTH;
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Stream_Read_UINT16(s, wTimeStamp);
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Stream_Read_UINT16(s, wPackSize);
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WLog_Print(rdpsnd->log, WLOG_DEBUG,
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"Training Request: wTimeStamp: %"PRIu16" wPackSize: %"PRIu16"",
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wTimeStamp, wPackSize);
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return rdpsnd_send_training_confirm_pdu(rdpsnd, wTimeStamp, wPackSize);
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}
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/**
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* Function description
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*
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* @return 0 on success, otherwise a Win32 error code
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*/
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static UINT rdpsnd_recv_wave_info_pdu(rdpsndPlugin* rdpsnd, wStream* s,
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UINT16 BodySize)
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{
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UINT16 wFormatNo;
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const AUDIO_FORMAT* format;
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if (Stream_GetRemainingLength(s) < 12)
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return ERROR_BAD_LENGTH;
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rdpsnd->wArrivalTime = GetTickCount();
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Stream_Read_UINT16(s, rdpsnd->wTimeStamp);
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Stream_Read_UINT16(s, wFormatNo);
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if (wFormatNo >= rdpsnd->NumberOfClientFormats)
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return ERROR_INVALID_DATA;
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Stream_Read_UINT8(s, rdpsnd->cBlockNo);
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Stream_Seek(s, 3); /* bPad */
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Stream_Read(s, rdpsnd->waveData, 4);
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rdpsnd->waveDataSize = BodySize - 8;
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format = &rdpsnd->ClientFormats[wFormatNo];
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "WaveInfo: cBlockNo: %"PRIu8" wFormatNo: %"PRIu16" [%s]",
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rdpsnd->cBlockNo, wFormatNo, rdpsnd_get_audio_tag_string(format->wFormatTag));
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if (!rdpsnd->isOpen || (wFormatNo != rdpsnd->wCurrentFormatNo))
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{
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BOOL rc;
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AUDIO_FORMAT deviceFormat = *format;
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rdpsnd_recv_close_pdu(rdpsnd);
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rc = IFCALLRESULT(FALSE, rdpsnd->device->FormatSupported, rdpsnd->device, format);
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if (!rc)
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{
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deviceFormat.wFormatTag = WAVE_FORMAT_PCM;
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deviceFormat.wBitsPerSample = 16;
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deviceFormat.cbSize = 0;
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}
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rc = IFCALLRESULT(FALSE, rdpsnd->device->Open, rdpsnd->device, &deviceFormat, rdpsnd->latency);
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if (!rc)
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return CHANNEL_RC_INITIALIZATION_ERROR;
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rc = IFCALLRESULT(FALSE, rdpsnd->device->FormatSupported, rdpsnd->device, format);
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if (!rc)
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{
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if (!freerdp_dsp_context_reset(rdpsnd->dsp_context, format))
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return CHANNEL_RC_INITIALIZATION_ERROR;
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}
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rdpsnd->isOpen = TRUE;
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rdpsnd->wCurrentFormatNo = wFormatNo;
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}
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rdpsnd->expectingWave = TRUE;
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return CHANNEL_RC_OK;
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}
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|
|
/**
|
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* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
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*/
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static UINT rdpsnd_send_wave_confirm_pdu(rdpsndPlugin* rdpsnd,
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UINT16 wTimeStamp, BYTE cConfirmedBlockNo)
|
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{
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wStream* pdu;
|
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pdu = Stream_New(NULL, 8);
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|
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if (!pdu)
|
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{
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WLog_ERR(TAG, "Stream_New failed!");
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return CHANNEL_RC_NO_MEMORY;
|
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}
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|
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Stream_Write_UINT8(pdu, SNDC_WAVECONFIRM);
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Stream_Write_UINT8(pdu, 0);
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Stream_Write_UINT16(pdu, 4);
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Stream_Write_UINT16(pdu, wTimeStamp);
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Stream_Write_UINT8(pdu, cConfirmedBlockNo); /* cConfirmedBlockNo */
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Stream_Write_UINT8(pdu, 0); /* bPad */
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return rdpsnd_virtual_channel_write(rdpsnd, pdu);
|
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}
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|
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static UINT rdpsnd_treat_wave(rdpsndPlugin* rdpsnd, wStream* s, size_t size)
|
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{
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BYTE* data;
|
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AUDIO_FORMAT* format;
|
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DWORD end;
|
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DWORD diffMS;
|
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UINT latency = 0;
|
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|
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if (Stream_GetRemainingLength(s) < size)
|
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return ERROR_BAD_LENGTH;
|
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|
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data = Stream_Pointer(s);
|
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format = &rdpsnd->ClientFormats[rdpsnd->wCurrentFormatNo];
|
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "Wave: cBlockNo: %"PRIu8" wTimeStamp: %"PRIu16"",
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rdpsnd->cBlockNo, rdpsnd->wTimeStamp);
|
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|
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if (rdpsnd->device && rdpsnd->attached)
|
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{
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UINT status = CHANNEL_RC_OK;
|
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wStream* pcmData = StreamPool_Take(rdpsnd->pool, 4096);
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|
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if (rdpsnd->device->FormatSupported(rdpsnd->device, format))
|
|
latency = IFCALLRESULT(0, rdpsnd->device->Play, rdpsnd->device, data, size);
|
|
else if (freerdp_dsp_decode(rdpsnd->dsp_context, format, data, size, pcmData))
|
|
{
|
|
Stream_SealLength(pcmData);
|
|
latency = IFCALLRESULT(0, rdpsnd->device->Play, rdpsnd->device, Stream_Buffer(pcmData),
|
|
Stream_Length(pcmData));
|
|
}
|
|
else
|
|
status = ERROR_INTERNAL_ERROR;
|
|
|
|
StreamPool_Return(rdpsnd->pool, pcmData);
|
|
|
|
if (status != CHANNEL_RC_OK)
|
|
return status;
|
|
}
|
|
|
|
end = GetTickCount();
|
|
diffMS = end - rdpsnd->wArrivalTime + latency;
|
|
return rdpsnd_send_wave_confirm_pdu(rdpsnd, rdpsnd->wTimeStamp + diffMS, rdpsnd->cBlockNo);
|
|
}
|
|
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_recv_wave_pdu(rdpsndPlugin* rdpsnd, wStream* s)
|
|
{
|
|
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);
|
|
return rdpsnd_treat_wave(rdpsnd, s, rdpsnd->waveDataSize);
|
|
}
|
|
|
|
static UINT rdpsnd_recv_wave2_pdu(rdpsndPlugin* rdpsnd, wStream* s, UINT16 BodySize)
|
|
{
|
|
UINT16 wFormatNo;
|
|
AUDIO_FORMAT* format;
|
|
UINT32 dwAudioTimeStamp;
|
|
|
|
if (Stream_GetRemainingLength(s) < 12)
|
|
return ERROR_BAD_LENGTH;
|
|
|
|
Stream_Read_UINT16(s, rdpsnd->wTimeStamp);
|
|
Stream_Read_UINT16(s, wFormatNo);
|
|
Stream_Read_UINT8(s, rdpsnd->cBlockNo);
|
|
Stream_Seek(s, 3); /* bPad */
|
|
Stream_Read_UINT32(s, dwAudioTimeStamp);
|
|
rdpsnd->waveDataSize = BodySize - 12;
|
|
format = &rdpsnd->ClientFormats[wFormatNo];
|
|
rdpsnd->wArrivalTime = GetTickCount();
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Wave2PDU: cBlockNo: %"PRIu8" wFormatNo: %"PRIu16"",
|
|
rdpsnd->cBlockNo, wFormatNo);
|
|
|
|
if (!rdpsnd->isOpen || (wFormatNo != rdpsnd->wCurrentFormatNo))
|
|
{
|
|
BOOL rc;
|
|
AUDIO_FORMAT deviceFormat = *format;
|
|
rdpsnd_recv_close_pdu(rdpsnd);
|
|
rc = IFCALLRESULT(FALSE, rdpsnd->device->FormatSupported, rdpsnd->device, format);
|
|
|
|
if (!rc)
|
|
{
|
|
deviceFormat.wFormatTag = WAVE_FORMAT_PCM;
|
|
deviceFormat.wBitsPerSample = 16;
|
|
deviceFormat.cbSize = 0;
|
|
}
|
|
|
|
rc = IFCALLRESULT(FALSE, rdpsnd->device->Open, rdpsnd->device, &deviceFormat, rdpsnd->latency);
|
|
|
|
if (!rc)
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
rc = IFCALLRESULT(FALSE, rdpsnd->device->FormatSupported, rdpsnd->device, format);
|
|
|
|
if (!rc)
|
|
{
|
|
if (!freerdp_dsp_context_reset(rdpsnd->dsp_context, format))
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
}
|
|
|
|
rdpsnd->isOpen = TRUE;
|
|
rdpsnd->wCurrentFormatNo = wFormatNo;
|
|
}
|
|
|
|
return rdpsnd_treat_wave(rdpsnd, s, rdpsnd->waveDataSize);
|
|
}
|
|
|
|
static void rdpsnd_recv_close_pdu(rdpsndPlugin* rdpsnd)
|
|
{
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Close");
|
|
|
|
if (rdpsnd->isOpen)
|
|
IFCALL(rdpsnd->device->Close, rdpsnd->device);
|
|
|
|
rdpsnd->isOpen = FALSE;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_recv_volume_pdu(rdpsndPlugin* rdpsnd, wStream* s)
|
|
{
|
|
BOOL error;
|
|
UINT32 dwVolume;
|
|
|
|
if (Stream_GetRemainingLength(s) < 4)
|
|
return ERROR_BAD_LENGTH;
|
|
|
|
Stream_Read_UINT32(s, dwVolume);
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "Volume: 0x%08"PRIX32"", dwVolume);
|
|
error = IFCALLRESULT(FALSE, rdpsnd->device->SetVolume, rdpsnd->device, dwVolume);
|
|
|
|
if (error)
|
|
{
|
|
WLog_ERR(TAG, "error setting volume");
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_recv_pdu(rdpsndPlugin* rdpsnd, wStream* s)
|
|
{
|
|
BYTE msgType;
|
|
UINT16 BodySize;
|
|
UINT status = CHANNEL_RC_OK;
|
|
|
|
if (rdpsnd->expectingWave)
|
|
{
|
|
status = rdpsnd_recv_wave_pdu(rdpsnd, s);
|
|
goto out;
|
|
}
|
|
|
|
if (Stream_GetRemainingLength(s) < 4)
|
|
{
|
|
status = ERROR_BAD_LENGTH;
|
|
goto out;
|
|
}
|
|
|
|
Stream_Read_UINT8(s, msgType); /* msgType */
|
|
Stream_Seek_UINT8(s); /* bPad */
|
|
Stream_Read_UINT16(s, BodySize);
|
|
|
|
switch (msgType)
|
|
{
|
|
case SNDC_FORMATS:
|
|
status = rdpsnd_recv_server_audio_formats_pdu(rdpsnd, s);
|
|
break;
|
|
|
|
case SNDC_TRAINING:
|
|
status = rdpsnd_recv_training_pdu(rdpsnd, s);
|
|
break;
|
|
|
|
case SNDC_WAVE:
|
|
status = rdpsnd_recv_wave_info_pdu(rdpsnd, s, BodySize);
|
|
break;
|
|
|
|
case SNDC_CLOSE:
|
|
rdpsnd_recv_close_pdu(rdpsnd);
|
|
break;
|
|
|
|
case SNDC_SETVOLUME:
|
|
status = rdpsnd_recv_volume_pdu(rdpsnd, s);
|
|
break;
|
|
|
|
case SNDC_WAVE2:
|
|
status = rdpsnd_recv_wave2_pdu(rdpsnd, s, BodySize);
|
|
break;
|
|
|
|
default:
|
|
WLog_ERR(TAG, "unknown msgType %"PRIu8"", msgType);
|
|
break;
|
|
}
|
|
|
|
out:
|
|
StreamPool_Return(rdpsnd->pool, s);
|
|
return status;
|
|
}
|
|
|
|
static void rdpsnd_register_device_plugin(rdpsndPlugin* rdpsnd,
|
|
rdpsndDevicePlugin* device)
|
|
{
|
|
if (rdpsnd->device)
|
|
{
|
|
WLog_ERR(TAG, "existing device, abort.");
|
|
return;
|
|
}
|
|
|
|
rdpsnd->device = device;
|
|
device->rdpsnd = rdpsnd;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_load_device_plugin(rdpsndPlugin* rdpsnd, const char* name,
|
|
ADDIN_ARGV* args)
|
|
{
|
|
PFREERDP_RDPSND_DEVICE_ENTRY entry;
|
|
FREERDP_RDPSND_DEVICE_ENTRY_POINTS entryPoints;
|
|
UINT error;
|
|
entry = (PFREERDP_RDPSND_DEVICE_ENTRY)
|
|
freerdp_load_channel_addin_entry("rdpsnd", (LPSTR) name, NULL, 0);
|
|
|
|
if (!entry)
|
|
return ERROR_INTERNAL_ERROR;
|
|
|
|
entryPoints.rdpsnd = rdpsnd;
|
|
entryPoints.pRegisterRdpsndDevice = rdpsnd_register_device_plugin;
|
|
entryPoints.args = args;
|
|
|
|
if ((error = entry(&entryPoints)))
|
|
WLog_ERR(TAG, "%s entry returns error %"PRIu32"", name, error);
|
|
|
|
WLog_INFO(TAG, "Loaded %s backend for rdpsnd", name);
|
|
return error;
|
|
}
|
|
|
|
static BOOL rdpsnd_set_subsystem(rdpsndPlugin* rdpsnd, const char* subsystem)
|
|
{
|
|
free(rdpsnd->subsystem);
|
|
rdpsnd->subsystem = _strdup(subsystem);
|
|
return (rdpsnd->subsystem != NULL);
|
|
}
|
|
|
|
BOOL rdpsnd_set_device_name(rdpsndPlugin* rdpsnd, const char* device_name)
|
|
{
|
|
free(rdpsnd->device_name);
|
|
rdpsnd->device_name = _strdup(device_name);
|
|
return (rdpsnd->device_name != NULL);
|
|
}
|
|
|
|
static 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 }
|
|
};
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT 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 */
|
|
|
|
if (args->argc > 1)
|
|
{
|
|
flags = COMMAND_LINE_SIGIL_NONE | COMMAND_LINE_SEPARATOR_COLON;
|
|
status = CommandLineParseArgumentsA(args->argc, args->argv,
|
|
rdpsnd_args, flags, rdpsnd, NULL, NULL);
|
|
|
|
if (status < 0)
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
arg = rdpsnd_args;
|
|
errno = 0;
|
|
|
|
do
|
|
{
|
|
if (!(arg->Flags & COMMAND_LINE_VALUE_PRESENT))
|
|
continue;
|
|
|
|
CommandLineSwitchStart(arg)
|
|
CommandLineSwitchCase(arg, "sys")
|
|
{
|
|
if (!rdpsnd_set_subsystem(rdpsnd, arg->Value))
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
CommandLineSwitchCase(arg, "dev")
|
|
{
|
|
if (!rdpsnd_set_device_name(rdpsnd, arg->Value))
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
CommandLineSwitchCase(arg, "format")
|
|
{
|
|
unsigned long val = strtoul(arg->Value, NULL, 0);
|
|
|
|
if ((errno != 0) || (val > UINT16_MAX))
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
rdpsnd->fixedFormat = val;
|
|
}
|
|
CommandLineSwitchCase(arg, "rate")
|
|
{
|
|
unsigned long val = strtoul(arg->Value, NULL, 0);
|
|
|
|
if ((errno != 0) || (val > UINT32_MAX))
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
rdpsnd->fixedRate = val;
|
|
}
|
|
CommandLineSwitchCase(arg, "channel")
|
|
{
|
|
unsigned long val = strtoul(arg->Value, NULL, 0);
|
|
|
|
if ((errno != 0) || (val > UINT16_MAX))
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
rdpsnd->fixedChannel = val;
|
|
}
|
|
CommandLineSwitchCase(arg, "latency")
|
|
{
|
|
unsigned long val = strtoul(arg->Value, NULL, 0);
|
|
|
|
if ((errno != 0) || (val > INT32_MAX))
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
rdpsnd->latency = val;
|
|
}
|
|
CommandLineSwitchCase(arg, "quality")
|
|
{
|
|
long 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 = strtol(arg->Value, NULL, 0);
|
|
|
|
if (errno != 0)
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
}
|
|
|
|
if ((wQualityMode < 0) || (wQualityMode > 2))
|
|
wQualityMode = DYNAMIC_QUALITY;
|
|
|
|
rdpsnd->wQualityMode = (UINT16) wQualityMode;
|
|
}
|
|
CommandLineSwitchDefault(arg)
|
|
{
|
|
}
|
|
CommandLineSwitchEnd(arg)
|
|
}
|
|
while ((arg = CommandLineFindNextArgumentA(arg)) != NULL);
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_process_connect(rdpsndPlugin* rdpsnd)
|
|
{
|
|
const struct
|
|
{
|
|
const char* subsystem;
|
|
const char* device;
|
|
}
|
|
backends[] =
|
|
{
|
|
#if defined(WITH_IOSAUDIO)
|
|
{"ios", ""},
|
|
#endif
|
|
#if defined(WITH_OPENSLES)
|
|
{"opensles", ""},
|
|
#endif
|
|
#if defined(WITH_PULSE)
|
|
{"pulse", ""},
|
|
#endif
|
|
#if defined(WITH_ALSA)
|
|
{"alsa", "default"},
|
|
#endif
|
|
#if defined(WITH_OSS)
|
|
{"oss", ""},
|
|
#endif
|
|
#if defined(WITH_MACAUDIO)
|
|
{"mac", "default"},
|
|
#endif
|
|
#if defined(WITH_WINMM)
|
|
{ "winmm", ""},
|
|
#endif
|
|
{ "fake", "" }
|
|
};
|
|
ADDIN_ARGV* args;
|
|
UINT status = ERROR_INTERNAL_ERROR;
|
|
rdpsnd->latency = 0;
|
|
args = (ADDIN_ARGV*) rdpsnd->channelEntryPoints.pExtendedData;
|
|
|
|
if (args)
|
|
{
|
|
status = rdpsnd_process_addin_args(rdpsnd, args);
|
|
|
|
if (status != CHANNEL_RC_OK)
|
|
return status;
|
|
}
|
|
|
|
if (rdpsnd->subsystem)
|
|
{
|
|
if ((status = rdpsnd_load_device_plugin(rdpsnd, rdpsnd->subsystem, args)))
|
|
{
|
|
WLog_ERR(TAG, "unable to load the %s subsystem plugin because of error %"PRIu32"",
|
|
rdpsnd->subsystem, status);
|
|
return status;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
size_t x;
|
|
|
|
for (x = 0; x < ARRAYSIZE(backends); x++)
|
|
{
|
|
const char* subsystem_name = backends[x].subsystem;
|
|
const char* device_name = backends[x].device;
|
|
|
|
if ((status = rdpsnd_load_device_plugin(rdpsnd, subsystem_name, args)))
|
|
WLog_ERR(TAG, "unable to load the %s subsystem plugin because of error %"PRIu32"",
|
|
subsystem_name, status);
|
|
|
|
if (!rdpsnd->device)
|
|
continue;
|
|
|
|
if (!rdpsnd_set_subsystem(rdpsnd, subsystem_name) ||
|
|
!rdpsnd_set_device_name(rdpsnd, device_name))
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
|
|
break;
|
|
}
|
|
|
|
if (!rdpsnd->device || status)
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static void rdpsnd_process_disconnect(rdpsndPlugin* rdpsnd)
|
|
{
|
|
rdpsnd_recv_close_pdu(rdpsnd);
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
UINT rdpsnd_virtual_channel_write(rdpsndPlugin* rdpsnd, wStream* s)
|
|
{
|
|
UINT status = CHANNEL_RC_BAD_INIT_HANDLE;
|
|
|
|
if (rdpsnd)
|
|
{
|
|
status = rdpsnd->channelEntryPoints.pVirtualChannelWriteEx(rdpsnd->InitHandle, rdpsnd->OpenHandle,
|
|
Stream_Buffer(s), (UINT32) Stream_GetPosition(s), s);
|
|
}
|
|
|
|
if (status != CHANNEL_RC_OK)
|
|
{
|
|
Stream_Free(s, TRUE);
|
|
WLog_ERR(TAG, "pVirtualChannelWriteEx failed with %s [%08"PRIX32"]",
|
|
WTSErrorToString(status), status);
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_virtual_channel_event_data_received(rdpsndPlugin* plugin,
|
|
void* pData, UINT32 dataLength, UINT32 totalLength, UINT32 dataFlags)
|
|
{
|
|
if ((dataFlags & CHANNEL_FLAG_SUSPEND) || (dataFlags & CHANNEL_FLAG_RESUME))
|
|
return CHANNEL_RC_OK;
|
|
|
|
if (dataFlags & CHANNEL_FLAG_FIRST)
|
|
{
|
|
if (!plugin->data_in)
|
|
plugin->data_in = StreamPool_Take(plugin->pool, totalLength);
|
|
|
|
Stream_SetPosition(plugin->data_in, 0);
|
|
}
|
|
|
|
if (!Stream_EnsureRemainingCapacity(plugin->data_in, dataLength))
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
|
|
Stream_Write(plugin->data_in, pData, dataLength);
|
|
|
|
if (dataFlags & CHANNEL_FLAG_LAST)
|
|
{
|
|
Stream_SealLength(plugin->data_in);
|
|
Stream_SetPosition(plugin->data_in, 0);
|
|
|
|
if (!Queue_Enqueue(plugin->queue, plugin->data_in))
|
|
{
|
|
WLog_ERR(TAG, "Queue_Enqueue failed!");
|
|
return ERROR_INTERNAL_ERROR;
|
|
}
|
|
|
|
plugin->data_in = NULL;
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static VOID VCAPITYPE rdpsnd_virtual_channel_open_event_ex(LPVOID lpUserParam, DWORD openHandle,
|
|
UINT event,
|
|
LPVOID pData, UINT32 dataLength, UINT32 totalLength, UINT32 dataFlags)
|
|
{
|
|
UINT error = CHANNEL_RC_OK;
|
|
rdpsndPlugin* rdpsnd = (rdpsndPlugin*) lpUserParam;
|
|
|
|
if (!rdpsnd || (rdpsnd->OpenHandle != openHandle))
|
|
{
|
|
WLog_ERR(TAG, "error no match");
|
|
return;
|
|
}
|
|
|
|
switch (event)
|
|
{
|
|
case CHANNEL_EVENT_DATA_RECEIVED:
|
|
if ((error = rdpsnd_virtual_channel_event_data_received(rdpsnd, pData,
|
|
dataLength, totalLength, dataFlags)))
|
|
WLog_ERR(TAG,
|
|
"rdpsnd_virtual_channel_event_data_received failed with error %"PRIu32"", error);
|
|
|
|
break;
|
|
|
|
case CHANNEL_EVENT_WRITE_COMPLETE:
|
|
break;
|
|
|
|
case CHANNEL_EVENT_USER:
|
|
break;
|
|
}
|
|
|
|
if (error && rdpsnd->rdpcontext)
|
|
setChannelError(rdpsnd->rdpcontext, error,
|
|
"rdpsnd_virtual_channel_open_event_ex reported an error");
|
|
}
|
|
|
|
static DWORD WINAPI rdpsnd_virtual_channel_client_thread(LPVOID arg)
|
|
{
|
|
BOOL running = TRUE;
|
|
rdpsndPlugin* rdpsnd = (rdpsndPlugin*) arg;
|
|
DWORD error = CHANNEL_RC_OK;
|
|
HANDLE events[2];
|
|
|
|
if ((error = rdpsnd_process_connect(rdpsnd)))
|
|
{
|
|
WLog_ERR(TAG, "error connecting sound channel");
|
|
goto out;
|
|
}
|
|
|
|
events[1] = rdpsnd->stopEvent;
|
|
events[0] = Queue_Event(rdpsnd->queue);
|
|
|
|
do
|
|
{
|
|
const DWORD status = WaitForMultipleObjects(ARRAYSIZE(events), events, FALSE, INFINITE);
|
|
|
|
switch (status)
|
|
{
|
|
case WAIT_OBJECT_0:
|
|
{
|
|
wStream* s = Queue_Dequeue(rdpsnd->queue);
|
|
error = rdpsnd_recv_pdu(rdpsnd, s);
|
|
}
|
|
break;
|
|
|
|
case WAIT_OBJECT_0 + 1:
|
|
running = FALSE;
|
|
break;
|
|
|
|
default:
|
|
error = status;
|
|
break;
|
|
}
|
|
}
|
|
while ((error == CHANNEL_RC_OK) && running);
|
|
|
|
out:
|
|
|
|
if (error && rdpsnd->rdpcontext)
|
|
setChannelError(rdpsnd->rdpcontext, error,
|
|
"rdpsnd_virtual_channel_client_thread reported an error");
|
|
|
|
rdpsnd_process_disconnect(rdpsnd);
|
|
ExitThread((DWORD)error);
|
|
return error;
|
|
}
|
|
|
|
/* Called during cleanup.
|
|
* All streams still in the queue have been removed
|
|
* from the streampool and nead cleanup. */
|
|
static void rdpsnd_queue_free(void* data)
|
|
{
|
|
wStream* s = (wStream*)data;
|
|
Stream_Free(s, TRUE);
|
|
}
|
|
|
|
static UINT rdpsnd_virtual_channel_event_initialized(rdpsndPlugin* rdpsnd,
|
|
LPVOID pData, UINT32 dataLength)
|
|
{
|
|
rdpsnd->stopEvent = CreateEventA(NULL, TRUE, FALSE, "rdpsnd->stopEvent");
|
|
|
|
if (!rdpsnd->stopEvent)
|
|
goto fail;
|
|
|
|
return CHANNEL_RC_OK;
|
|
fail:
|
|
return ERROR_INTERNAL_ERROR;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_virtual_channel_event_connected(rdpsndPlugin* rdpsnd,
|
|
LPVOID pData, UINT32 dataLength)
|
|
{
|
|
UINT32 status;
|
|
status = rdpsnd->channelEntryPoints.pVirtualChannelOpenEx(rdpsnd->InitHandle,
|
|
&rdpsnd->OpenHandle, rdpsnd->channelDef.name,
|
|
rdpsnd_virtual_channel_open_event_ex);
|
|
|
|
if (status != CHANNEL_RC_OK)
|
|
{
|
|
WLog_ERR(TAG, "pVirtualChannelOpenEx failed with %s [%08"PRIX32"]",
|
|
WTSErrorToString(status), status);
|
|
return status;
|
|
}
|
|
|
|
rdpsnd->dsp_context = freerdp_dsp_context_new(FALSE);
|
|
|
|
if (!rdpsnd->dsp_context)
|
|
goto fail;
|
|
|
|
rdpsnd->queue = Queue_New(TRUE, 32, 2);
|
|
|
|
if (!rdpsnd->queue)
|
|
goto fail;
|
|
|
|
rdpsnd->queue->object.fnObjectFree = rdpsnd_queue_free;
|
|
rdpsnd->pool = StreamPool_New(TRUE, 4096);
|
|
|
|
if (!rdpsnd->pool)
|
|
goto fail;
|
|
|
|
ResetEvent(rdpsnd->stopEvent);
|
|
rdpsnd->thread = CreateThread(NULL, 0,
|
|
rdpsnd_virtual_channel_client_thread, (void*) rdpsnd,
|
|
0, NULL);
|
|
|
|
if (!rdpsnd->thread)
|
|
goto fail;
|
|
|
|
return CHANNEL_RC_OK;
|
|
fail:
|
|
freerdp_dsp_context_free(rdpsnd->dsp_context);
|
|
StreamPool_Free(rdpsnd->pool);
|
|
Queue_Free(rdpsnd->queue);
|
|
|
|
if (rdpsnd->stopEvent)
|
|
CloseHandle(rdpsnd->stopEvent);
|
|
|
|
if (rdpsnd->thread)
|
|
CloseHandle(rdpsnd->thread);
|
|
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_virtual_channel_event_disconnected(rdpsndPlugin* rdpsnd)
|
|
{
|
|
UINT error;
|
|
|
|
if (rdpsnd->OpenHandle == 0)
|
|
return CHANNEL_RC_OK;
|
|
|
|
SetEvent(rdpsnd->stopEvent);
|
|
|
|
if (WaitForSingleObject(rdpsnd->thread, INFINITE) == WAIT_FAILED)
|
|
{
|
|
error = GetLastError();
|
|
WLog_ERR(TAG, "WaitForSingleObject failed with error %"PRIu32"!", error);
|
|
return error;
|
|
}
|
|
|
|
CloseHandle(rdpsnd->thread);
|
|
error = rdpsnd->channelEntryPoints.pVirtualChannelCloseEx(rdpsnd->InitHandle, rdpsnd->OpenHandle);
|
|
|
|
if (CHANNEL_RC_OK != error)
|
|
{
|
|
WLog_ERR(TAG, "pVirtualChannelCloseEx failed with %s [%08"PRIX32"]",
|
|
WTSErrorToString(error), error);
|
|
return error;
|
|
}
|
|
|
|
rdpsnd->OpenHandle = 0;
|
|
freerdp_dsp_context_free(rdpsnd->dsp_context);
|
|
StreamPool_Return(rdpsnd->pool, rdpsnd->data_in);
|
|
StreamPool_Free(rdpsnd->pool);
|
|
Queue_Free(rdpsnd->queue);
|
|
rdpsnd_free_audio_formats(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
|
|
rdpsnd->NumberOfClientFormats = 0;
|
|
rdpsnd->ClientFormats = NULL;
|
|
rdpsnd_free_audio_formats(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
|
|
rdpsnd->NumberOfServerFormats = 0;
|
|
rdpsnd->ServerFormats = NULL;
|
|
|
|
if (rdpsnd->device)
|
|
{
|
|
IFCALL(rdpsnd->device->Free, rdpsnd->device);
|
|
rdpsnd->device = NULL;
|
|
}
|
|
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static void rdpsnd_virtual_channel_event_terminated(rdpsndPlugin* rdpsnd)
|
|
{
|
|
if (rdpsnd)
|
|
{
|
|
free(rdpsnd->subsystem);
|
|
free(rdpsnd->device_name);
|
|
CloseHandle(rdpsnd->stopEvent);
|
|
rdpsnd->InitHandle = 0;
|
|
}
|
|
|
|
free(rdpsnd);
|
|
}
|
|
|
|
static VOID VCAPITYPE rdpsnd_virtual_channel_init_event_ex(LPVOID lpUserParam, LPVOID pInitHandle,
|
|
UINT event, LPVOID pData, UINT dataLength)
|
|
{
|
|
UINT error = CHANNEL_RC_OK;
|
|
rdpsndPlugin* plugin = (rdpsndPlugin*) lpUserParam;
|
|
|
|
if (!plugin || (plugin->InitHandle != pInitHandle))
|
|
{
|
|
WLog_ERR(TAG, "error no match");
|
|
return;
|
|
}
|
|
|
|
switch (event)
|
|
{
|
|
case CHANNEL_EVENT_INITIALIZED:
|
|
if ((error = rdpsnd_virtual_channel_event_initialized(plugin, pData, dataLength)))
|
|
WLog_ERR(TAG, "rdpsnd_virtual_channel_event_initialized failed with error %"PRIu32"!",
|
|
error);
|
|
|
|
break;
|
|
|
|
case CHANNEL_EVENT_CONNECTED:
|
|
if ((error = rdpsnd_virtual_channel_event_connected(plugin, pData, dataLength)))
|
|
WLog_ERR(TAG, "rdpsnd_virtual_channel_event_connected failed with error %"PRIu32"!",
|
|
error);
|
|
|
|
break;
|
|
|
|
case CHANNEL_EVENT_DISCONNECTED:
|
|
if ((error = rdpsnd_virtual_channel_event_disconnected(plugin)))
|
|
WLog_ERR(TAG,
|
|
"rdpsnd_virtual_channel_event_disconnected failed with error %"PRIu32"!", error);
|
|
|
|
break;
|
|
|
|
case CHANNEL_EVENT_TERMINATED:
|
|
rdpsnd_virtual_channel_event_terminated(plugin);
|
|
break;
|
|
|
|
case CHANNEL_EVENT_ATTACHED:
|
|
plugin->attached = TRUE;
|
|
break;
|
|
|
|
case CHANNEL_EVENT_DETACHED:
|
|
plugin->attached = FALSE;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (error && plugin && plugin->rdpcontext)
|
|
setChannelError(plugin->rdpcontext, error,
|
|
"rdpsnd_virtual_channel_init_event reported an error");
|
|
}
|
|
|
|
/* rdpsnd is always built-in */
|
|
#define VirtualChannelEntryEx rdpsnd_VirtualChannelEntryEx
|
|
|
|
BOOL VCAPITYPE VirtualChannelEntryEx(PCHANNEL_ENTRY_POINTS pEntryPoints, PVOID pInitHandle)
|
|
{
|
|
UINT rc;
|
|
rdpsndPlugin* rdpsnd;
|
|
CHANNEL_ENTRY_POINTS_FREERDP_EX* pEntryPointsEx;
|
|
|
|
if (!pEntryPoints)
|
|
return FALSE;
|
|
|
|
rdpsnd = (rdpsndPlugin*) calloc(1, sizeof(rdpsndPlugin));
|
|
|
|
if (!rdpsnd)
|
|
return FALSE;
|
|
|
|
rdpsnd->attached = TRUE;
|
|
rdpsnd->channelDef.options =
|
|
CHANNEL_OPTION_INITIALIZED |
|
|
CHANNEL_OPTION_ENCRYPT_RDP;
|
|
strcpy(rdpsnd->channelDef.name, "rdpsnd");
|
|
pEntryPointsEx = (CHANNEL_ENTRY_POINTS_FREERDP_EX*) pEntryPoints;
|
|
|
|
if ((pEntryPointsEx->cbSize >= sizeof(CHANNEL_ENTRY_POINTS_FREERDP_EX)) &&
|
|
(pEntryPointsEx->MagicNumber == FREERDP_CHANNEL_MAGIC_NUMBER))
|
|
{
|
|
rdpsnd->rdpcontext = pEntryPointsEx->context;
|
|
}
|
|
|
|
rdpsnd->log = WLog_Get("com.freerdp.channels.rdpsnd.client");
|
|
CopyMemory(&(rdpsnd->channelEntryPoints), pEntryPoints,
|
|
sizeof(CHANNEL_ENTRY_POINTS_FREERDP_EX));
|
|
rdpsnd->InitHandle = pInitHandle;
|
|
rc = rdpsnd->channelEntryPoints.pVirtualChannelInitEx(rdpsnd, NULL, pInitHandle,
|
|
&rdpsnd->channelDef, 1, VIRTUAL_CHANNEL_VERSION_WIN2000,
|
|
rdpsnd_virtual_channel_init_event_ex);
|
|
|
|
if (CHANNEL_RC_OK != rc)
|
|
{
|
|
WLog_ERR(TAG, "pVirtualChannelInitEx failed with %s [%08"PRIX32"]",
|
|
WTSErrorToString(rc), rc);
|
|
free(rdpsnd);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|