1516 lines
40 KiB
C
1516 lines
40 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_CHANNEL_CALLBACK
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{
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IWTSVirtualChannelCallback iface;
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IWTSPlugin* plugin;
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IWTSVirtualChannelManager* channel_mgr;
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IWTSVirtualChannel* channel;
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};
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typedef struct _RDPSND_CHANNEL_CALLBACK RDPSND_CHANNEL_CALLBACK;
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struct _RDPSND_LISTENER_CALLBACK
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{
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IWTSListenerCallback iface;
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IWTSPlugin* plugin;
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IWTSVirtualChannelManager* channel_mgr;
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RDPSND_CHANNEL_CALLBACK* channel_callback;
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};
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typedef struct _RDPSND_LISTENER_CALLBACK RDPSND_LISTENER_CALLBACK;
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struct rdpsnd_plugin
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{
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IWTSPlugin iface;
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IWTSListener* listener;
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RDPSND_LISTENER_CALLBACK* listener_callback;
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CHANNEL_DEF channelDef;
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CHANNEL_ENTRY_POINTS_FREERDP_EX channelEntryPoints;
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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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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 dynamic;
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BOOL expectingWave;
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BYTE waveData[4];
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UINT16 waveDataSize;
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UINT16 wTimeStamp;
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UINT64 wArrivalTime;
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UINT32 latency;
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BOOL isOpen;
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AUDIO_FORMAT* fixed_format;
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UINT32 startPlayTime;
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size_t totalPlaySize;
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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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FREERDP_DSP_CONTEXT* dsp_context;
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};
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static const char* rdpsnd_is_dyn_str(BOOL dynamic)
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{
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if (dynamic)
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return "[dynamic]";
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return "[static]";
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}
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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, "%s Stream_New failed!", rdpsnd_is_dyn_str(rdpsnd->dynamic));
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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, "%s QualityMode: %" PRIu16 "",
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rdpsnd_is_dyn_str(rdpsnd->dynamic), 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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audio_formats_free(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_formats_new(rdpsnd->NumberOfServerFormats);
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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 (!audio_format_compatible(rdpsnd->fixed_format, serverFormat))
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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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audio_format_copy(serverFormat, clientFormat);
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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, "%s Stream_New failed!", rdpsnd_is_dyn_str(rdpsnd->dynamic));
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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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if (!audio_format_write(pdu, clientFormat))
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{
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Stream_Free(pdu, TRUE);
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return ERROR_INTERNAL_ERROR;
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}
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}
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Client Audio Formats",
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rdpsnd_is_dyn_str(rdpsnd->dynamic));
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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, 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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audio_formats_free(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_formats_new(wNumberOfFormats);
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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 (!audio_format_read(s, format))
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goto out_fail;
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}
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rdpsnd_select_supported_audio_formats(rdpsnd);
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Server Audio Formats",
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rdpsnd_is_dyn_str(rdpsnd->dynamic));
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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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audio_formats_free(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, UINT16 wTimeStamp,
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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, "%s Stream_New failed!", rdpsnd_is_dyn_str(rdpsnd->dynamic));
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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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"%s Training Response: wTimeStamp: %" PRIu16 " wPackSize: %" PRIu16 "",
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rdpsnd_is_dyn_str(rdpsnd->dynamic), 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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"%s Training Request: wTimeStamp: %" PRIu16 " wPackSize: %" PRIu16 "",
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rdpsnd_is_dyn_str(rdpsnd->dynamic), wTimeStamp, wPackSize);
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return rdpsnd_send_training_confirm_pdu(rdpsnd, wTimeStamp, wPackSize);
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}
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static BOOL rdpsnd_ensure_device_is_open(rdpsndPlugin* rdpsnd, UINT32 wFormatNo,
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const AUDIO_FORMAT* format)
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{
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if (!rdpsnd)
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return FALSE;
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if (!rdpsnd->isOpen || (wFormatNo != rdpsnd->wCurrentFormatNo))
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{
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BOOL rc;
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BOOL supported;
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AUDIO_FORMAT deviceFormat = *format;
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IFCALL(rdpsnd->device->Close, rdpsnd->device);
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supported = IFCALLRESULT(FALSE, rdpsnd->device->FormatSupported, rdpsnd->device, format);
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if (!supported)
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{
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if (!IFCALLRESULT(FALSE, rdpsnd->device->DefaultFormat, rdpsnd->device, format,
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&deviceFormat))
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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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}
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WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Opening device with format %s [backend %s]",
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rdpsnd_is_dyn_str(rdpsnd->dynamic),
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audio_format_get_tag_string(format->wFormatTag),
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audio_format_get_tag_string(deviceFormat.wFormatTag));
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rc = IFCALLRESULT(FALSE, rdpsnd->device->Open, rdpsnd->device, &deviceFormat,
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rdpsnd->latency);
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if (!rc)
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return FALSE;
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if (!supported)
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{
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if (!freerdp_dsp_context_reset(rdpsnd->dsp_context, format))
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return FALSE;
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}
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rdpsnd->isOpen = TRUE;
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rdpsnd->wCurrentFormatNo = wFormatNo;
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rdpsnd->startPlayTime = 0;
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rdpsnd->totalPlaySize = 0;
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}
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return TRUE;
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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, 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 = GetTickCount64();
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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,
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"%s WaveInfo: cBlockNo: %" PRIu8 " wFormatNo: %" PRIu16 " [%s]",
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rdpsnd_is_dyn_str(rdpsnd->dynamic), rdpsnd->cBlockNo, wFormatNo,
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audio_format_get_tag_string(format->wFormatTag));
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if (!rdpsnd_ensure_device_is_open(rdpsnd, wFormatNo, format))
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return ERROR_INTERNAL_ERROR;
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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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/**
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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_wave_confirm_pdu(rdpsndPlugin* rdpsnd, UINT16 wTimeStamp,
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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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if (!pdu)
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{
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WLog_ERR(TAG, "%s Stream_New failed!", rdpsnd_is_dyn_str(rdpsnd->dynamic));
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return CHANNEL_RC_NO_MEMORY;
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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 BOOL rdpsnd_detect_overrun(rdpsndPlugin* rdpsnd, const AUDIO_FORMAT* format, size_t size)
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{
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UINT32 bpf;
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UINT32 now;
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UINT32 duration;
|
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UINT32 totalDuration;
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UINT32 remainingDuration;
|
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UINT32 maxDuration;
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|
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if (!rdpsnd || !format)
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return FALSE;
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|
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audio_format_print(WLog_Get(TAG), WLOG_DEBUG, format);
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bpf = format->nChannels * format->wBitsPerSample * format->nSamplesPerSec / 8;
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if (bpf == 0)
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return FALSE;
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duration = (UINT32)(1000 * size / bpf);
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totalDuration = (UINT32)(1000 * rdpsnd->totalPlaySize / bpf);
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now = GetTickCountPrecise();
|
|
if (rdpsnd->startPlayTime == 0)
|
|
{
|
|
rdpsnd->startPlayTime = now;
|
|
rdpsnd->totalPlaySize = size;
|
|
return FALSE;
|
|
}
|
|
else if (now - rdpsnd->startPlayTime > totalDuration + 10)
|
|
{
|
|
/* Buffer underrun */
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Buffer underrun by %u ms",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic),
|
|
(UINT)(now - rdpsnd->startPlayTime - totalDuration));
|
|
rdpsnd->startPlayTime = now;
|
|
rdpsnd->totalPlaySize = size;
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
/* Calculate remaining duration to be played */
|
|
remainingDuration = totalDuration - (now - rdpsnd->startPlayTime);
|
|
|
|
/* Maximum allow duration calculation */
|
|
maxDuration = duration * 2 + rdpsnd->latency;
|
|
|
|
if (remainingDuration + duration > maxDuration)
|
|
{
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Buffer overrun pending %u ms dropping %u ms",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), remainingDuration, duration);
|
|
return TRUE;
|
|
}
|
|
|
|
rdpsnd->totalPlaySize += size;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static UINT rdpsnd_treat_wave(rdpsndPlugin* rdpsnd, wStream* s, size_t size)
|
|
{
|
|
BYTE* data;
|
|
AUDIO_FORMAT* format;
|
|
UINT64 end;
|
|
UINT64 diffMS, ts;
|
|
UINT latency = 0;
|
|
|
|
if (Stream_GetRemainingLength(s) < size)
|
|
return ERROR_BAD_LENGTH;
|
|
|
|
data = Stream_Pointer(s);
|
|
format = &rdpsnd->ClientFormats[rdpsnd->wCurrentFormatNo];
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG,
|
|
"%s Wave: cBlockNo: %" PRIu8 " wTimeStamp: %" PRIu16 ", size: %" PRIdz,
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), rdpsnd->cBlockNo, rdpsnd->wTimeStamp, size);
|
|
|
|
if (rdpsnd->device && rdpsnd->attached && !rdpsnd_detect_overrun(rdpsnd, format, size))
|
|
{
|
|
UINT status = CHANNEL_RC_OK;
|
|
wStream* pcmData = StreamPool_Take(rdpsnd->pool, 4096);
|
|
|
|
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;
|
|
|
|
Stream_Release(pcmData);
|
|
|
|
if (status != CHANNEL_RC_OK)
|
|
return status;
|
|
}
|
|
|
|
end = GetTickCount64();
|
|
diffMS = end - rdpsnd->wArrivalTime + latency;
|
|
ts = (rdpsnd->wTimeStamp + diffMS) % UINT16_MAX;
|
|
|
|
/* Don't send wave confirm PDU if on dynamic channel */
|
|
if (rdpsnd->dynamic)
|
|
return CHANNEL_RC_OK;
|
|
|
|
return rdpsnd_send_wave_confirm_pdu(rdpsnd, (UINT16)ts, 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.
|
|
*/
|
|
if (Stream_GetRemainingLength(s) < 4)
|
|
return ERROR_INVALID_DATA;
|
|
|
|
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 = GetTickCount64();
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG,
|
|
"%s Wave2PDU: cBlockNo: %" PRIu8 " wFormatNo: %" PRIu16 ", align=%hu",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), rdpsnd->cBlockNo, wFormatNo,
|
|
format->nBlockAlign);
|
|
|
|
if (!rdpsnd_ensure_device_is_open(rdpsnd, wFormatNo, format))
|
|
return ERROR_INTERNAL_ERROR;
|
|
|
|
return rdpsnd_treat_wave(rdpsnd, s, rdpsnd->waveDataSize);
|
|
}
|
|
|
|
static void rdpsnd_recv_close_pdu(rdpsndPlugin* rdpsnd)
|
|
{
|
|
if (rdpsnd->isOpen)
|
|
{
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Closing device",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic));
|
|
}
|
|
else
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Device already closed",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic));
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_recv_volume_pdu(rdpsndPlugin* rdpsnd, wStream* s)
|
|
{
|
|
BOOL rc;
|
|
UINT32 dwVolume;
|
|
|
|
if (Stream_GetRemainingLength(s) < 4)
|
|
return ERROR_BAD_LENGTH;
|
|
|
|
Stream_Read_UINT32(s, dwVolume);
|
|
WLog_Print(rdpsnd->log, WLOG_DEBUG, "%s Volume: 0x%08" PRIX32 "",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), dwVolume);
|
|
rc = IFCALLRESULT(FALSE, rdpsnd->device->SetVolume, rdpsnd->device, dwVolume);
|
|
|
|
if (!rc)
|
|
{
|
|
WLog_ERR(TAG, "%s error setting volume", rdpsnd_is_dyn_str(rdpsnd->dynamic));
|
|
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, "%s unknown msgType %" PRIu8 "", rdpsnd_is_dyn_str(rdpsnd->dynamic),
|
|
msgType);
|
|
break;
|
|
}
|
|
|
|
out:
|
|
Stream_Release(s);
|
|
return status;
|
|
}
|
|
|
|
static void rdpsnd_register_device_plugin(rdpsndPlugin* rdpsnd, rdpsndDevicePlugin* device)
|
|
{
|
|
if (rdpsnd->device)
|
|
{
|
|
WLog_ERR(TAG, "%s existing device, abort.", rdpsnd_is_dyn_str(FALSE));
|
|
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;
|
|
DWORD flags = FREERDP_ADDIN_CHANNEL_STATIC | FREERDP_ADDIN_CHANNEL_ENTRYEX;
|
|
if (rdpsnd->dynamic)
|
|
flags = FREERDP_ADDIN_CHANNEL_DYNAMIC;
|
|
entry =
|
|
(PFREERDP_RDPSND_DEVICE_ENTRY)freerdp_load_channel_addin_entry("rdpsnd", name, NULL, flags);
|
|
|
|
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 %s entry returns error %" PRIu32 "", rdpsnd_is_dyn_str(rdpsnd->dynamic),
|
|
name, error);
|
|
|
|
WLog_INFO(TAG, "%s Loaded %s backend for rdpsnd", rdpsnd_is_dyn_str(rdpsnd->dynamic), name);
|
|
return error;
|
|
}
|
|
|
|
static BOOL rdpsnd_set_subsystem(rdpsndPlugin* rdpsnd, const char* subsystem)
|
|
{
|
|
free(rdpsnd->subsystem);
|
|
rdpsnd->subsystem = _strdup(subsystem);
|
|
return (rdpsnd->subsystem != NULL);
|
|
}
|
|
|
|
static 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);
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
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 }
|
|
};
|
|
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->fixed_format->wFormatTag = (UINT16)val;
|
|
}
|
|
CommandLineSwitchCase(arg, "rate")
|
|
{
|
|
unsigned long val = strtoul(arg->Value, NULL, 0);
|
|
|
|
if ((errno != 0) || (val > UINT32_MAX))
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
rdpsnd->fixed_format->nSamplesPerSec = val;
|
|
}
|
|
CommandLineSwitchCase(arg, "channel")
|
|
{
|
|
unsigned long val = strtoul(arg->Value, NULL, 0);
|
|
|
|
if ((errno != 0) || (val > UINT16_MAX))
|
|
return CHANNEL_RC_INITIALIZATION_ERROR;
|
|
|
|
rdpsnd->fixed_format->nChannels = (UINT16)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,
|
|
"%s Unable to load sound playback subsystem %s because of error %" PRIu32 "",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), 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,
|
|
"%s Unable to load sound playback subsystem %s because of error %" PRIu32
|
|
"",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), 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;
|
|
}
|
|
|
|
/**
|
|
* 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)
|
|
{
|
|
if (rdpsnd->dynamic)
|
|
{
|
|
IWTSVirtualChannel* channel;
|
|
if (rdpsnd->listener_callback)
|
|
{
|
|
channel = rdpsnd->listener_callback->channel_callback->channel;
|
|
status = channel->Write(channel, (UINT32)Stream_Length(s), Stream_Buffer(s), NULL);
|
|
}
|
|
Stream_Free(s, TRUE);
|
|
}
|
|
else
|
|
{
|
|
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, "%s pVirtualChannelWriteEx failed with %s [%08" PRIX32 "]",
|
|
rdpsnd_is_dyn_str(FALSE), 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)
|
|
{
|
|
UINT error;
|
|
|
|
Stream_SealLength(plugin->data_in);
|
|
Stream_SetPosition(plugin->data_in, 0);
|
|
|
|
error = rdpsnd_recv_pdu(plugin, plugin->data_in);
|
|
if (error)
|
|
return 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;
|
|
|
|
switch (event)
|
|
{
|
|
case CHANNEL_EVENT_DATA_RECEIVED:
|
|
if (!rdpsnd)
|
|
return;
|
|
|
|
if (rdpsnd->OpenHandle != openHandle)
|
|
{
|
|
WLog_ERR(TAG, "%s error no match", rdpsnd_is_dyn_str(rdpsnd->dynamic));
|
|
return;
|
|
}
|
|
if ((error = rdpsnd_virtual_channel_event_data_received(rdpsnd, pData, dataLength,
|
|
totalLength, dataFlags)))
|
|
WLog_ERR(TAG,
|
|
"%s rdpsnd_virtual_channel_event_data_received failed with error %" PRIu32
|
|
"",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), error);
|
|
|
|
break;
|
|
|
|
case CHANNEL_EVENT_WRITE_CANCELLED:
|
|
case CHANNEL_EVENT_WRITE_COMPLETE:
|
|
{
|
|
wStream* s = (wStream*)pData;
|
|
Stream_Free(s, TRUE);
|
|
}
|
|
break;
|
|
|
|
case CHANNEL_EVENT_USER:
|
|
break;
|
|
}
|
|
|
|
if (error && rdpsnd && rdpsnd->rdpcontext)
|
|
{
|
|
char buffer[8192];
|
|
_snprintf(buffer, sizeof(buffer),
|
|
"%s rdpsnd_virtual_channel_open_event_ex reported an error",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic));
|
|
setChannelError(rdpsnd->rdpcontext, error, buffer);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
WINPR_UNUSED(pData);
|
|
WINPR_UNUSED(dataLength);
|
|
|
|
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, "%s pVirtualChannelOpenEx failed with %s [%08" PRIX32 "]",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), WTSErrorToString(status), status);
|
|
return status;
|
|
}
|
|
|
|
rdpsnd->dsp_context = freerdp_dsp_context_new(FALSE);
|
|
|
|
if (!rdpsnd->dsp_context)
|
|
goto fail;
|
|
|
|
rdpsnd->pool = StreamPool_New(TRUE, 4096);
|
|
|
|
if (!rdpsnd->pool)
|
|
goto fail;
|
|
|
|
return rdpsnd_process_connect(rdpsnd);
|
|
fail:
|
|
freerdp_dsp_context_free(rdpsnd->dsp_context);
|
|
StreamPool_Free(rdpsnd->pool);
|
|
|
|
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;
|
|
|
|
if (rdpsnd->device)
|
|
IFCALL(rdpsnd->device->Close, rdpsnd->device);
|
|
|
|
error =
|
|
rdpsnd->channelEntryPoints.pVirtualChannelCloseEx(rdpsnd->InitHandle, rdpsnd->OpenHandle);
|
|
|
|
if (CHANNEL_RC_OK != error)
|
|
{
|
|
WLog_ERR(TAG, "%s pVirtualChannelCloseEx failed with %s [%08" PRIX32 "]",
|
|
rdpsnd_is_dyn_str(rdpsnd->dynamic), 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);
|
|
|
|
audio_formats_free(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
|
|
rdpsnd->NumberOfClientFormats = 0;
|
|
rdpsnd->ClientFormats = NULL;
|
|
audio_formats_free(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)
|
|
{
|
|
audio_formats_free(rdpsnd->fixed_format, 1);
|
|
free(rdpsnd->subsystem);
|
|
free(rdpsnd->device_name);
|
|
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)
|
|
return;
|
|
|
|
if (plugin->InitHandle != pInitHandle)
|
|
{
|
|
WLog_ERR(TAG, "%s error no match", rdpsnd_is_dyn_str(plugin->dynamic));
|
|
return;
|
|
}
|
|
|
|
switch (event)
|
|
{
|
|
case CHANNEL_EVENT_INITIALIZED:
|
|
break;
|
|
|
|
case CHANNEL_EVENT_CONNECTED:
|
|
error = rdpsnd_virtual_channel_event_connected(plugin, pData, dataLength);
|
|
break;
|
|
|
|
case CHANNEL_EVENT_DISCONNECTED:
|
|
error = rdpsnd_virtual_channel_event_disconnected(plugin);
|
|
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)
|
|
{
|
|
char buffer[8192];
|
|
_snprintf(buffer, sizeof(buffer), "%s %s reported an error",
|
|
rdpsnd_is_dyn_str(plugin->dynamic), __FUNCTION__);
|
|
setChannelError(plugin->rdpcontext, error, buffer);
|
|
}
|
|
}
|
|
|
|
rdpContext* freerdp_rdpsnd_get_context(rdpsndPlugin* plugin)
|
|
{
|
|
if (!plugin)
|
|
return NULL;
|
|
|
|
return plugin->rdpcontext;
|
|
}
|
|
|
|
/* rdpsnd is always built-in */
|
|
BOOL VCAPITYPE rdpsnd_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;
|
|
sprintf_s(rdpsnd->channelDef.name, ARRAYSIZE(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->fixed_format = audio_format_new();
|
|
|
|
if (!rdpsnd->fixed_format)
|
|
{
|
|
free(rdpsnd);
|
|
return FALSE;
|
|
}
|
|
|
|
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, "%s pVirtualChannelInitEx failed with %s [%08" PRIX32 "]",
|
|
rdpsnd_is_dyn_str(FALSE), WTSErrorToString(rc), rc);
|
|
free(rdpsnd);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static UINT rdpsnd_on_open(IWTSVirtualChannelCallback* pChannelCallback)
|
|
{
|
|
RDPSND_CHANNEL_CALLBACK* callback = (RDPSND_CHANNEL_CALLBACK*)pChannelCallback;
|
|
rdpsndPlugin* rdpsnd = (rdpsndPlugin*)callback->plugin;
|
|
|
|
rdpsnd->dsp_context = freerdp_dsp_context_new(FALSE);
|
|
if (!rdpsnd->dsp_context)
|
|
goto fail;
|
|
|
|
rdpsnd->pool = StreamPool_New(TRUE, 4096);
|
|
if (!rdpsnd->pool)
|
|
goto fail;
|
|
|
|
return rdpsnd_process_connect(rdpsnd);
|
|
fail:
|
|
freerdp_dsp_context_free(rdpsnd->dsp_context);
|
|
StreamPool_Free(rdpsnd->pool);
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
|
|
static UINT rdpsnd_on_data_received(IWTSVirtualChannelCallback* pChannelCallback, wStream* data)
|
|
{
|
|
RDPSND_CHANNEL_CALLBACK* callback = (RDPSND_CHANNEL_CALLBACK*)pChannelCallback;
|
|
return rdpsnd_recv_pdu((rdpsndPlugin*)callback->plugin, data);
|
|
}
|
|
|
|
static UINT rdpsnd_on_close(IWTSVirtualChannelCallback* pChannelCallback)
|
|
{
|
|
RDPSND_CHANNEL_CALLBACK* callback = (RDPSND_CHANNEL_CALLBACK*)pChannelCallback;
|
|
rdpsndPlugin* rdpsnd = (rdpsndPlugin*)callback->plugin;
|
|
|
|
if (rdpsnd->device)
|
|
IFCALL(rdpsnd->device->Close, rdpsnd->device);
|
|
freerdp_dsp_context_free(rdpsnd->dsp_context);
|
|
StreamPool_Return(rdpsnd->pool, rdpsnd->data_in);
|
|
StreamPool_Free(rdpsnd->pool);
|
|
|
|
audio_formats_free(rdpsnd->ClientFormats, rdpsnd->NumberOfClientFormats);
|
|
rdpsnd->NumberOfClientFormats = 0;
|
|
rdpsnd->ClientFormats = NULL;
|
|
audio_formats_free(rdpsnd->ServerFormats, rdpsnd->NumberOfServerFormats);
|
|
rdpsnd->NumberOfServerFormats = 0;
|
|
rdpsnd->ServerFormats = NULL;
|
|
if (rdpsnd->device)
|
|
{
|
|
IFCALL(rdpsnd->device->Free, rdpsnd->device);
|
|
rdpsnd->device = NULL;
|
|
}
|
|
|
|
free(pChannelCallback);
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static UINT rdpsnd_on_new_channel_connection(IWTSListenerCallback* pListenerCallback,
|
|
IWTSVirtualChannel* pChannel, BYTE* Data,
|
|
BOOL* pbAccept,
|
|
IWTSVirtualChannelCallback** ppCallback)
|
|
{
|
|
RDPSND_CHANNEL_CALLBACK* callback;
|
|
RDPSND_LISTENER_CALLBACK* listener_callback = (RDPSND_LISTENER_CALLBACK*)pListenerCallback;
|
|
callback = (RDPSND_CHANNEL_CALLBACK*)calloc(1, sizeof(RDPSND_CHANNEL_CALLBACK));
|
|
|
|
WINPR_UNUSED(Data);
|
|
WINPR_UNUSED(pbAccept);
|
|
|
|
if (!callback)
|
|
{
|
|
WLog_ERR(TAG, "%s calloc failed!", rdpsnd_is_dyn_str(TRUE));
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
|
|
callback->iface.OnOpen = rdpsnd_on_open;
|
|
callback->iface.OnDataReceived = rdpsnd_on_data_received;
|
|
callback->iface.OnClose = rdpsnd_on_close;
|
|
callback->plugin = listener_callback->plugin;
|
|
callback->channel_mgr = listener_callback->channel_mgr;
|
|
callback->channel = pChannel;
|
|
listener_callback->channel_callback = callback;
|
|
*ppCallback = (IWTSVirtualChannelCallback*)callback;
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
static UINT rdpsnd_plugin_initialize(IWTSPlugin* pPlugin, IWTSVirtualChannelManager* pChannelMgr)
|
|
{
|
|
UINT status;
|
|
rdpsndPlugin* rdpsnd = (rdpsndPlugin*)pPlugin;
|
|
rdpsnd->listener_callback =
|
|
(RDPSND_LISTENER_CALLBACK*)calloc(1, sizeof(RDPSND_LISTENER_CALLBACK));
|
|
|
|
if (!rdpsnd->listener_callback)
|
|
{
|
|
WLog_ERR(TAG, "%s calloc failed!", rdpsnd_is_dyn_str(TRUE));
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
|
|
rdpsnd->listener_callback->iface.OnNewChannelConnection = rdpsnd_on_new_channel_connection;
|
|
rdpsnd->listener_callback->plugin = pPlugin;
|
|
rdpsnd->listener_callback->channel_mgr = pChannelMgr;
|
|
status = pChannelMgr->CreateListener(pChannelMgr, RDPSND_DVC_CHANNEL_NAME, 0,
|
|
(IWTSListenerCallback*)rdpsnd->listener_callback,
|
|
&(rdpsnd->listener));
|
|
rdpsnd->listener->pInterface = rdpsnd->iface.pInterface;
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
static UINT rdpsnd_plugin_terminated(IWTSPlugin* pPlugin)
|
|
{
|
|
rdpsndPlugin* rdpsnd = (rdpsndPlugin*)pPlugin;
|
|
free(rdpsnd->listener_callback);
|
|
free(rdpsnd->iface.pInterface);
|
|
rdpsnd_virtual_channel_event_terminated(rdpsnd);
|
|
return CHANNEL_RC_OK;
|
|
}
|
|
|
|
/**
|
|
* Function description
|
|
*
|
|
* @return 0 on success, otherwise a Win32 error code
|
|
*/
|
|
UINT rdpsnd_DVCPluginEntry(IDRDYNVC_ENTRY_POINTS* pEntryPoints)
|
|
{
|
|
UINT error = CHANNEL_RC_OK;
|
|
rdpsndPlugin* rdpsnd = (rdpsndPlugin*)pEntryPoints->GetPlugin(pEntryPoints, "rdpsnd");
|
|
|
|
if (!rdpsnd)
|
|
{
|
|
rdpsnd = (rdpsndPlugin*)calloc(1, sizeof(rdpsndPlugin));
|
|
if (!rdpsnd)
|
|
{
|
|
WLog_ERR(TAG, "%s calloc failed!", rdpsnd_is_dyn_str(TRUE));
|
|
return CHANNEL_RC_NO_MEMORY;
|
|
}
|
|
|
|
rdpsnd->iface.Initialize = rdpsnd_plugin_initialize;
|
|
rdpsnd->iface.Connected = NULL;
|
|
rdpsnd->iface.Disconnected = NULL;
|
|
rdpsnd->iface.Terminated = rdpsnd_plugin_terminated;
|
|
rdpsnd->attached = TRUE;
|
|
rdpsnd->dynamic = TRUE;
|
|
rdpsnd->fixed_format = audio_format_new();
|
|
if (!rdpsnd->fixed_format)
|
|
{
|
|
free(rdpsnd);
|
|
return FALSE;
|
|
}
|
|
rdpsnd->log = WLog_Get("com.freerdp.channels.rdpsnd.client");
|
|
rdpsnd->channelEntryPoints.pExtendedData = pEntryPoints->GetPluginData(pEntryPoints);
|
|
|
|
error = pEntryPoints->RegisterPlugin(pEntryPoints, "rdpsnd", &rdpsnd->iface);
|
|
}
|
|
else
|
|
{
|
|
WLog_ERR(TAG, "%s could not get disp Plugin.", rdpsnd_is_dyn_str(TRUE));
|
|
return CHANNEL_RC_BAD_CHANNEL;
|
|
}
|
|
|
|
return error;
|
|
}
|