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Milestone 5: deliver embedded RDP sessions and lifecycle hardening

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This commit is contained in:
Keith Smith
2026-03-03 18:59:26 -07:00
parent 230a401386
commit 36006bd4aa
2941 changed files with 724359 additions and 77 deletions
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29
third_party/FreeRDP/channels/audin/client/opensles/CMakeLists.txt vendored Normal file
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# FreeRDP: A Remote Desktop Protocol Implementation
# FreeRDP cmake build script
#
# Copyright 2013 Armin Novak <armin.novak@gmail.com>
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
define_channel_client_subsystem("audin" "opensles" "")
find_package(OpenSLES REQUIRED)
set(${MODULE_PREFIX}_SRCS opensl_io.c audin_opensl_es.c)
set(${MODULE_PREFIX}_LIBS winpr freerdp ${OpenSLES_LIBRARIES})
include_directories(..)
include_directories(SYSTEM ${OpenSLES_INCLUDE_DIRS})
add_channel_client_subsystem_library(${MODULE_PREFIX} ${MODULE_NAME} ${CHANNEL_NAME} "" TRUE "")

334
third_party/FreeRDP/channels/audin/client/opensles/audin_opensl_es.c vendored Normal file
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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Audio Input Redirection Virtual Channel - OpenSL ES implementation
*
* Copyright 2013 Armin Novak <armin.novak@gmail.com>
* Copyright 2015 Thincast Technologies GmbH
* Copyright 2015 DI (FH) Martin Haimberger <martin.haimberger@thincast.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <freerdp/config.h>
#include <winpr/assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/cmdline.h>
#include <freerdp/freerdp.h>
#include <freerdp/addin.h>
#include <freerdp/channels/rdpsnd.h>
#include <SLES/OpenSLES.h>
#include <freerdp/client/audin.h>
#include "audin_main.h"
#include "opensl_io.h"
typedef struct
{
IAudinDevice iface;
char* device_name;
OPENSL_STREAM* stream;
AUDIO_FORMAT format;
UINT32 frames_per_packet;
UINT32 bytes_per_channel;
AudinReceive receive;
void* user_data;
rdpContext* rdpcontext;
wLog* log;
} AudinOpenSLESDevice;
static UINT audin_opensles_close(IAudinDevice* device);
static void audin_receive(void* context, const void* data, size_t size)
{
UINT error;
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)context;
if (!opensles || !data)
{
WLog_ERR(TAG, "Invalid arguments context=%p, data=%p", opensles, data);
return;
}
error = opensles->receive(&opensles->format, data, size, opensles->user_data);
if (error && opensles->rdpcontext)
setChannelError(opensles->rdpcontext, error, "audin_receive reported an error");
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT audin_opensles_free(IAudinDevice* device)
{
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)device;
if (!opensles)
return ERROR_INVALID_PARAMETER;
WLog_Print(opensles->log, WLOG_DEBUG, "device=%p", (void*)device);
free(opensles->device_name);
free(opensles);
return CHANNEL_RC_OK;
}
static BOOL audin_opensles_format_supported(IAudinDevice* device, const AUDIO_FORMAT* format)
{
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)device;
if (!opensles || !format)
return FALSE;
WLog_Print(opensles->log, WLOG_DEBUG, "device=%p, format=%p", (void*)opensles, (void*)format);
WINPR_ASSERT(format);
switch (format->wFormatTag)
{
case WAVE_FORMAT_PCM: /* PCM */
if (format->cbSize == 0 && (format->nSamplesPerSec <= 48000) &&
(format->wBitsPerSample == 8 || format->wBitsPerSample == 16) &&
(format->nChannels >= 1 && format->nChannels <= 2))
{
return TRUE;
}
break;
default:
WLog_Print(opensles->log, WLOG_DEBUG, "Encoding '%s' [0x%04" PRIX16 "] not supported",
audio_format_get_tag_string(format->wFormatTag), format->wFormatTag);
break;
}
return FALSE;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT audin_opensles_set_format(IAudinDevice* device, const AUDIO_FORMAT* format,
UINT32 FramesPerPacket)
{
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)device;
if (!opensles || !format)
return ERROR_INVALID_PARAMETER;
WLog_Print(opensles->log, WLOG_DEBUG, "device=%p, format=%p, FramesPerPacket=%" PRIu32 "",
(void*)device, (void*)format, FramesPerPacket);
WINPR_ASSERT(format);
opensles->format = *format;
switch (format->wFormatTag)
{
case WAVE_FORMAT_PCM:
opensles->frames_per_packet = FramesPerPacket;
switch (format->wBitsPerSample)
{
case 4:
opensles->bytes_per_channel = 1;
break;
case 8:
opensles->bytes_per_channel = 1;
break;
case 16:
opensles->bytes_per_channel = 2;
break;
default:
return ERROR_UNSUPPORTED_TYPE;
}
break;
default:
WLog_Print(opensles->log, WLOG_ERROR,
"Encoding '%" PRIu16 "' [%04" PRIX16 "] not supported", format->wFormatTag,
format->wFormatTag);
return ERROR_UNSUPPORTED_TYPE;
}
WLog_Print(opensles->log, WLOG_DEBUG, "frames_per_packet=%" PRIu32,
opensles->frames_per_packet);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT audin_opensles_open(IAudinDevice* device, AudinReceive receive, void* user_data)
{
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)device;
if (!opensles || !receive || !user_data)
return ERROR_INVALID_PARAMETER;
WLog_Print(opensles->log, WLOG_DEBUG, "device=%p, receive=%p, user_data=%p", (void*)device,
(void*)receive, (void*)user_data);
if (opensles->stream)
goto error_out;
if (!(opensles->stream = android_OpenRecDevice(
opensles, audin_receive, opensles->format.nSamplesPerSec, opensles->format.nChannels,
opensles->frames_per_packet, opensles->format.wBitsPerSample)))
{
WLog_Print(opensles->log, WLOG_ERROR, "android_OpenRecDevice failed!");
goto error_out;
}
opensles->receive = receive;
opensles->user_data = user_data;
return CHANNEL_RC_OK;
error_out:
audin_opensles_close(device);
return ERROR_INTERNAL_ERROR;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
UINT audin_opensles_close(IAudinDevice* device)
{
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)device;
if (!opensles)
return ERROR_INVALID_PARAMETER;
WLog_Print(opensles->log, WLOG_DEBUG, "device=%p", (void*)device);
android_CloseRecDevice(opensles->stream);
opensles->receive = nullptr;
opensles->user_data = nullptr;
opensles->stream = nullptr;
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT audin_opensles_parse_addin_args(AudinOpenSLESDevice* device, const ADDIN_ARGV* args)
{
UINT status;
DWORD flags;
const COMMAND_LINE_ARGUMENT_A* arg;
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)device;
COMMAND_LINE_ARGUMENT_A audin_opensles_args[] = {
{ "dev", COMMAND_LINE_VALUE_REQUIRED, "<device>", nullptr, nullptr, -1, nullptr,
"audio device name" },
{ nullptr, 0, nullptr, nullptr, nullptr, -1, nullptr, nullptr }
};
WLog_Print(opensles->log, WLOG_DEBUG, "device=%p, args=%p", (void*)device, (void*)args);
flags =
COMMAND_LINE_SIGIL_NONE | COMMAND_LINE_SEPARATOR_COLON | COMMAND_LINE_IGN_UNKNOWN_KEYWORD;
status = CommandLineParseArgumentsA(args->argc, args->argv, audin_opensles_args, flags,
opensles, nullptr, nullptr);
if (status < 0)
return status;
arg = audin_opensles_args;
do
{
if (!(arg->Flags & COMMAND_LINE_VALUE_PRESENT))
continue;
CommandLineSwitchStart(arg) CommandLineSwitchCase(arg, "dev")
{
opensles->device_name = _strdup(arg->Value);
if (!opensles->device_name)
{
WLog_Print(opensles->log, WLOG_ERROR, "_strdup failed!");
return CHANNEL_RC_NO_MEMORY;
}
}
CommandLineSwitchEnd(arg)
} while ((arg = CommandLineFindNextArgumentA(arg)) != nullptr);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
FREERDP_ENTRY_POINT(UINT VCAPITYPE opensles_freerdp_audin_client_subsystem_entry(
PFREERDP_AUDIN_DEVICE_ENTRY_POINTS pEntryPoints))
{
UINT error = ERROR_INTERNAL_ERROR;
AudinOpenSLESDevice* opensles = (AudinOpenSLESDevice*)calloc(1, sizeof(AudinOpenSLESDevice));
if (!opensles)
{
WLog_ERR(TAG, "calloc failed!");
return CHANNEL_RC_NO_MEMORY;
}
opensles->log = WLog_Get(TAG);
opensles->iface.Open = audin_opensles_open;
opensles->iface.FormatSupported = audin_opensles_format_supported;
opensles->iface.SetFormat = audin_opensles_set_format;
opensles->iface.Close = audin_opensles_close;
opensles->iface.Free = audin_opensles_free;
opensles->rdpcontext = pEntryPoints->rdpcontext;
const ADDIN_ARGV* args = pEntryPoints->args;
if ((error = audin_opensles_parse_addin_args(opensles, args)))
{
WLog_Print(opensles->log, WLOG_ERROR,
"audin_opensles_parse_addin_args failed with errorcode %" PRIu32 "!", error);
goto error_out;
}
if ((error = pEntryPoints->pRegisterAudinDevice(pEntryPoints->plugin, (IAudinDevice*)opensles)))
{
WLog_Print(opensles->log, WLOG_ERROR, "RegisterAudinDevice failed with error %" PRIu32 "!",
error);
goto error_out;
}
return CHANNEL_RC_OK;
error_out:
free(opensles);
return error;
}

388
third_party/FreeRDP/channels/audin/client/opensles/opensl_io.c vendored Normal file
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/*
opensl_io.c:
Android OpenSL input/output module
Copyright (c) 2012, Victor Lazzarini
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the <organization> nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <winpr/assert.h>
#include "audin_main.h"
#include "opensl_io.h"
#define CONV16BIT 32768
#define CONVMYFLT (1. / 32768.)
typedef struct
{
size_t size;
void* data;
} queue_element;
struct opensl_stream
{
// engine interfaces
SLObjectItf engineObject;
SLEngineItf engineEngine;
// device interfaces
SLDeviceVolumeItf deviceVolume;
// recorder interfaces
SLObjectItf recorderObject;
SLRecordItf recorderRecord;
SLAndroidSimpleBufferQueueItf recorderBufferQueue;
unsigned int inchannels;
unsigned int sr;
unsigned int buffersize;
unsigned int bits_per_sample;
queue_element* prep;
queue_element* next;
void* context;
opensl_receive_t receive;
};
static void bqRecorderCallback(SLAndroidSimpleBufferQueueItf bq, void* context);
// creates the OpenSL ES audio engine
static SLresult openSLCreateEngine(OPENSL_STREAM* p)
{
SLresult result;
// create engine
result = slCreateEngine(&(p->engineObject), 0, nullptr, 0, nullptr, nullptr);
if (result != SL_RESULT_SUCCESS)
goto engine_end;
// realize the engine
result = (*p->engineObject)->Realize(p->engineObject, SL_BOOLEAN_FALSE);
if (result != SL_RESULT_SUCCESS)
goto engine_end;
// get the engine interface, which is needed in order to create other objects
result = (*p->engineObject)->GetInterface(p->engineObject, SL_IID_ENGINE, &(p->engineEngine));
if (result != SL_RESULT_SUCCESS)
goto engine_end;
// get the volume interface - important, this is optional!
result =
(*p->engineObject)->GetInterface(p->engineObject, SL_IID_DEVICEVOLUME, &(p->deviceVolume));
if (result != SL_RESULT_SUCCESS)
{
p->deviceVolume = nullptr;
result = SL_RESULT_SUCCESS;
}
engine_end:
WINPR_ASSERT(SL_RESULT_SUCCESS == result);
return result;
}
// Open the OpenSL ES device for input
static SLresult openSLRecOpen(OPENSL_STREAM* p)
{
SLresult result;
SLuint32 sr = p->sr;
SLuint32 channels = p->inchannels;
WINPR_ASSERT(!p->recorderObject);
if (channels)
{
switch (sr)
{
case 8000:
sr = SL_SAMPLINGRATE_8;
break;
case 11025:
sr = SL_SAMPLINGRATE_11_025;
break;
case 16000:
sr = SL_SAMPLINGRATE_16;
break;
case 22050:
sr = SL_SAMPLINGRATE_22_05;
break;
case 24000:
sr = SL_SAMPLINGRATE_24;
break;
case 32000:
sr = SL_SAMPLINGRATE_32;
break;
case 44100:
sr = SL_SAMPLINGRATE_44_1;
break;
case 48000:
sr = SL_SAMPLINGRATE_48;
break;
case 64000:
sr = SL_SAMPLINGRATE_64;
break;
case 88200:
sr = SL_SAMPLINGRATE_88_2;
break;
case 96000:
sr = SL_SAMPLINGRATE_96;
break;
case 192000:
sr = SL_SAMPLINGRATE_192;
break;
default:
return -1;
}
// configure audio source
SLDataLocator_IODevice loc_dev = { SL_DATALOCATOR_IODEVICE, SL_IODEVICE_AUDIOINPUT,
SL_DEFAULTDEVICEID_AUDIOINPUT, nullptr };
SLDataSource audioSrc = { &loc_dev, nullptr };
// configure audio sink
int speakers;
if (channels > 1)
speakers = SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT;
else
speakers = SL_SPEAKER_FRONT_CENTER;
SLDataLocator_AndroidSimpleBufferQueue loc_bq = { SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE,
2 };
SLDataFormat_PCM format_pcm;
format_pcm.formatType = SL_DATAFORMAT_PCM;
format_pcm.numChannels = channels;
format_pcm.samplesPerSec = sr;
format_pcm.channelMask = speakers;
format_pcm.endianness = SL_BYTEORDER_LITTLEENDIAN;
if (16 == p->bits_per_sample)
{
format_pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_16;
format_pcm.containerSize = 16;
}
else if (8 == p->bits_per_sample)
{
format_pcm.bitsPerSample = SL_PCMSAMPLEFORMAT_FIXED_8;
format_pcm.containerSize = 8;
}
else
WINPR_ASSERT(0);
SLDataSink audioSnk = { &loc_bq, &format_pcm };
// create audio recorder
// (requires the RECORD_AUDIO permission)
const SLInterfaceID id[] = { SL_IID_ANDROIDSIMPLEBUFFERQUEUE };
const SLboolean req[] = { SL_BOOLEAN_TRUE };
result = (*p->engineEngine)
->CreateAudioRecorder(p->engineEngine, &(p->recorderObject), &audioSrc,
&audioSnk, 1, id, req);
WINPR_ASSERT(!result);
if (SL_RESULT_SUCCESS != result)
goto end_recopen;
// realize the audio recorder
result = (*p->recorderObject)->Realize(p->recorderObject, SL_BOOLEAN_FALSE);
WINPR_ASSERT(!result);
if (SL_RESULT_SUCCESS != result)
goto end_recopen;
// get the record interface
result = (*p->recorderObject)
->GetInterface(p->recorderObject, SL_IID_RECORD, &(p->recorderRecord));
WINPR_ASSERT(!result);
if (SL_RESULT_SUCCESS != result)
goto end_recopen;
// get the buffer queue interface
result = (*p->recorderObject)
->GetInterface(p->recorderObject, SL_IID_ANDROIDSIMPLEBUFFERQUEUE,
&(p->recorderBufferQueue));
WINPR_ASSERT(!result);
if (SL_RESULT_SUCCESS != result)
goto end_recopen;
// register callback on the buffer queue
result = (*p->recorderBufferQueue)
->RegisterCallback(p->recorderBufferQueue, bqRecorderCallback, p);
WINPR_ASSERT(!result);
if (SL_RESULT_SUCCESS != result)
goto end_recopen;
end_recopen:
return result;
}
else
return SL_RESULT_SUCCESS;
}
// close the OpenSL IO and destroy the audio engine
static void openSLDestroyEngine(OPENSL_STREAM* p)
{
// destroy audio recorder object, and invalidate all associated interfaces
if (p->recorderObject != nullptr)
{
(*p->recorderObject)->Destroy(p->recorderObject);
p->recorderObject = nullptr;
p->recorderRecord = nullptr;
p->recorderBufferQueue = nullptr;
}
// destroy engine object, and invalidate all associated interfaces
if (p->engineObject != nullptr)
{
(*p->engineObject)->Destroy(p->engineObject);
p->engineObject = nullptr;
p->engineEngine = nullptr;
}
}
static queue_element* opensles_queue_element_new(size_t size)
{
queue_element* q = calloc(1, sizeof(queue_element));
if (!q)
goto fail;
q->size = size;
q->data = malloc(size);
if (!q->data)
goto fail;
return q;
fail:
free(q);
return nullptr;
}
static void opensles_queue_element_free(void* obj)
{
queue_element* e = (queue_element*)obj;
if (e)
free(e->data);
free(e);
}
// open the android audio device for input
OPENSL_STREAM* android_OpenRecDevice(void* context, opensl_receive_t receive, int sr,
int inchannels, int bufferframes, int bits_per_sample)
{
OPENSL_STREAM* p;
if (!context || !receive)
return nullptr;
p = (OPENSL_STREAM*)calloc(1, sizeof(OPENSL_STREAM));
if (!p)
return nullptr;
p->context = context;
p->receive = receive;
p->inchannels = inchannels;
p->sr = sr;
p->buffersize = bufferframes;
p->bits_per_sample = bits_per_sample;
if ((p->bits_per_sample != 8) && (p->bits_per_sample != 16))
goto fail;
if (openSLCreateEngine(p) != SL_RESULT_SUCCESS)
goto fail;
if (openSLRecOpen(p) != SL_RESULT_SUCCESS)
goto fail;
/* Create receive buffers, prepare them and start recording */
p->prep = opensles_queue_element_new(p->buffersize * p->bits_per_sample / 8);
p->next = opensles_queue_element_new(p->buffersize * p->bits_per_sample / 8);
if (!p->prep || !p->next)
goto fail;
(*p->recorderBufferQueue)->Enqueue(p->recorderBufferQueue, p->next->data, p->next->size);
(*p->recorderBufferQueue)->Enqueue(p->recorderBufferQueue, p->prep->data, p->prep->size);
(*p->recorderRecord)->SetRecordState(p->recorderRecord, SL_RECORDSTATE_RECORDING);
return p;
fail:
android_CloseRecDevice(p);
return nullptr;
}
// close the android audio device
void android_CloseRecDevice(OPENSL_STREAM* p)
{
if (p == nullptr)
return;
opensles_queue_element_free(p->next);
opensles_queue_element_free(p->prep);
openSLDestroyEngine(p);
free(p);
}
// this callback handler is called every time a buffer finishes recording
static void bqRecorderCallback(SLAndroidSimpleBufferQueueItf bq, void* context)
{
OPENSL_STREAM* p = (OPENSL_STREAM*)context;
queue_element* e;
if (!p)
return;
e = p->next;
if (!e)
return;
if (!p->context || !p->receive)
WLog_WARN(TAG, "Missing receive callback=%p, context=%p", p->receive, p->context);
else
p->receive(p->context, e->data, e->size);
p->next = p->prep;
p->prep = e;
(*p->recorderBufferQueue)->Enqueue(p->recorderBufferQueue, e->data, e->size);
}

67
third_party/FreeRDP/channels/audin/client/opensles/opensl_io.h vendored Normal file
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@@ -0,0 +1,67 @@
/*
opensl_io.c:
Android OpenSL input/output module header
Copyright (c) 2012, Victor Lazzarini
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the <organization> nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef FREERDP_CHANNEL_AUDIN_CLIENT_OPENSL_IO_H
#define FREERDP_CHANNEL_AUDIN_CLIENT_OPENSL_IO_H
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
#include <freerdp/api.h>
#include <stdlib.h>
#ifdef __cplusplus
extern "C"
{
#endif
typedef struct opensl_stream OPENSL_STREAM;
typedef void (*opensl_receive_t)(void* context, const void* data, size_t size);
/*
Close the audio device
*/
FREERDP_LOCAL void android_CloseRecDevice(OPENSL_STREAM* p);
/*
Open the audio device with a given sampling rate (sr), input and output channels and IO buffer
size in frames. Returns a handle to the OpenSL stream
*/
WINPR_ATTR_MALLOC(android_CloseRecDevice, 1)
WINPR_ATTR_NODISCARD
FREERDP_LOCAL OPENSL_STREAM* android_OpenRecDevice(void* context, opensl_receive_t receive,
int sr, int inchannels, int bufferframes,
int bits_per_sample);
#ifdef __cplusplus
};
#endif
#endif /* FREERDP_CHANNEL_AUDIN_CLIENT_OPENSL_IO_H */