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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* Audio Output Virtual Channel
*
* Copyright 2019 Armin Novak <armin.novak@thincast.com>
* Copyright 2019 Thincast Technologies GmbH
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/stream.h>
#include <winpr/cmdline.h>
#include <freerdp/types.h>
#include <freerdp/settings.h>
#include "rdpsnd_main.h"
typedef struct
{
rdpsndDevicePlugin device;
} rdpsndFakePlugin;
static BOOL rdpsnd_fake_open(rdpsndDevicePlugin* device, const AUDIO_FORMAT* format, UINT32 latency)
{
return TRUE;
}
static void rdpsnd_fake_close(rdpsndDevicePlugin* device)
{
}
static BOOL rdpsnd_fake_set_volume(rdpsndDevicePlugin* device, UINT32 value)
{
return TRUE;
}
static void rdpsnd_fake_free(rdpsndDevicePlugin* device)
{
rdpsndFakePlugin* fake = (rdpsndFakePlugin*)device;
if (!fake)
return;
free(fake);
}
static BOOL rdpsnd_fake_format_supported(rdpsndDevicePlugin* device, const AUDIO_FORMAT* format)
{
return TRUE;
}
static UINT rdpsnd_fake_play(rdpsndDevicePlugin* device, const BYTE* data, size_t size)
{
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
static UINT rdpsnd_fake_parse_addin_args(rdpsndFakePlugin* fake, const ADDIN_ARGV* args)
{
int status = 0;
DWORD flags = 0;
const COMMAND_LINE_ARGUMENT_A* arg = NULL;
COMMAND_LINE_ARGUMENT_A rdpsnd_fake_args[] = { { NULL, 0, NULL, NULL, NULL, -1, NULL, NULL } };
flags =
COMMAND_LINE_SIGIL_NONE | COMMAND_LINE_SEPARATOR_COLON | COMMAND_LINE_IGN_UNKNOWN_KEYWORD;
status = CommandLineParseArgumentsA(args->argc, args->argv, rdpsnd_fake_args, flags, fake, NULL,
NULL);
if (status < 0)
return ERROR_INVALID_DATA;
arg = rdpsnd_fake_args;
do
{
if (!(arg->Flags & COMMAND_LINE_VALUE_PRESENT))
continue;
CommandLineSwitchStart(arg) CommandLineSwitchEnd(arg)
} while ((arg = CommandLineFindNextArgumentA(arg)) != NULL);
return CHANNEL_RC_OK;
}
/**
* Function description
*
* @return 0 on success, otherwise a Win32 error code
*/
FREERDP_ENTRY_POINT(UINT fake_freerdp_rdpsnd_client_subsystem_entry(
PFREERDP_RDPSND_DEVICE_ENTRY_POINTS pEntryPoints))
{
const ADDIN_ARGV* args = NULL;
rdpsndFakePlugin* fake = NULL;
UINT ret = CHANNEL_RC_OK;
fake = (rdpsndFakePlugin*)calloc(1, sizeof(rdpsndFakePlugin));
if (!fake)
return CHANNEL_RC_NO_MEMORY;
fake->device.Open = rdpsnd_fake_open;
fake->device.FormatSupported = rdpsnd_fake_format_supported;
fake->device.SetVolume = rdpsnd_fake_set_volume;
fake->device.Play = rdpsnd_fake_play;
fake->device.Close = rdpsnd_fake_close;
fake->device.Free = rdpsnd_fake_free;
args = pEntryPoints->args;
if (args->argc > 1)
{
ret = rdpsnd_fake_parse_addin_args(fake, args);
if (ret != CHANNEL_RC_OK)
{
WLog_ERR(TAG, "error parsing arguments");
goto error;
}
}
pEntryPoints->pRegisterRdpsndDevice(pEntryPoints->rdpsnd, &fake->device);
return ret;
error:
rdpsnd_fake_free(&fake->device);
return ret;
}
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