blob: 1594d7c5d32fd60bf2f6a8943d6a652fdc707da6 [file] [log] [blame]
/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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.
*/
/* OutputMix implementation */
#include "sles_allinclusive.h"
static SLresult IOutputMix_GetDestinationOutputDeviceIDs(SLOutputMixItf self,
SLint32 *pNumDevices, SLuint32 *pDeviceIDs)
{
SL_ENTER_INTERFACE
if (NULL == pNumDevices) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
result = SL_RESULT_SUCCESS;
// The application can set pDeviceIDs == NULL in order to find out number of devices.
// Then the application can allocate a proper-sized device ID array and try again.
if (NULL != pDeviceIDs) {
if (1 > *pNumDevices) {
result = SL_RESULT_BUFFER_INSUFFICIENT;
} else {
pDeviceIDs[0] = SL_DEFAULTDEVICEID_AUDIOOUTPUT;
}
}
*pNumDevices = 1;
}
SL_LEAVE_INTERFACE
}
static SLresult IOutputMix_RegisterDeviceChangeCallback(SLOutputMixItf self,
slMixDeviceChangeCallback callback, void *pContext)
{
SL_ENTER_INTERFACE
IOutputMix *thiz = (IOutputMix *) self;
interface_lock_exclusive(thiz);
thiz->mCallback = callback;
thiz->mContext = pContext;
interface_unlock_exclusive(thiz);
result = SL_RESULT_SUCCESS;
SL_LEAVE_INTERFACE
}
static SLresult IOutputMix_ReRoute(SLOutputMixItf self, SLint32 numOutputDevices,
SLuint32 *pOutputDeviceIDs)
{
SL_ENTER_INTERFACE
if ((1 != numOutputDevices) || (NULL == pOutputDeviceIDs)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
switch (pOutputDeviceIDs[0]) {
case SL_DEFAULTDEVICEID_AUDIOOUTPUT:
case DEVICE_ID_HEADSET:
result = SL_RESULT_SUCCESS;
break;
default:
result = SL_RESULT_PARAMETER_INVALID;
break;
}
}
SL_LEAVE_INTERFACE
}
static const struct SLOutputMixItf_ IOutputMix_Itf = {
IOutputMix_GetDestinationOutputDeviceIDs,
IOutputMix_RegisterDeviceChangeCallback,
IOutputMix_ReRoute
};
void IOutputMix_init(void *self)
{
IOutputMix *thiz = (IOutputMix *) self;
thiz->mItf = &IOutputMix_Itf;
thiz->mCallback = NULL;
thiz->mContext = NULL;
}