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/*
* 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.
*/
/* Pitch implementation */
#include "sles_allinclusive.h"
static SLresult IPitch_SetPitch(SLPitchItf self, SLpermille pitch)
{
SL_ENTER_INTERFACE
IPitch *thiz = (IPitch *) self;
// const, so no lock needed
if (!(thiz->mMinPitch <= pitch && pitch <= thiz->mMaxPitch)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
interface_lock_poke(thiz);
thiz->mPitch = pitch;
interface_unlock_poke(thiz);
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IPitch_GetPitch(SLPitchItf self, SLpermille *pPitch)
{
SL_ENTER_INTERFACE
if (NULL == pPitch) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IPitch *thiz = (IPitch *) self;
interface_lock_peek(thiz);
SLpermille pitch = thiz->mPitch;
interface_unlock_peek(thiz);
*pPitch = pitch;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IPitch_GetPitchCapabilities(SLPitchItf self,
SLpermille *pMinPitch, SLpermille *pMaxPitch)
{
SL_ENTER_INTERFACE
// per spec, each is optional, and does not require that at least one must be non-NULL
#if 0
if (NULL == pMinPitch && NULL == pMaxPitch)
result = SL_RESULT_PARAMETER_INVALID;
#endif
IPitch *thiz = (IPitch *) self;
// const, so no lock needed
SLpermille minPitch = thiz->mMinPitch;
SLpermille maxPitch = thiz->mMaxPitch;
if (NULL != pMinPitch)
*pMinPitch = minPitch;
if (NULL != pMaxPitch)
*pMaxPitch = maxPitch;
result = SL_RESULT_SUCCESS;
SL_LEAVE_INTERFACE
}
static const struct SLPitchItf_ IPitch_Itf = {
IPitch_SetPitch,
IPitch_GetPitch,
IPitch_GetPitchCapabilities
};
void IPitch_init(void *self)
{
IPitch *thiz = (IPitch *) self;
thiz->mItf = &IPitch_Itf;
thiz->mPitch = 1000;
// const
thiz->mMinPitch = -500;
thiz->mMaxPitch = 2000;
}
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