/*
* 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.
*/
/* PlaybackRate implementation */
#include "sles_allinclusive.h"
static SLresult IPlaybackRate_SetRate(SLPlaybackRateItf self, SLpermille rate)
{
SL_ENTER_INTERFACE
IPlaybackRate *this = (IPlaybackRate *) self;
// const, so no lock needed
if (!(this->mMinRate <= rate && rate <= this->mMaxRate)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
interface_lock_exclusive(this);
this->mRate = rate;
interface_unlock_exclusive(this);
#ifdef ANDROID
CAudioPlayer *ap = (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(this)) ?
(CAudioPlayer *) this->mThis : NULL;
if (NULL != ap) {
result = android_audioPlayer_setPlayRate(ap, rate, true);
} else {
result = SL_RESULT_PARAMETER_INVALID;
}
#else
result = SL_RESULT_SUCCESS;
#endif
}
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_GetRate(SLPlaybackRateItf self, SLpermille *pRate)
{
SL_ENTER_INTERFACE
if (NULL == pRate) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IPlaybackRate *this = (IPlaybackRate *) self;
interface_lock_peek(this);
SLpermille rate = this->mRate;
interface_unlock_peek(this);
*pRate = rate;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_SetPropertyConstraints(SLPlaybackRateItf self, SLuint32 constraints)
{
SL_ENTER_INTERFACE
IPlaybackRate *this = (IPlaybackRate *) self;
this->mProperties = constraints;
#ifdef ANDROID
// verify property support before storing
CAudioPlayer *ap = (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(this)) ?
(CAudioPlayer *) this->mThis : NULL;
if (NULL != ap) {
result = android_audioPlayer_setPlaybackRateBehavior(ap, constraints);
} else {
result = SL_RESULT_PARAMETER_INVALID;
}
#else
result = SL_RESULT_SUCCESS;
#endif
interface_lock_poke(this);
if (result == SL_RESULT_SUCCESS) {
this->mProperties = constraints;
}
interface_unlock_poke(this);
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_GetProperties(SLPlaybackRateItf self, SLuint32 *pProperties)
{
SL_ENTER_INTERFACE
if (NULL == pProperties) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IPlaybackRate *this = (IPlaybackRate *) self;
interface_lock_peek(this);
SLuint32 properties = this->mProperties;
interface_unlock_peek(this);
*pProperties = properties;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_GetCapabilitiesOfRate(SLPlaybackRateItf self,
SLpermille rate, SLuint32 *pCapabilities)
{
SL_ENTER_INTERFACE
if (NULL == pCapabilities) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IPlaybackRate *this = (IPlaybackRate *) self;
// const, so no lock needed
if (!(this->mMinRate <= rate && rate <= this->mMaxRate)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
SLuint32 capabilities = 0;
#ifdef ANDROID
CAudioPlayer *ap = (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(this)) ?
(CAudioPlayer *) this->mThis : NULL;
if (NULL != ap) {
android_audioPlayer_getCapabilitiesOfRate(ap, &capabilities);
}
#else
capabilities = this->mCapabilities;
#endif
*pCapabilities = capabilities;
result = SL_RESULT_SUCCESS;
}
}
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_GetRateRange(SLPlaybackRateItf self, SLuint8 index,
SLpermille *pMinRate, SLpermille *pMaxRate, SLpermille *pStepSize, SLuint32 *pCapabilities)
{
SL_ENTER_INTERFACE
// only one range
if (NULL == pMinRate || NULL == pMaxRate || NULL == pStepSize || NULL == pCapabilities ||
(0 < index)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IPlaybackRate *this = (IPlaybackRate *) self;
interface_lock_shared(this);
SLpermille minRate = this->mMinRate;
SLpermille maxRate = this->mMaxRate;
SLpermille stepSize = this->mStepSize;
SLuint32 capabilities = this->mCapabilities;
interface_unlock_shared(this);
*pMinRate = minRate;
*pMaxRate = maxRate;
*pStepSize = stepSize;
*pCapabilities = capabilities;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static const struct SLPlaybackRateItf_ IPlaybackRate_Itf = {
IPlaybackRate_SetRate,
IPlaybackRate_GetRate,
IPlaybackRate_SetPropertyConstraints,
IPlaybackRate_GetProperties,
IPlaybackRate_GetCapabilitiesOfRate,
IPlaybackRate_GetRateRange
};
void IPlaybackRate_init(void *self)
{
IPlaybackRate *this = (IPlaybackRate *) self;
this->mItf = &IPlaybackRate_Itf;
this->mProperties = SL_RATEPROP_NOPITCHCORAUDIO;
this->mRate = 1000;
// const
this->mMinRate = 500;
this->mMaxRate = 2000;
this->mStepSize = 0;
#ifdef ANDROID
// for an AudioPlayer, mCapabilities will be initialized in sles_to_android_audioPlayerCreate
#endif
// The generic implementation sets no capabilities because the generic
// implementation alone doesn't support any.
this->mCapabilities = 0;
// SL_RATEPROP_SILENTAUDIO | SL_RATEPROP_STAGGEREDAUDIO | SL_RATEPROP_NOPITCHCORAUDIO |
// SL_RATEPROP_PITCHCORAUDIO
}