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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.
*/
/* PlaybackRate implementation */
#include "sles_allinclusive.h"
static SLresult IPlaybackRate_SetRate(SLPlaybackRateItf self, SLpermille rate)
{
SL_ENTER_INTERFACE
IPlaybackRate *thiz = (IPlaybackRate *) self;
// const, so no lock needed
if (!(thiz->mMinRate <= rate && rate <= thiz->mMaxRate)) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
interface_lock_exclusive(thiz);
#ifdef ANDROID
CAudioPlayer *ap = (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(thiz)) ?
(CAudioPlayer *) thiz->mThis : NULL;
if (NULL != ap) {
result = android_audioPlayer_setPlaybackRateAndConstraints(ap, rate, thiz->mProperties);
} else {
result = SL_RESULT_FEATURE_UNSUPPORTED;
}
#else
result = SL_RESULT_SUCCESS;
#endif
if (SL_RESULT_SUCCESS == result) {
thiz->mRate = rate;
}
interface_unlock_exclusive(thiz);
}
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_GetRate(SLPlaybackRateItf self, SLpermille *pRate)
{
SL_ENTER_INTERFACE
if (NULL == pRate) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IPlaybackRate *thiz = (IPlaybackRate *) self;
interface_lock_shared(thiz);
SLpermille rate = thiz->mRate;
interface_unlock_shared(thiz);
*pRate = rate;
result = SL_RESULT_SUCCESS;
}
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_SetPropertyConstraints(SLPlaybackRateItf self, SLuint32 constraints)
{
SL_ENTER_INTERFACE
IPlaybackRate *thiz = (IPlaybackRate *) self;
if (constraints & ~(SL_RATEPROP_SILENTAUDIO | SL_RATEPROP_STAGGEREDAUDIO |
SL_RATEPROP_NOPITCHCORAUDIO | SL_RATEPROP_PITCHCORAUDIO)) {
result = SL_RESULT_PARAMETER_INVALID;
// const, so no lock needed
} else if (!(thiz->mCapabilities & constraints)) {
result = SL_RESULT_FEATURE_UNSUPPORTED;
} else {
interface_lock_exclusive(thiz);
#ifdef ANDROID
// verify property support before storing
CAudioPlayer *ap = (SL_OBJECTID_AUDIOPLAYER == InterfaceToObjectID(thiz)) ?
(CAudioPlayer *) thiz->mThis : NULL;
if (NULL != ap) {
result = android_audioPlayer_setPlaybackRateAndConstraints(ap, thiz->mRate,
constraints);
} else {
result = SL_RESULT_FEATURE_UNSUPPORTED;
}
#else
result = SL_RESULT_SUCCESS;
#endif
if (result == SL_RESULT_SUCCESS) {
thiz->mProperties = constraints;
}
interface_unlock_exclusive(thiz);
}
SL_LEAVE_INTERFACE
}
static SLresult IPlaybackRate_GetProperties(SLPlaybackRateItf self, SLuint32 *pProperties)
{
SL_ENTER_INTERFACE
if (NULL == pProperties) {
result = SL_RESULT_PARAMETER_INVALID;
} else {
IPlaybackRate *thiz = (IPlaybackRate *) self;
interface_lock_shared(thiz);
SLuint32 properties = thiz->mProperties;
interface_unlock_shared(thiz);
*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 *thiz = (IPlaybackRate *) self;
SLuint32 capabilities;
// const, so no lock needed
if (!(thiz->mMinRate <= rate && rate <= thiz->mMaxRate)) {
capabilities = 0;
result = SL_RESULT_PARAMETER_INVALID;
} else {
capabilities = thiz->mCapabilities;
result = SL_RESULT_SUCCESS;
}
*pCapabilities = capabilities;
}
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 *thiz = (IPlaybackRate *) self;
// const, so no lock needed
SLpermille minRate = thiz->mMinRate;
SLpermille maxRate = thiz->mMaxRate;
SLpermille stepSize = thiz->mStepSize;
SLuint32 capabilities = thiz->mCapabilities;
*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 *thiz = (IPlaybackRate *) self;
thiz->mItf = &IPlaybackRate_Itf;
thiz->mProperties = SL_RATEPROP_NOPITCHCORAUDIO;
thiz->mRate = 1000;
// const after initialization; these are default values which may be overwritten
// during object creation but will not be modified after that
// (e.g. for an Android AudioPlayer, see sles_to_android_audioPlayerCreate)
thiz->mMinRate = 1000;
thiz->mMaxRate = 1000;
thiz->mStepSize = 0;
thiz->mCapabilities = SL_RATEPROP_NOPITCHCORAUDIO;
}