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99 lines
2.5 KiB
99 lines
2.5 KiB
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Pitch implementation */
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#include "sles_allinclusive.h"
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static SLresult IPitch_SetPitch(SLPitchItf self, SLpermille pitch)
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{
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SL_ENTER_INTERFACE
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IPitch *thiz = (IPitch *) self;
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// const, so no lock needed
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if (!(thiz->mMinPitch <= pitch && pitch <= thiz->mMaxPitch)) {
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result = SL_RESULT_PARAMETER_INVALID;
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} else {
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interface_lock_poke(thiz);
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thiz->mPitch = pitch;
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interface_unlock_poke(thiz);
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result = SL_RESULT_SUCCESS;
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}
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SL_LEAVE_INTERFACE
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}
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static SLresult IPitch_GetPitch(SLPitchItf self, SLpermille *pPitch)
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{
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SL_ENTER_INTERFACE
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if (NULL == pPitch) {
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result = SL_RESULT_PARAMETER_INVALID;
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} else {
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IPitch *thiz = (IPitch *) self;
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interface_lock_peek(thiz);
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SLpermille pitch = thiz->mPitch;
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interface_unlock_peek(thiz);
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*pPitch = pitch;
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result = SL_RESULT_SUCCESS;
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}
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SL_LEAVE_INTERFACE
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}
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static SLresult IPitch_GetPitchCapabilities(SLPitchItf self,
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SLpermille *pMinPitch, SLpermille *pMaxPitch)
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{
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SL_ENTER_INTERFACE
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// per spec, each is optional, and does not require that at least one must be non-NULL
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#if 0
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if (NULL == pMinPitch && NULL == pMaxPitch)
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result = SL_RESULT_PARAMETER_INVALID;
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#endif
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IPitch *thiz = (IPitch *) self;
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// const, so no lock needed
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SLpermille minPitch = thiz->mMinPitch;
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SLpermille maxPitch = thiz->mMaxPitch;
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if (NULL != pMinPitch)
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*pMinPitch = minPitch;
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if (NULL != pMaxPitch)
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*pMaxPitch = maxPitch;
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result = SL_RESULT_SUCCESS;
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SL_LEAVE_INTERFACE
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}
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static const struct SLPitchItf_ IPitch_Itf = {
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IPitch_SetPitch,
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IPitch_GetPitch,
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IPitch_GetPitchCapabilities
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};
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void IPitch_init(void *self)
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{
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IPitch *thiz = (IPitch *) self;
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thiz->mItf = &IPitch_Itf;
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thiz->mPitch = 1000;
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// const
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thiz->mMinPitch = -500;
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thiz->mMaxPitch = 2000;
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}
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