63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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/*
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* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_AUDIO_DEVICE_ANDROID_OPENSLES_COMMON_H_
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#define MODULES_AUDIO_DEVICE_ANDROID_OPENSLES_COMMON_H_
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#include <SLES/OpenSLES.h>
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#include <stddef.h>
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#include "rtc_base/checks.h"
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namespace webrtc {
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// Returns a string representation given an integer SL_RESULT_XXX code.
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// The mapping can be found in <SLES/OpenSLES.h>.
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const char* GetSLErrorString(size_t code);
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// Configures an SL_DATAFORMAT_PCM structure based on native audio parameters.
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SLDataFormat_PCM CreatePCMConfiguration(size_t channels,
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int sample_rate,
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size_t bits_per_sample);
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// Helper class for using SLObjectItf interfaces.
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template <typename SLType, typename SLDerefType>
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class ScopedSLObject {
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public:
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ScopedSLObject() : obj_(nullptr) {}
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~ScopedSLObject() { Reset(); }
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SLType* Receive() {
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RTC_DCHECK(!obj_);
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return &obj_;
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}
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SLDerefType operator->() { return *obj_; }
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SLType Get() const { return obj_; }
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void Reset() {
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if (obj_) {
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(*obj_)->Destroy(obj_);
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obj_ = nullptr;
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}
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}
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private:
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SLType obj_;
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};
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typedef ScopedSLObject<SLObjectItf, const SLObjectItf_*> ScopedSLObjectItf;
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} // namespace webrtc
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#endif // MODULES_AUDIO_DEVICE_ANDROID_OPENSLES_COMMON_H_
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