Files
platform-external-webrtc/webrtc/modules/audio_device/android/opensles_common.h
henrika b26198972c Adding support for OpenSL ES output in native WebRTC
BUG=4573,2982,2175,3590
TEST=modules_unittests --gtest_filter=AudioDevice*, AppRTCDemo and WebRTCDemo

Summary:

- Removes dependency of the 'enable_android_opensl' compiler flag.
  Instead, OpenSL ES is always supported, and will enabled for devices that
  supports low-latency output.
- WebRTC no longer supports OpenSL ES for the input/recording side.
- Removes old code and demos using OpenSL ES for audio input.
- Improves accuracy of total delay estimates (better AEC performance).
- Reduces roundtrip audio latency; especially when OpenSL can be used.

Performance verified on: Nexus 5, 6, 7 and 9. Samsung Galaxy S4 and S6.
Android One device.

R=magjed@webrtc.org, phoglund@webrtc.org, tommi@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51759004

Cr-Commit-Position: refs/heads/master@{#9208}
2015-05-18 14:49:04 +00:00

55 lines
1.3 KiB
C++

/*
* Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_OPENSLES_COMMON_H_
#define WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_OPENSLES_COMMON_H_
#include <SLES/OpenSLES.h>
#include "webrtc/base/checks.h"
namespace webrtc {
SLDataFormat_PCM CreatePcmConfiguration(int sample_rate);
// Helper class for using SLObjectItf interfaces.
template <typename SLType, typename SLDerefType>
class ScopedSLObject {
public:
ScopedSLObject() : obj_(nullptr) {}
~ScopedSLObject() { Reset(); }
SLType* Receive() {
DCHECK(!obj_);
return &obj_;
}
SLDerefType operator->() { return *obj_; }
SLType Get() const { return obj_; }
void Reset() {
if (obj_) {
(*obj_)->Destroy(obj_);
obj_ = nullptr;
}
}
private:
SLType obj_;
};
typedef ScopedSLObject<SLObjectItf, const SLObjectItf_*> ScopedSLObjectItf;
} // namespace webrtc_opensl
#endif // WEBRTC_MODULES_AUDIO_DEVICE_ANDROID_OPENSLES_COMMON_H_