DOUAudioSpatialAnalyzer.m
757 字节
/* vim: set ft=objc fenc=utf-8 sw=2 ts=2 et: */
/*
* DOUAudioStreamer - A Core Audio based streaming audio player for iOS/Mac:
*
* https://github.com/douban/DOUAudioStreamer
*
* Copyright 2013-2016 Douban Inc. All rights reserved.
*
* Use and distribution licensed under the BSD license. See
* the LICENSE file for full text.
*
* Authors:
* Chongyu Zhu <i@lembacon.com>
*
*/
#import "DOUAudioSpatialAnalyzer.h"
#import "DOUAudioAnalyzer_Private.h"
@implementation DOUAudioSpatialAnalyzer
- (void)processChannelVectors:(const float *)vectors toLevels:(float *)levels
{
for (size_t i = 0; i < kDOUAudioAnalyzerLevelCount; ++i) {
levels[i] = vectors[kDOUAudioAnalyzerCount * i / kDOUAudioAnalyzerLevelCount];
}
}
@end