wehub-resource-sync
131 lines
4.0 KiB
Objective-C
131 lines
4.0 KiB
Objective-C
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//
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// TLAudioRecorder.m
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// TLChat
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//
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// Created by 李伯坤 on 16/7/11.
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// Copyright © 2016年 李伯坤. All rights reserved.
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//
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#import "TLAudioRecorder.h"
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#import <AVFoundation/AVFoundation.h>
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#define PATH_RECFILE [[NSFileManager cachesPath] stringByAppendingString:@"/rec.caf"]
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@interface TLAudioRecorder () <AVAudioRecorderDelegate>
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@property (nonatomic, strong) AVAudioRecorder *recorder;
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@property (nonatomic, strong) NSTimer *timer;
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@property (nonatomic, strong) void (^volumeChangedBlock)(CGFloat valume);
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@property (nonatomic, strong) void (^completeBlock)(NSString *path, CGFloat time);
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@property (nonatomic, strong) void (^cancelBlock)();
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@end
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@implementation TLAudioRecorder
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+ (TLAudioRecorder *)sharedRecorder
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{
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static dispatch_once_t once;
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static TLAudioRecorder *audioRecorder;
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dispatch_once(&once, ^{
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audioRecorder = [[TLAudioRecorder alloc] init];
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});
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return audioRecorder;
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}
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- (void)startRecordingWithVolumeChangedBlock:(void (^)(CGFloat volume))volumeChanged
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completeBlock:(void (^)(NSString *path, CGFloat time))complete
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cancelBlock:(void (^)())cancel;
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{
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self.volumeChangedBlock = volumeChanged;
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self.completeBlock = complete;
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self.cancelBlock = cancel;
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if ([[NSFileManager defaultManager] fileExistsAtPath:PATH_RECFILE]) {
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[[NSFileManager defaultManager] removeItemAtPath:PATH_RECFILE error:nil];
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}
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[self.recorder prepareToRecord];
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[self.recorder record];
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if (self.timer && self.timer.isValid) {
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[self.timer invalidate];
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}
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__weak typeof(self) weakSelf = self;
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self.timer = [NSTimer scheduledTimerWithTimeInterval:0.5 block:^(NSTimer *timer) {
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[weakSelf.recorder updateMeters];
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float peakPower = pow(10, (0.05 * [weakSelf.recorder peakPowerForChannel:0]));
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if (weakSelf && weakSelf.volumeChangedBlock) {
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weakSelf.volumeChangedBlock(peakPower);
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}
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} repeats:YES];
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}
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- (void)stopRecording
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{
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[self.timer invalidate];
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CGFloat time = self.recorder.currentTime;
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[self.recorder stop];
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if (self.completeBlock) {
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self.completeBlock(PATH_RECFILE, time);
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self.completeBlock = nil;
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}
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}
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- (void)cancelRecording
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{
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[self.timer invalidate];
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[self.recorder stop];
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if (self.cancelBlock) {
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self.cancelBlock();
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self.cancelBlock = nil;
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}
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}
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#pragma mark - # Delegate
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//MARK: AVAudioRecorderDelegate
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- (void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder successfully:(BOOL)flag {
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if (flag) {
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// NSLog(@"录音成功");
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}
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}
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#pragma mark - # Getter
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- (AVAudioRecorder *)recorder
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{
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if (_recorder == nil) {
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AVAudioSession *session = [AVAudioSession sharedInstance];
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NSError *sessionError;
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[session setCategory:AVAudioSessionCategoryPlayAndRecord error:&sessionError];
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if(session == nil){
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DDLogError(@"Error creating session: %@", [sessionError description]);
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return nil;
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}
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else {
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[session setActive:YES error:nil];
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}
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// 设置录音的一些参数
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NSMutableDictionary *setting = [NSMutableDictionary dictionary];
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setting[AVFormatIDKey] = @(kAudioFormatAppleIMA4); // 音频格式
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setting[AVSampleRateKey] = @(44100); // 录音采样率(Hz)
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setting[AVNumberOfChannelsKey] = @(1); // 音频通道数 1 或 2
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setting[AVLinearPCMBitDepthKey] = @(8); // 线性音频的位深度
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setting[AVEncoderAudioQualityKey] = [NSNumber numberWithInt:AVAudioQualityHigh]; //录音的质量
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_recorder = [[AVAudioRecorder alloc] initWithURL:[NSURL fileURLWithPath:self.recFilePath] settings:setting error:NULL];
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_recorder.delegate = self;
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_recorder.meteringEnabled = YES;
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}
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return _recorder;
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}
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- (NSString *)recFilePath
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{
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return PATH_RECFILE;
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}
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@end
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