音频 caf转MP3 到上传服务端

今天一个录制音频到服务端的功能

音频录制  

导入头文件

#import <CoreMedia/CoreMedia.h>

#import <AVFoundation/AVFoundation.h>

两个对象

@property (nonatomic, strong) AVAudioRecorder *audioRecorder;//  录音对象

@property (nonatomic, strong) AVAudioPlayer *audioPlayer;// 播放对象

@property (nonatomic ,strong) NSURL *recorderUrl;// acf本地文件url

@property (nonatomic ,strong) NSURL *mp3Url;// MP3 文件url

 //设置音频会话

    AVAudioSession *session = [AVAudioSession sharedInstance];//    获取音频会话的实例

    NSError *sessionError;

    [session setCategory:AVAudioSessionCategoryPlayAndRecord error:&sessionError];//    设置音频会话类别

    if (session == nil) {

        NSLog(@"创建音频会话失败  %@",[sessionError description]);

    }else{

        [session setActive:YES error:nil];

    }

    _recorderUrl = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingString:@"这里自己写文件名称就行"]];

    NSMutableDictionary *recordict = [NSMutableDictionary dictionary];

    [recordict setValue:[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];

    [recordict setValue:[NSNumber numberWithFloat:11025.0] forKey:AVSampleRateKey];

    [recordict setValue:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];

    [recordict setValue:[NSNumber numberWithInt:16] forKey:AVLinearPCMBitDepthKey];

    [recordict setValue:[NSNumber numberWithInt:AVAudioQualityHigh] forKey:AVEncoderAudioQualityKey];

    _audioRecorder = [[AVAudioRecorder alloc] initWithURL:_recorderUrl settings:recordict error:nil];

    _audioRecorder.delegate = self;

    _audioRecorder.meteringEnabled = YES;

    [_audioRecorder prepareToRecord];

    [_audioRecorder record];

    _audioPlayer = nil;

录制成功以后播放本地音频

 [_audioRecorder stop];

_audioRecorder = nil;

    NSError *playerError;

    _audioPlayer = [[AVAudioPlayer alloc] initWithContentsOfURL:_recorderUrl error:&playerError];

    if (_audioPlayer == nil) {

        NSLog(@"创建录音失败 %@",[_audioPlayer description]);

    }

    _audioPlayer.delegate = self;

    NSLog(@"播放录音");

    if ([_audioPlayer isPlaying]) {//   如果在播放状态下

        [_audioPlayer pause];

    }else{

        NSError *playerError;

        if (_audioPlayer == nil) {

            NSLog(@"创建录音失败 %@",[playerError description]);

        }

        NSLog(@"正在播放");

        [_audioPlayer play];

    }

到这里 播放没问题 就上传

 [_audioRecorder stop];

_audioRecorder = nil;

[_audioPlayer stop];

这里转MP3

需要导入 lame静态库 这个转MP3

参考文章：https://www.jianshu.com/p/c1bdab0ddf59

https://www.jianshu.com/p/d0645a6d8834

 这里参考上面文章 

上传到服务端

// 上传音频

+ (void)uploadRecordWithURLString:(NSString *)URLString

                 parameters:(id)parameters

                 uploadData:(NSData *)uploadData

                 uploadName:(NSString *)uploadName

                    success:(void (^)(id responseObject))success

                    failure:(void (^)(NSError *error))failure;

#pragma mark -- 上传音频 --

这里data 

 NSData *data = [[NSData alloc] initWithContentsOfFile:[NSHomeDirectory() stringByAppendingFormat:@"/Documents/%@", @"Mp3File.mp3"]];//就是本地存的MP3 文件

+ (void)uploadRecordWithURLString:(NSString *)URLString parameters:(id)parameters uploadData:(NSData *)uploadData uploadName:(NSString *)uploadName success:(void (^)(id _Nonnull))success failure:(void (^)(NSError * _Nonnull))failure {

    NSString *urlStr = [NSString stringWithFormat:@"%@%@",NETWORKINGURL,URLString];

    AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];

    manager.requestSerializer = [AFJSONRequestSerializer serializer];

    manager.responseSerializer = [AFJSONResponseSerializer serializer];

    [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"];

    [manager.requestSerializer setValue:@"multipart/form-data" forHTTPHeaderField:@"Content-Type"];

    [manager.requestSerializer setValue:[[NSUserDefaults standardUserDefaults] objectForKey:@"token"] forHTTPHeaderField:@"token"];

    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

    formatter.dateFormat = @"yyyyMMddHHmmss";

    NSString *string = [formatter stringFromDate:[NSDate date]];

    NSString *fileName = [NSString stringWithFormat:@"%@.mp3",string];

    [manager POST:urlStr parameters:parameters headers:nil constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {

        [formData appendPartWithFileData:uploadData name:uploadName fileName:fileName mimeType:@"application/octet-stream"];

    } progress:^(NSProgress * _Nonnull uploadProgress) {

    } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {

        if (success) {

            success(responseObject);

        }

    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {

        if (failure) {

            failure(error);

        }

    }];

}

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