ios 视频压缩上传

#pragma mark - 获取当前时间
- (NSString *)getCurrentTime{

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
NSString *dateTime = [formatter stringFromDate:[NSDate date]];
//    NSString *str = [NSString stringWithFormat:@"%@mdxx",dateTime];
//    NSString *tokenStr = [str stringToMD5:str];
return dateTime;

}
#pragma mark - 视频压缩
/**
*  视频压缩
*
*  @param url 视频文件的url
*
*  @return 压缩后的url
*/
- (NSURL *)condenseVideoNewUrl: (NSURL *)url{
// 沙盒目录
NSString *docuPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES)[0];
NSString *destFilePath = [docuPath stringByAppendingPathComponent:[NSString stringWithFormat:@"lyh%@.MOV",[self getCurrentTime]]];
NSURL *destUrl = [NSURL fileURLWithPath:destFilePath];
//将视频文件copy到沙盒目录中
NSFileManager *manager = [NSFileManager defaultManager];
NSError *error = nil;
[manager copyItemAtURL:url toURL:destUrl error:&error];
NSLog(@"压缩前--%.2fk",[self getFileSize:destFilePath]);
// 播放视频
/*
NSURL *videoURL = [NSURL fileURLWithPath:destFilePath];
AVPlayer *player = [AVPlayer playerWithURL:videoURL];
AVPlayerLayer *playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];
playerLayer.frame = self.view.bounds;
[self.view.layer addSublayer:playerLayer];
[player play];
*/
// 进行压缩
AVAsset *asset = [AVAsset assetWithURL:destUrl];
//创建视频资源导出会话
/**
NSString *const AVAssetExportPresetLowQuality; // 低质量
NSString *const AVAssetExportPresetMediumQuality;
NSString *const AVAssetExportPresetHighestQuality; //高质量
*/

AVAssetExportSession *session = [[AVAssetExportSession alloc] initWithAsset:asset presetName:AVAssetExportPresetLowQuality];
// 创建导出的url
NSString *resultPath = [docuPath stringByAppendingPathComponent:[NSString stringWithFormat:@"lyhg%@.MOV",[self getCurrentTime]]];
session.outputURL = [NSURL fileURLWithPath:resultPath];
// 必须配置输出属性
session.outputFileType = @"com.apple.quicktime-movie";
// 导出视频
[session exportAsynchronouslyWithCompletionHandler:^{
NSLog(@"压缩后---%.2fk",[self getFileSize:resultPath]);
NSLog(@"视频导出完成");

}];

return session.outputURL;
}
// 获取视频的大小
- (CGFloat) getFileSize:(NSString *)path
{
NSFileManager *fileManager = [[NSFileManager alloc] init] ;
float filesize = -1.0;
if ([fileManager fileExistsAtPath:path]) {
NSDictionary *fileDic = [fileManager attributesOfItemAtPath:path error:nil];//获取文件的属性
unsigned long long size = [[fileDic objectForKey:NSFileSize] longLongValue];
filesize = 1.0*size/1024;
}
return filesize;
}

#pragma mark - Picker delgate

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info {

NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
NSLog(@"选取的是照片");
//        self.imageView.image = info[UIImagePickerControllerEditedImage];
// 压缩图片
NSData *fileData = UIImageJPEGRepresentation(info[UIImagePickerControllerEditedImage], 0.5);
//保存到Documents
NSString *imageStr = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];

NSString *imageFile = [imageStr stringByAppendingPathComponent:@"image.jpg"];
NSLog(@"%@",imageFile);
[fileData writeToFile:imageFile atomically:YES];

//保存至相册
UIImageWriteToSavedPhotosAlbum(info[UIImagePickerControllerEditedImage], self, @selector(image:didFinishSavingWithError:contextInfo:), nil);

// 上传图片
NSDictionary *dict = @{@"mem_id":@"600209"};
[AFNetworkTool upLoadToUrlString:@"http://www.baidu.com" parameters:dict fileData:fileData name:@"photo" fileName:@"abc.jpg" mimeType:@"image/jpeg" response:JSON progress:^(NSProgress *uploadProgress) {

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

NSLog(@"success:%@ %@",responseObject, [responseObject objectForKey:@"msg"]);

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

NSLog(@"%@",error);

}];

}else{
// 如果是视频
NSURL *url = info[UIImagePickerControllerMediaURL];
// 获取视频总时长
CGFloat lengthTime = [self getVideoLength:url];
NSLog(@"%f",lengthTime);
// 保存视频至相册 (异步线程)
NSString *urlStr = [url path];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(urlStr)) {

UISaveVideoAtPathToSavedPhotosAlbum(urlStr, self, @selector(video:didFinishSavingWithError:contextInfo:), nil);
}

});

//压缩视频
NSData *videoData = [NSData dataWithContentsOfURL:[self condenseVideoNewUrl:url]];

//视频上传

if (lengthTime >10.0f) {
NSLog(@"文件过大只允许上传10s视频");
}else {
NSDictionary *dict = @{@"username":@"syl"};

[AFNetworkTool upLoadToUrlString:@"http://www.baidu.com" parameters:dict fileData:videoData name:@"file" fileName:@"video.mov" mimeType:@"video/quicktime" response:JSON progress:^(NSProgress *uploadProgress) {

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

NSLog(@"上传成功%@",responseObject);

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

NSLog(@"%@",error);

}];

}
}

[self dismissViewControllerAnimated:YES completion:nil];
}
// 获取视频时间
- (CGFloat) getVideoLength:(NSURL *)URL
{
AVURLAsset *avUrl = [AVURLAsset assetWithURL:URL];
CMTime time = [avUrl duration];
int second = ceil(time.value/time.timescale);
return second;
}
#pragma mark 图片保存完毕的回调
- (void) image: (UIImage *) image didFinishSavingWithError:(NSError *) error contextInfo: (void *)contextIn {
NSLog(@"照片保存成功");
}

#pragma mark 视频保存完毕的回调
- (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextIn {
if (error) {
NSLog(@"保存视频过程中发生错误，错误信息:%@",error.localizedDescription);
}else{
NSLog(@"视频保存成功.");
}
}


作者：佩服许仙敢日蛇
链接：https://www.jianshu.com/p/29585a416af2
來源：简书
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