iOS上传视频到服务器

//视频转换为MP4
//转码操作...
_hud.mode = MBProgressHUDModeIndeterminate;
_hud.labelText = @"转码中...";
AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:_filePathURL  options:nil];
NSDateFormatter* formater = [[NSDateFormatter alloc] init];
[formater setDateFormat:@"yyyyMMddHHmmss"];
_fileName = [NSString stringWithFormat:@"output-%@.mp4",[formater stringFromDate:[NSDate date]]];
_outfilePath = [NSHomeDirectory() stringByAppendingFormat:@"/Documents/%@", _fileName];
NSArray *compatiblePresets = [AVAssetExportSession exportPresetsCompatibleWithAsset:avAsset];

if ([compatiblePresets containsObject:AVAssetExportPresetMediumQuality])
{
MyLog(@"outPath = %@",_outfilePath);
AVAssetExportSession *exportSession = [[AVAssetExportSession alloc]initWithAsset:avAsset presetName:AVAssetExportPresetMediumQuality];
exportSession.outputURL = [NSURL fileURLWithPath:_outfilePath];
exportSession.outputFileType = AVFileTypeMPEG4;
[exportSession exportAsynchronouslyWithCompletionHandler:^{
if ([exportSession status] == AVAssetExportSessionStatusCompleted) {
MyLog(@"AVAssetExportSessionStatusCompleted---转换成功");
_filePath = _outfilePath;
_filePathURL = [NSURL URLWithString:[NSString stringWithFormat:@"file://%@",_outfilePath]];
MyLog(@"转换完成_filePath = %@\n_filePathURL = %@",_filePath,_filePathURL);
//获取大小和长度
[self SetViewText];
[self uploadNetWorkWithParam:@{@"contenttype":@"application/octet-stream",@"discription":description}];
}else{
MyLog(@"转换失败,值为:%li,可能的原因:%@",(long)[exportSession status],[[exportSession error] localizedDescription]);
[_hud hide:YES];
[MyHelper showAlertWith:nil txt:@"转换失败,请重试"];
}
}];

}

#pragma mark - 开始上传

-(void)uploadNetWorkWithParam:(NSDictionary*)dict
{
MyLog(@"开始上传_filePath = %@\n_filePathURL = %@",_filePath,_filePathURL);
AFHTTPRequestSerializer *ser=[[AFHTTPRequestSerializer alloc]init];
NSMutableURLRequest *request =
[ser multipartFormRequestWithMethod:@"POST"
URLString:[NSString stringWithFormat:@"%@%@",kBaseUrl,kVideoUploadUrl]
parameters:@{@"path":@"show",@"key":_key,@"discription":dict[@"discription"],@"isimage":@(_isImage)}
constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
[formData appendPartWithFileURL:_filePathURL name:@"file" fileName:_fileName mimeType:dict[@"contenttype"] error:nil];
if (!_isImage) {
[formData appendPartWithFileURL:_path2Url name:@"tmp" fileName:@"tmp.PNG" mimeType:@"image/png" error:nil];
}
} error:nil];
//@"image/png"   @"application/octet-stream"  mimeType
AFURLSessionManager *manager = [[AFURLSessionManager alloc] initWithSessionConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
NSProgress *progress = nil;
NSURLSessionUploadTask *uploadTask = [manager uploadTaskWithStreamedRequest:request progress:&progress completionHandler:^(NSURLResponse *response, id responseObject, NSError *error) {
if (error) {
MyLog(@"request = %@", request );
MyLog(@"response = %@", response );
MyLog(@"Error: %@", error );
[_hud hide:YES];
CXAlertView *alert=[[CXAlertView alloc]initWithTitle:NSLocalizedString(@"Warning", nil)
message:NSLocalizedString(@"Upload Failed",nil)
cancelButtonTitle:NSLocalizedString(@"Iknow", nil)];
alert.showBlurBackground = NO;
[alert show];
} else {
MyLog(@"%@ %@", response, responseObject);
NSDictionary *backDict=(NSDictionary *)responseObject;
if ([backDict[@"success"] boolValue] != NO) {
_hud.labelText = NSLocalizedString(@"Updating", nil);
[self UpdateResxDateWithDict:backDict discription:dict[@"discription"]];
[_hud hide:YES];
}else{
[_hud hide:YES];
[MyHelper showAlertWith:nil txt:backDict[@"msg"]];
}
}
[progress removeObserver:self
forKeyPath:@"fractionCompleted"
context:NULL];
}];
[progress addObserver:self
forKeyPath:@"fractionCompleted"
options:NSKeyValueObservingOptionNew
context:NULL];
[progress setUserInfoObject:@"someThing" forKey:@"Y.X."];
[uploadTask resume];

}

#pragma mark - 清除documents中的视频文件
-(void)ClearMovieFromDoucments{
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSArray *contents = [fileManager contentsOfDirectoryAtPath:documentsDirectory error:NULL];
NSEnumerator *e = [contents objectEnumerator];
NSString *filename;
while ((filename = [e nextObject])) {
MyLog(@"%@",filename);
if ([filename isEqualToString:@"tmp.PNG"]) {
MyLog(@"删除%@",filename);
[fileManager removeItemAtPath:[documentsDirectory stringByAppendingPathComponent:filename] error:NULL];
continue;
}
if ([[[filename pathExtension] lowercaseString] isEqualToString:@"mp4"]||
[[[filename pathExtension] lowercaseString] isEqualToString:@"mov"]||
[[[filename pathExtension] lowercaseString] isEqualToString:@"png"]) {
MyLog(@"删除%@",filename);
[fileManager removeItemAtPath:[documentsDirectory stringByAppendingPathComponent:filename] error:NULL];
}
}
}