iOS视频录制(或选择)压缩及上传功能(整理)
最新做的一个功能涉及到了视频的录制、压缩及上传。根据网上诸多大神的经验,终于算是调通了,但也发现了一些问题,所以把我的经验分享一下。
首先,肯定是调用一下系统的相机或相册
代码很基本:
//选择本地视频 -(void)choosevideo { UIImagePickerController*ipc=[[UIImagePickerControlleralloc]init]; ipc.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;//sourcetype有三种分别是camera,photoLibrary和photoAlbum NSArray*availableMedia=[UIImagePickerControlleravailableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];//Camera所支持的Media格式都有哪些,共有两个分别是@"public.image",@"public.movie" ipc.mediaTypes=[NSArrayarrayWithObject:availableMedia[1]];//设置媒体类型为public.movie [selfpresentViewController:ipcanimated:YEScompletion:nil]; ipc.delegate=self;//设置委托 } //录制视频 -(void)startvideo { UIImagePickerController*ipc=[[UIImagePickerControlleralloc]init]; ipc.sourceType=UIImagePickerControllerSourceTypeCamera;//sourcetype有三种分别是camera,photoLibrary和photoAlbum NSArray*availableMedia=[UIImagePickerControlleravailableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];//Camera所支持的Media格式都有哪些,共有两个分别是@"public.image",@"public.movie" ipc.mediaTypes=[NSArrayarrayWithObject:availableMedia[1]];//设置媒体类型为public.movie [selfpresentViewController:ipcanimated:YEScompletion:nil]; ipc.videoMaximumDuration=30.0f;//30秒 ipc.delegate=self;//设置委托 }
iOS录制的视频格式是mov的,在Android和Pc上都不太好支持,所以要转换为MP4格式的,而且压缩一下,毕竟我们上传的都是小视频,不用特别清楚
为了反馈的清楚,先放两个小代码来获取视频的时长和大小,也是在网上找的,稍微改了一下。
-(CGFloat)getFileSize:(NSString*)path { NSLog(@"%@",path); NSFileManager*fileManager=[NSFileManagerdefaultManager]; floatfilesize=-1.0; if([fileManagerfileExistsAtPath:path]){ NSDictionary*fileDic=[fileManagerattributesOfItemAtPath:patherror:nil];//获取文件的属性 unsignedlonglongsize=[[fileDicobjectForKey:NSFileSize]longLongValue]; filesize=1.0*size/1024; }else{ NSLog(@"找不到文件"); } returnfilesize; }//此方法可以获取文件的大小,返回的是单位是KB。 -(CGFloat)getVideoLength:(NSURL*)URL { AVURLAsset*avUrl=[AVURLAssetassetWithURL:URL]; CMTimetime=[avUrlduration]; intsecond=ceil(time.value/time.timescale); returnsecond; }//此方法可以获取视频文件的时长。
接收并压缩
//完成视频录制,并压缩后显示大小、时长 -(void)imagePickerController:(UIImagePickerController*)pickerdidFinishPickingMediaWithInfo:(NSDictionary*)info { NSURL*sourceURL=[infoobjectForKey:UIImagePickerControllerMediaURL]; NSLog(@"%@",[NSStringstringWithFormat:@"%fs",[selfgetVideoLength:sourceURL]]); NSLog(@"%@",[NSStringstringWithFormat:@"%.2fkb",[selfgetFileSize:[sourceURLpath]]]); NSURL*newVideoUrl;//一般.mp4 NSDateFormatter*formater=[[NSDateFormatteralloc]init];//用时间给文件全名,以免重复,在测试的时候其实可以判断文件是否存在若存在,则删除,重新生成文件即可 [formatersetDateFormat:@"yyyy-MM-dd-HH:mm:ss"]; newVideoUrl=[NSURLfileURLWithPath:[NSHomeDirectory()stringByAppendingFormat:@"/Documents/output-%@.mp4",[formaterstringFromDate:[NSDatedate]]]];//这个是保存在app自己的沙盒路径里,后面可以选择是否在上传后删除掉。我建议删除掉,免得占空间。 [pickerdismissViewControllerAnimated:YEScompletion:nil]; [selfconvertVideoQuailtyWithInputURL:sourceURLoutputURL:newVideoUrlcompleteHandler:nil]; } -(void)convertVideoQuailtyWithInputURL:(NSURL*)inputURL outputURL:(NSURL*)outputURL completeHandler:(void(^)(AVAssetExportSession*))handler { AVURLAsset*avAsset=[AVURLAssetURLAssetWithURL:inputURLoptions:nil]; AVAssetExportSession*exportSession=[[AVAssetExportSessionalloc]initWithAsset:avAssetpresetName:AVAssetExportPresetMediumQuality]; //NSLog(resultPath); exportSession.outputURL=outputURL; exportSession.outputFileType=AVFileTypeMPEG4; exportSession.shouldOptimizeForNetworkUse=YES; [exportSessionexportAsynchronouslyWithCompletionHandler:^(void) { switch(exportSession.status){ caseAVAssetExportSessionStatusCancelled: NSLog(@"AVAssetExportSessionStatusCancelled"); break; caseAVAssetExportSessionStatusUnknown: NSLog(@"AVAssetExportSessionStatusUnknown"); break; caseAVAssetExportSessionStatusWaiting: NSLog(@"AVAssetExportSessionStatusWaiting"); break; caseAVAssetExportSessionStatusExporting: NSLog(@"AVAssetExportSessionStatusExporting"); break; caseAVAssetExportSessionStatusCompleted: NSLog(@"AVAssetExportSessionStatusCompleted"); NSLog(@"%@",[NSStringstringWithFormat:@"%fs",[selfgetVideoLength:outputURL]]); NSLog(@"%@",[NSStringstringWithFormat:@"%.2fkb",[selfgetFileSize:[outputURLpath]]]); //UISaveVideoAtPathToSavedPhotosAlbum([outputURLpath],self,nil,NULL);//这个是保存到手机相册 [selfalertUploadVideo:outputURL]; break; caseAVAssetExportSessionStatusFailed: NSLog(@"AVAssetExportSessionStatusFailed"); break; } }]; }
我这里用了一个提醒,因为我的服务器比较弱,不能传太大的文件
-(void)alertUploadVideo:(NSURL*)URL{ CGFloatsize=[selfgetFileSize:[URLpath]]; NSString*message; NSString*sizeString; CGFloatsizemb=size/1024; if(size<=1024){ sizeString=[NSStringstringWithFormat:@"%.2fKB",size]; }else{ sizeString=[NSStringstringWithFormat:@"%.2fMB",sizemb]; } if(sizemb<2){ [selfuploadVideo:URL]; } elseif(sizemb<=5){ message=[NSStringstringWithFormat:@"视频%@,大于2MB会有点慢,确定上传吗?",sizeString]; UIAlertController*alertController=[UIAlertControlleralertControllerWithTitle:nil message:message preferredStyle:UIAlertControllerStyleAlert]; [alertControlleraddAction:[UIAlertActionactionWithTitle:@"取消"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction*action){ [[NSNotificationCenterdefaultCenter]postNotificationName:@"refreshwebpages"object:niluserInfo:nil]; [[NSFileManagerdefaultManager]removeItemAtPath:[URLpath]error:nil];//取消之后就删除,以免占用手机硬盘空间(沙盒) }]]; [alertControlleraddAction:[UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction*action){ [selfuploadVideo:URL]; }]]; [selfpresentViewController:alertControlleranimated:YEScompletion:nil]; }elseif(sizemb>5){ message=[NSStringstringWithFormat:@"视频%@,超过5MB,不能上传,抱歉。",sizeString]; UIAlertController*alertController=[UIAlertControlleralertControllerWithTitle:nil message:message preferredStyle:UIAlertControllerStyleAlert]; [alertControlleraddAction:[UIAlertActionactionWithTitle:@"确定"style:UIAlertActionStyleDefaulthandler:^(UIAlertAction*action){ [[NSNotificationCenterdefaultCenter]postNotificationName:@"refreshwebpages"object:niluserInfo:nil]; [[NSFileManagerdefaultManager]removeItemAtPath:[URLpath]error:nil];//取消之后就删除,以免占用手机硬盘空间 }]]; [selfpresentViewController:alertControlleranimated:YEScompletion:nil]; } }
最后上上传的代码,这个是根据服务器来的,而且还是用的MKNetworking,据说已经过时了,放上来大家参考一下吧,AFNet也差不多,就是把NSData传上去。
-(void)uploadVideo:(NSURL*)URL{ //[MyToolsshowTipsWithNoDisappear:nilmessage:@"正在上传..."]; NSData*data=[NSDatadataWithContentsOfURL:URL]; MKNetworkEngine*engine=[[MKNetworkEnginealloc]initWithHostName:@"www.ylhuakai.com"customHeaderFields:nil]; NSMutableDictionary*dic=[[NSMutableDictionaryalloc]init]; NSString*updateURL; updateURL=@"/alflower/Data/sendupdate"; [dicsetValue:[NSStringstringWithFormat:@"%@",User_id]forKey:@"openid"]; [dicsetValue:[NSStringstringWithFormat:@"%@",[self.webobjectForKey:@"web_id"]]forKey:@"web_id"]; [dicsetValue:[NSStringstringWithFormat:@"%i",insertnumber]forKey:@"number"]; [dicsetValue:[NSStringstringWithFormat:@"%i",insertType]forKey:@"type"]; MKNetworkOperation*op=[engineoperationWithPath:updateURLparams:dichttpMethod:@"POST"]; [opaddData:dataforKey:@"video"mimeType:@"video/mpeg"fileName:@"aa.mp4"]; [opaddCompletionHandler:^(MKNetworkOperation*operation){ NSLog(@"[operationresponseData]-->>%@",[operationresponseString]); NSData*data=[operationresponseData]; NSDictionary*resweiboDict=[NSJSONSerializationJSONObjectWithData:dataoptions:NSJSONReadingAllowFragmentserror:nil]; NSString*status=[[resweiboDictobjectForKey:@"status"]stringValue]; NSLog(@"addfriendliststatusis%@",status); NSString*info=[resweiboDictobjectForKey:@"info"]; NSLog(@"addfriendlistinfois%@",info); //[MyToolsshowTipsWithView:nilmessage:info]; //[SVProgressHUDshowErrorWithStatus:info]; if([statusisEqualToString:@"1"]) { [[NSNotificationCenterdefaultCenter]postNotificationName:@"refreshwebpages"object:niluserInfo:nil]; [[NSFileManagerdefaultManager]removeItemAtPath:[URLpath]error:nil];//上传之后就删除,以免占用手机硬盘空间; }else { //[SVProgressHUDshowErrorWithStatus:dic[@"info"]]; } //[[NSNotificationCenterdefaultCenter]postNotificationName:@"StoryData"object:niluserInfo:nil]; }errorHandler:^(MKNetworkOperation*errorOp,NSError*err){ NSLog(@"MKNetworkrequesterror:%@",[errlocalizedDescription]); }]; [engineenqueueOperation:op]; }
以上所述是小编给大家介绍的iOS视频录制(或选择)压缩及上传功能(整理),希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对毛票票网站的支持!