/**
*? 多個視頻合成為一個視頻輸出到指定路徑,注意區(qū)分是否3D視頻
*
*? @param tArray? ? ? 視頻文件NSURL地址
*? @param storePath? ? 沙盒目錄下的文件夾
*? @param storeName? ? 合成的文件名字
*? @param tbool? ? ? ? 是否3D視頻,YES表示是3D視頻
*? @param successBlock 成功block
*? @param failureBlcok 失敗block
*/
-(void)mergeVideoToOneVideo:(NSArray *)tArray toStorePath:(NSString *)storePath WithStoreName:(NSString *)storeName andIf3D:(BOOL)tbool success:(void (^)(void))successBlock failure:(void (^)(void))failureBlcok
{
? ? AVMutableComposition *mixComposition = [self mergeVideostoOnevideo:tArray];
? ? NSURL *outputFileUrl = [self joinStorePaht:storePath togetherStoreName:storeName];
? ? [self storeAVMutableComposition:mixComposition withStoreUrl:outputFileUrl andVideoUrl:[tArray objectAtIndex:0] WihtName:storeName andIf3D:tbool success:successBlock failure:failureBlcok];
}
/**
*? 多個視頻合成為一個
*
*? @param array 多個視頻的NSURL地址
*
*? @return 返回AVMutableComposition
*/
-(AVMutableComposition *)mergeVideostoOnevideo:(NSArray*)array
{
? ? AVMutableComposition* mixComposition = [AVMutableComposition composition];
? ? AVMutableCompositionTrack *a_compositionVideoTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
? ? Float64 tmpDuration =0.0f;
? ? for (NSInteger i=0; i<array.count; i++)
? ? {
? ? ? ? AVURLAsset *videoAsset = [[AVURLAsset alloc]initWithURL:array[i] options:nil];
? ? ? ? CMTimeRange video_timeRange = CMTimeRangeMake(kCMTimeZero,videoAsset.duration);
? ? ? ? /**
? ? ? ? *? 依次加入每個asset
? ? ? ? *
? ? ? ? *? @param TimeRange 加入的asset持續(xù)時間
? ? ? ? *? @param Track? ? 加入的asset類型,這里都是video
? ? ? ? *? @param Time? ? ? 從哪個時間點(diǎn)加入asset,這里用了CMTime下面的CMTimeMakeWithSeconds(tmpDuration, 0),timesacle為0
? ? ? ? *
? ? ? ? */
? ? ? ? NSError *error;
? ? ? ? BOOL tbool = [a_compositionVideoTrack insertTimeRange:video_timeRange ofTrack:[[videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:CMTimeMakeWithSeconds(tmpDuration, 0) error:&error];
? ? ? ? tmpDuration += CMTimeGetSeconds(videoAsset.duration);
? ? }
? ? return mixComposition;
}
//拼接url地址
-(NSURL *)joinStorePaht:(NSString *)sPath togetherStoreName:(NSString *)sName
{
? ? NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
? ? NSString *documentPath = [paths objectAtIndex:0];
? ? NSFileManager *fileManager = [NSFileManager defaultManager];
? ? NSString *storePath = [documentPath stringByAppendingPathComponent:sPath];
? ? BOOL isExist = [fileManager fileExistsAtPath:storePath];
? ? if(!isExist){
? ? ? ? [fileManager createDirectoryAtPath:storePath withIntermediateDirectories:YES attributes:nil error:nil];
? ? }
? ? NSString *realName = [NSString stringWithFormat:@"%@.mp4", sName];
? ? storePath = [storePath stringByAppendingPathComponent:realName];
? ? NSURL *outputFileUrl = [NSURL fileURLWithPath:storePath];
? ? return outputFileUrl;
}
/**
*? 存儲合成的視頻
*
*? @param mixComposition mixComposition參數(shù)
*? @param storeUrl? ? ? 存儲的路徑
*? @param successBlock? successBlock
*? @param failureBlcok? failureBlcok
*/
-(void)storeAVMutableComposition:(AVMutableComposition*)mixComposition withStoreUrl:(NSURL *)storeUrl andVideoUrl:(NSURL *)videoUrl WihtName:(NSString *)aName andIf3D:(BOOL)tbool success:(void (^)(void))successBlock failure:(void (^)(void))failureBlcok
{
? ? __weak typeof(self) welf = self;
? ? AVAssetExportSession* _assetExport = [[AVAssetExportSession alloc] initWithAsset:mixComposition presetName:AVAssetExportPresetHighestQuality];
? ? _assetExport.outputFileType = @"com.apple.quicktime-movie";
? ? //? ? _assetExport.outputFileType = @"public.mpeg-4";
? ? _assetExport.outputURL = storeUrl;
? ? [_assetExport exportAsynchronouslyWithCompletionHandler:^{
? ? ? ? dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
? ? ? ? ? ? //在系統(tǒng)相冊存儲一份
? ? ? ? ? ? UISaveVideoAtPathToSavedPhotosAlbum([storeUrl path], nil, nil, nil);
? ? ? ? ? ? //? ? ? ? ? ? 在本地沙盒中存儲一份,存儲成功返回YES,如果不想存到沙盒,直接返回調(diào)用<span style="font-family: Arial, Helvetica, sans-serif;">successBlock();</span>
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? BOOL successful = [welf.photoStore storeVideoImageScale:videoUrl WihtName:aName andIf3D:tbool];
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? dispatch_async(dispatch_get_main_queue(), ^{
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? ? ? if (successful) {
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? successBlock();
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? ? ? }else
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? ? ? {
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? failureBlcok();
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? ? ? }
? ? ? ? ? ? //? ? ? ? ? ? ? ? ? ? ? ? });
? ? ? ? ? ? successBlock();
? ? ? ? });
? ? }];
}
