// // MGTCVideoRecordManager.m // BuguLive // // Created by 宋晨光 on 2019/7/4. // Copyright © 2019年 xfg. All rights reserved. // #import "MGTCVideoRecordManager.h" @implementation MGTCVideoRecordManager /** 截取视频的背景音乐 */ + (void)dM_VideoManager_getBackgroundMiusicWithVideoUrl:(NSURL*)videoUrl newFile:(NSString*)newFile completion:(void(^)(NSString*data))completionHandle{ // newFile = [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, true) lastObject] stringByAppendingPathComponent:[NSString stringWithFormat:@"%ld_compressedVideo.m4a",time(NULL)]]; // 1562308959 // 1562309212 // 创建输出路径 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; newFile = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat:@"mergeAudio%ld.m4a",time(NULL)]]; // arc4random() % 1000]]; NSData *data = [NSData dataWithContentsOfURL:videoUrl]; if (data) { NSLog(ASLocalizedString(@"视频data存在")); } // /var/mobile/Containers/Data/Application/10443AD4-5FB7-43B8-A506-A870B9B01B13/Documents/mergeAudio-295.m4a AVURLAsset* videoAsset = [[AVURLAsset alloc] initWithURL:videoUrl options:nil]; NSArray *keys = @[@"duration",@"tracks"]; [videoAsset loadValuesAsynchronouslyForKeys:keys completionHandler:^{ NSError*error =nil; AVKeyValueStatus status = [videoAsset statusOfValueForKey:@"tracks"error:&error]; if(status ==AVKeyValueStatusLoaded) {//数据加载完成 // 1 - Create AVMutableComposition object. This object will hold your AVMutableCompositionTrack instances. //创建一个AVMutableComposition实例 AVMutableComposition *mixComposition = [[AVMutableComposition alloc] init]; // 2 - Video track //创建一个轨道,类型是AVMediaTypeAudio AVMutableCompositionTrack *firstTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid]; //获取videoAsset中的音频,插入轨道 // NSLog(@"%f",videoAsset); // 视频时间范围 [firstTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, videoAsset.duration) ofTrack:[[videoAsset tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0] atTime:kCMTimeZero error:nil]; //创建输出对象 AVAssetExportSession *exporter = [[AVAssetExportSession alloc]initWithAsset:mixComposition presetName:AVAssetExportPresetPassthrough]; //输出为M4A音频 NSURL *a = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:YES error:&error]; NSURL *url = [a URLByAppendingPathComponent:@"filename.m4a"]; NSString *filePath = [url absoluteString]; // file:///var/mobile/Containers/Data/Application/C92D2683-EEC2-4287-B475-A2D11E27E6A2/Documents/filename.m4a // file:///var/mobile/Containers/Data/Application/C92D2683-EEC2-4287-B475-A2D11E27E6A2/Documents/filename.m4a NSLog(@"filePath%@",filePath); if ([[NSFileManager defaultManager] fileExistsAtPath:filePath]){ [[NSFileManager defaultManager]removeItemAtPath:filePath error:nil]; NSLog(@"filePath123456%@",filePath); } exporter.outputURL = [NSURL URLWithString:newFile]; // url; // [NSURL URLWithString:newFile]; exporter.outputFileType = @"com.apple.m4a-audio"; // AVFileTypeAppleM4A; exporter.shouldOptimizeForNetworkUse = YES; [exporter exportAsynchronouslyWithCompletionHandler:^(void){    dispatch_async(dispatch_get_main_queue(), ^{ switch (exporter.status) { case AVAssetExportSessionStatusCompleted:{ completionHandle(newFile); } break; case AVAssetExportSessionStatusFailed: NSLog(ASLocalizedString(@"导出失败：Failed:%@"),exporter.error); completionHandle(@""); break; case AVAssetExportSessionStatusCancelled: NSLog(ASLocalizedString(@"导出取消：Canceled:%@"),exporter.error); completionHandle(@""); break; default: break; } }); }]; }else{ NSLog(ASLocalizedString(@"音轨提取失败")); completionHandle(@""); } }]; } /** 截取视频的无声音视频 */ + (void)dM_VideoManager_RemoveVideoWithVideoUrl:(NSURL*)videoUrl newFile:(NSString*)newFile completion:(void(^)(NSString*data))completionHandle{ AVMutableComposition *mutableComposition = [AVMutableComposition composition]; AVMutableCompositionTrack *compositionVideoTrack = [mutableComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid]; AVAssetTrack *videoTrack = nil; AVAssetTrack *assetAudioTrack = nil; AVURLAsset* asset = [[AVURLAsset alloc] initWithURL:videoUrl options:nil]; CGFloat _sound = 0; if([asset tracksWithMediaType:AVMediaTypeVideo].count!=0){ videoTrack = [[asset tracksWithMediaType:AVMediaTypeVideo]objectAtIndex:0]; } CMTimeRange timeRange = CMTimeRangeMake(kCMTimeZero, videoTrack.timeRange.duration); if(videoTrack!=nil){ [compositionVideoTrack insertTimeRange:timeRange ofTrack:videoTrack atTime:kCMTimeZero error:nil]; } //测试改变原声 if ([[asset tracksWithMediaType:AVMediaTypeAudio] count] != 0) { assetAudioTrack = [asset tracksWithMediaType:AVMediaTypeAudio][0]; } if (assetAudioTrack != nil) { AVMutableCompositionTrack *compositionAudioTrack = [mutableComposition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid]; [compositionAudioTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, assetAudioTrack.timeRange.duration) ofTrack:assetAudioTrack atTime:kCMTimeZero error:nil]; AVMutableAudioMixInputParameters *mixParameters = [AVMutableAudioMixInputParameters audioMixInputParametersWithTrack:compositionAudioTrack]; [mixParameters setVolumeRampFromStartVolume:_sound toEndVolume:_sound timeRange:CMTimeRangeMake(kCMTimeZero,assetAudioTrack.timeRange.duration)]; AVMutableAudioMix *mutableAudioMix = [AVMutableAudioMix audioMix]; mutableAudioMix.inputParameters = @[mixParameters]; } //创建输出路径 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; newFile = [documentsDirectory stringByAppendingPathComponent: [NSString stringWithFormat:@"mergeVideos-%ld.mov",time(NULL)]]; AVURLAsset* videoAsset = [[AVURLAsset alloc] initWithURL:videoUrl options:nil]; NSArray *keys = @[@"duration",@"tracks"]; //导出 AVAssetExportSession *exporter = [[AVAssetExportSession alloc] initWithAsset:[mutableComposition copy] presetName:AVAssetExportPreset1280x720]; // } // exporter.videoComposition = mutableVideoComposition; exporter.audioMix = [AVMutableAudioMix audioMix]; exporter.outputURL = [NSURL fileURLWithPath:newFile]; exporter.outputFileType = AVFileTypeQuickTimeMovie; exporter.shouldOptimizeForNetworkUse = YES; [exporter exportAsynchronouslyWithCompletionHandler:^(void){ switch (exporter.status) { case AVAssetExportSessionStatusCompleted:{ NSLog(@"AVAssetExportSessionStatusCompleted%@",newFile); completionHandle(newFile); } break; case AVAssetExportSessionStatusFailed: NSLog(ASLocalizedString(@"导出失败：Failed:%@"),exporter.error); break; case AVAssetExportSessionStatusCancelled: NSLog(ASLocalizedString(@"导出取消：Canceled:%@"),exporter.error); break; default: break; } }]; [videoAsset loadValuesAsynchronouslyForKeys:keys completionHandler:^{ NSError*error =nil; AVKeyValueStatus status = [videoAsset statusOfValueForKey:@"tracks"error:&error]; if(status ==AVKeyValueStatusLoaded) {//数据加载完成 // 1 - Create AVMutableComposition object. This object will hold your AVMutableCompositionTrack instances. //创建一个AVMutableComposition实例 AVMutableComposition *mixComposition = [[AVMutableComposition alloc] init]; // 2 - Video track //创建一个轨道,类型是AVMediaTypeVideo AVMutableCompositionTrack *firstTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid]; //获取videoAsset中的音频,插入轨道 // NSLog(@"%f",videoAsset); [firstTrack insertTimeRange:CMTimeRangeMake(kCMTimeZero, videoAsset.duration) ofTrack:[[videoAsset tracksWithMediaType:AVMediaTypeAudio] objectAtIndex:0] atTime:kCMTimeZero error:nil]; //创建输出对象 AVAssetExportSession *exporter = [[AVAssetExportSession alloc]initWithAsset:mixComposition presetName:AVAssetExportPresetAppleM4A];//输出为M4A音频 exporter.outputURL = [NSURL fileURLWithPath:newFile]; // [NSURL URLWithString:newFile]; exporter.outputFileType = @"com.apple.m4a-audio"; // AVFileTypeAppleM4A; exporter.shouldOptimizeForNetworkUse = YES; [exporter exportAsynchronouslyWithCompletionHandler:^{     dispatch_async(dispatch_get_main_queue(), ^{ switch (exporter.status) { case AVAssetExportSessionStatusCompleted:{ completionHandle(newFile); } break; case AVAssetExportSessionStatusFailed: NSLog(ASLocalizedString(@"导出失败：Failed:%@"),exporter.error); break; case AVAssetExportSessionStatusCancelled: NSLog(ASLocalizedString(@"导出取消：Canceled:%@"),exporter.error); break; default: break; } }); }]; } }]; } ///使用AVfoundation添加水印 + (void)AVsaveVideoPath:(NSURL*)videoPath WithWaterImg:(UIImage*)img WithCoverImage:(UIImage*)coverImg WithQustion:(NSString*)question WithFileName:(NSString*)fileName completion:(void(^)(NSString*data))completionHandle; { if (!videoPath) { return; } //1 创建AVAsset实例 AVAsset包含了video的所有信息 self.videoUrl输入视频的路径 //封面图片 NSDictionary *opts = [NSDictionary dictionaryWithObject:@(YES) forKey:AVURLAssetPreferPreciseDurationAndTimingKey]; AVURLAsset *videoAsset = [AVURLAsset URLAssetWithURL:videoPath options:opts]; //初始化视频媒体文件 NSData *data = [NSData dataWithContentsOfURL:videoPath]; CMTime startTime = CMTimeMakeWithSeconds(0.2, 600); CMTime endTime = CMTimeMakeWithSeconds(videoAsset.duration.value/videoAsset.duration.timescale-0.2, videoAsset.duration.timescale); //声音采集 AVURLAsset * audioAsset = [[AVURLAsset alloc] initWithURL:videoPath options:opts]; //2 创建AVMutableComposition实例. apple developer 里边的解释 【AVMutableComposition is a mutable subclass of AVComposition you use when you want to create a new composition from existing assets. You can add and remove tracks, and you can add, remove, and scale time ranges.】 AVMutableComposition *mixComposition = [[AVMutableComposition alloc] init]; //3 视频通道 工程文件中的轨道，有音频轨、视频轨等，里面可以插入各种对应的素材 AVMutableCompositionTrack *videoTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid]; //把视频轨道数据加入到可变轨道中 这部分可以做视频裁剪TimeRange [videoTrack insertTimeRange:CMTimeRangeMake(startTime, endTime) ofTrack:[[videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0] atTime:kCMTimeZero error:nil]; //音频通道 AVMutableCompositionTrack * audioTrack = [mixComposition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid]; //音频采集通道 AVAssetTrack * audioAssetTrack = [[audioAsset tracksWithMediaType:AVMediaTypeAudio] firstObject]; [audioTrack insertTimeRange:CMTimeRangeMake(startTime, endTime) ofTrack:audioAssetTrack atTime:kCMTimeZero error:nil]; //3.1 AVMutableVideoCompositionInstruction 视频轨道中的一个视频，可以缩放、旋转等 AVMutableVideoCompositionInstruction *mainInstruction = [AVMutableVideoCompositionInstruction videoCompositionInstruction]; mainInstruction.timeRange = CMTimeRangeMake(kCMTimeZero, videoTrack.timeRange.duration); // 3.2 AVMutableVideoCompositionLayerInstruction 一个视频轨道，包含了这个轨道上的所有视频素材 AVMutableVideoCompositionLayerInstruction *videolayerInstruction = [AVMutableVideoCompositionLayerInstruction videoCompositionLayerInstructionWithAssetTrack:videoTrack]; AVAssetTrack *videoAssetTrack = [[videoAsset tracksWithMediaType:AVMediaTypeVideo] objectAtIndex:0]; // UIImageOrientation videoAssetOrientation_ = UIImageOrientationUp; BOOL isVideoAssetPortrait_ = NO; CGAffineTransform videoTransform = videoAssetTrack.preferredTransform; if (videoTransform.a == 0 && videoTransform.b == 1.0 && videoTransform.c == -1.0 && videoTransform.d == 0) { // videoAssetOrientation_ = UIImageOrientationRight; isVideoAssetPortrait_ = YES; } if (videoTransform.a == 0 && videoTransform.b == -1.0 && videoTransform.c == 1.0 && videoTransform.d == 0) { // videoAssetOrientation_ = UIImageOrientationLeft; isVideoAssetPortrait_ = YES; } // if (videoTransform.a == 1.0 && videoTransform.b == 0 && videoTransform.c == 0 && videoTransform.d == 1.0) { // videoAssetOrientation_ = UIImageOrientationUp; // } // if (videoTransform.a == -1.0 && videoTransform.b == 0 && videoTransform.c == 0 && videoTransform.d == -1.0) { // videoAssetOrientation_ = UIImageOrientationDown; // } [videolayerInstruction setTransform:videoAssetTrack.preferredTransform atTime:kCMTimeZero]; [videolayerInstruction setOpacity:0.0 atTime:endTime]; // 3.3 - Add instructions mainInstruction.layerInstructions = [NSArray arrayWithObjects:videolayerInstruction,nil]; //AVMutableVideoComposition：管理所有视频轨道，可以决定最终视频的尺寸，裁剪需要在这里进行 AVMutableVideoComposition *mainCompositionInst = [AVMutableVideoComposition videoComposition]; CGSize naturalSize; if(isVideoAssetPortrait_){ naturalSize = CGSizeMake(videoAssetTrack.naturalSize.height, videoAssetTrack.naturalSize.width); } else { naturalSize = videoAssetTrack.naturalSize; } float renderWidth, renderHeight; renderWidth = naturalSize.width; renderHeight = naturalSize.height; mainCompositionInst.renderSize = CGSizeMake(renderWidth, renderHeight); mainCompositionInst.renderSize = CGSizeMake(renderWidth, renderHeight); mainCompositionInst.instructions = [NSArray arrayWithObject:mainInstruction]; mainCompositionInst.frameDuration = CMTimeMake(1, 25); [self applyVideoEffectsToComposition:mainCompositionInst WithWaterImg:img WithCoverImage:coverImg WithQustion:question size:CGSizeMake(renderWidth, renderHeight)]; // 4 - 输出路径 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *myPathDocs = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.mp4",fileName]]; unlink([myPathDocs UTF8String]); NSURL* videoUrl = [NSURL fileURLWithPath:myPathDocs]; // CADisplayLink *dlink = [CADisplayLink displayLinkWithTarget:self selector:@selector(updateProgress)]; // [dlink setFrameInterval:15]; // [dlink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; // [dlink setPaused:NO]; // 5 - 视频文件输出 AVAssetExportSession *exporter = [[AVAssetExportSession alloc] initWithAsset:mixComposition presetName:AVAssetExportPresetHighestQuality]; exporter.outputURL=videoUrl; exporter.outputFileType = AVFileTypeQuickTimeMovie; exporter.shouldOptimizeForNetworkUse = YES; exporter.videoComposition = mainCompositionInst; [exporter exportAsynchronouslyWithCompletionHandler:^{ dispatch_async(dispatch_get_main_queue(), ^{ //这里是输出视频之后的操作，做你想做的 // [MGTCVideoRecordManager exportDidFinish:exporter]; completionHandle(myPathDocs); }); }]; } + (void)applyVideoEffectsToComposition:(AVMutableVideoComposition *)composition WithWaterImg:(UIImage*)img WithCoverImage:(UIImage*)coverImg WithQustion:(NSString*)question size:(CGSize)size { NSArray *strArr = [question componentsSeparatedByString:@","]; NSString *titleLeft = strArr.firstObject; NSString *weiboID = [NSString stringWithFormat:ASLocalizedString(@"唯播ID:%@"),strArr.lastObject]; UIFont *font = [UIFont systemFontOfSize:30.0]; CATextLayer *subtitle1Text = [[CATextLayer alloc] init]; [subtitle1Text setFontSize:30]; [subtitle1Text setString:titleLeft]; [subtitle1Text setAlignmentMode:kCAAlignmentLeft]; [subtitle1Text setForegroundColor:[[UIColor whiteColor] CGColor]]; subtitle1Text.masksToBounds = YES; subtitle1Text.cornerRadius = 23.0f; // [subtitle1Text setBackgroundColor:[UIColor colorWithRed:0 green:0 blue:0 alpha:0.5].CGColor]; CGSize textSize = [titleLeft sizeWithAttributes:[NSDictionary dictionaryWithObjectsAndKeys:font,NSFontAttributeName, nil]]; [subtitle1Text setFrame:CGRectMake(50, size.height - textSize.height - 100, textSize.width+20, textSize.height+15)]; CATextLayer *subtitle1Text2 = [[CATextLayer alloc] init]; [subtitle1Text2 setFontSize:30]; [subtitle1Text2 setString:weiboID]; [subtitle1Text2 setAlignmentMode:kCAAlignmentRight]; [subtitle1Text2 setForegroundColor:[[UIColor whiteColor] CGColor]]; subtitle1Text2.masksToBounds = YES; subtitle1Text2.cornerRadius = 23.0f; // [subtitle1Text2 setBackgroundColor:[UIColor colorWithRed:0 green:0 blue:0 alpha:0.5].CGColor]; CGSize textSize2 = [weiboID sizeWithAttributes:[NSDictionary dictionaryWithObjectsAndKeys:font,NSFontAttributeName, nil]]; [subtitle1Text2 setFrame:CGRectMake(size.width - textSize2.width - 20 , textSize2.height + 10, textSize2.width , textSize2.height + 10)]; //水印 CALayer *imgLayer = [CALayer layer]; imgLayer.contents = (id)img.CGImage; // imgLayer.bounds = CGRectMake(0, 0, size.width, size.height); // imgLayer.bounds = CGRectMake(0, 0, 210, 50); // imgLayer.position = CGPointMake(size.width/2.0, size.height/2.0); //第二个水印 CALayer *coverImgLayer = [CALayer layer]; coverImgLayer.contents = (id)coverImg.CGImage; // [coverImgLayer setContentsGravity:@"resizeAspect"]; // coverImgLayer.bounds = CGRectMake(50, 200,210, 50); // coverImgLayer.position = CGPointMake(size.width/4.0, size.height/4.0); // 2 - The usual overlay CALayer *overlayLayer = [CALayer layer]; [overlayLayer addSublayer:subtitle1Text]; [overlayLayer addSublayer:imgLayer]; overlayLayer.frame = CGRectMake(0, 0, size.width, size.height); // [overlayLayer setMasksToBounds:YES]; // 3 - CALayer *overlayLayer2 = [CALayer layer]; [overlayLayer2 addSublayer:subtitle1Text2]; // [overlayLayer2 addSublayer:imgLayer]; overlayLayer2.frame = CGRectMake(0, 0, size.width, size.height); [overlayLayer2 setMasksToBounds:YES]; CALayer *parentLayer = [CALayer layer]; CALayer *videoLayer = [CALayer layer]; parentLayer.frame = CGRectMake(0, 0, size.width, size.height); videoLayer.frame = CGRectMake(0, 0, size.width, size.height); [parentLayer addSublayer:videoLayer]; [parentLayer addSublayer:overlayLayer]; [parentLayer addSublayer:coverImgLayer]; [parentLayer addSublayer:overlayLayer2]; //设置封面 CABasicAnimation *anima = [CABasicAnimation animationWithKeyPath:@"opacity"]; anima.fromValue = [NSNumber numberWithFloat:1.0f]; anima.toValue = [NSNumber numberWithFloat:0.0f]; anima.repeatCount = 0; anima.duration = 5.0f; //5s之后消失 [anima setRemovedOnCompletion:NO]; [anima setFillMode:kCAFillModeForwards]; anima.beginTime = AVCoreAnimationBeginTimeAtZero; [coverImgLayer addAnimation:anima forKey:@"opacityAniamtion"]; composition.animationTool = [AVVideoCompositionCoreAnimationTool videoCompositionCoreAnimationToolWithPostProcessingAsVideoLayer:videoLayer inLayer:parentLayer]; } // //更新生成进度 + (void)updateProgress { // [SVProgressHUD showProgress:exporter.progress status:NSLocalizedString(ASLocalizedString(@"生成中..."), nil)]; // if (exporter.progress>=1.0) { // [dlink setPaused:true]; // [dlink invalidate]; // // [SVProgressHUD dismiss]; // } } @end