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视频编辑工具：添加水印、特效、音乐、导出视频、视频转gif

news 2024/5/19 7:21:47

githud传送门：NHAVEditor

基于 AVFoundation 框架封装的 iOS视频编辑工具，支持给视频添加水印、特效、音乐、导出视频、视频转gif

iOS: >= 8.0

使用方法：

导入头文件：

#import "NHAVEditor.h"
#import "NHAVEditorHeader.h"
#import "NHGifWriter.h"
#import "NHMediaWriter.h"
#import "NHCaptureViewController.h"

初始化

- (NHAVEditor *)mediaEditor {if (!_mediaEditor) {_mediaEditor = [[NHAVEditor alloc] initWithVideoURL:[NSURL fileURLWithPath:kMp4Path]];_mediaEditor.delegate = self;}return _mediaEditor;
}- (NHGifWriter *)gifWriter {if (!_gifWriter) {_gifWriter = [[NHGifWriter alloc] initWithOutputURL:nil];_gifWriter.loopCount = 0;_gifWriter.delayTime = 0.1;}return _gifWriter;
}- (NHMediaWriter *)mediaWriter {if (!_mediaWriter) {_mediaWriter = [NHMediaWriter mediaWithVideoSize:_displayView.videoSize fileType:AVFileTypeQuickTimeMovie];}return _mediaWriter;
}

添加背景音乐

 [self.mediaEditor addAudioWithAudioURL:url customConfig:^(NHAudioConfig * _Nonnull config) {// 开始的音量大小，结束的时音量大小，从开始到结束这段时间的一个音量线性变化config.startVolume = 0.0;config.endVolume = 1.0;// 是否关闭视频原声，默认false//  config.removeOriginalAudio = true;config.originalVolume = 0.1;} completedBlock:nil];

添加水印

// 先创建一个水印或者动效 layer 层CGFloat x = _displayView.videoSize.width - [self logoImage].size.width;
//  CGFloat y = _displayView.videoSize.height - [self logoImage].size.height;_watermarkLayer.frame = CGRectMake(x, 0, [self logoImage].size.width, [self logoImage].size.height);if (_isOpenAnimation) {CABasicAnimation *keyAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];keyAnimation.duration = 2.0;keyAnimation.repeatCount = MAXFLOAT;keyAnimation.toValue = @(M_PI * 2.0);keyAnimation.beginTime = AVCoreAnimationBeginTimeAtZero;keyAnimation.removedOnCompletion = NO;[_watermarkLayer addAnimation:keyAnimation forKey:@"transform.rotation.z"];}// 执行添加水印操作[self.mediaEditor addWatermarkWithLayer:self.watermarkLayer customConfig:nil completedBlock:nil];

导出视频

    [self.mediaEditor exportMediaWithOutputURL:nil customConfig:^(NHExporyConfig * _Nonnull config) {config.presetName = AVAssetExportPreset1280x720;config.outputFileType = AVFileTypeQuickTimeMovie;} completedBlock:^(NSURL * _Nullable outputURL, NSError * _Nullable error) {// do ...}];

视频转 GIF

  [self.gifWriter buildGifFromVideo:outputURL timeInterval:@(600) completion:^(NSURL * _Nullable url, NSError * _Nullable error) {NHLog(@"GIF生成完成:%@", url);}];

CMSampleBufferRef / CVPixelBufferRef 写成音/视频文件

// 1. 准备工作
[ws.mediaWriter prepareBuildMediaWithOutpurUrl:[ws OutUrl:@"mov"]];// 2. 写入
[ws.mediaWriter appendVideoSampleBuffer:bufferRef];// 3. 完成写入
[ws.mediaWriter finishWriteWithCompletionHandler:^(NSURL * _Nonnull fileUrl) {NHLog(@"%@",fileUrl);if (fileUrl) {}
}];