javacv从入门到精通——第十二章javacv如何加载字幕文件

在JavaCV中，可以使用FFmpegFrameGrabber类和FFmpegFrameRecorder类来加载视频文件和字幕文件，并将它们合并成一个视频文件。以下是示例代码：

import org.bytedeco.javacv.*;

public class VideoSubtitlesMerger {

   public static void main(String[] args) throws Exception {
      
      // Load video file
      FFmpegFrameGrabber videoGrabber = new FFmpegFrameGrabber("video.mp4");
      videoGrabber.start();

      // Load subtitle file
      FFmpegFrameGrabber subtitleGrabber = new FFmpegFrameGrabber("subtitle.srt");
      subtitleGrabber.start();

      // Create recorder to merge video and subtitles
      FFmpegFrameRecorder recorder = new FFmpegFrameRecorder("output.mp4", videoGrabber.getImageWidth(), videoGrabber.getImageHeight(), 2);
      recorder.setFormat("mp4");
      recorder.start();

      Frame videoFrame, subtitleFrame;

      // Read frames from video and subtitle and merge them
      while ((videoFrame = videoGrabber.grab()) !=