java多媒体文件编码要怎么写，处理工具类代码实例详情介绍

标签：each   type   -o   开放性   iap   oid   apache   stream   测试   

引入

<dependency>
        <groupId>org.apache.storm</groupId>
        <artifactId>storm-core</artifactId>
        <version>1.1.0</version>
      </dependency>
      <dependency>
        <groupId>org.apache.storm</groupId>
        <artifactId>storm-kafka</artifactId>
        <version>1.0.4</version>
      </dependency>
 <dependency>
      <groupId>org.jcodec</groupId>
      <artifactId>jcodec</artifactId>
      <version>0.2.5</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>io.humble</groupId>
      <artifactId>humble-video-all</artifactId>
      <version>0.3.0</version>
    </dependency>
    <dependency>
      <groupId>org.mp4parser</groupId>
      <artifactId>isoparser</artifactId>
      <version>1.9.39</version>
    </dependency>

代码

/***
   *https://stackoverflow.com/questions/38123693/how-to-concatenate-merge-two-videos-in-a-new-video-file-in-java
   * @param aggregate 合并待输出文件
   * @param segments MPEG transport stream(FFMpeg mpegts)、 MPEG-2 TS视频;波形声音
   * @throws InterruptedException
   * @throws IOException
   */
private void merge(File aggregate, Collection<File> segments) throws InterruptedException, IOException {
    Muxer muxer = Muxer.make(aggregate.toString(), MuxerFormat.getFormat(96), "wav");
    final MediaPacket packet = MediaPacket.make();
    long dts_offset = 0;
    long pts_offset = 0;
    for (File segment : segments) {
        Demuxer demuxer = Demuxer.make();
        //option https://ffmpeg.org/ffmpeg-formats.html
        demuxer.open(segment.toString(), null, false, true, null, null);
        if (muxer.getState() == Muxer.State.STATE_INITED) {
            int numStreams = demuxer.getNumStreams();
            for (int s = 0; s < numStreams; s++) {
                DemuxerStream demuxerStream = demuxer.getStream(s);
                Decoder decoder = demuxerStream.getDecoder();
                muxer.addNewStream(decoder);
            }
            muxer.open(null, null);
        }
        long dts_max = 0;
        long pts_max = 0;
        while (demuxer.read(packet) >= 0) {
            if (packet.isComplete()) {
                packet.setDts(packet.getDts() + dts_offset);
                packet.setPts(packet.getPts() + pts_offset);
                dts_max = packet.getDts() + 1;
                pts_max = packet.getPts() + 1;
                muxer.write(packet, false);
            }
        }
        dts_offset = dts_max;
        pts_offset = pts_max;
        demuxer.close();
    }
    muxer.close();
}

测试

@Test
  public void testFormat()
  {
    MuxerFormat format = MuxerFormat.getFormat(128);
    System.out.println(format);
    Collection<MuxerFormat> formats = MuxerFormat.getFormats();
    formats.stream().forEach(this::out);
}
void out(MuxerFormat format)
  {
    System.out.printf("%s %sn",format.getName(),format.getMimeType());
  }
  @Test
  public void test() throws IOException, InterruptedException {
    String directory = "C:\Users\Administrator\AppData\Local\Temp\8ad088a2-0bb3-41dc-89d9-2c57ef8414b0";
    List<File> files = Files.list(Paths.get(directory)).map(path -> path.toFile()).filter(file -> file.getName().endsWith(".ts"))
        .collect(Collectors.toList());
    File dest = new File(directory+"\dest.wav");
    merge(dest,files);
  }

Java的多媒体文件编码，处理类工具解析内容就讲解到这里了，其实编程是一个开放性的答案，有不同思路或者是有其他方法可以实现地都可以在底下评论，期待你的发言。

java多媒体文件编码要怎么写，处理工具类代码实例详情介绍

标签：each   type   -o   开放性   iap   oid   apache   stream   测试   

原文地址：https://blog.51cto.com/14549930/2440322