java多媒体文件编码 处理工具类代码实例

这篇文章主要介绍了java多媒体文件编码 处理工具类使用解析,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

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://*.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 %s\n",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);
  }

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