java多媒体文件编码 处理工具类代码实例

<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>

/***   *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();  }

@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);  }