如何加入一個音頻和視頻文件 - Xuggler

Question

我想要的視頻文件(flv)沒有音頻使用Xuggler音頻文件(mp3)結合起來。目前，我已經拍攝了兩個視頻流，並將這些視頻流的視頻和音頻部分分別合成爲畫中畫。現在我想將音頻和視頻文件相互結合..任何建議或提示將不勝感激。我正在使用red5服務器。謝謝。

Answer 1

使用MediaConcatenator。見示例代碼"Concatenate Audio And Video"

Answer 2

我公司開發的一類，將採取兩個輸入，一個音頻文件和第二視頻文件，並將它們合併到一個單一的音頻視頻文件。

public static void main(String[] args) 
    { 

    String filenamevideo = "f:/testvidfol/video.mp4"; //video file on your disk 
    String filenameaudio = "f:/testvidfol/audio.wav"; //audio file on your disk 


    IMediaWriter mWriter = ToolFactory.makeWriter("f:/testvidfol/videowriter.flv"); //output file 

    IContainer containerVideo = IContainer.make(); 
    IContainer containerAudio = IContainer.make(); 

    if (containerVideo.open(filenamevideo, IContainer.Type.READ, null) < 0) 
     throw new IllegalArgumentException("Cant find " + filenamevideo); 

    if (containerAudio.open(filenameaudio, IContainer.Type.READ, null) < 0) 
     throw new IllegalArgumentException("Cant find " + filenameaudio); 

    int numStreamVideo = containerVideo.getNumStreams(); 
    int numStreamAudio = containerAudio.getNumStreams(); 

    System.out.println("Number of video streams: "+numStreamVideo + "\n" + "Number of audio streams: "+numStreamAudio); 

int videostreamt = -1; //this is the video stream id 
int audiostreamt = -1; 

IStreamCoder videocoder = null; 

    for(int i=0; i<numStreamVideo; i++){ 
     IStream stream = containerVideo.getStream(i); 
     IStreamCoder code = stream.getStreamCoder(); 

     if(code.getCodecType() == ICodec.Type.CODEC_TYPE_VIDEO) 
     { 
      videostreamt = i; 
      videocoder = code; 
      break; 
     } 

    } 

    for(int i=0; i<numStreamAudio; i++){ 
     IStream stream = containerAudio.getStream(i); 
     IStreamCoder code = stream.getStreamCoder(); 

     if(code.getCodecType() == ICodec.Type.CODEC_TYPE_AUDIO) 
     { 
      audiostreamt = i; 
      break; 
     } 

    } 

    if (videostreamt == -1) throw new RuntimeException("No video steam found"); 
    if (audiostreamt == -1) throw new RuntimeException("No audio steam found"); 

    if(videocoder.open()<0) throw new RuntimeException("Cant open video coder"); 
    IPacket packetvideo = IPacket.make(); 

    IStreamCoder audioCoder = containerAudio.getStream(audiostreamt).getStreamCoder(); 

    if(audioCoder.open()<0) throw new RuntimeException("Cant open audio coder"); 
    mWriter.addAudioStream(0, 0, audioCoder.getChannels(), audioCoder.getSampleRate()); 

    mWriter.addVideoStream(1, 1, videocoder.getWidth(), videocoder.getHeight()); 

    IPacket packetaudio = IPacket.make(); 

    while(containerVideo.readNextPacket(packetvideo) >= 0 || 
      containerAudio.readNextPacket(packetaudio) >= 0){ 

     if(packetvideo.getStreamIndex() == videostreamt){ 

      //video packet 
      IVideoPicture picture = IVideoPicture.make(videocoder.getPixelType(), 
        videocoder.getWidth(), 
        videocoder.getHeight()); 
      int offset = 0; 
      while (offset < packetvideo.getSize()){ 
       int bytesDecoded = videocoder.decodeVideo(picture, 
         packetvideo, 
         offset); 
       if(bytesDecoded < 0) throw new RuntimeException("bytesDecoded not working"); 
       offset += bytesDecoded; 

       if(picture.isComplete()){ 
        System.out.println(picture.getPixelType()); 
        mWriter.encodeVideo(1, picture); 

       } 
      } 
     } 

     if(packetaudio.getStreamIndex() == audiostreamt){ 
     //audio packet 

      IAudioSamples samples = IAudioSamples.make(512, 
        audioCoder.getChannels(), 
        IAudioSamples.Format.FMT_S32); 
      int offset = 0; 
      while(offset<packetaudio.getSize()) 
      { 
       int bytesDecodedaudio = audioCoder.decodeAudio(samples, 
         packetaudio, 
         offset); 
       if (bytesDecodedaudio < 0) 
        throw new RuntimeException("could not detect audio"); 
       offset += bytesDecodedaudio; 

       if (samples.isComplete()){ 
        mWriter.encodeAudio(0, samples); 

     } 
      } 

    } 

    } 
} 

希望它能幫助你。