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Sur d’autres sites (13760)

  • Merging audio(aac) and video (h.264 in mp4 container) into a mp4 container using Xuggler

    26 août 2016, par Handroid

    Here is the code I am using

        String filenamevideo = videoFilePath;(video.mp4)
    

    
    String filenameaudio = audioAACFilePath; (audio.aac)
    

    

    

    
    IMediaWriter mWriter = ToolFactory.makeWriter(videoWithAudioFilePath); // 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();    
    

    
    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, ICodec.ID.CODEC_ID_AAC, audioCoder.getChannels(),audioCoder.getSampleRate());
    

    
    mWriter.addVideoStream(1, 0, ICodec.ID.CODEC_ID_H264, 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);
    
                }
    
            }
    

    
        }           
    
    }

    The output file (mp4) is generating , but unable to play it using (vlc) and in JavaFX scene media.

    Please help me with the inputs on the above code I’m using it in a correct way (Or) help me with the possible solution for merging audio(aac) and video(h264) to mp4 container.

    Thank in advance.

  • Mixing audio(aac) and video (h.264 in mp4 container) and write to mp4 container using Xuggler

    25 novembre 2015, par Handroid

    Here is the code I am using

        String filenamevideo = videoFilePath;(video.mp4)
    

    
    String filenameaudio = audioAACFilePath; (audio.aac)
    

    

    

    
    IMediaWriter mWriter = ToolFactory.makeWriter(videoWithAudioFilePath); // 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();    
    

    
    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, ICodec.ID.CODEC_ID_AAC, audioCoder.getChannels(),audioCoder.getSampleRate());
    

    
    mWriter.addVideoStream(1, 0, ICodec.ID.CODEC_ID_H264, 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);
    
                }
    
            }
    

    
        }           
    
    }

    The output file (mp4) is generating , but unable to play it using (vlc) and in JavaFX scene media.

    Please help me with the inputs on the above code I’m using it in a correct way (Or) help me with the possible solution for mixing audio(aac) and video(h264) to mp4 container.

    Thank in advance.

  • NodeJS - FFmpeg : Extract Frame from Video stdin stream (EPIPE write Error)

    3 avril 2022, par ManiB

    I want to pipe an input steam (video) (should later be an http stream) to ffmpeg child process to extract an thumbnail :

    


    require("stream").pipeline(
  require("fs").createReadStream("files/myVideo.mp4"),
  require("child_process").spawn("ffmpeg", ["-i", "-", "-ss", "00:00:01", "-frames:v", "1", "-y", "files/myImage.jpeg"]).stdin,
  (err) => console.log("Done", err)
);


    


    So far so good, I get an extracted Image, but also an Error :

    


    Error: write EPIPE
    at WriteWrap.onWriteComplete [as oncomplete] (node:internal/stream_base_commons:94:16) {
  errno: -32,
  code: 'EPIPE',
  syscall: 'write'
}


    


    Converting full videos (e.g. mp4 -> mkv) works without errors.

    


    My suggestion is, FFmpeg will close stdin too early (because image is already found on first second) and readable-stream is not able to write to stdin anymore.

    


    How can I manage, to fix the error and gracefully close all streams ?

    


    System :

    


      

    • Linux Centos 7 (also tried Windows Server 1809)

      • 


    • NodeJS v16.14.1 (Windows v16.13.0)

      • 


    • FFmpeg v4.4.1-static (Windows v4.4-full_build-www.gyan.dev)

      • 


    


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