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• How to split the Video into Frames using FFMPEG in Spring-Boot ?

  8 octobre 2020, par Abhinay K

  To fetch Frames from Video with 5fps rate with specified Start and end Time in video with following FFMPEG command,

  


  ffmpeg -i input.mp4 -ss 00:00:54 -to 00:01:53 -r 5 -f image2 image-%13d.png,

  


  I want to implement the same in the Spring-boot application,

  


  I found the following code snippet to fetch frames from Video,

  


  public static void main(String[] args) {
    Java2DFrameConverter bimConverter = new Java2DFrameConverter();
    FFmpegFrameGrabber g = new FFmpegFrameGrabber("input.mp4");
    try {
        g.start();
        for (int i = 0; i < 50; i++) {
            ImageIO.write(bimConverter.convert(g.grab()), "png", new File(
                    "image-" + System.currentTimeMillis() + ".png"));
        }
        g.stop();
    } catch (IOException ie) {
        ie.printStackTrace();
    } catch (Exception e) {
        e.printStackTrace();
    }
}


  


  but I required logic to implement as output from following command,

  


  ffmpeg -i input.mp4 -ss 00:00:54 -to 00:01:53 -r 5 -f image2 image-%13d.png,

  


  Please help me out the logic need to implement,

  


• Joining/Concatenating more than one video files in Java Spring Boot

  7 décembre 2020, par Rohan Shah

  I am trying to join/concate multiple files in Java, so far the procedure that I was following (https://github.com/bramp/ffmpeg-cli-wrapper) was going alright, but in this procedure, there were a couple of lines that I could not understand.

  


  Code I am following :

  


  FFmpeg ffmpeg = new FFmpeg("/path/to/ffmpeg");
FFprobe ffprobe = new FFprobe("/path/to/ffprobe");

FFmpegBuilder builder = new FFmpegBuilder()

  .setInput("input.mp4")     // Filename, or a FFmpegProbeResult
  .addInput("input2.mp4")    // <--------------------------------  Second file that I added
  .overrideOutputFiles(true) // Override the output if it exists

  .addOutput("output.mp4")   // Filename for the destination
    .setFormat("mp4")        // Format is inferred from filename, or can be set
    .setTargetSize(250_000)  // Aim for a 250KB file

    .disableSubtitle()       // No subtiles

    .setAudioChannels(1)         // Mono audio
    .setAudioCodec("aac")        // using the aac codec
    .setAudioSampleRate(48_000)  // at 48KHz
    .setAudioBitRate(32768)      // at 32 kbit/s

    .setVideoCodec("libx264")     // Video using x264
    .setVideoFrameRate(24, 1)     // at 24 frames per second
    .setVideoResolution(640, 480) // at 640x480 resolution

    .setStrict(FFmpegBuilder.Strict.EXPERIMENTAL) // Allow FFmpeg to use experimental specs
    .done();

FFmpegExecutor executor = new FFmpegExecutor(ffmpeg, ffprobe);

// Run a one-pass encode
executor.createJob(builder).run();

// Or run a two-pass encode (which is better quality at the cost of being slower)
executor.createTwoPassJob(builder).run();


  


  These are the lines throwing error :

  


  FFmpeg ffmpeg = new FFmpeg("/path/to/ffmpeg");
FFprobe ffprobe = new FFprobe("/path/to/ffprobe");


  


  In these lines, I am providing a path like this,

  


  FFmpeg ffmpeg = new FFmpeg("D:/");
FFprobe ffprobe = new FFprobe("D:/");


  


  which leads to an error

  


  java.io.IOException: CreateProcess error=5


  


  I believe the ffmpeg in /path/to/ffmpeg and ffprobe in /path/to/ffprobe are files, not directories, which is why it threw an execution permission error, but as I looked into the repository (link given above) I was not able to find this particular file in the given link.

  


  There were a couple of Java files named ffmpeg.java and ffprobe.java, but when I tried using them in the code then I got the same error, so I want to know which files am I supposed to have in these paths

  


• How to use Jaffree with Spring Boot for streaming a RTSP flow

  25 août 2022, par Jmarchi

  Im trying to build a APIRest and one of the things i want to do is recirculate the rtsp video provided by some security cameras to the frontend.

  


  I have found the Jaffree, a dependency that integrates the ffmpeg into spring, until then all is good.

  


  The problem is when i try to send the video to the frontend (make in React) i recieve this error :

  


  


  Starting process : ffmpeg

  


  Waiting for process to finish

  


  ...

  


  Input #0, mpjpeg, from __________

  


  Duration : N/A, bitrate : N/A

  


  Stream #0:0 : Video : mjpeg (Baseline), yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn

  


  [warning] Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (tcp ://127.0.0.1:52225) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.

  


  Output #0, ismv, to 'tcp ://127.0.0.1:52225' :

  


  Metadata :

  


  encoder : Lavf59.27.100

  


  Stream #0:0 : Video : mjpeg (Baseline) (mp4v / 0x7634706D), yuvj420p(pc, bt470bg/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 tbr, 10000k tbn

  


  Stream mapping :

  


  Stream #0:0 -> #0:0 (copy)

  


  frame= 21 fps=7.2 q=-1.0 size= 252kB time=00:00:00.80 bitrate=2580.9kbits/s speed=0.275x

  


  ...

  


   : Interrupting starter thread (task-1) because of exception : TCP negotiation failed

  


  


  The code in the backend is this :

  


  @GetMapping(value = "/{id}/video")&#xA;public ResponseEntity<streamingresponsebody> getVideo() {&#xA;        String url = "**********";&#xA;&#xA;        return ResponseEntity.ok()&#xA;                .contentType(MediaType.APPLICATION_OCTET_STREAM)&#xA;                .body(os ->{&#xA;                    FFmpeg.atPath()&#xA;                            .addArgument("-re")&#xA;                            .addArguments("-acodec", "pcm_s16le")&#xA;                            // .addArguments("-rtsp_transport", "tcp")&#xA;                            .addArguments("-i", url)&#xA;                            .addArguments("-vcodec", "copy")&#xA;                            .addArguments("-af", "asetrate=22050")&#xA;                            .addArguments("-acodec", "aac")&#xA;                            .addArguments("-b:a", "96k" )&#xA;                            .addOutput(PipeOutput.pumpTo(os)&#xA;                                    .disableStream(StreamType.AUDIO)&#xA;                                    .disableStream(StreamType.SUBTITLE)&#xA;                                    .disableStream(StreamType.DATA)&#xA;                                    .setFrameCount(StreamType.VIDEO, 100L)&#xA;                                     //1 frame every 10 seconds&#xA;                                    .setFrameRate(0.1)&#xA;                                    .setDuration(1, TimeUnit.HOURS)&#xA;                                    .setFormat("ismv"))&#xA;                            .addArgument("-nostdin")&#xA;                            .execute();&#xA;                });&#xA;    }&#xA;</streamingresponsebody>

  


  And this is the html part :

  


  <video width="100%" height="auto" controls="controls" autoplay="autoplay" muted="muted" src="http://localhost:7500/***/1/video">&#xA;                Sorry, your browser doesn&#x27;t support embedded videos.&#xA;            </video>&#xA;

  


  What is it missing for the TCP negotiation ?