org.bytedeco.javacv.FrameGrabber#Exception

Source File: ConverterService.java From Spring with Apache License 2.0

6 votes

public void toAnimatedGif(FFmpegFrameGrabber frameGrabber, AnimatedGifEncoder
        gifEncoder, int start, int end, int speed) throws FrameGrabber.Exception {

    final long startFrame = Math.round(start * frameGrabber.getFrameRate());
    final long endFrame = Math.round(end * frameGrabber.getFrameRate());

    final Java2DFrameConverter frameConverter = new Java2DFrameConverter();

    for (long i = startFrame; i < endFrame; i++) {

        if (i % speed == 0) {

            // Bug if frameNumber is set to 0
            if (i > 0) {
                frameGrabber.setFrameNumber((int) i);
            }

            final BufferedImage bufferedImage = frameConverter.convert(frameGrabber.grabImage());
            gifEncoder.addFrame(bufferedImage);
        }

    }

    frameGrabber.stop();
    gifEncoder.finish();
}

Source File: UploadController.java From Spring with Apache License 2.0

6 votes

/**
 * curl -F file=@/home/olinnyk/IdeaProjects/Spring/SpringWEB/SpringBoot/just-gif-it/video/PexelsVideos.mp4 -F start=0 -F end=5 -F speed=1 -F repeat=0 localhost:8080/upload
 */
@PostMapping
@RequestMapping(value = "/upload", produces = MediaType.IMAGE_GIF_VALUE)
public String upload(@RequestPart("file") MultipartFile file,
		@RequestParam("start") int start,
		@RequestParam("end") int end,
		@RequestParam("speed") int speed,
		@RequestParam("repeat") boolean repeat) throws IOException, FrameGrabber.Exception {

	final File videoFile = new File(location + "/" + System.currentTimeMillis() + ".mp4");
	file.transferTo(videoFile);

	log.info("Saved video file to {}", videoFile.getAbsolutePath());

	final Path output = Paths.get(location + "/gif/" + System.currentTimeMillis() + ".gif");

	final FFmpegFrameGrabber frameGrabber = videoDecoderService.read(videoFile);
	final AnimatedGifEncoder gifEncoder = gifEncoderService.getGifEncoder(repeat, (float) frameGrabber.getFrameRate(), output);
	converterService.toAnimatedGif(frameGrabber, gifEncoder, start, end, speed);

	log.info("Saved generated gif to {}", output.toString());

	return output.getFileName().toString();
}

Source File: VideoPlayer.java From Java-Machine-Learning-for-Computer-Vision with MIT License

6 votes

private void runVideoMainThread(String videoFileName, OpenCVFrameConverter.ToMat toMat) throws FrameGrabber.Exception {
    FFmpegFrameGrabber grabber = initFrameGrabber(videoFileName);
    while (!stop) {
        Frame frame = grabber.grab();
        if (frame == null) {
            log.info("Stopping");
            stop();
            break;
        }
        if (frame.image == null) {
            continue;
        }
        yolo.push(frame);
        opencv_core.Mat mat = toMat.convert(frame);
        yolo.drawBoundingBoxesRectangles(frame, mat);
        imshow(windowName, mat);
        char key = (char) waitKey(20);
        // Exit this loop on escape:
        if (key == 27) {
            stop();
            break;
        }
    }
}

Source File: CameraFFMPEG.java From PapARt with GNU Lesser General Public License v3.0

6 votes

@Override
public void start() {
    FFmpegFrameGrabber grabberFF = new FFmpegFrameGrabber(this.cameraDescription);

    grabberFF.setImageMode(FrameGrabber.ImageMode.COLOR);

    this.setPixelFormat(PixelFormat.BGR);

    grabberFF.setFormat(this.imageFormat);
    grabberFF.setImageWidth(width());
    grabberFF.setImageHeight(height());
    grabberFF.setFrameRate(frameRate);

    try {
        grabberFF.start();
        this.grabber = grabberFF;
        this.isConnected = true;
    } catch (FrameGrabber.Exception e) {
        System.err.println("Could not FFMPEG frameGrabber... " + e);
        System.err.println("Camera ID " + this.cameraDescription + ":" + this.imageFormat + " could not start.");
        System.err.println("Check cable connection, ID and resolution asked.");
        this.grabber = null;
    }
}

Source File: CameraRealSense.java From PapARt with GNU Lesser General Public License v3.0

5 votes

/**
 * Experimental.
 *
 * @return
 */
public Frame grabFrame() {
    try {
        return grabber.grab();
    } catch (FrameGrabber.Exception ex) {
        Logger.getLogger(CameraRealSense.class.getName()).log(Level.SEVERE, null, ex);
    }
    return null;
}

Source File: CameraFFMPEG.java From PapARt with GNU Lesser General Public License v3.0

5 votes

private void checkEndOfVideo() {
    // 10 frames from the end.
    if (grabber.getFrameNumber() + 10 > grabber.getLengthInFrames()) {
        try {
            grabber.setFrameNumber(0);
        } catch (FrameGrabber.Exception ex) {
            Logger.getLogger(CameraFFMPEG.class.getName()).log(Level.SEVERE, null, ex);
        }
    }
}

Source File: CameraOpenKinect.java From PapARt with GNU Lesser General Public License v3.0

5 votes

@Override
public void grabColor() {
    try {
        colorCamera.updateCurrentImage(grabber.grabVideo());
    } catch (FrameGrabber.Exception ex) {
        Logger.getLogger(CameraOpenKinect.class.getName()).log(Level.SEVERE, null, ex);
    }
}

Source File: CameraOpenKinect.java From PapARt with GNU Lesser General Public License v3.0

5 votes

@Override
public void grabDepth() {
    try {
        depthCamera.currentImage = grabber.grabDepth();

        ((WithTouchInput) depthCamera).newTouchImageWithColor(colorCamera.currentImage);
    } catch (FrameGrabber.Exception ex) {
        Logger.getLogger(CameraOpenKinect.class.getName()).log(Level.SEVERE, null, ex);
    }
}

Source File: JavaCVExample.java From javacv-cnn-example with MIT License

5 votes

/**
 * Stops and released resources attached to frame grabbing. Stops frame processing and,
 */
public void stop() {
    running = false;
    try {
        logger.debug("Releasing and stopping FrameGrabber");
        frameGrabber.release();
        frameGrabber.stop();
    } catch (FrameGrabber.Exception e) {
        logger.error("Error occurred when stopping the FrameGrabber", e);
    }

    window.dispose();
}

Source File: JavaCVExample.java From javacv-cnn-example with MIT License

5 votes

/**
 * Starts the frame grabbers and then the frame processing. Grabbed and processed frames will be displayed in the
 * {@link #videoPanel}
 */
public void start() {
   // frameGrabber = new FFmpegFrameGrabber("/dev/video0");
    // The available FrameGrabber classes include OpenCVFrameGrabber (opencv_videoio),
    // DC1394FrameGrabber, FlyCapture2FrameGrabber, OpenKinectFrameGrabber,
    // PS3EyeFrameGrabber, VideoInputFrameGrabber, and FFmpegFrameGrabber.
    frameGrabber = new OpenCVFrameGrabber(0);

    //frameGrabber.setFormat("mp4");
    frameGrabber.setImageWidth(1280);
    frameGrabber.setImageHeight(720);

    logger.debug("Starting frame grabber");
    try {
        frameGrabber.start();
        logger.debug("Started frame grabber with image width-height : {}-{}", frameGrabber.getImageWidth(), frameGrabber.getImageHeight());
    } catch (FrameGrabber.Exception e) {
        logger.error("Error when initializing the frame grabber", e);
        throw new RuntimeException("Unable to start the FrameGrabber", e);
    }

    SwingUtilities.invokeLater(() -> {
        window.setVisible(true);
    });

    process();

    logger.debug("Stopped frame grabbing.");
}

Source File: CameraOpenKinect2.java From PapARt with GNU Lesser General Public License v3.0

4 votes

@Override
public void internalStart() throws FrameGrabber.Exception {
    grabber.start();
}

Source File: CameraOpenKinect.java From PapARt with GNU Lesser General Public License v3.0

4 votes

@Override
public void internalStart() throws FrameGrabber.Exception {
    grabber.start();
}

Source File: VideoPlayer.java From Java-Machine-Learning-for-Computer-Vision with MIT License

4 votes

private FFmpegFrameGrabber initFrameGrabber(String videoFileName) throws FrameGrabber.Exception {
    FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(videoFileName);
    grabber.start();
    return grabber;
}

Source File: VideoPlayer.java From Java-Machine-Learning-for-Computer-Vision with MIT License

4 votes

private FFmpegFrameGrabber initFrameGrabber(String videoFileName) throws FrameGrabber.Exception {
    FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(new File(videoFileName));
    grabber.start();
    return grabber;
}

Source File: CameraOpenNI2.java From PapARt with GNU Lesser General Public License v3.0

4 votes

@Override
    public void internalStart() throws FrameGrabber.Exception {
        if (useColor) {
            colorStream = initStream(
                    //                    PixelFormat.BGR,
                    PixelFormat.RGB,
                    org.openni.PixelFormat.RGB888,
                    SensorType.COLOR,
                    new FrameListener(colorCamera),
                    colorCamera);

            colorStream.setMirroringEnabled(false);
            colorCamera.setUndistort(false);

            colorStream.start();
        }

        if (useIR) {
            IRStream = initStream(
                    PixelFormat.RGB,
                    org.openni.PixelFormat.RGB888,
                    SensorType.IR,
                    new FrameListener(IRCamera),
                    IRCamera);
            IRStream.setMirroringEnabled(false);
            IRCamera.setUndistort(false);
            IRStream.start();

        }

        if (useDepth) {
            depthStream = initStream(
                    PixelFormat.OPENNI_2_DEPTH,
                    org.openni.PixelFormat.DEPTH_1_MM,
                    SensorType.DEPTH,
                    new FrameListener(depthCamera),
                    depthCamera);
            depthStream.setMirroringEnabled(false);
            depthCamera.setUndistort(false);
            depthStream.start();
        }

//        grabber.start();
//
//        // Override the calibration... 
//        if (useHardwareIntrinsics) {
//            if (useColor) {
//                useHarwareIntrinsics(colorCamera, grabber);
//            }
//            if (useIR) {
//                useHarwareIntrinsics(IRCamera, grabber);
//            }
//            if (useDepth) {
//                useHarwareIntrinsics(depthCamera, grabber);
//            }
//        }
    }

Source File: CameraRealSense.java From PapARt with GNU Lesser General Public License v3.0

4 votes

@Override
    public void internalStart() throws FrameGrabber.Exception {

        if (useIR && !useDepth && !useColor) {
            IRCamera.setFrameRate(60); // 200 max -> buggy
        }

        if (useColor) {
            grabber.setImageWidth(colorCamera.width());
            grabber.setImageHeight(colorCamera.height());
            grabber.setFrameRate(colorCamera.getFrameRate());
            grabber.enableColorStream();
        }

        if (useIR) {
            grabber.setIRImageWidth(IRCamera.width());
            grabber.setIRImageHeight(IRCamera.height());
            grabber.setIRFrameRate(IRCamera.getFrameRate());
            grabber.enableIRStream();
        }

        if (useDepth) {
            grabber.setDepthImageWidth(depthCamera.width());
            grabber.setDepthImageHeight(depthCamera.height());
            grabber.setDepthFrameRate(depthCamera.getFrameRate());
            grabber.enableDepthStream();
        }

        grabber.start();

//        grabber.setPreset(3);
        // Override the calibration... 
        if (useHardwareIntrinsics) {
            if (useColor) {
                useHarwareIntrinsics(colorCamera, grabber);
            }
            if (useIR) {
                useHarwareIntrinsics(IRCamera, grabber);
            }
            if (useDepth) {
                useHarwareIntrinsics(depthCamera, grabber);
            }
        }

    }

Source File: VideoDecoderService.java From Spring with Apache License 2.0

4 votes

public FFmpegFrameGrabber read(File video) throws FrameGrabber.Exception {
    FFmpegFrameGrabber frameGrabber = new FFmpegFrameGrabber(video);
    frameGrabber.start();
    return frameGrabber;
}

Java Code Examples for org.bytedeco.javacv.FrameGrabber#Exception