public List<VideoFormat> enumVideoFormats() { if (videoFormats != null) return videoFormats; videoFormats = new ArrayList<VideoFormat>(); videoFormats.add( new VideoFormatImpl( VideoFormat.RGB32, cameraImageSize.getWidth(), cameraImageSize.getHeight(), VideoFormat.FPS_UNKNOWN)); // just for fun, add one at quarter size: videoFormats.add( new VideoFormatImpl( VideoFormat.RGB32, cameraImageSize.getWidth() / 2, cameraImageSize.getHeight() / 2, VideoFormat.FPS_UNKNOWN)); return videoFormats; }
private BufferedImage allocBufferedImage(byte[] bytes) { // Setting up the buffered image // bytesPerRow may be larger than needed for a single row. // for example, a Canon DV camera with 720 pixels across may have enough // space for 724 pixels. final int bytesPerRow = gWorld.getPixMap().getPixelData().getRowBytes(); // using a byte[] instead of an int[] is more compatible with the allowed CIVIL output formats // (always byte[]). final int w = cameraImageSize.getWidth(); final int h = cameraImageSize.getHeight(); // TODO: we don't need alpha... final DataBufferByte db = new DataBufferByte(new byte[][] {bytes}, bytes.length); final ComponentSampleModel sm = new ComponentSampleModel( DataBuffer.TYPE_BYTE, w, h, 4, bytesPerRow, // bigEndian ? ARGB : ABGR bigEndian ? new int[] {1, 2, 3, 0} : new int[] {3, 2, 1, 0}); final WritableRaster r = Raster.createWritableRaster(sm, db, new Point(0, 0)); // construction borrowed from BufferedImage constructor, for BufferedImage.TYPE_4BYTE_ABGR final ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB); int[] nBits = {8, 8, 8, 8}; // int[] bOffs = {3, 2, 1, 0}; final ColorModel colorModel = new ComponentColorModel( cs, nBits, true, false, Transparency.TRANSLUCENT, DataBuffer.TYPE_BYTE); return new BufferedImage(colorModel, r, false, null); }
private void initSequenceGrabber() throws QTException { if (sequenceGrabberInitialized) return; QTSession.open(); sg = new SequenceGrabber(); vc = new SGVideoChannel(sg); // cameraImageSize = new QDRect(320, 240); if (overrideVideoFormat != null) cameraImageSize = new QDRect(overrideVideoFormat.getWidth(), overrideVideoFormat.getHeight()); else { cameraImageSize = vc.getSrcVideoBounds(); logger.info( "Camera image size reported as: " + cameraImageSize.getWidth() + "x" + cameraImageSize.getHeight()); // this is a workaround found at // http://rsb.info.nih.gov/ij/plugins/download/QuickTime_Capture.java // and other places for the isight, which gives the wrong resolution. // TODO: find a better way of identifying the isight. Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); if (cameraImageSize.getHeight() > screen.height - 40) // iSight camera claims to 1600x1200! { logger.warning( "Camera image size reported as: " + cameraImageSize.getWidth() + "x" + cameraImageSize.getHeight() + "; resizing to 640x480"); cameraImageSize.resize(640, 480); } } // On PPC (big endian) we use: k32ARGBPixelFormat // On Intel we use: k32ABGRPixelFormat // fails on PPC with DepthErrInvalid: k32ABGRPixelFormat, k32BGRAPixelFormat, k32RGBAPixelFormat gWorld = new QDGraphics( bigEndian ? QDConstants.k32ARGBPixelFormat : QDConstants.k32ABGRPixelFormat, cameraImageSize); // set a specific pixel format so we can predictably convert to // buffered image below. sg.setGWorld(gWorld, null); vc.setBounds(cameraImageSize); vc.setUsage(quicktime.std.StdQTConstants.seqGrabRecord); vc.setFrameRate(0); myCodec = quicktime.std.StdQTConstants.kComponentVideoCodecType; vc.setCompressorType(myCodec); sequenceGrabberInitialized = true; }
private byte[] allocPixelData() { // final int size = gWorld.getPixMap().getPixelData().getSize(); final int intsPerRow = gWorld.getPixMap().getPixelData().getRowBytes() / 4; final int size = intsPerRow * cameraImageSize.getHeight(); return new byte[size * 4]; }