Package steganography.image.encoders

Class GifDecoder.GifImage

  • Enclosing class:
    GifDecoder
    public final class GifDecoder.GifImage
extends java.lang.Object

    • Field Detail

      • header

        public java.lang.String header

      • hasGlobColTbl

        public boolean hasGlobColTbl

      • colorResolution

        public int colorResolution

      • sortFlag

        public boolean sortFlag

      • sizeOfGlobColTbl

        public int sizeOfGlobColTbl

      • bgColIndex

        public int bgColIndex

      • pxAspectRatio

        public int pxAspectRatio

      • globalColTbl

        public int[] globalColTbl

      • appId

        public java.lang.String appId

      • appAuthCode

        public java.lang.String appAuthCode

      • repetitions

        public int repetitions

    • Constructor Detail

      • GifImage

        public GifImage()

    • Method Detail

      • getBackgroundColor

        public final int getBackgroundColor()
        Returns the background color of the first frame in this GIF image. If the frame has a local color table, the returned color will be from that table. If not, the color will be from the global color table. Returns 0 if there is neither a local nor a global color table.

        Index of the current frame, 0 to N-1

        Returns:
        32 bit ARGB color in the form 0xAARRGGBB

      • getDelay

        public final int getDelay​(int index)
        If not 0, the delay specifies how many hundredths (1/100) of a second to wait before displaying the frame after the current frame.
        Parameters:
        index - Index of the current frame, 0 to N-1
        Returns:
        Delay as number of hundredths (1/100) of a second

      • getFrame

        public final java.awt.image.BufferedImage getFrame​(int index)
        Parameters:
        index - Index of the frame to return as image, starting from 0. For incremental calls such as [0, 1, 2, ...] the method's run time is O(1) as only one frame is drawn per call. For random access calls such as [7, 12, ...] the run time is O(N+1) with N being the number of previous frames that need to be drawn before N+1 can be drawn on top. Once a frame has been drawn it is being cached and the run time is more or less O(0) to retrieve it from the list.
        Returns:
        A BufferedImage for the specified frame.

      • getFrameCount

        public final int getFrameCount()
        Returns:
        The number of frames contained in this GIF image

      • getHeight

        public final int getHeight()
        Returns:
        The height of the GIF image

      • getWidth

        public final int getWidth()
        Returns:
        The width of the GIF image