public final class TJ
extends java.lang.Object
| Modifier and Type | Field and Description | 
|---|---|
| static int | CS_CMYKCMYK colorspace. | 
| static int | CS_GRAYGrayscale colorspace. | 
| static int | CS_RGBRGB colorspace. | 
| static int | CS_YCbCrYCbCr colorspace. | 
| static int | CS_YCCKYCCK colorspace. | 
| static int | FLAG_ACCURATEDCTUse the most accurate DCT/IDCT algorithm available in the underlying
 codec. | 
| static int | FLAG_BOTTOMUPThe uncompressed source/destination image is stored in bottom-up (Windows,
 OpenGL) order, not top-down (X11) order. | 
| static int | FLAG_FASTDCTUse the fastest DCT/IDCT algorithm available in the underlying codec. | 
| static int | FLAG_FASTUPSAMPLEWhen decompressing an image that was compressed using chrominance
 subsampling, use the fastest chrominance upsampling algorithm available in
 the underlying codec. | 
| static int | FLAG_FORCEMMXDeprecated.  | 
| static int | FLAG_FORCESSEDeprecated.  | 
| static int | FLAG_FORCESSE2Deprecated.  | 
| static int | FLAG_FORCESSE3Deprecated.  | 
| static int | NUMCSThe number of JPEG colorspaces | 
| static int | NUMPFThe number of pixel formats | 
| static int | NUMSAMPThe number of chrominance subsampling options | 
| static int | PF_ABGRABGR pixel format. | 
| static int | PF_ARGBARGB pixel format. | 
| static int | PF_BGRBGR pixel format. | 
| static int | PF_BGRABGRA pixel format. | 
| static int | PF_BGRXBGRX pixel format. | 
| static int | PF_CMYKCMYK pixel format. | 
| static int | PF_GRAYGrayscale pixel format. | 
| static int | PF_RGBRGB pixel format. | 
| static int | PF_RGBARGBA pixel format. | 
| static int | PF_RGBXRGBX pixel format. | 
| static int | PF_XBGRXBGR pixel format. | 
| static int | PF_XRGBXRGB pixel format. | 
| static int | SAMP_4114:1:1 chrominance subsampling. | 
| static int | SAMP_4204:2:0 chrominance subsampling. | 
| static int | SAMP_4224:2:2 chrominance subsampling. | 
| static int | SAMP_4404:4:0 chrominance subsampling. | 
| static int | SAMP_4444:4:4 chrominance subsampling (no chrominance subsampling). | 
| static int | SAMP_GRAYGrayscale. | 
| Constructor and Description | 
|---|
| TJ() | 
| Modifier and Type | Method and Description | 
|---|---|
| static int | bufSize(int width,
       int height,
       int jpegSubsamp)Returns the maximum size of the buffer (in bytes) required to hold a JPEG
 image with the given width, height, and level of chrominance subsampling. | 
| static int | bufSizeYUV(int width,
          int height,
          int subsamp)Deprecated. 
 Use  bufSizeYUV(int, int, int, int)instead. | 
| static int | bufSizeYUV(int width,
          int pad,
          int height,
          int subsamp)Returns the size of the buffer (in bytes) required to hold a YUV planar
 image with the given width, height, and level of chrominance subsampling. | 
| static int | getBlueOffset(int pixelFormat)For the given pixel format, returns the number of bytes that the blue
 component is offset from the start of the pixel. | 
| static int | getGreenOffset(int pixelFormat)For the given pixel format, returns the number of bytes that the green
 component is offset from the start of the pixel. | 
| static int | getMCUHeight(int subsamp)Returns the MCU block height for the given level of chrominance
 subsampling. | 
| static int | getMCUWidth(int subsamp)Returns the MCU block width for the given level of chrominance
 subsampling. | 
| static int | getPixelSize(int pixelFormat)Returns the pixel size (in bytes) for the given pixel format. | 
| static int | getRedOffset(int pixelFormat)For the given pixel format, returns the number of bytes that the red
 component is offset from the start of the pixel. | 
| static TJScalingFactor[] | getScalingFactors()Returns a list of fractional scaling factors that the JPEG decompressor in
 this implementation of TurboJPEG supports. | 
| static int | planeHeight(int componentID,
           int height,
           int subsamp)Returns the plane height of a YUV image plane with the given parameters. | 
| static int | planeSizeYUV(int componentID,
            int width,
            int stride,
            int height,
            int subsamp)Returns the size of the buffer (in bytes) required to hold a YUV image
 plane with the given parameters. | 
| static int | planeWidth(int componentID,
          int width,
          int subsamp)Returns the plane width of a YUV image plane with the given parameters. | 
public static final int NUMSAMP
public static final int SAMP_444
public static final int SAMP_422
public static final int SAMP_420
public static final int SAMP_GRAY
public static final int SAMP_440
public static final int SAMP_411
public static final int NUMPF
public static final int PF_RGB
public static final int PF_BGR
public static final int PF_RGBX
public static final int PF_BGRX
public static final int PF_XBGR
public static final int PF_XRGB
public static final int PF_GRAY
public static final int PF_RGBA
PF_RGBX, except that when
 decompressing, the X byte is guaranteed to be 0xFF, which can be
 interpreted as an opaque alpha channel.public static final int PF_BGRA
PF_BGRX, except that when
 decompressing, the X byte is guaranteed to be 0xFF, which can be
 interpreted as an opaque alpha channel.public static final int PF_ABGR
PF_XBGR, except that when
 decompressing, the X byte is guaranteed to be 0xFF, which can be
 interpreted as an opaque alpha channel.public static final int PF_ARGB
PF_XRGB, except that when
 decompressing, the X byte is guaranteed to be 0xFF, which can be
 interpreted as an opaque alpha channel.public static final int PF_CMYK
CS_YCCK) and
 decompressing YCCK JPEG images into CMYK pixels.public static final int NUMCS
public static final int CS_RGB
public static final int CS_YCbCr
public static final int CS_GRAY
public static final int CS_CMYK
public static final int CS_YCCK
public static final int FLAG_BOTTOMUP
@Deprecated public static final int FLAG_FORCEMMX
@Deprecated public static final int FLAG_FORCESSE
@Deprecated public static final int FLAG_FORCESSE2
@Deprecated public static final int FLAG_FORCESSE3
public static final int FLAG_FASTUPSAMPLE
public static final int FLAG_FASTDCT
public static final int FLAG_ACCURATEDCT
public static int getMCUWidth(int subsamp)
subsamp - the level of chrominance subsampling (one of
 SAMP_*)public static int getMCUHeight(int subsamp)
subsamp - the level of chrominance subsampling (one of
 SAMP_*)public static int getPixelSize(int pixelFormat)
pixelFormat - the pixel format (one of PF_*)public static int getRedOffset(int pixelFormat)
TJ.PF_BGRX is stored in char pixel[],
 then the red component will be
 pixel[TJ.getRedOffset(TJ.PF_BGRX)].pixelFormat - the pixel format (one of PF_*)public static int getGreenOffset(int pixelFormat)
TJ.PF_BGRX is stored in char pixel[],
 then the green component will be
 pixel[TJ.getGreenOffset(TJ.PF_BGRX)].pixelFormat - the pixel format (one of PF_*)public static int getBlueOffset(int pixelFormat)
TJ.PF_BGRX is stored in char pixel[],
 then the blue component will be
 pixel[TJ.getBlueOffset(TJ.PF_BGRX)].pixelFormat - the pixel format (one of PF_*)public static int bufSize(int width,
          int height,
          int jpegSubsamp)
width - the width (in pixels) of the JPEG imageheight - the height (in pixels) of the JPEG imagejpegSubsamp - the level of chrominance subsampling to be used when
 generating the JPEG image (one of TJ.SAMP_*)public static int bufSizeYUV(int width,
             int pad,
             int height,
             int subsamp)
width - the width (in pixels) of the YUV imagepad - the width of each line in each plane of the image is padded to
 the nearest multiple of this number of bytes (must be a power of 2.)height - the height (in pixels) of the YUV imagesubsamp - the level of chrominance subsampling used in the YUV
 image (one of TJ.SAMP_*)@Deprecated
public static int bufSizeYUV(int width,
                        int height,
                        int subsamp)
bufSizeYUV(int, int, int, int) instead.public static int planeSizeYUV(int componentID,
               int width,
               int stride,
               int height,
               int subsamp)
componentID - ID number of the image plane (0 = Y, 1 = U/Cb,
 2 = V/Cr)width - width (in pixels) of the YUV image.  NOTE: this is the width
 of the whole image, not the plane width.stride - bytes per line in the image plane.height - height (in pixels) of the YUV image.  NOTE: this is the
 height of the whole image, not the plane height.subsamp - the level of chrominance subsampling used in the YUV
 image (one of TJ.SAMP_*)public static int planeWidth(int componentID,
             int width,
             int subsamp)
YUVImage for a description of plane width.componentID - ID number of the image plane (0 = Y, 1 = U/Cb,
 2 = V/Cr)width - width (in pixels) of the YUV imagesubsamp - the level of chrominance subsampling used in the YUV image
 (one of TJ.SAMP_*)public static int planeHeight(int componentID,
              int height,
              int subsamp)
YUVImage for a description of plane height.componentID - ID number of the image plane (0 = Y, 1 = U/Cb,
 2 = V/Cr)height - height (in pixels) of the YUV imagesubsamp - the level of chrominance subsampling used in the YUV image
 (one of TJ.SAMP_*)public static TJScalingFactor[] getScalingFactors()