net.sf.theora_java.jna
Class TheoraLibrary.yuv_buffer

java.lang.Object
  com.sun.jna.Structure
      net.sf.theora_java.jna.TheoraLibrary.yuv_buffer

Enclosing interface:

TheoraLibrary

public static class TheoraLibrary.yuv_buffer
extends com.sun.jna.Structure

A YUV buffer for passing uncompressed frames to and from the codec. This holds a Y'CbCr frame in planar format. The CbCr planes can be subsampled and have their own separate dimensions and row stride offsets. Note that the strides may be negative in some configurations. For theora the width and height of the largest plane must be a multiple of 16. The actual meaningful picture size and offset are stored in the theora_info structure; frames returned by the decoder may need to be cropped for display. All samples are 8 bits. Within each plane samples are ordered by row from the top of the frame to the bottom. Within each row samples are ordered from left to right.

Field Summary

com.sun.jna.Pointer	u < Pointer to start of luminance data
int	uv_height < Height of the Cb and Cr chroma planes
int	uv_stride < Width of the chroma planes
int	uv_width < Offset in bytes between successive rows
com.sun.jna.Pointer	v < Pointer to start of Cb data
com.sun.jna.Pointer	y < Offset between successive chroma rows
int	y_height < Width of the Y' luminance plane
int	y_stride < Height of the luminance plane
int	y_width

Fields inherited from class com.sun.jna.Structure

ALIGN_DEFAULT, ALIGN_GNUC, ALIGN_MSVC, ALIGN_NONE, CALCULATE_SIZE

Constructor Summary

TheoraLibrary.yuv_buffer()

Method Summary

Methods inherited from class com.sun.jna.Structure

allocateMemory, allocateMemory, clear, equals, getMemory, getNativeAlignment, getNativeSize, getNativeSize, getPointer, hashCode, read, setAlignType, setTypeMapper, size, toArray, toArray, toString, useMemory, useMemory, write

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

y_width

public int y_width

y_height

public int y_height

< Width of the Y' luminance plane

y_stride

public int y_stride

< Height of the luminance plane

uv_width

public int uv_width

< Offset in bytes between successive rows

uv_height

public int uv_height

< Height of the Cb and Cr chroma planes

uv_stride

public int uv_stride

< Width of the chroma planes

y

public com.sun.jna.Pointer y

< Offset between successive chroma rows

u

public com.sun.jna.Pointer u

< Pointer to start of luminance data

v

public com.sun.jna.Pointer v

< Pointer to start of Cb data

Constructor Detail

TheoraLibrary.yuv_buffer

public TheoraLibrary.yuv_buffer()