tvi.webrtc

Class YuvHelper

java.lang.Object

tvi.webrtc.YuvHelper

public class YuvHelper
extends java.lang.Object

Wraps libyuv methods to Java. All passed byte buffers must be direct byte buffers.

Constructor Summary

Constructors

Constructor and Description
YuvHelper()

Method Summary

Modifier and Type	Method and Description
static void	ABGRToI420(java.nio.ByteBuffer src, int srcStride, java.nio.ByteBuffer dstY, int dstStrideY, java.nio.ByteBuffer dstU, int dstStrideU, java.nio.ByteBuffer dstV, int dstStrideV, int width, int height) Converts ABGR little endian (rgba in memory) to I420.
static void	copyPlane(java.nio.ByteBuffer src, int srcStride, java.nio.ByteBuffer dst, int dstStride, int width, int height) Helper method for copying a single colour plane.
static void	I420Copy(java.nio.ByteBuffer srcY, int srcStrideY, java.nio.ByteBuffer srcU, int srcStrideU, java.nio.ByteBuffer srcV, int srcStrideV, java.nio.ByteBuffer dstY, int dstStrideY, java.nio.ByteBuffer dstU, int dstStrideU, java.nio.ByteBuffer dstV, int dstStrideV, int width, int height)
static void	I420Copy(java.nio.ByteBuffer srcY, int srcStrideY, java.nio.ByteBuffer srcU, int srcStrideU, java.nio.ByteBuffer srcV, int srcStrideV, java.nio.ByteBuffer dst, int width, int height) Helper method for copying I420 to tightly packed destination buffer.
static void	I420Rotate(java.nio.ByteBuffer srcY, int srcStrideY, java.nio.ByteBuffer srcU, int srcStrideU, java.nio.ByteBuffer srcV, int srcStrideV, java.nio.ByteBuffer dstY, int dstStrideY, java.nio.ByteBuffer dstU, int dstStrideU, java.nio.ByteBuffer dstV, int dstStrideV, int srcWidth, int srcHeight, int rotationMode)
static void	I420Rotate(java.nio.ByteBuffer srcY, int srcStrideY, java.nio.ByteBuffer srcU, int srcStrideU, java.nio.ByteBuffer srcV, int srcStrideV, java.nio.ByteBuffer dst, int srcWidth, int srcHeight, int rotationMode) Helper method for rotating I420 to tightly packed destination buffer.
static void	I420ToNV12(java.nio.ByteBuffer srcY, int srcStrideY, java.nio.ByteBuffer srcU, int srcStrideU, java.nio.ByteBuffer srcV, int srcStrideV, java.nio.ByteBuffer dstY, int dstStrideY, java.nio.ByteBuffer dstUV, int dstStrideUV, int width, int height)
static void	I420ToNV12(java.nio.ByteBuffer srcY, int srcStrideY, java.nio.ByteBuffer srcU, int srcStrideU, java.nio.ByteBuffer srcV, int srcStrideV, java.nio.ByteBuffer dst, int width, int height) Helper method for copying I420 to tightly packed NV12 destination buffer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

YuvHelper

public YuvHelper()

Method Detail

I420Copy

public static void I420Copy(java.nio.ByteBuffer srcY,
                            int srcStrideY,
                            java.nio.ByteBuffer srcU,
                            int srcStrideU,
                            java.nio.ByteBuffer srcV,
                            int srcStrideV,
                            java.nio.ByteBuffer dst,
                            int width,
                            int height)

Helper method for copying I420 to tightly packed destination buffer.

I420ToNV12

public static void I420ToNV12(java.nio.ByteBuffer srcY,
                              int srcStrideY,
                              java.nio.ByteBuffer srcU,
                              int srcStrideU,
                              java.nio.ByteBuffer srcV,
                              int srcStrideV,
                              java.nio.ByteBuffer dst,
                              int width,
                              int height)

Helper method for copying I420 to tightly packed NV12 destination buffer.

I420Rotate

public static void I420Rotate(java.nio.ByteBuffer srcY,
                              int srcStrideY,
                              java.nio.ByteBuffer srcU,
                              int srcStrideU,
                              java.nio.ByteBuffer srcV,
                              int srcStrideV,
                              java.nio.ByteBuffer dst,
                              int srcWidth,
                              int srcHeight,
                              int rotationMode)

Helper method for rotating I420 to tightly packed destination buffer.

copyPlane

public static void copyPlane(java.nio.ByteBuffer src,
                             int srcStride,
                             java.nio.ByteBuffer dst,
                             int dstStride,
                             int width,
                             int height)

Helper method for copying a single colour plane.

ABGRToI420

public static void ABGRToI420(java.nio.ByteBuffer src,
                              int srcStride,
                              java.nio.ByteBuffer dstY,
                              int dstStrideY,
                              java.nio.ByteBuffer dstU,
                              int dstStrideU,
                              java.nio.ByteBuffer dstV,
                              int dstStrideV,
                              int width,
                              int height)

Converts ABGR little endian (rgba in memory) to I420.

I420Copy

public static void I420Copy(java.nio.ByteBuffer srcY,
                            int srcStrideY,
                            java.nio.ByteBuffer srcU,
                            int srcStrideU,
                            java.nio.ByteBuffer srcV,
                            int srcStrideV,
                            java.nio.ByteBuffer dstY,
                            int dstStrideY,
                            java.nio.ByteBuffer dstU,
                            int dstStrideU,
                            java.nio.ByteBuffer dstV,
                            int dstStrideV,
                            int width,
                            int height)

I420ToNV12

public static void I420ToNV12(java.nio.ByteBuffer srcY,
                              int srcStrideY,
                              java.nio.ByteBuffer srcU,
                              int srcStrideU,
                              java.nio.ByteBuffer srcV,
                              int srcStrideV,
                              java.nio.ByteBuffer dstY,
                              int dstStrideY,
                              java.nio.ByteBuffer dstUV,
                              int dstStrideUV,
                              int width,
                              int height)

I420Rotate

public static void I420Rotate(java.nio.ByteBuffer srcY,
                              int srcStrideY,
                              java.nio.ByteBuffer srcU,
                              int srcStrideU,
                              java.nio.ByteBuffer srcV,
                              int srcStrideV,
                              java.nio.ByteBuffer dstY,
                              int dstStrideY,
                              java.nio.ByteBuffer dstU,
                              int dstStrideU,
                              java.nio.ByteBuffer dstV,
                              int dstStrideV,
                              int srcWidth,
                              int srcHeight,
                              int rotationMode)