org.webrtc

Class NV12Buffer

java.lang.Object

org.webrtc.NV12Buffer

All Implemented Interfaces:

RefCounted, VideoFrame.Buffer

public class NV12Buffer
extends java.lang.Object
implements VideoFrame.Buffer

Constructor Summary

Constructors

Constructor and Description
NV12Buffer(int width, int height, int stride, int sliceHeight, java.nio.ByteBuffer buffer, java.lang.Runnable releaseCallback)

Method Summary

Modifier and Type	Method and Description
VideoFrame.Buffer	cropAndScale(int cropX, int cropY, int cropWidth, int cropHeight, int scaleWidth, int scaleHeight) Crops a region defined by |cropx|, |cropY|, |cropWidth| and |cropHeight|.
int	getHeight()
int	getWidth() Resolution of the buffer in pixels.
void	release() Decreases ref count by one.
void	retain() Increases ref count by one.
VideoFrame.I420Buffer	toI420() Returns a memory-backed frame in I420 format.

Methods inherited from class java.lang.Object

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

Constructor Detail

NV12Buffer

public NV12Buffer(int width,
                  int height,
                  int stride,
                  int sliceHeight,
                  java.nio.ByteBuffer buffer,
                  @Nullable
                  java.lang.Runnable releaseCallback)

Method Detail

getWidth

public int getWidth()

Description copied from interface: VideoFrame.Buffer

Resolution of the buffer in pixels.

Specified by:

getWidth in interface VideoFrame.Buffer

getHeight

public int getHeight()

Specified by:

getHeight in interface VideoFrame.Buffer

toI420

public VideoFrame.I420Buffer toI420()

Description copied from interface: VideoFrame.Buffer

Returns a memory-backed frame in I420 format. If the pixel data is in another format, a conversion will take place. All implementations must provide a fallback to I420 for compatibility with e.g. the internal WebRTC software encoders.

Specified by:

toI420 in interface VideoFrame.Buffer

retain

public void retain()

Description copied from interface: RefCounted

Increases ref count by one.

Specified by:

retain in interface RefCounted

Specified by:

retain in interface VideoFrame.Buffer

release

public void release()

Description copied from interface: RefCounted

Decreases ref count by one. When the ref count reaches zero, resources related to the object will be freed.

Specified by:

release in interface RefCounted

Specified by:

release in interface VideoFrame.Buffer

cropAndScale

public VideoFrame.Buffer cropAndScale(int cropX,
                                      int cropY,
                                      int cropWidth,
                                      int cropHeight,
                                      int scaleWidth,
                                      int scaleHeight)

Description copied from interface: VideoFrame.Buffer

Crops a region defined by |cropx|, |cropY|, |cropWidth| and |cropHeight|. Scales it to size |scaleWidth| x |scaleHeight|.

Specified by:

cropAndScale in interface VideoFrame.Buffer