Module uk.co.caprica.vlcj

Package uk.co.caprica.vlcj.player.embedded.videosurface.callback

Interface RenderCallback

All Known Implementing Classes:

RenderCallbackAdapter

public interface RenderCallback

Specification for a component that wishes to be called back to process video frames.

The render call-back provides access to the native memory buffer, if instead the full RGB integer data is required for the full video frame then consider using RenderCallbackAdapter.

The render call-back is invoked by a native thread.

See Also:

• RenderCallbackAdapter

Method Summary

Modifier and Type	Method	Description
void	display(MediaPlayer mediaPlayer, ByteBuffer[] nativeBuffers, BufferFormat bufferFormat, int displayWidth, int displayHeight)	Call-back when ready to display a video frame.
void	lock(MediaPlayer mediaPlayer)	Lock the video buffer prior to receiving a new frame.
void	unlock(MediaPlayer mediaPlayer)	Unlock the video buffer after receiving a frame.

Method Details

lock

void lock(MediaPlayer mediaPlayer)

Lock the video buffer prior to receiving a new frame.

Implementations of this method must execute as quickly as possible.

Parameters:

mediaPlayer - media player to which the event relates

display

void display(MediaPlayer mediaPlayer,
 ByteBuffer[] nativeBuffers,
 BufferFormat bufferFormat,
 int displayWidth,
 int displayHeight)

Call-back when ready to display a video frame.

Implementations of this method must execute as quickly as possible.

Parameters:

mediaPlayer - media player to which the event relates

nativeBuffers - video data for one frame

bufferFormat - information about the format of the buffer used

displayWidth - pixel width of the video, may be different from buffer width

displayHeight - pixel height of the video, may be different from buffer height

unlock

void unlock(MediaPlayer mediaPlayer)

Unlock the video buffer after receiving a frame.

Implementations of this method must execute as quickly as possible.

Parameters:

mediaPlayer - media player to which the event relates