org.bytedeco.opencv.opencv_cudacodec

Class VideoWriter

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.opencv.opencv_cudacodec.VideoWriter

All Implemented Interfaces:

AutoCloseable

@Name(value="cv::cudacodec::VideoWriter")
 @Properties(inherit=opencv_cudacodec.class)
public class VideoWriter
extends Pointer

\brief Video writer interface, see createVideoWriter().

Available if Nvidia's Video Codec SDK is installed.

Only Codec::H264 and Codec::HEVC are supported with encoding support dependent on the GPU, refer to the Nvidia Video Codec SDK Video Encode and Decode GPU Support Matrix for details.

\note - An example on how to use the VideoWriter class can be found at opencv_source_code/samples/gpu/video_writer.cpp

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator, Pointer.ReferenceCounter

Field Summary

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
VideoWriter(Pointer p) Pointer cast constructor.

Method Summary

Modifier and Type	Method and Description
EncoderParams	getEncoderParams() \brief Retrieve the encoding parameters.
void	release() \brief Waits until the encoding process has finished before calling EncoderCallback::onEncodingFinished().
void	write(GpuMat frame)
void	write(Mat frame) \brief Writes the next video frame.
void	write(UMat frame)

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, availablePhysicalBytes, calloc, capacity, capacity, close, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, formatBytes, free, getDirectBufferAddress, getPointer, getPointer, getPointer, getPointer, hashCode, interruptDeallocatorThread, isNull, isNull, limit, limit, malloc, maxBytes, maxPhysicalBytes, memchr, memcmp, memcpy, memmove, memset, offsetAddress, offsetof, offsetof, parseBytes, physicalBytes, physicalBytesInaccurate, position, position, put, realloc, referenceCount, releaseReference, retainReference, setNull, sizeof, sizeof, toString, totalBytes, totalCount, totalPhysicalBytes, withDeallocator, zero

Methods inherited from class java.lang.Object

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

Constructor Detail

VideoWriter

public VideoWriter(Pointer p)

Pointer cast constructor. Invokes Pointer(Pointer).

Method Detail

write

public void write(@ByVal
                  Mat frame)

\brief Writes the next video frame.

Parameters:

frame - The framet to be written.

The method encodes the specified image to a video stream. The image must have the same size and the same surface format as has been specified when opening the video writer.

write

public void write(@ByVal
                  UMat frame)

write

public void write(@ByVal
                  GpuMat frame)

getEncoderParams

@ByVal
public EncoderParams getEncoderParams()

\brief Retrieve the encoding parameters.

release

public void release()

\brief Waits until the encoding process has finished before calling EncoderCallback::onEncodingFinished().