GstHwVideoBufferFactory.h File Reference

#include <QtCore/qglobal.h>
#include <QtMultimedia/QVideoFrameFormat>
#include <gst/gst.h>
#include <gst/video/video-info.h>
#include <memory>

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Enumerations
enum class	HwVideoBufferPath {   None , DmaBuf , GlMemory , D3D11 ,   D3D12 , IOSurface , AHardwareBuffer }
	Identifies which GPU path was chosen; used by the adapter to increment the right counter. More...

Functions
std::unique_ptr< QHwVideoBuffer >	makeHwVideoBuffer (GstSample *sample, const GstVideoInfo &info, QVideoFrameFormat format, bool gpuEnabled, void *eglDisplay, void *ahbEglDisplay, HwVideoBufferPath &matchedPath)

Enumeration Type Documentation

HwVideoBufferPath

enum class HwVideoBufferPath

strong

Identifies which GPU path was chosen; used by the adapter to increment the right counter.

Enumerator
None
DmaBuf
GlMemory
D3D11
D3D12
IOSurface
AHardwareBuffer

Definition at line 18 of file GstHwVideoBufferFactory.h.

Function Documentation

makeHwVideoBuffer()

std::unique_ptr< QHwVideoBuffer > makeHwVideoBuffer	(	GstSample *	sample,
		const GstVideoInfo &	info,
		QVideoFrameFormat	format,
		bool	gpuEnabled,
		void *	eglDisplay,
		void *	ahbEglDisplay,
		HwVideoBufferPath &	matchedPath
	)

Factory that selects the appropriate zero-copy QHwVideoBuffer for a GstSample.

Returns nullptr if no compiled GPU path matches the buffer's memory type, in which case the caller should fall back to the CPU memcpy path. gpuEnabled must be true for any GPU path to be attempted.

Definition at line 40 of file GstHwVideoBufferFactory.cc.

References AHardwareBuffer, D3D11, D3D12, DmaBuf, GlMemory, IOSurface, and None.