GstHwVideoBuffer.h File Reference

#include <QtCore/QLoggingCategory>
#include <QtCore/qglobal.h>
#include <QtMultimedia/QVideoFrame>
#include <QtMultimedia/QVideoFrameFormat>
#include <algorithm>
#include <atomic>
#include <gst/gst.h>
#include <gst/video/video-info.h>
#include <private/qhwvideobuffer_p.h>

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Classes
struct	GstHw::MapDiagnostics
	One-shot warning flags per failure cause; paths with extra causes (D3D, IOSurface) derive and add members. More...
class	GstHwVideoBuffer
	Common base for GStreamer-backed QHwVideoBuffer subclasses. More...

Namespaces
namespace	GstHw

Macros
#define	QGC_HW_WARN_ONCE(LOGCAT, FLAG, ...)
	Logs once via qCWarning(LOGCAT) the first time FLAG flips true; subsequent trips are silent.

Variables
constexpr int	GstHw::kMaxPlanes = 4
	Matches GST_VIDEO_MAX_PLANES (gst-video pins it at 4); single source of truth for every per-platform buffer.

Macro Definition Documentation

QGC_HW_WARN_ONCE

#define QGC_HW_WARN_ONCE	(		LOGCAT,
			FLAG,
			...
	)

Value:

    do {                                                         \
        if (!(FLAG).exchange(true, std::memory_order_relaxed)) { \
            qCWarning(LOGCAT) << __VA_ARGS__;                    \
        }                                                        \
    } while (0)

Logs once via qCWarning(LOGCAT) the first time FLAG flips true; subsequent trips are silent.

Definition at line 32 of file GstHwVideoBuffer.h.