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GStreamer Base Plugins 0.10 Library Reference Manual | ![]() |
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#include <gst/video/gstvideosink.h> GstVideoSink; GstVideoSinkClass; GstVideoRectangle; #define GST_VIDEO_SINK_HEIGHT (obj) #define GST_VIDEO_SINK_PAD (obj) #define GST_VIDEO_SINK_WIDTH (obj) void gst_video_sink_center_rect (GstVideoRectangle src, GstVideoRectangle dst, GstVideoRectangle *result, gboolean scaling);
Provides useful functions and a base class for video sinks.
GstVideoSink will configure the default base sink to drop frames that arrive later than 20ms as this is considered the default threshold for observing out-of-sync frames.
typedef struct { GstBaseSinkClass parent_class; gpointer _gst_reserved[GST_PADDING]; } GstVideoSinkClass;
typedef struct { gint x; gint y; gint w; gint h; } GstVideoRectangle;
Helper structure representing a rectangular area.
#define GST_VIDEO_SINK_HEIGHT(obj) (GST_VIDEO_SINK_CAST (obj)->height)
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#define GST_VIDEO_SINK_PAD(obj) GST_BASE_SINK_PAD(obj)
Get the sink GstPad of obj
.
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a GstVideoSink |
void gst_video_sink_center_rect (GstVideoRectangle src, GstVideoRectangle dst, GstVideoRectangle *result, gboolean scaling);
Takes src
rectangle and position it at the center of dst
rectangle with or
without scaling
. It handles clipping if the src
rectangle is bigger than
the dst
one and scaling
is set to FALSE.
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the GstVideoRectangle describing the source area |
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the GstVideoRectangle describing the destination area |
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a pointer to a GstVideoRectangle which will receive the result area |
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a gboolean indicating if scaling should be applied or not |