GstSurfaceConverter

GstSurfaceConverter — Interface for GstSurfaceBuffer convertion

Functions

Types and Values

Description

Objects implementing this interface are used as a convertion context. This allow element optimizing the upload by keeping required resources between uploads. The context must be discarded when the pipeline goes to GST_STATE_NULL or renewed whenever the caps are changed.

The GstVideoContext interface is unstable API and may change in future. One can define GST_USE_UNSTABLE_API to acknowledge and avoid this warning.

Example uploading to GL texture

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if (G_UNLIKELY (priv->converter == NULL))
  priv->converter = gst_surface_buffer_create_converter (surface, "opengl", &value);

gst_surface_converter_uplaod (priv->converter, surface);

Functions

gst_surface_converter_get_type ()

GType
gst_surface_converter_get_type (void);

gst_surface_converter_upload ()

gboolean
gst_surface_converter_upload (GstSurfaceConverter *converter,
                              GstSurfaceBuffer *buffer);

Convert and uploads the GstSurfaceBuffer to the converter destination.

Parameters

converter

a GstSurfaceConverter

 

buffer

the GstSurfaceBuffer to upload

 

Returns

TRUE on success, FALSE otherwise

Types and Values

GstSurfaceConverter

typedef struct _GstSurfaceConverter GstSurfaceConverter;

struct GstSurfaceConverterInterface

struct GstSurfaceConverterInterface {
  GTypeInterface parent;

  gboolean (*upload) (GstSurfaceConverter *converter,
                      GstSurfaceBuffer *buffer);
};

GstSurfaceConverterInterface interface.

Members

GTypeInterface parent;

parent interface type.

 

upload ()

vmethod to upload GstSurfaceBuffer.