GstGLUpload: GStreamer Base Plugins 1.0 Library Reference Manual

GstGLUpload

GstGLUpload — an object that uploads to GL textures

Functions

GstGLUpload *	gst_gl_upload_new ()
void	gst_gl_upload_set_context ()
void	gst_gl_upload_get_caps ()
gboolean	gst_gl_upload_set_caps ()
void	gst_gl_upload_propose_allocation ()
GstCaps *	gst_gl_upload_transform_caps ()
GstGLUploadReturn	gst_gl_upload_perform_with_buffer ()
GstCaps *	gst_gl_upload_get_input_template_caps ()

Types and Values

	GstGLUpload
enum	GstGLUploadReturn

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstGLUpload

Includes

#include <gst/gl/gl.h>

Description

GstGLUpload is an object that uploads data from system memory into GL textures.

A GstGLUpload can be created with gst_gl_upload_new()

Functions

gst_gl_upload_new ()

GstGLUpload *
gst_gl_upload_new (GstGLContext *context);

Parameters

context

a GstGLContext

Returns

a new GstGLUpload object.

[transfer full]

gst_gl_upload_set_context ()

void
gst_gl_upload_set_context (GstGLUpload *upload,
                           GstGLContext *context);

gst_gl_upload_get_caps ()

void
gst_gl_upload_get_caps (GstGLUpload *upload,
                        GstCaps **in_caps,
                        GstCaps **out_caps);

Parameters

upload	a GstGLUpload
in_caps	the input GstCaps.	[transfer full][allow-none][out]
out_caps	the output GstCaps.	[transfer full][allow-none][out]

gst_gl_upload_set_caps ()

gboolean
gst_gl_upload_set_caps (GstGLUpload *upload,
                        GstCaps *in_caps,
                        GstCaps *out_caps);

Initializes upload with the information required for upload.

Parameters

upload	a GstGLUpload
in_caps	input GstCaps
out_caps	output GstCaps

Returns

whether in_caps and out_caps could be set on upload

gst_gl_upload_propose_allocation ()

void
gst_gl_upload_propose_allocation (GstGLUpload *upload,
                                  GstQuery *decide_query,
                                  GstQuery *query);

Adds the required allocation parameters to support uploading.

Parameters

upload	a GstGLUpload
decide_query	a GstQuery from a decide allocation.	[allow-none]
query	the proposed allocation query

gst_gl_upload_transform_caps ()

GstCaps *
gst_gl_upload_transform_caps (GstGLUpload *upload,
                              GstGLContext *context,
                              GstPadDirection direction,
                              GstCaps *caps,
                              GstCaps *filter);

gst_gl_upload_perform_with_buffer ()

GstGLUploadReturn
gst_gl_upload_perform_with_buffer (GstGLUpload *upload,
                                   GstBuffer *buffer,
                                   GstBuffer **outbuf_ptr);

Uploads buffer using the transformation specified by gst_gl_upload_set_caps() creating a new GstBuffer in outbuf_ptr .

Parameters

upload	a GstGLUpload
buffer	input GstBuffer
outbuf_ptr	resulting GstBuffer.	[out]

Returns

whether the upload was successful

gst_gl_upload_get_input_template_caps ()

GstCaps *
gst_gl_upload_get_input_template_caps (void);

Types and Values

GstGLUpload

typedef struct _GstGLUpload GstGLUpload;

Opaque GstGLUpload object

enum GstGLUploadReturn

Members

GST_GL_UPLOAD_DONE	No further processing required
GST_GL_UPLOAD_ERROR	An unspecified error occured
GST_GL_UPLOAD_UNSUPPORTED	The configuration is unsupported.
GST_GL_UPLOAD_RECONFIGURE	This element requires a reconfiguration.

GstGLUpload

Functions

Types and Values

Object Hierarchy

Includes

Description

Functions

gst_gl_upload_new ()

Parameters

Returns

gst_gl_upload_set_context ()

gst_gl_upload_get_caps ()

Parameters

gst_gl_upload_set_caps ()

Parameters

Returns

gst_gl_upload_propose_allocation ()

Parameters

gst_gl_upload_transform_caps ()

gst_gl_upload_perform_with_buffer ()

Parameters

Returns

gst_gl_upload_get_input_template_caps ()

Types and Values

GstGLUpload

enum GstGLUploadReturn

Members

See Also