GstGLDownload

GstGLDownload — an object that downloads GL textures

Functions

Types and Values

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstGLDownload

Description

GstGLDownload is an object that downloads GL textures into system memory.

A GstGLDownload can be created with gst_gl_download_new()

Functions

gst_gl_download_new ()

GstGLDownload *
gst_gl_download_new (GstGLContext *context);

Parameters

context

a GstGLContext

 

Returns

a new GstGLDownload object


gst_gl_download_set_format ()

void
gst_gl_download_set_format (GstGLDownload *download,
                            GstVideoInfo *out_info);

Initializes download with the information required for download.

Parameters

download

a GstGLDownload

 

out_info

a GstVideoInfo

 

gst_gl_download_transform_caps ()

GstCaps *
gst_gl_download_transform_caps (GstGLContext *convert,
                                GstPadDirection direction,
                                GstCaps *caps,
                                GstCaps *filter);

gst_gl_download_perform_with_data ()

gboolean
gst_gl_download_perform_with_data (GstGLDownload *download,
                                   GLuint texture_id,
                                   GLuint texture_target,
                                   gpointer data[GST_VIDEO_MAX_PLANES]);

Downloads texture_id into data . data size and format is specified by the GstVideoFormat passed to gst_gl_download_set_format()

This method can only be used for download a single view.

Parameters

download

a GstGLDownload

 

texture_id

the texture id to download

 

texture_target

the GL texture target

 

data

where the downloaded data should go.

[out]

Returns

whether the download was successful

Types and Values

GstGLDownload

typedef struct _GstGLDownload GstGLDownload;

Opaque GstGLDownload object

See Also

GstGLUpload, GstGLMemory