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GstGLViewConvert

GstGLViewConvert — convert between steroscopic/multiview video formats

Object Hierarchy

    GEnum
    ╰── GstGLStereoDownmix
    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstGLViewConvert

Description

Convert stereoscopic/multiview video using fragment shaders.

Functions

gst_gl_view_convert_new ()

GstGLViewConvert *
gst_gl_view_convert_new (void);

Returns

a new GstGLViewConvert

Since: 1.6


gst_gl_view_convert_set_caps ()

gboolean
gst_gl_view_convert_set_caps (GstGLViewConvert *viewconvert,
                              GstCaps *in_caps,
                              GstCaps *out_caps);

Initializes viewconvert with the information required for conversion.

Parameters

viewconvert

a GstGLViewConvert

 

in_caps

input GstCaps

 

out_caps

output GstCaps

 

Since: 1.6


gst_gl_view_convert_transform_caps ()

GstCaps *
gst_gl_view_convert_transform_caps (GstGLViewConvert *viewconvert,
                                    GstPadDirection direction,
                                    GstCaps *caps,
                                    GstCaps *filter);

Provides an implementation of GstBaseTransformClass::transform_caps()

Parameters

viewconvert

a GstGLViewConvert

 

direction

a GstPadDirection

 

caps

the GstCaps to transform.

[transfer none]

filter

a set of filter GstCaps.

[transfer none]

Returns

the converted GstCaps.

[transfer full]

Since: 1.6


gst_gl_view_convert_fixate_caps ()

GstCaps *
gst_gl_view_convert_fixate_caps (GstGLViewConvert *viewconvert,
                                 GstPadDirection direction,
                                 GstCaps *caps,
                                 GstCaps *othercaps);

Provides an implementation of GstBaseTransformClass::fixate_caps()

Parameters

viewconvert

a GstGLViewConvert

 

direction

a GstPadDirection

 

caps

the GstCaps of direction .

[transfer none]

othercaps

the GstCaps to fixate.

[transfer full]

Returns

the fixated GstCaps.

[transfer full]

Since: 1.6


gst_gl_view_convert_submit_input_buffer ()

GstFlowReturn
gst_gl_view_convert_submit_input_buffer
                               (GstGLViewConvert *viewconvert,
                                gboolean is_discont,
                                GstBuffer *input);

Submit input to be processed by viewconvert

Parameters

viewconvert

a GstGLViewConvert

 

is_discont

true if we have a discontinuity

 

input

a GstBuffer.

[transfer full]

Returns

a GstFlowReturn

Since: 1.6


gst_gl_view_convert_get_output ()

GstFlowReturn
gst_gl_view_convert_get_output (GstGLViewConvert *viewconvert,
                                GstBuffer **outbuf_ptr);

Retrieve the processed output buffer placing the output in outbuf_ptr .

Parameters

viewconvert

a GstGLViewConvert

 

outbuf_ptr

a GstBuffer.

[out]

Returns

a GstFlowReturn

Since: 1.6


gst_gl_view_convert_perform ()

GstBuffer *
gst_gl_view_convert_perform (GstGLViewConvert *viewconvert,
                             GstBuffer *inbuf);

Converts the data contained by inbuf using the formats specified by the GstCaps passed to gst_gl_view_convert_set_caps()

Parameters

viewconvert

a GstGLViewConvert

 

inbuf

the GstGLMemory filled GstBuffer to convert.

[transfer none]

Returns

a converted GstBuffer or NULL.

[transfer full]

Since: 1.6


gst_gl_view_convert_reset ()

void
gst_gl_view_convert_reset (GstGLViewConvert *viewconvert);

Reset viewconvert to the default state. Further operation will require setting the caps with gst_gl_view_convert_set_caps().

Parameters

viewconvert

a GstGLViewConvert

 

Since: 1.6


gst_gl_view_convert_set_context ()

void
gst_gl_view_convert_set_context (GstGLViewConvert *viewconvert,
                                 GstGLContext *context);

Set context on viewconvert

Parameters

viewconvert

a GstGLViewConvert

 

context

the GstGLContext to set

 

Since: 1.6

Types and Values

enum GstGLStereoDownmix

Output anaglyph type to generate when downmixing to mono

Members

GST_GL_STEREO_DOWNMIX_ANAGLYPH_GREEN_MAGENTA_DUBOIS

Dubois optimised Green-Magenta anaglyph

 

GST_GL_STEREO_DOWNMIX_ANAGLYPH_RED_CYAN_DUBOIS

Dubois optimised Red-Cyan anaglyph

 

GST_GL_STEREO_DOWNMIX_ANAGLYPH_AMBER_BLUE_DUBOIS

Dubois optimised Amber-Blue anaglyph

 

GstGLViewConvert

typedef struct _GstGLViewConvert GstGLViewConvert;

GstGLViewConvert is an opaque struct and should only be accessed through the provided api.


GstGLViewConvertClass

typedef struct {
} GstGLViewConvertClass;

Opaque GstGLViewConvertClass struct

Property Details

The “downmix-mode” property

  “downmix-mode”             GstGLStereoDownmix

Output anaglyph type to generate when downmixing to mono.

Flags: Read / Write

Default value: Dubois optimised Green-Magenta anaglyph


The “input-flags-override” property

  “input-flags-override”     GstVideoMultiviewFlags

Override any input information about multiview layout flags.

Flags: Read / Write


The “input-mode-override” property

  “input-mode-override”      GstVideoMultiviewMode

Override any input information about multiview layout.

Flags: Read / Write

Default value: GST_VIDEO_MULTIVIEW_MODE_NONE


The “output-flags-override” property

  “output-flags-override”    GstVideoMultiviewFlags

Override automatic negotiation for output multiview layout flags.

Flags: Read / Write


The “output-mode-override” property

  “output-mode-override”     GstVideoMultiviewMode

Override automatic output mode selection for multiview layout.

Flags: Read / Write

Default value: GST_VIDEO_MULTIVIEW_MODE_NONE

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