glviewconvert

Convert stereoscopic video between different representations using fragment shaders.

The element can use either property settings or caps negotiation to choose the input and output formats to process.

Examples

 gst-launch-1.0 videotestsrc ! glupload ! glviewconvert ! glimagesink

Simple placebo example demonstrating identity passthrough of mono video

 gst-launch-1.0 videotestsrc pattern=checkers-1 ! glupload ! \
     glviewconvert input-mode-override=side-by-side ! glimagesink -v

Force re-interpretation of the input checkers pattern as a side-by-side stereoscopic image and display in glimagesink. FBO (Frame Buffer Object) and GLSL (OpenGL Shading Language) are required.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseTransform
                    ╰──GstGLBaseFilter
                        ╰──GstGLFilter
                            ╰──glviewconvert

Factory details

Authors: – Jan Schmidt , Matthew Waters

Classification: – Filter

Rank – none

Plugin – opengl

Package – GStreamer Base Plug-ins

Pad Templates

sink

video/x-raw(ANY):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

video/x-raw(memory:GLMemory):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

Presence – always

Direction – sink

Object type – GstPad

src

video/x-raw(memory:GLMemory):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

video/x-raw(ANY):
         format: RGBA
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 texture-target: 2D

Presence – always

Direction – src

Object type – GstPad

Properties

downmix-mode 

“downmix-mode” GstGLStereoDownmix *

Output anaglyph type to generate when downmixing to mono

Flags : Read / Write

Default value : green-magenta-dubois (0)

input-flags-override 

“input-flags-override” GstVideoMultiviewFlags *

Override any input information about multiview layout flags

Flags : Read / Write

Default value : none

input-mode-override 

“input-mode-override” GstVideoMultiviewFramePacking *

Override any input information about multiview layout

Flags : Read / Write

Default value : none (-1)

output-flags-override 

“output-flags-override” GstVideoMultiviewFlags *

Override automatic negotiation for output multiview layout flags

Flags : Read / Write

Default value : none

output-mode-override 

“output-mode-override” GstVideoMultiviewMode *

Override automatic output mode selection for multiview layout

Flags : Read / Write

Default value : none (-1)

Named constants

Glstereo-downmix

Members

green-magenta-dubois (0) – GST_GL_STEREO_DOWNMIX_ANAGLYPH_GREEN_MAGENTA_DUBOIS
red-cyan-dubois (1) – GST_GL_STEREO_DOWNMIX_ANAGLYPH_RED_CYAN_DUBOIS
amber-blue-dubois (2) – GST_GL_STEREO_DOWNMIX_ANAGLYPH_AMBER_BLUE_DUBOIS

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