theoradec

This element decodes theora streams into raw video Theora is a royalty-free video codec maintained by the Xiph.org Foundation, based on the VP3 codec.

Example pipeline

 gst-launch-1.0 -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! videoconvert ! videoscale ! autovideosink

This example pipeline will decode an ogg stream and decodes the theora video in it. Refer to the theoraenc example to create the ogg file.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoDecoder
                    ╰──theoradec

Factory details

Authors: – Benjamin Otte , Wim Taymans

Classification: – Codec/Decoder/Video

Rank – primary

Plugin – theora

Package – GStreamer Base Plug-ins

Pad Templates

`sink`

video/x-theora:

Presence – always

Direction – sink

Object type – GstPad

`src`

video/x-raw:
         format: { I420, Y42B, Y444 }
      framerate: [ 0/1, 2147483647/1 ]
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]

Presence – always

Direction – src

Object type – GstPad

Properties

visualize-bit-usage

“visualize-bit-usage” gint

Sets the bitstream breakdown visualization mode. Values influence the width of the bit usage bars to show

Flags : Read / Write

Default value : 0

visualize-macroblock-modes

“visualize-macroblock-modes” gint

Show macroblock mode selection overlaid on image. Value gives a mask for macroblock (MB) modes to show

Flags : Read / Write

Default value : 0

visualize-motion-vectors

“visualize-motion-vectors” gint

Show motion vector selection overlaid on image. Value gives a mask for motion vector (MV) modes to show

Flags : Read / Write

Default value : 0

visualize-quantization-modes

“visualize-quantization-modes” gint

Show adaptive quantization mode selection overlaid on image. Value gives a mask for quantization (QI) modes to show

Flags : Read / Write

Default value : 0

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