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decodebin3

decodebin3

Description

GstBin that auto-magically constructs a decoding pipeline using available decoders and demuxers via auto-plugging. The output is raw audio, video or subtitle streams.

decodebin3 differs from the previous decodebin (decodebin2) in important ways:

  • supports publication and selection of stream information via GstStreamCollection messages and GST_EVENT_SELECT_STREAM events.

  • dynamically switches stream connections internally, and reuses decoder elements when stream selections change, so that in the normal case it maintains 1 decoder of each type (video/audio/subtitle) and only creates new elements when streams change and an existing decoder is not capable of handling the new format.

  • supports multiple input pads for the parallel decoding of auxilliary streams not muxed with the primary stream.

  • does not handle network stream buffering. decodebin3 expects that network stream buffering is handled upstream, before data is passed to it.

decodebin3 is still experimental API and a technology preview. Its behaviour and exposed API is subject to change.

Synopsis

Element Information

plugin

playback

author

Edward Hervey <edward@centricular.com>

class

Generic/Bin/Decoder

Element Pads

name

sink

direction

sink

presence

always

details

ANY

name

sink_%u

direction

sink

presence

request

details

ANY

name

audio_%u

direction

source

presence

sometimes

details

ANY

name

src_%u

direction

source

presence

sometimes

details

ANY

name

text_%u

direction

source

presence

sometimes

details

ANY

name

video_%u

direction

source

presence

sometimes

details

ANY

Functions

Types and Values

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