a52dec

Dolby Digital (AC-3) audio decoder.

Example launch line

 gst-launch-1.0 dvdreadsrc title=1 ! mpegpsdemux ! a52dec ! audioconvert ! audioresample ! autoaudiosink

Play audio part of a dvd title.

 gst-launch-1.0 filesrc location=abc.ac3 ! ac3parse ! a52dec ! audioconvert ! audioresample ! autoaudiosink

Decode and play a stand alone AC-3 file.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstAudioDecoder
                    ╰──a52dec

Factory details

Authors: – David I. Lehn

Classification: – Codec/Decoder/Audio/Converter

Rank – secondary

Plugin – a52dec

Package – GStreamer Ugly Plug-ins

Pad Templates

sink

audio/x-ac3:
audio/ac3:
audio/x-private1-ac3:

Presence – always

Direction – sink

Object type – GstPad

src

audio/x-raw:
         format: F32LE
         layout: interleaved
           rate: [ 4000, 96000 ]
       channels: [ 1, 6 ]

Presence – always

Direction – src

Object type – GstPad

Properties

drc 

“drc” gboolean

Use Dynamic Range Compression

Flags : Read / Write

Default value : false

lfe 

“lfe” gboolean

LFE

Flags : Read / Write

Default value : false

mode 

“mode” GstA52DecMode *

Decoding Mode (default 3f2r)

Flags : Read / Write

Default value : (0)

Named constants

GstA52DecMode

Members

mono (1) – Mono
stereo (2) – Stereo
3f (3) – 3 Front
2f1r (4) – 2 Front, 1 Rear
3f1r (5) – 3 Front, 1 Rear
2f2r (6) – 2 Front, 2 Rear
3f2r (7) – 3 Front, 2 Rear
dolby (10) – Dolby

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