fdkaacenc

FDK AAC audio encoder

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstAudioEncoder
                    ╰──fdkaacenc

Implemented interfaces

Factory details

Authors: – Sebastian Dröge

Classification: – Codec/Encoder/Audio/Converter

Rank – primary

Plugin – fdkaac

Package – GStreamer Bad Plug-ins

Pad Templates

sink

audio/x-raw:
         format: S16LE
         layout: interleaved
           rate: { (int)8000, (int)11025, (int)12000, (int)16000, (int)22050, (int)24000, (int)32000, (int)44100, (int)48000, (int)64000, (int)88200, (int)96000 }
       channels: { (int)1, (int)2, (int)3, (int)4, (int)5, (int)6, (int)8 }

Presence – always

Direction – sink

Object type – GstPad

src

audio/mpeg:
    mpegversion: 4
           rate: { (int)8000, (int)11025, (int)12000, (int)16000, (int)22050, (int)24000, (int)32000, (int)44100, (int)48000, (int)64000, (int)88200, (int)96000 }
       channels: { (int)1, (int)2, (int)3, (int)4, (int)5, (int)6, (int)8 }
  stream-format: { (string)adts, (string)adif, (string)raw }
        profile: { (string)lc, (string)he-aac-v1, (string)he-aac-v2, (string)ld }
         framed: true

Presence – always

Direction – src

Object type – GstPad

Properties

afterburner 

“afterburner” gboolean

Afterburner - Quality Parameter.

Flags : Read / Write

Default value : false

bitrate 

“bitrate” gint

Target Audio Bitrate. Only applicable if rate-control=cbr. (0 = fixed value based on sample rate and channel count)

Flags : Read / Write

Default value : 0

peak-bitrate 

“peak-bitrate” gint

Peak Bitrate to adjust maximum bits per audio frame.

Flags : Read / Write

Default value : 0

rate-control 

“rate-control” Fdk-aac-rate-control *

Rate Control.

Flags : Read / Write

Default value : cbr (0)

vbr-preset 

“vbr-preset” Fdk-aac-vbr-preset *

AAC Variable Bitrate configurations.

Flags : Read / Write

Default value : medium (3)

Named constants

Fdk-aac-rate-control

Members

cbr (0) – Constant Bitrate
vbr (1) – Variable Bitrate

Fdk-aac-vbr-preset

Members

very-low (1) – Very Low Variable Bitrate
low (2) – Low Variable Bitrate
medium (3) – Medium Variable Bitrate
high (4) – High Variable Bitrate
very-high (5) – Very High Variable Bitrate

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