Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstAudioEncoder
                    ╰──twolamemp2enc

Implemented interfaces

Factory details

Authors: – Sebastian Dröge

Classification: – Codec/Encoder/Audio

Rank – primary

Plugin – twolame

Package – GStreamer Good Plug-ins

Pad Templates

sink

audio/x-raw:
         format: { F32LE, S16LE }
         layout: interleaved
           rate: { (int)16000, (int)22050, (int)24000, (int)32000, (int)44100, (int)48000 }
       channels: 1
audio/x-raw:
         format: { F32LE, S16LE }
         layout: interleaved
           rate: { (int)16000, (int)22050, (int)24000, (int)32000, (int)44100, (int)48000 }
       channels: 2
   channel-mask: 0x0000000000000003

Presence – always

Direction – sink

Object type – GstPad

src

audio/mpeg:
    mpegversion: 1
          layer: 2
           rate: { (int)16000, (int)22050, (int)24000, (int)32000, (int)44100, (int)48000 }
       channels: [ 1, 2 ]

Presence – always

Direction – src

Object type – GstPad

Properties

ath-level 

“ath-level” gfloat

ATH Level in dB

Flags : Read / Write

Default value : 0

bitrate 

“bitrate” gint

Bitrate in kbit/sec (8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 192, 224, 256, 320, 384)

Flags : Read / Write

Default value : 192

copyright 

“copyright” gboolean

Mark as copyright

Flags : Read / Write

Default value : false

emphasis 

“emphasis” GstTwoLameEmphasis *

Pre-emphasis to apply to the decoded audio

Flags : Read / Write

Default value : none (0)

energy-level-extension 

“energy-level-extension” gboolean

Write peak PCM level to each frame

Flags : Read / Write

Default value : false

error-protection 

“error-protection” gboolean

Adds checksum to every frame

Flags : Read / Write

Default value : false

mode 

“mode” GstTwoLameMode *

Encoding mode

Flags : Read / Write

Default value : joint (1)

original 

“original” gboolean

Mark as original

Flags : Read / Write

Default value : true

padding 

“padding” GstTwoLamePadding *

Padding type

Flags : Read / Write

Default value : never (0)

psymodel 

“psymodel” gint

Psychoacoustic model used to encode the audio

Flags : Read / Write

Default value : 3

quick-mode 

“quick-mode” gboolean

Calculate Psymodel every frames

Flags : Read / Write

Default value : false

quick-mode-count 

“quick-mode-count” gint

Calculate Psymodel every n frames

Flags : Read / Write

Default value : 10

vbr 

“vbr” gboolean

Enable variable bitrate mode

Flags : Read / Write

Default value : false

vbr-level 

“vbr-level” gfloat

VBR Level

Flags : Read / Write

Default value : 5

vbr-max-bitrate 

“vbr-max-bitrate” gint

Specify maximum VBR bitrate (0=off, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 192, 224, 256, 320, 384)

Flags : Read / Write

Default value : 0

Named constants

GstTwoLameEmphasis

Members

none (0) – No emphasis
5 (1) – 50/15 ms
ccit (3) – CCIT J.17

GstTwoLameMode

Members

auto (-1) – Auto
stereo (0) – Stereo
joint (1) – Joint Stereo
dual (2) – Dual Channel
mono (3) – Mono

GstTwoLamePadding

Members

never (0) – No Padding
always (1) – Always Pad

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