avenc_wmav1

libav wmav1 encoder

Hierarchy

GObject.Object
    ╰──GObject.InitiallyUnowned
        ╰──Gst.Object
            ╰──Gst.Element
                ╰──GstAudio.AudioEncoder
                    ╰──avenc_wmav1

Implemented interfaces

Factory details

Authors: – Wim Taymans , Ronald Bultje

Classification:Codec/Encoder/Audio

Rank – secondary

Plugin – libav

Package – GStreamer FFMPEG Plug-ins

Pad Templates

sink

audio/x-raw:
       channels: [ 1, 2 ]
           rate: [ 4000, 96000 ]
         format: F32LE
         layout: interleaved

Presencealways

Directionsink

Object typeGst.Pad


src

audio/x-wma:
       channels: [ 1, 2 ]
           rate: [ 4000, 96000 ]
     wmaversion: 1
    block_align: [ 0, 2147483647 ]
        bitrate: [ 0, 2147483647 ]

Presencealways

Directionsrc

Object typeGst.Pad


Properties

ac

“ac” Number

set number of audio channels (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


ar

“ar” Number

set audio sampling rate (in Hz) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


audio-service-type

“audio-service-type” avcodeccontext-audio-service-type 

audio service type (Generic codec option, might have no effect)

Flags : Read / Write

Default value : ma (0)


bitrate

“bitrate” Number

set bitrate (in bits/s) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 128000


bitrate-tolerance

“bitrate-tolerance” Number

Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far ratecontrol is willing to deviate from the target average bitrate value. This is not related to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality. (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 4000000


bufsize

“bufsize” Number

set ratecontrol buffer size (in bits) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


compression-level

“compression-level” Number

(null) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : -1


cutoff

“cutoff” Number

set cutoff bandwidth (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


debug

“debug” avcodeccontext-debug 

print specific debug info (Generic codec option, might have no effect)

Flags : Read / Write

Default value : (none)


dump-separator

“dump-separator” String

set information dump field separator (Generic codec option, might have no effect)

Flags : Read / Write

Default value : NULL


err-detect

“err-detect” avcodeccontext-err-detect 

set error detection flags (Generic codec option, might have no effect)

Flags : Read / Write

Default value : (none)


export-side-data

“export-side-data” avcodeccontext-export-side-data 

Export metadata as side data (Generic codec option, might have no effect)

Flags : Read / Write

Default value : (none)


flags

“flags” avcodeccontext-flags 

(null) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : (none)


flags2

“flags2” avcodeccontext-flags2 

(null) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : (none)


frame-size

“frame-size” Number

(null) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


global-quality

“global-quality” Number

(null) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


max-pixels

“max-pixels” Number

Maximum number of pixels (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 2147483647


max-samples

“max-samples” Number

Maximum number of samples (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 2147483647


maxrate

“maxrate” Number

maximum bitrate (in bits/s). Used for VBV together with bufsize. (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


minrate

“minrate” Number

minimum bitrate (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise. (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


strict

“strict” avcodeccontext-strict 

how strictly to follow the standards (Generic codec option, might have no effect)

Flags : Read / Write

Default value : normal (0)


thread-type

“thread-type” avcodeccontext-thread-type 

select multithreading type (Generic codec option, might have no effect)

Flags : Read / Write

Default value : slice+frame


threads

“threads” avcodeccontext-threads 

set the number of threads (Generic codec option, might have no effect)

Flags : Read / Write

Default value : unknown (1)


ticks-per-frame

“ticks-per-frame” Number

(null) (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 1


trellis

“trellis” Number

rate-distortion optimal quantization (Generic codec option, might have no effect)

Flags : Read / Write

Default value : 0


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