alsasrc

This element reads data from an audio card using the ALSA API.

Example pipelines

 gst-launch-1.0 -v alsasrc ! queue ! audioconvert ! vorbisenc ! oggmux ! filesink location=alsasrc.ogg

Record from a sound card using ALSA and encode to Ogg/Vorbis.

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstBaseSrc
                    ╰──GstPushSrc
                        ╰──GstAudioBaseSrc
                            ╰──GstAudioSrc
                                ╰──alsasrc

Factory details

Authors: – Wim Taymans

Classification: – Source/Audio

Rank – primary

Plugin – alsa

Package – GStreamer Base Plug-ins

Pad Templates

src

audio/x-raw:
         format: { F64LE, F64BE, F32LE, F32BE, S32LE, S32BE, U32LE, U32BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S24LE, S24BE, U24LE, U24BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, S16LE, S16BE, U16LE, U16BE, S8, U8 }
         layout: interleaved
           rate: [ 1, 2147483647 ]
       channels: [ 1, 2147483647 ]

Presence – always

Direction – src

Object type – GstPad

Properties

card-name 

“card-name” gchararray

Human-readable name of the sound card

Flags : Read

device 

“device” gchararray

ALSA device, as defined in an asound configuration file

Flags : Read / Write

Default value : default

device-name 

“device-name” gchararray

Human-readable name of the sound device

Flags : Read

Default value : NULL

use-driver-timestamps 

“use-driver-timestamps” gboolean

Use driver timestamps or the pipeline clock timestamps

Flags : Read / Write

Default value : true

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