alsasrc

alsasrc — Read from a sound card via ALSA

Synopsis

                    GstAlsaSrc;

Object Hierarchy

  GObject
   +----GstObject
         +----GstElement
               +----GstBaseSrc
                     +----GstPushSrc
                           +----GstBaseAudioSrc
                                 +----GstAudioSrc
                                       +----GstAlsaSrc

Implemented Interfaces

GstAlsaSrc implements GstImplementsInterface, GstMixer and GstPropertyProbe.

Properties

  "device"                   gchar*                : Read / Write
  "device-name"              gchar*                : Read

Description

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

Example pipelines

gst-launch -v alsasrc ! audioconvert ! vorbisenc ! oggmux ! filesink location=alsasrc.ogg
Record from a sound card using ALSA and encode to Ogg/Vorbis.

Last reviewed on 2006-03-01 (0.10.4)

Synopsis

Element Information

plugin alsa
author Wim Taymans <wim@fluendo.com>
class Source/Audio

Element Pads

name src
direction source
presence always
details audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)32, depth=(int)32, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]
audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)32, depth=(int)24, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]
audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)24, depth=(int)24, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]
audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)16, depth=(int)16, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]
audio/x-raw-int, signed=(boolean){ true, false }, width=(int)8, depth=(int)8, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]

Details

GstAlsaSrc

typedef struct _GstAlsaSrc GstAlsaSrc;

Opaque data structure

Property Details

The "device" property

  "device"                   gchar*                : Read / Write

ALSA device, as defined in an asound configuration file.

Default value: "default"


The "device-name" property

  "device-name"              gchar*                : Read

Human-readable name of the sound device.

Default value: ""

See Also

alsasink, alsamixer