osssink
This element lets you output sound using the Open Sound System (OSS).
Note that you should almost always use generic audio conversion elements like audioconvert and audioresample in front of an audiosink to make sure your pipeline works under all circumstances (those conversion elements will act in passthrough-mode if no conversion is necessary).
Example pipelines
gst-launch-1.0 -v audiotestsrc ! audioconvert ! volume volume=0.1 ! osssink
will output a sine wave (continuous beep sound) to your sound card (with a very low volume as precaution).
gst-launch-1.0 -v filesrc location=music.ogg ! decodebin ! audioconvert ! audioresample ! osssink
will play an Ogg/Vorbis audio file and output it using the Open Sound System.
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBaseSink ╰──GstAudioBaseSink ╰──GstAudioSink ╰──osssink
Factory details
Authors: – Erik Walthinsen
Classification: – Sink/Audio
Rank – secondary
Plugin – gstossaudio
Package – GStreamer Good Plug-ins
Pad Templates
sink
audio/x-raw:
format: { S16LE, U16LE, S8, U8 }
layout: interleaved
rate: [ 1, 2147483647 ]
channels: 1
audio/x-raw:
format: { S16LE, U16LE, S8, U8 }
layout: interleaved
rate: [ 1, 2147483647 ]
channels: 2
channel-mask: 0x0000000000000003
Properties
alignment-threshold
“alignment-threshold” guint64
Timestamp alignment threshold in nanoseconds
Flags : Read / Write
Default value : 40000000
blocksize
“blocksize” guint
Size in bytes to pull per buffer (0 = default)
Flags : Read / Write
Default value : 4096
buffer-time
“buffer-time” gint64
Size of audio buffer in microseconds, this is the minimum latency that the sink reports
Flags : Read / Write
Default value : 200000
can-activate-pull
“can-activate-pull” gboolean
Allow pull-based scheduling
Flags : Read / Write
Default value : false
device
“device” gchararray
OSS device (usually /dev/dspN)
Flags : Read / Write
Default value : /dev/dsp
discont-wait
“discont-wait” guint64
Window of time in nanoseconds to wait before creating a discontinuity
Flags : Read / Write
Default value : 1000000000
drift-tolerance
“drift-tolerance” gint64
Tolerance for clock drift in microseconds
Flags : Read / Write
Default value : 40000
enable-last-sample
“enable-last-sample” gboolean
Enable the last-sample property
Flags : Read / Write
Default value : false
latency-time
“latency-time” gint64
The minimum amount of data to write in each iteration in microseconds
Flags : Read / Write
Default value : 10000
max-bitrate
“max-bitrate” guint64
The maximum bits per second to render (0 = disabled)
Flags : Read / Write
Default value : 0
max-lateness
“max-lateness” gint64
Maximum number of nanoseconds that a buffer can be late before it is dropped (-1 unlimited)
Flags : Read / Write
Default value : 18446744073709551615
processing-deadline
“processing-deadline” guint64
Maximum processing time for a buffer in nanoseconds
Flags : Read / Write
Default value : 20000000
provide-clock
“provide-clock” gboolean
Provide a clock to be used as the global pipeline clock
Flags : Read / Write
Default value : true
qos
“qos” gboolean
Generate Quality-of-Service events upstream
Flags : Read / Write
Default value : false
render-delay
“render-delay” guint64
Additional render delay of the sink in nanoseconds
Flags : Read / Write
Default value : 0
slave-method
“slave-method” GstAudioBaseSinkSlaveMethod *
Algorithm used to match the rate of the masterclock
Flags : Read / Write
Default value : skew (1)
stats
“stats” GstStructure *
Sink Statistics
Flags : Read
Default value :
application/x-gst-base-sink-stats, average-rate=(double)0, dropped=(guint64)0, rendered=(guint64)0;
throttle-time
“throttle-time” guint64
The time to keep between rendered buffers (0 = disabled)
Flags : Read / Write
Default value : 0
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