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<?xml version="1.0" encoding="UTF-8" ?>
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<class name= "AudioStreamPlayback" inherits= "RefCounted" xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation= "../class.xsd" >
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<brief_description >
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Meta class for playing back audio.
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</brief_description>
<description >
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Can play, loop, pause a scroll through audio. See [AudioStream] and [AudioStreamOggVorbis] for usage.
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</description>
<tutorials >
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<link title= "Audio Generator Demo" > https://godotengine.org/asset-library/asset/526</link>
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</tutorials>
<methods >
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<method name= "_get_loop_count" qualifiers= "virtual const" >
<return type= "int" />
<description >
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Overridable method. Should return how many times this audio stream has looped. Most built-in playbacks always return [code]0[/code].
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</description>
</method>
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<method name= "_get_parameter" qualifiers= "virtual const" >
<return type= "Variant" />
<param index= "0" name= "name" type= "StringName" />
<description >
Return the current value of a playback parameter by name (see [method AudioStream._get_parameter_list]).
</description>
</method>
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<method name= "_get_playback_position" qualifiers= "virtual const" >
<return type= "float" />
<description >
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Overridable method. Should return the current progress along the audio stream, in seconds.
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</description>
</method>
<method name= "_is_playing" qualifiers= "virtual const" >
<return type= "bool" />
<description >
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Overridable method. Should return [code]true[/code] if this playback is active and playing its audio stream.
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</description>
</method>
<method name= "_mix" qualifiers= "virtual" >
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<return type= "int" />
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<param index= "0" name= "buffer" type= "AudioFrame*" />
<param index= "1" name= "rate_scale" type= "float" />
<param index= "2" name= "frames" type= "int" />
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<description >
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Override this method to customize how the audio stream is mixed. This method is called even if the playback is not active.
[b]Note:[/b] It is not useful to override this method in GDScript or C#. Only GDExtension can take advantage of it.
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</description>
</method>
<method name= "_seek" qualifiers= "virtual" >
<return type= "void" />
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<param index= "0" name= "position" type= "float" />
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<description >
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Override this method to customize what happens when seeking this audio stream at the given [param position], such as by calling [method AudioStreamPlayer.seek].
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</description>
</method>
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<method name= "_set_parameter" qualifiers= "virtual" >
<return type= "void" />
<param index= "0" name= "name" type= "StringName" />
<param index= "1" name= "value" type= "Variant" />
<description >
Set the current value of a playback parameter by name (see [method AudioStream._get_parameter_list]).
</description>
</method>
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<method name= "_start" qualifiers= "virtual" >
<return type= "void" />
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<param index= "0" name= "from_pos" type= "float" />
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<description >
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Override this method to customize what happens when the playback starts at the given position, such as by calling [method AudioStreamPlayer.play].
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</description>
</method>
<method name= "_stop" qualifiers= "virtual" >
<return type= "void" />
<description >
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Override this method to customize what happens when the playback is stopped, such as by calling [method AudioStreamPlayer.stop].
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</description>
</method>
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<method name= "_tag_used_streams" qualifiers= "virtual" >
<return type= "void" />
<description >
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Overridable method. Called whenever the audio stream is mixed if the playback is active and [method AudioServer.set_enable_tagging_used_audio_streams] has been set to [code]true[/code]. Editor plugins may use this method to "tag" the current position along the audio stream and display it in a preview.
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</description>
</method>
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</methods>
</class>