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84 lines
3.7 KiB
XML
84 lines
3.7 KiB
XML
<?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>
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<description>
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Can play, loop, pause a scroll through audio. See [AudioStream] and [AudioStreamOggVorbis] for usage.
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</description>
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<tutorials>
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<link title="Audio Generator Demo">https://godotengine.org/asset-library/asset/526</link>
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</tutorials>
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<methods>
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<method name="_get_loop_count" qualifiers="virtual const">
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<return type="int" />
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<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>
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</method>
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<method name="_get_parameter" qualifiers="virtual const">
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<return type="Variant" />
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<param index="0" name="name" type="StringName" />
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<description>
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Return the current value of a playback parameter by name (see [method AudioStream._get_parameter_list]).
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</description>
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</method>
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<method name="_get_playback_position" qualifiers="virtual const">
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<return type="float" />
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<description>
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Overridable method. Should return the current progress along the audio stream, in seconds.
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</description>
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</method>
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<method name="_is_playing" qualifiers="virtual const">
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<return type="bool" />
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<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>
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</method>
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<method name="_mix" qualifiers="virtual">
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<return type="int" />
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<param index="0" name="buffer" type="AudioFrame*" />
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<param index="1" name="rate_scale" type="float" />
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<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.
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[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>
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</method>
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<method name="_seek" qualifiers="virtual">
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<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>
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</method>
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<method name="_set_parameter" qualifiers="virtual">
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<return type="void" />
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<param index="0" name="name" type="StringName" />
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<param index="1" name="value" type="Variant" />
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<description>
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Set the current value of a playback parameter by name (see [method AudioStream._get_parameter_list]).
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</description>
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</method>
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<method name="_start" qualifiers="virtual">
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<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>
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</method>
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<method name="_stop" qualifiers="virtual">
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<return type="void" />
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<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>
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</method>
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<method name="_tag_used_streams" qualifiers="virtual">
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<return type="void" />
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<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>
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</method>
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</methods>
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</class>
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