AudioStreamPlayer doesn't seek() if set_stream() is used unless seeking after play()

[elvisish]

Godot version

3.3.3 stable

System information

Windows 7 64-bit

Issue description

When using AudioStreamPlayer and setting the stream playback in code, you must use play() to begin playing the file before you seek to a position, or else you'll always play at the beginning. If you set the stream in the AudioStreamPlayer inspector, you may seek() before using play() and it'll work fine.

Steps to reproduce

onready var audiostream = $AudioStreamPlayer
var filelong
export (AudioStreamOGGVorbis) var soundfile

func _ready():
	var rng = RandomNumberGenerator.new()
	rng.randomize()
	audiostream.set_stream(soundfile)
	filelong = soundfile.get_length()
	audiostream.seek(rng.randf_range(0, filelong))
	audiostream.play()
	print(audiostream.get_playback_position())

This will print 0 every time, however:

	audiostream.play()
	audiostream.seek(rng.randf_range(0, filelong))
	print(audiostream.get_playback_position())

This will print the playback position at a random time.

Minimal reproduction project

No response

[Calinou]

See also #48982.

PS: GitHub supports gdscript syntax highlighting for code blocks. I edited your post accordingly 🙂

[Klowner]

Looks like you can pass the seek position as an optional argument to play(pos), eg:

audiostream.play(rng.randf_range(0, filelong))

Maybe add adding a note to the documentation for seek() might be helpful, or emitting a warning when seek() is called on a stopped audio stream?