Re: [pygame] Confusing values from mixer.Channel.get_sound()

[Greg Ewing <greg.ewing@xxxxxxxxxxxxxxxx>]

On 26/12/20 3:38 am, Pavils Jurjans wrote:
> I first play a sound (get the channel object in return), and let it play 
> until the end. channel.get_sound() returns None, as it should. Then I 
> play this sound a second time (storing the returned channel object in 
> another variable). While the sound is still playing, if I query the 
> first channel.get_sound(), I get the reference to the sound object.

Because you started playing the second sound after the first one
finished, it re-used the same channel.

I added a couple of lines to print out the repr of the sound
object returned by each play() call. This is what I got:

Play the sound on channel1
channel1 = <Channel object at 0x10ddf1030>
After 1 second: channel1 -  True
After 7 seconds: channel1 -  False
Play the sound on channel2
channel2 = <Channel object at 0x10ddf1030>
After 1 seconds: channel1 -  True , channel2 -  True
After 4 seconds: channel1 -  True , channel2 -  True
After 7 seconds: channel1 -  False , channel2 -  False

You can see that channel1 and channel2 are actually the same
channel object.

I don't think there's anything you can do about that; you'll
have to re-think your method of detecting whether a sound is
still playing.

Note that you can use Channel.set_endevent() to arrange for an
event to be posted when a sound finishes playing.

--
Greg