Causes a channel to reverse its stereo.
int Mix_SetReverseStereo(int channel, int flip);channel |
channel |
flip |
flip |
Returns zero if error (no such channel or Mix_RegisterEffect() fails), nonzero if reversing effect is enabled. Note that an audio device in mono mode is a no-op, but this call will return successful in that case. Error messages can be retrieved from Mix_GetError().
This is handy if the user has his speakers hooked up backwards, or you would like to have a minor bit of psychedelia in your sound code. :) Calling this function with (flip) set to non-zero reverses the chunks's usual channels. If (flip) is zero, the effect is unregistered.
This uses the Mix_RegisterEffect() API internally, and thus is probably more CPU intensive than having the user just plug in his speakers correctly. Mix_SetReverseStereo() returns without registering the effect function if the audio device is not configured for stereo output.
If you specify MIX_CHANNEL_POST for (channel), then this the effect is used on the final mixed stream before sending it on to the audio device (a posteffect).
This function is available since SDL_mixer 2.0.0.