SDL Wiki
(This function is part of SDL_mixer, a separate library from SDL.)

Mix_SetReverseStereo

Causes a channel to reverse its stereo.

Syntax

int Mix_SetReverseStereo(int channel, int flip);

Function Parameters

channel

channel

flip

flip

Return Value

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().

Remarks

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).

Version

This function is available since SDL_mixer 2.0.0.


CategoryAPI


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