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.TH "al_set_mixer_postprocess_callback" "3" "" "Allegro reference manual" ""
.SH NAME
al_set_mixer_postprocess_callback \- Allegro 5 API
.SH SYNOPSIS
.IP
.EX
#include \f[B]<allegro5/allegro_audio.h>\f[R]

bool al_set_mixer_postprocess_callback(ALLEGRO_MIXER *mixer,
   void (*pp_callback)(void *buf, unsigned int samples, void *data),
   void *pp_callback_userdata)
.EE
.SH DESCRIPTION
Sets a post\-processing filter function that\[cq]s called after the
attached streams have been mixed.
The buffer\[cq]s format will be whatever the mixer was created with.
The sample count and user\-data pointer is also passed.
.RS
.PP
\f[I]Note:\f[R] The callback is called from a dedicated audio thread.
.RE