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#include <stdio.h>
#include <stdlib.h>
#include "../include.h"
#include <fluidsynth.h>
struct fluidsynth_userdata {
fluid_settings_t *settings;
fluid_synth_t *synth;
fluid_player_t *player;
int soundfont;
};
static void fluidsynth_callback(void *userdata, unsigned char *stream, int const length) {
struct fluidsynth_userdata *fs = userdata;
fluid_synth_write_float(fs->synth, length / sizeof (float) / 2, stream, 0, 2, stream, 1, 2);
}
static void fluidsynth_free(void *ptr) {
struct fluidsynth_userdata *fs = ptr;
fluid_player_stop(fs->player);
delete_fluid_player(fs->player);
fluid_player_play(fs->player);
fluid_synth_sfunload(fs->synth, fs->soundfont, 0);
delete_fluid_synth(fs->synth);
delete_fluid_settings(fs->settings);
free(fs);
}
int module_fluidsynth(struct blob *file, struct userdata *userdata) {
struct fluidsynth_userdata *fs = malloc(sizeof (struct fluidsynth_userdata));
if (fs == NULL) {
return 1;
}
fs->settings = new_fluid_settings(); // wasteful, but when trying to 'fix' it it just caused more errors
fluid_settings_setnum(fs->settings, "synth.gain", 0.5);
fluid_settings_setint(fs->settings, "player.reset-synth", 0);
fluid_settings_setnum(fs->settings, "synth.sample-rate", 48000);
fs->synth = new_fluid_synth(fs->settings);
char *soundfont_path = getenv("SOUNDFONT");
if (soundfont_path == NULL) {
soundfont_path = "/usr/share/sounds/sf2/default-GM.sf2";
}
fs->soundfont = fluid_synth_sfload(fs->synth, soundfont_path, 1); // ugly hack
fs->player = new_fluid_player(fs->synth);
fluid_player_set_loop(fs->player, -1);
if (fluid_player_add_mem(fs->player, file->data, file->size) == FLUID_FAILED) {
fluidsynth_free(fs);
return 1;
}
fluid_player_play(fs->player);
userdata->callback = fluidsynth_callback;
userdata->user = fs;
userdata->freefunc = fluidsynth_free;
return 0;
}
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