67 lines
1.6 KiB
C
67 lines
1.6 KiB
C
#include "mauplay.h"
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#include <samplerate.h>
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#include <stb_ds.h>
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static MDEAudio audio;
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pthread_mutex_t audio_mutex;
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queue_t* queue = NULL;
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int queue_seek = -1;
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int paused = 0;
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static void handler(MDEAudio handle, void* user, void* data, int frames) {
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memset(data, 0, frames * 2 * 2);
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pthread_mutex_lock(&audio_mutex);
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if(queue_seek != -1 && !paused) {
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int from_frames = frames * queue[queue_seek].sound->context->sample_rate / MDEAudioRate;
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float* from = malloc(from_frames * sizeof(*from) * 2);
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float* to = malloc(frames * sizeof(*to) * 2);
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SRC_DATA d;
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int f;
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d.data_in = from;
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d.data_out = to;
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d.input_frames = from_frames;
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d.output_frames = frames;
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d.src_ratio = (double)MDEAudioRate / queue[queue_seek].sound->context->sample_rate;
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f = MDESoundReadFloat(queue[queue_seek].sound, from, from_frames);
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src_simple(&d, SRC_SINC_BEST_QUALITY, 2);
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src_float_to_short_array(to, data, frames * 2);
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queue[queue_seek].frames += f;
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free(from);
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free(to);
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if(f < from_frames) {
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queue_seek++;
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if(queue_seek >= arrlen(queue)) {
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queue_seek = -1;
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}
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}
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}
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pthread_mutex_unlock(&audio_mutex);
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}
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void audio_init(void) {
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audio = MDEAudioOpen(handler, NULL);
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pthread_mutex_init(&audio_mutex, NULL);
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MDEAudioStart(audio);
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}
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void audio_queue(const char* path) {
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queue_t q;
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q.path = MDEFileAbsolutePath(path);
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q.sound = MDESoundOpen(q.path);
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q.frames = 0;
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pthread_mutex_lock(&audio_mutex);
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arrput(queue, q);
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if(queue_seek == -1) queue_seek = arrlen(queue) - 1;
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ui_set_play_queue(arrlen(queue));
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pthread_mutex_unlock(&audio_mutex);
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}
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