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Move load_audio into loading.c for consistency

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This commit is contained in:
Alex Taber
2018-05-10 07:40:28 -04:00
parent f2aa7420df
commit 5520ec2b2f
5 changed files with 49 additions and 43 deletions
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45
source/music.c
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@@ -25,9 +25,10 @@
*/
#include "music.h"
#include "loading.h"
// Play a given audio struct
Result play_audio(audio_s *audio)
Result update_audio(audio_s *audio)
{
long size = audio->wave_buf[audio->buf_pos].nsamples * 4 - audio->data_read;
char size_info[50] = {0};
@@ -67,48 +68,12 @@ Result play_audio(audio_s *audio)
void thread_audio(void* data) {
audio_s *audio = (audio_s*)data;
while(!audio->stop) {
play_audio(audio);
update_audio(audio);
}
free(audio->filebuf);
free(audio);
}
// Initialize the audio struct
Result load_audio(Entry_s entry, audio_s *audio)
{
audio->filesize = load_data("/bgm.ogg", entry, &audio->filebuf);
audio->mix[0] = audio->mix[1] = 1.0f; // Determines volume for the 12 (?) different outputs. See http://smealum.github.io/ctrulib/channel_8h.html#a30eb26f1972cc3ec28370263796c0444
ndspChnSetInterp(0, NDSP_INTERP_LINEAR);
ndspChnSetRate(0, 44100);
ndspChnSetFormat(0, NDSP_FORMAT_STEREO_PCM16); // Tremor outputs ogg files in 16 bit PCM stereo
ndspChnSetMix(0, audio->mix); // See mix comment above
FILE *file = fmemopen(audio->filebuf, audio->filesize, "rb");
if(file != NULL)
{
int e = ov_open(file, &audio->vf, NULL, 0);
if (e < 0)
{
char error[50];
sprintf(error, "Vorbis: %d\n", e);
DEBUG(error);
return MAKERESULT(RL_FATAL, RS_INVALIDARG, RM_APPLICATION, RD_NO_DATA);
}
vorbis_info *vi = ov_info(&audio->vf, -1);
ndspChnSetRate(0, vi->rate);// Set sample rate to what's read from the ogg file
audio->wave_buf[0].nsamples = audio->wave_buf[1].nsamples = vi->rate / 4; // 4 bytes per sample, samples = rate (bytes) / 4
audio->wave_buf[0].status = audio->wave_buf[1].status = NDSP_WBUF_DONE; // Used in play to stop from writing to current buffer
audio->wave_buf[0].data_vaddr = linearAlloc(BUF_TO_READ); // Most vorbis packets should only be 4 KB at most (?) Possibly dangerous assumption
audio->wave_buf[1].data_vaddr = linearAlloc(BUF_TO_READ);
DEBUG("Success!");
threadCreate(thread_audio, audio, 0x1000, 0x3F, 1, true);
return MAKERESULT(RL_SUCCESS, RS_SUCCESS, RM_APPLICATION, RD_SUCCESS);
} else {
DEBUG("File not found!\n");
return MAKERESULT(RL_FATAL, RS_NOTFOUND, RM_APPLICATION, RD_NOT_FOUND);
}
void play_audio(audio_s *audio) {
threadCreate(thread_audio, audio, 0x1000, 0x3F, 1, true);
}