void loop(){
int i;
static u8 zero[32] = {0};
if (is_playing){
int buf_len = mp3_buffer_len();
static int last_second = -1;
int second;
store_buffer();
if (buf_len < 32){
for (i=0;i<8;i++) fill_mp3_buffer();
}else if (mp3_need_data()){
if (wifi_available_len() < 30 && last_second < 2){
printf("oooooverrrrrrrrr\r\n");
while (wifi_available_len() > 0) wifi_receive();
mp3_input_data(zero);
cur_song_init();
is_playing = 0;
return;
}
mp3_input_data(cur_song.buffer);
for (i=32;i<cur_song.buffer_idx;i++){
cur_song.buffer[i-32] = cur_song.buffer[i];
}
cur_song.buffer_idx -= 32;
if (cur_song.frame_size > 0){
second = cur_song.content_remain / cur_song.frame_size * 26 /1000;
if (second != last_second) printf("time : -%d\r\n",second);
last_second = second;
}
}
}else{
char * sg;
sg = next_song();
printf(">>> %s\r\n",sg);
send_fetch_song(sg);
is_playing = 1;
}
}
static void play_mp3(char* filename) {
bool out_of_data;
int cc;
// Open file
if (FR_OK == f_open(&file, filename, FA_OPEN_EXISTING | FA_READ)) {
// Read ID3v2 Tag
char szArtist[120];
char szTitle[120];
Mp3ReadId3V2Tag(&file, szArtist, sizeof(szArtist), szTitle, sizeof(szTitle));
///////////////////////////////////////////////////////////buffer starts getting filled for first time
// Start Initial fill of buffer
hMP3Decoder = MP3InitDecoder();
for (cc = 0 ; cc < NUMBER_BUFFERS ; cc++ ) {
out_of_data = fill_mp3_buffer(&file,cc);
if ( out_of_data ) {
break;
}
}
// Initialize buffer counters
buffer_read = 0;
buffer_write = 0;
/////////////////////////////////////////////////////////////////////////////////////////
// Play mp3
running_player = true;
InitializeAudio(Audio44100HzSettings);
// InitializeAudio(Audio32000HzSettings);
SetAudioVolume(0xAF);
PlayAudioWithCallback(AudioCallback, 0);
//////////////////////////////////////////////////////////////////////////////////////////
for(;;) {
/*
* If we have an unused buffer, call fill_mp3_buffer to fill it.
*/
if ( buffer_read != buffer_write ) {
// Refill the MP3 buffer
out_of_data = fill_mp3_buffer(&file,buffer_write);
if ( !out_of_data ) {
buffer_write = ( buffer_write + 1 ) % NUMBER_BUFFERS;
}
// Out of data or error or user button... Stop playback!
if (out_of_data || (exitMp3 == 1))
{
StopAudio();
running_player = false;
// Re-initialize and set volume to avoid noise
InitializeAudio(Audio44100HzSettings);
SetAudioVolume(0);
// Close currently open file
f_close(&file);
return;
}
}
else {
// We don't have any work to do, shut down until interrupt (DMA transfer complete)
__asm__ volatile ("wfi");
}
}
}
