void mp3player(void *pvParameters)
{
rprintf("mp3player()");
OSHANDLES *osHandles = (OSHANDLES*)pvParameters;
char songname[15];
char command;
while(1)
{
if(xQueueReceive(osHandles->queue.songname, &songname[0], portMAX_DELAY))
{
rprintf("SONG RECEIVED: %s\n", songname);
FIL fileHandle;
BYTE buffer[2048];
if(FR_OK == f_open(&fileHandle, songname, FA_OPEN_EXISTING | FA_READ))
{
rprintf("File opened, about to play %s\n", songname);
int numOfReadBytes = sizeof(buffer);
while(numOfReadBytes == sizeof(buffer))
{
if(FR_OK == f_read(&fileHandle, buffer, sizeof(buffer), &numOfReadBytes))
{
rprintf("successful read\n");
if(xSemaphoreTake(osHandles->lock.SPI, 1000))
{
rprintf("***** Playing mp3\ *****\n");
SELECT_MP3_CS();
int i = 0;
while( i < numOfReadBytes)
{
//if( STA013_NEEDS_DATA() && !paused)
if( STA013_NEEDS_DATA())
{
rxTxByteSSPSPI(buffer[i++]);
}
else
{
vTaskDelay(1);
}
}
DESELECT_MP3_CS();
xSemaphoreGive(osHandles->lock.SPI);
}
else
{
rprintf("Error taking SPI semaphore while playing mp3\n");
}
}
void mp3_task(void *pvParameters) {
OSHANDLES *osHandles = (OSHANDLES*)pvParameters; // Cast the void pointer to pointer of OSHANDLES
player_status.has_song = 0;
player_status.playing = 0;
vTaskDelay(100);
scan_root(); //scan/populate database of artist & their albums.
//artist_list->tracks = bubblesort(artist_list->tracks);
for(;;)
{
Track * playlist;
player_status.playlist_pos = 0;
unsigned char cntl = RESUME;
if (xQueueReceive(osHandles->queue.playback_playlist, &playlist,999999999)) {
player_status.playlist_pos = 0;
while (1) { //playlist loop
Track * this_song = get_track_number(player_status.playlist_pos, playlist);
if (this_song == NULL) {rprintf("get_track_number returned null."); break;} //past end of the playlist.
rprintf("item(%i) track(%s) path(%s)",player_status.playlist_pos,this_song->name,this_song->filename);
/* ---- check file's extention. ---- */
char* got_ext = strrchr(this_song->filename,'.'); //get position of last '.'
if ((got_ext == NULL) || (0 != strncmp(got_ext, ".MP3", 4)) ){
rprintf("file not .mp3\n");
break; // filename didn't have a .mp3 extention.
}
/* ---- open the file. ---- */
FIL file;
FRESULT rstat = f_open(&file, this_song->filename, (FA_READ | FA_OPEN_EXISTING));
if (rstat != FR_OK) {
rprintf("open error #%i (0x%02X).\n",rstat,rstat);
f_close(&file);
break;
}
/* ---- file opened successfully ---- */
player_status.has_song = 1;
player_status.playing = 1;
//player_status.legnth = Finfo.fsize;
player_status.position = 0;
while (1){
/* ---- check about the control queue ---- */
if (xQueueReceive(osHandles->queue.mp3_control, &cntl,0)){
if ((cntl == PAUSE) || (cntl == PLAY_PAUSE)) {
player_status.playing = 0;
if (xQueueReceive(osHandles->queue.mp3_control, &cntl,1000*60*5)) {}
else {cntl = STOP; break;} //stop if past timeout (5 mins)
}
if ((cntl == NEXT_T)||(cntl == PREV_T)||(cntl == STOP)) break; //breaks the playing loop..
}
if (cntl == SEEK_F_8X) { f_lseek(&file, file.fptr + 4096*8); player_status.position += 8; }
if (cntl == SEEK_R_8X) { f_lseek(&file, file.fptr - 4096*8); player_status.position -= 8; }
player_status.position += 1;
/* ---- read a chunk of data to the buffer ---- */
player_status.playing = 1;
char buff[4096];
unsigned int bytesRead = 0;
unsigned int start_ms = xTaskGetTickCount();
f_read(&file, buff, sizeof(buff), &bytesRead);
player_status.read_speed = bytesRead/(xTaskGetTickCount()-start_ms);
/* ---- send chunked data to the mp3 decoder ---- */
int i = 0;
while( i < bytesRead) {
if (MP3_DATAREQ_IS_HIGH) {
if (xSemaphoreTake( osHandles->lock.SPI, 100)){
IOSET1 = (1<<29); //MP3-decoder CS => active high
rxTxByteSSPSPI(buff[i++]);
IOCLR1 = (1<<29); //MP3-decoder CS
xSemaphoreGive( osHandles->lock.SPI );
}
}
}
if(sizeof(buff) > bytesRead){ // Last Chunk in file
break; // Break outer loop, song ended
}
}
f_close(&file);
player_status.has_song = 0;
player_status.playing = 0;
//done playing the current playlist position, increment and continue.
if (cntl == STOP) break; //breaks the playlist loop..
else if (cntl == PREV_T) { //previous / skip to beginning of track.
if ((player_status.position < 50) && (player_status.playlist_pos > 0)){
player_status.playlist_pos--;
}
}
else if (cntl == NEXT_T) {player_status.playlist_pos++;}
else {player_status.playlist_pos++;cntl = RESUME;}
} //playlist loop
} //xQueueReceive
} //endless for loop. don't break; this.
}
