/**
* @brief Stop audio stream.
* @param None.
* @retval Audio state.
*/
AUDIO_RECORDER_ErrorTypdef AUDIO_RECORDER_StopRec(void)
{
uint32_t byteswritten = 0;
AUDIO_RECORDER_ErrorTypdef audio_error = AUDIO_RECORDER_ERROR_IO;
BSP_AUDIO_IN_Stop();
haudio.in.state = AUDIO_RECORDER_IDLE;
if(f_lseek(&wav_file, 0) == FR_OK)
{
/* Update the wav file header save it into wav file */
WavProcess_HeaderUpdate(pHeaderBuff, &AudioInfo);
if(f_write(&wav_file, pHeaderBuff, sizeof(WAV_InfoTypedef), (void*)&byteswritten) == FR_OK)
{
audio_error = AUDIO_RECORDER_ERROR_NONE;
}
}
haudio.in.state = AUDIO_RECORDER_SUSPENDED;
f_close(&wav_file);
_cbNotifyStateChange();
if(AudioThreadId != 0)
{
osThreadSuspend(AudioThreadId);
}
return audio_error;
}
/**
* @brief Update the recorded data.
* @param None
* @retval None
*/
void WaveRecorderProcess(void)
{
/* Current size of the recorded buffer */
uint32_t byteswritten = 0;
WaveCounter = 0;
LEDsState = LEDS_OFF;
/* Remove Wave file if it exists on USB Flash Disk */
f_unlink(REC_WAVE_NAME);
/* Open the file to write on it */
if((AppliState == APPLICATION_IDLE) || (f_open(&WavFile, REC_WAVE_NAME, FA_CREATE_ALWAYS | FA_WRITE) != FR_OK))
{
while(1)
{
/* Toggle LED5 in infinite loop to signal that: USB Flash Disk is not connected/removed
or an issue has occurred when creating/opening Wave file */
BSP_LED_Toggle(LED5);
}
}
else
{
WaveRecStatus = 1;
}
/* Initialize header file */
WavProcess_EncInit(DEFAULT_AUDIO_IN_FREQ, pHeaderBuff);
/* Write the header Wave */
f_write(&WavFile, pHeaderBuff, 44, (void *)&byteswritten);
/* Increment the Wave counter */
BufferCtl.fptr = byteswritten;
BufferCtl.offset = BUFFER_OFFSET_NONE;
BSP_AUDIO_IN_Init(DEFAULT_AUDIO_IN_FREQ, DEFAULT_AUDIO_IN_BIT_RESOLUTION, DEFAULT_AUDIO_IN_CHANNEL_NBR);
BSP_AUDIO_IN_Record((uint16_t*)&InternalBuffer[0], INTERNAL_BUFF_SIZE);
/* Reset the time recording base variable */
TimeRecBase = 0;
ITCounter = 0;
LEDsState = LED3_TOGGLE;
while(AppliState != APPLICATION_IDLE)
{
/* Wait for the recording time */
if(TimeRecBase <= DEFAULT_TIME_REC)
{
/* Check if there are Data to write in Usb Key */
if(AUDIODataReady == 1)
{
/* write buffer in file */
res = f_write(&WavFile, (uint8_t*)(WrBuffer+AUDIOBuffOffset), WR_BUFFER_SIZE, (void*)&byteswritten);
if(res != FR_OK)
{
Error_Handler();
}
BufferCtl.fptr += byteswritten;
AUDIODataReady = 0;
}
/* User button pressed */
if(CmdIndex != CMD_RECORD)
{
/* Stop Audio Recording */
WaveRecorderStop();
/* Switch Command Index to Play */
CmdIndex = CMD_PLAY;
/* Toggoling LED6 to signal Play */
LEDsState = LED6_TOGGLE;
break;
}
}
else /* End of recording time DEFAULT_TIME_REC */
{
/* Stop Audio Recording */
WaveRecorderStop();
/* Change Command Index to Stop */
CmdIndex = CMD_STOP;
/* Toggoling LED4 to signal Stop */
LEDsState = LED4_TOGGLE;
AUDIODataReady = 0;
break;
}
}
/* Update the data length in the header of the recorded Wave */
f_lseek(&WavFile, 0);
/* Parse the wav file header and extract required information */
WavProcess_HeaderUpdate(pHeaderBuff, &WaveFormat);
f_write(&WavFile, pHeaderBuff, 44, (void*)&byteswritten);
/* Close file and unmount MyFilesystem */
f_close (&WavFile);
f_mount(NULL, 0, 1);
/* Change Command Index to Play */
CmdIndex = CMD_PLAY;
}
/**
* @brief Manages Audio process.
* @param None
* @retval Audio error
*/
AUDIO_ErrorTypeDef AUDIO_REC_Process(void)
{
uint32_t byteswritten = 0;
AUDIO_ErrorTypeDef audio_error = AUDIO_ERROR_NONE;
uint32_t elapsed_time;
static uint32_t prev_elapsed_time = 0xFFFFFFFF;
uint8_t str[10];
switch(AudioState)
{
case AUDIO_STATE_RECORD:
/* MAX Recording time reached, so stop audio interface and close file */
if(BufferCtl.fptr >= REC_SAMPLE_LENGTH)
{
AudioState = AUDIO_STATE_STOP;
break;
}
/* Check if there are Data to write in Usb Key */
if(BufferCtl.wr_state == BUFFER_FULL)
{
/* write buffer in file */
if(f_write(&WavFile, (uint8_t*)(BufferCtl.pcm_buff + BufferCtl.offset),
AUDIO_IN_PCM_BUFFER_SIZE,
(void*)&byteswritten) != FR_OK)
{
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"RECORD FAIL");
return AUDIO_ERROR_IO;
}
BufferCtl.fptr += byteswritten;
BufferCtl.wr_state = BUFFER_EMPTY;
}
/* Display elapsed time */
elapsed_time = BufferCtl.fptr / (DEFAULT_AUDIO_IN_FREQ * DEFAULT_AUDIO_IN_CHANNEL_NBR * 2);
if(prev_elapsed_time != elapsed_time)
{
prev_elapsed_time = elapsed_time;
sprintf((char *)str, "[%02d:%02d]", (int)(elapsed_time /60), (int)(elapsed_time%60));
BSP_LCD_SetTextColor(LCD_COLOR_CYAN);
BSP_LCD_DisplayStringAt(263, LINE(8), str, LEFT_MODE);
sprintf((char *)str, "%4d KB", (int)((int32_t)BufferCtl.fptr/1024));
BSP_LCD_DisplayStringAt(83, LINE(8), str, LEFT_MODE);
}
break;
case AUDIO_STATE_STOP:
/* Stop recorder */
BSP_AUDIO_IN_Stop();
/* Create a new file system */
if(f_lseek(&WavFile, 0) == FR_OK)
{
/* Update the wav file header save it into wav file */
WavProcess_HeaderUpdate(pHeaderBuff, &WaveFormat);
if(f_write(&WavFile, pHeaderBuff, sizeof(WAVE_FormatTypeDef), (void*)&byteswritten) == FR_OK)
{
audio_error = AUDIO_ERROR_EOF;
}
else
{
audio_error = AUDIO_ERROR_IO;
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"RECORD FAIL");
}
}
else
{
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"RECORD FAIL");
audio_error = AUDIO_ERROR_IO;
}
AudioState = AUDIO_STATE_IDLE;
/* Close file */
f_close(&WavFile);
break;
case AUDIO_STATE_PAUSE:
BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [PAUSE] ", LEFT_MODE);
BSP_AUDIO_IN_Pause();
AudioState = AUDIO_STATE_WAIT;
break;
case AUDIO_STATE_RESUME:
BSP_LCD_DisplayStringAt(250, LINE(14), (uint8_t *)" [RECORD] ", LEFT_MODE);
BSP_AUDIO_IN_Resume();
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_VOLUME_UP:
if(AudioInVolume <= 90)
{
AudioInVolume += 10;
}
BSP_AUDIO_IN_SetVolume(AudioInVolume);
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_VOLUME_DOWN:
if(AudioInVolume >= 10)
{
AudioInVolume -= 10;
}
BSP_AUDIO_IN_SetVolume(AudioInVolume);
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_NEXT:
case AUDIO_STATE_PREVIOUS:
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_WAIT:
case AUDIO_STATE_IDLE:
case AUDIO_STATE_INIT:
default:
/* Do Nothing */
break;
}
return audio_error;
}
/**
* @brief Manages Audio process.
* @param None
* @retval Audio error
*/
AUDIO_ErrorTypeDef AUDIO_REC_Process(void)
{
uint32_t byteswritten = 0;
AUDIO_ErrorTypeDef audio_error = AUDIO_ERROR_NONE;
uint32_t elapsed_time;
static uint32_t prev_elapsed_time = 0xFFFFFFFF;
uint8_t str[10];
static TS_StateTypeDef TS_State={0};
switch(AudioState)
{
case AUDIO_STATE_PRERECORD:
if(TS_State.touchDetected == 1) /* If previous touch has not been released, we don't proceed any touch command */
{
BSP_TS_GetState(&TS_State);
}
else
{
BSP_TS_GetState(&TS_State);
if(TS_State.touchDetected == 1)
{
if ((TS_State.touchX[0] > TOUCH_STOP_XMIN) && (TS_State.touchX[0] < TOUCH_STOP_XMAX) &&
(TS_State.touchY[0] > TOUCH_STOP_YMIN) && (TS_State.touchY[0] < TOUCH_STOP_YMAX))
{
AudioState = AUDIO_STATE_STOP;
}
else if ((TS_State.touchX[0] > TOUCH_RECORD_XMIN) && (TS_State.touchX[0] < TOUCH_RECORD_XMAX) &&
(TS_State.touchY[0] > TOUCH_RECORD_YMIN) && (TS_State.touchY[0] < TOUCH_RECORD_YMAX))
{
display_update = 1;
AudioState = AUDIO_STATE_RECORD;
}
else if((TS_State.touchX[0] > TOUCH_VOL_MINUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_MINUS_XMAX) &&
(TS_State.touchY[0] > TOUCH_VOL_MINUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_MINUS_YMAX))
{
AudioState = AUDIO_STATE_VOLUME_DOWN;
if(uwVolume >= 5)
{
uwVolume -= 5;
}
}
else if((TS_State.touchX[0] > TOUCH_VOL_PLUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_PLUS_XMAX) &&
(TS_State.touchY[0] > TOUCH_VOL_PLUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_PLUS_YMAX))
{
AudioState = AUDIO_STATE_VOLUME_UP;
if(uwVolume <= 95)
{
uwVolume += 5;
}
}
if ((AudioState == AUDIO_STATE_VOLUME_DOWN) || (AudioState == AUDIO_STATE_VOLUME_UP))
{
sprintf((char *)str, "Volume : %d ", (int)uwVolume);
BSP_LCD_ClearStringLine(7);
BSP_LCD_DisplayStringAtLine(7, str);
BSP_AUDIO_IN_SetVolume(uwVolume);
AudioState = AUDIO_STATE_PRERECORD;
}
}
else
{
AudioState = AUDIO_STATE_PRERECORD;
}
}
break;
case AUDIO_STATE_RECORD:
if (display_update)
{
BSP_LCD_SetTextColor(LCD_COLOR_RED); /* Display red record circle */
BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2,
(TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2,
(TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2);
BSP_LCD_SetFont(&LCD_LOG_TEXT_FONT);
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_DisplayStringAt(247, LINE(6), (uint8_t *)" [RECORD]", LEFT_MODE);
display_update = 0;
}
if(TS_State.touchDetected == 1) /* If previous touch has not been released, we don't proceed any touch command */
{
BSP_TS_GetState(&TS_State);
}
else
{
BSP_TS_GetState(&TS_State);
if(TS_State.touchDetected == 1)
{
if ((TS_State.touchX[0] > TOUCH_STOP_XMIN) && (TS_State.touchX[0] < TOUCH_STOP_XMAX) &&
(TS_State.touchY[0] > TOUCH_STOP_YMIN) && (TS_State.touchY[0] < TOUCH_STOP_YMAX))
{
AudioState = AUDIO_STATE_STOP;
}
else if ((TS_State.touchX[0] > TOUCH_PAUSE_XMIN) && (TS_State.touchX[0] < TOUCH_PAUSE_XMAX) &&
(TS_State.touchY[0] > TOUCH_PAUSE_YMIN) && (TS_State.touchY[0] < TOUCH_PAUSE_YMAX))
{
AudioState = AUDIO_STATE_PAUSE;
}
else if((TS_State.touchX[0] > TOUCH_VOL_MINUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_MINUS_XMAX) &&
(TS_State.touchY[0] > TOUCH_VOL_MINUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_MINUS_YMAX))
{
AudioState = AUDIO_STATE_VOLUME_DOWN;
}
else if((TS_State.touchX[0] > TOUCH_VOL_PLUS_XMIN) && (TS_State.touchX[0] < TOUCH_VOL_PLUS_XMAX) &&
(TS_State.touchY[0] > TOUCH_VOL_PLUS_YMIN) && (TS_State.touchY[0] < TOUCH_VOL_PLUS_YMAX))
{
AudioState = AUDIO_STATE_VOLUME_UP;
}
}
}
/* MAX Recording time reached, so stop audio interface and close file */
if(BufferCtl.fptr >= REC_SAMPLE_LENGTH)
{
display_update = 1;
AudioState = AUDIO_STATE_STOP;
break;
}
/* Check if there are Data to write to USB Key */
if(BufferCtl.wr_state == BUFFER_FULL)
{
/* write buffer in file */
if(f_write(&WavFile, (uint8_t*)(BufferCtl.pcm_buff + BufferCtl.offset),
AUDIO_IN_PCM_BUFFER_SIZE,
(void*)&byteswritten) != FR_OK)
{
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"RECORD FAIL");
return AUDIO_ERROR_IO;
}
BufferCtl.fptr += byteswritten;
BufferCtl.wr_state = BUFFER_EMPTY;
}
/* Display elapsed time */
elapsed_time = BufferCtl.fptr / (DEFAULT_AUDIO_IN_FREQ * DEFAULT_AUDIO_IN_CHANNEL_NBR * 2);
if(prev_elapsed_time != elapsed_time)
{
prev_elapsed_time = elapsed_time;
sprintf((char *)str, "[%02d:%02d]", (int)(elapsed_time /60), (int)(elapsed_time%60));
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_DisplayStringAt(263, LINE(8), str, LEFT_MODE);
sprintf((char *)str, "%4d KB", (int)((int32_t)BufferCtl.fptr/1024));
BSP_LCD_DisplayStringAt(83, LINE(8), str, LEFT_MODE);
}
break;
case AUDIO_STATE_STOP:
/* Stop recorder */
BSP_AUDIO_IN_Stop();
BSP_LCD_SetTextColor(LCD_COLOR_CYAN); /* Display blue cyan record circle */
BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2,
(TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2,
(TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2);
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_FillRect(TOUCH_STOP_XMIN, TOUCH_STOP_YMIN , /* Stop rectangle */
TOUCH_STOP_XMAX - TOUCH_STOP_XMIN,
TOUCH_STOP_YMAX - TOUCH_STOP_YMIN);
BSP_LCD_SetTextColor(LCD_COLOR_CYAN);
display_update = 1;
HAL_Delay(150);
if(f_lseek(&WavFile, 0) == FR_OK)
{
/* Update the wav file header save it into wav file */
WavProcess_HeaderUpdate(pHeaderBuff, &WaveFormat);
if(f_write(&WavFile, pHeaderBuff, sizeof(WAVE_FormatTypeDef), (void*)&byteswritten) == FR_OK)
{
audio_error = AUDIO_ERROR_EOF;
}
else
{
audio_error = AUDIO_ERROR_IO;
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"RECORD FAIL");
}
}
else
{
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAtLine(14, (uint8_t *)"RECORD FAIL");
audio_error = AUDIO_ERROR_IO;
}
AudioState = AUDIO_STATE_IDLE;
/* Close file */
f_close(&WavFile);
break;
case AUDIO_STATE_PAUSE:
BSP_LCD_SetTextColor(LCD_COLOR_RED); /* Displays red pause rectangles */
BSP_LCD_FillRect(TOUCH_PAUSE_XMIN, TOUCH_PAUSE_YMIN , 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN);
BSP_LCD_FillRect(TOUCH_PAUSE_XMIN + 20, TOUCH_PAUSE_YMIN, 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN);
BSP_LCD_SetTextColor(LCD_COLOR_CYAN); /* Display blue cyan record circle */
BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2,
(TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2,
(TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2);
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_DisplayStringAt(247, LINE(6), (uint8_t *)" [PAUSE] ", LEFT_MODE);
BSP_AUDIO_IN_Pause();
AudioState = AUDIO_STATE_WAIT;
break;
case AUDIO_STATE_RESUME:
BSP_LCD_SetTextColor(LCD_COLOR_CYAN); /* Displays blue cyan pause rectangles */
BSP_LCD_FillRect(TOUCH_PAUSE_XMIN, TOUCH_PAUSE_YMIN , 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN);
BSP_LCD_FillRect(TOUCH_PAUSE_XMIN + 20, TOUCH_PAUSE_YMIN, 15, TOUCH_PAUSE_YMAX - TOUCH_PAUSE_YMIN);
BSP_LCD_SetTextColor(LCD_COLOR_RED); /* Display red record circle */
BSP_LCD_FillCircle((TOUCH_RECORD_XMAX+TOUCH_RECORD_XMIN)/2,
(TOUCH_RECORD_YMAX+TOUCH_RECORD_YMIN)/2,
(TOUCH_RECORD_XMAX-TOUCH_RECORD_XMIN)/2);
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_DisplayStringAt(247, LINE(6), (uint8_t *)" [RECORD]", LEFT_MODE);
BSP_AUDIO_IN_Resume();
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_VOLUME_UP:
if(uwVolume <= 95)
{
uwVolume += 5;
}
sprintf((char *)str, "Volume : %d ", (int)uwVolume);
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_ClearStringLine(7);
BSP_LCD_DisplayStringAtLine(7, str);
BSP_AUDIO_IN_SetVolume(uwVolume);
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_VOLUME_DOWN:
if(uwVolume >= 5)
{
uwVolume -= 5;
}
sprintf((char *)str, "Volume : %d ", (int)uwVolume);
BSP_LCD_SetTextColor(LCD_COLOR_YELLOW);
BSP_LCD_ClearStringLine(7);
BSP_LCD_DisplayStringAtLine(7, str);
BSP_AUDIO_IN_SetVolume(uwVolume);
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_NEXT:
case AUDIO_STATE_PREVIOUS:
AudioState = AUDIO_STATE_RECORD;
break;
case AUDIO_STATE_WAIT:
if(TS_State.touchDetected == 1) /* If previous touch has not been released, we don't proceed any touch command */
{
BSP_TS_GetState(&TS_State);
}
else
{
BSP_TS_GetState(&TS_State);
if(TS_State.touchDetected == 1)
{
if ((TS_State.touchX[0] > TOUCH_RECORD_XMIN) && (TS_State.touchX[0] < TOUCH_RECORD_XMAX) &&
(TS_State.touchY[0] > TOUCH_RECORD_YMIN) && (TS_State.touchY[0] < TOUCH_RECORD_YMAX))
{
AudioState = AUDIO_STATE_RESUME;
}
else if ((TS_State.touchX[0] > TOUCH_PAUSE_XMIN) && (TS_State.touchX[0] < TOUCH_PAUSE_XMAX) &&
(TS_State.touchY[0] > TOUCH_PAUSE_YMIN) && (TS_State.touchY[0] < TOUCH_PAUSE_YMAX))
{
AudioState = AUDIO_STATE_RESUME;
}
}
}
case AUDIO_STATE_IDLE:
case AUDIO_STATE_INIT:
default:
/* Do Nothing */
break;
}
return audio_error;
}