static void close_media_processing(void){
if (!media_initialized) return;
media_initialized = 0;
#ifdef STORE_SBC_TO_WAV_FILE
printf(" Close wav writer.\n");
wav_writer_close();
int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr;
printf(" Decoding done. Processed totaly %d frames:\n - %d good\n - %d bad\n - %d zero frames\n", total_frames_nr, state.good_frames_nr, state.bad_frames_nr, state.zero_frames_nr);
printf(" Written %d frames to wav file: %s\n\n", frame_count, wav_filename);
#endif
#ifdef STORE_SBC_TO_SBC_FILE
fclose(sbc_file);
#endif
#ifdef HAVE_PORTAUDIO
PaError err = Pa_StopStream(stream);
if (err != paNoError){
printf("Error stopping the stream: \"%s\"\n", Pa_GetErrorText(err));
return;
}
pa_stream_started = 0;
err = Pa_CloseStream(stream);
if (err != paNoError){
printf("Error closing the stream: \"%s\"\n", Pa_GetErrorText(err));
return;
}
err = Pa_Terminate();
if (err != paNoError){
printf("Error terminating portaudio: \"%s\"\n", Pa_GetErrorText(err));
return;
}
#endif
}
void sco_demo_close(void){
printf("SCO demo close\n");
printf("SCO demo statistics: ");
#ifdef ENABLE_HFP_WIDE_BAND_SPEECH
if (negotiated_codec == HFP_CODEC_MSBC){
printf("Used mSBC with PLC, number of processed frames: \n - %d good frames, \n - %d zero frames, \n - %d bad frames.\n", decoder_state.good_frames_nr, decoder_state.zero_frames_nr, decoder_state.bad_frames_nr);
} else
#endif
{
printf("Used CVSD with PLC, number of proccesed frames: \n - %d good frames, \n - %d bad frames.\n", cvsd_plc_state.good_frames_nr, cvsd_plc_state.bad_frames_nr);
}
negotiated_codec = -1;
#if (SCO_DEMO_MODE == SCO_DEMO_MODE_SINE) || (SCO_DEMO_MODE == SCO_DEMO_MODE_MICROPHONE)
#if defined(SCO_WAV_FILENAME)
wav_writer_close();
#endif
#ifdef HAVE_PORTAUDIO
portaudio_terminate();
#endif
#endif
}
static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){
UNUSED(context);
UNUSED(sample_rate);
UNUSED(data);
UNUSED(num_samples);
UNUSED(num_channels);
#if (SCO_DEMO_MODE == SCO_DEMO_MODE_SINE) || (SCO_DEMO_MODE == SCO_DEMO_MODE_MICROPHONE)
// printf("handle_pcm_data num samples %u, sample rate %d\n", num_samples, num_channels);
#ifdef HAVE_PORTAUDIO
// samples in callback in host endianess, ready for PortAudio playback
btstack_ring_buffer_write(&pa_output_ring_buffer, (uint8_t *)data, num_samples*num_channels*2);
#endif /* HAVE_PORTAUDIO */
#ifdef SCO_WAV_FILENAME
if (!num_samples_to_write) return;
num_samples = btstack_min(num_samples, num_samples_to_write);
num_samples_to_write -= num_samples;
wav_writer_write_int16(num_samples, data);
if (num_samples_to_write == 0){
wav_writer_close();
}
#endif /* SCO_WAV_FILENAME */
#endif /* Demo mode sine or microphone */
}
static void media_processing_close(void){
if (is_media_initialized) return;
is_media_initialized = 0;
#ifdef STORE_SBC_TO_WAV_FILE
wav_writer_close();
int total_frames_nr = state.good_frames_nr + state.bad_frames_nr + state.zero_frames_nr;
printf("WAV Writer: Decoding done. Processed totaly %d frames:\n - %d good\n - %d bad\n", total_frames_nr, state.good_frames_nr, total_frames_nr - state.good_frames_nr);
printf("WAV Writer: Written %d frames to wav file: %s\n", frame_count, wav_filename);
#endif
#ifdef STORE_SBC_TO_SBC_FILE
fclose(sbc_file);
#endif
#if defined(HAVE_PORTAUDIO) || defined (HAVE_AUDIO_DMA)
audio_stream_started = 0;
#endif
#ifdef HAVE_PORTAUDIO
printf("PortAudio: Stream closed\n");
log_info("PortAudio: Stream closed");
PaError err = Pa_StopStream(stream);
if (err != paNoError){
printf("Error stopping the stream: \"%s\"\n", Pa_GetErrorText(err));
log_error("Error stopping the stream: \"%s\"", Pa_GetErrorText(err));
return;
}
err = Pa_CloseStream(stream);
if (err != paNoError){
printf("Error closing the stream: \"%s\"\n", Pa_GetErrorText(err));
log_error("Error closing the stream: \"%s\"", Pa_GetErrorText(err));
return;
}
err = Pa_Terminate();
if (err != paNoError){
printf("Error terminating portaudio: \"%s\"\n", Pa_GetErrorText(err));
log_error("Error terminating portaudio: \"%s\"", Pa_GetErrorText(err));
return;
}
#endif
#ifdef HAVE_AUDIO_DMA
hal_audio_dma_close();
#endif
}
static void sco_demo_receive_CVSD(uint8_t * packet, uint16_t size){
if (!num_samples_to_write) return;
int16_t audio_frame_out[128]; //
if (size > sizeof(audio_frame_out)){
printf("sco_demo_receive_CVSD: SCO packet larger than local output buffer - dropping data.\n");
return;
}
#if defined(SCO_WAV_FILENAME) || defined(USE_PORTAUDIO)
const int audio_bytes_read = size - 3;
const int num_samples = audio_bytes_read / CVSD_BYTES_PER_FRAME;
// convert into host endian
int16_t audio_frame_in[128];
int i;
for (i=0;i<num_samples;i++){
audio_frame_in[i] = little_endian_read_16(packet, 3 + i * 2);
}
btstack_cvsd_plc_process_data(&cvsd_plc_state, audio_frame_in, num_samples, audio_frame_out);
#endif
#ifdef SCO_WAV_FILENAME
// Samples in CVSD SCO packet are in little endian, ready for wav files (take shortcut)
const int samples_to_write = btstack_min(num_samples, num_samples_to_write);
wav_writer_write_le_int16(samples_to_write, audio_frame_out);
num_samples_to_write -= samples_to_write;
if (num_samples_to_write == 0){
wav_writer_close();
}
#endif
#ifdef USE_PORTAUDIO
btstack_ring_buffer_write(&pa_output_ring_buffer, (uint8_t *)audio_frame_out, audio_bytes_read);
#endif
}
static void write_wav_data(int16_t * data, int num_frames, int num_channels, int sample_rate){
(void)sample_rate;
wav_writer_write_int16(num_frames*num_channels, data);
total_num_samples+=num_frames*num_channels;
if (total_num_samples>5*SAMPLE_RATE) wav_writer_close();
}
