C++ (Cpp) wav_writer_write_int16 예제들

예제 #1

파일: avdtp_sink_test.c 프로젝트: notmikeb/btstack

static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){
    UNUSED(sample_rate);
    UNUSED(context);

#ifdef STORE_SBC_TO_WAV_FILE
    wav_writer_write_int16(num_samples*num_channels, data);
    frame_count++;
#endif

    total_num_samples+=num_samples*num_channels;

#ifdef HAVE_PORTAUDIO
    if (!pa_stream_started){
        /* -- start stream -- */
        PaError err = Pa_StartStream(stream);
        if (err != paNoError){
            printf("Error starting the stream: \"%s\"\n",  Pa_GetErrorText(err));
            return;
        }
        pa_stream_started = 1; 
        pa_stream_paused  = 1;
    }
    btstack_ring_buffer_write(&ring_buffer, (uint8_t *)data, num_samples*num_channels*2);
#endif
}

예제 #2

파일: sco_demo_util.c 프로젝트: bittercrow/btstack

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 */
}

예제 #3

파일: avdtp_sink_test.c 프로젝트: bittercrow/btstack

static void handle_pcm_data(int16_t * data, int num_samples, int num_channels, int sample_rate, void * context){
    UNUSED(sample_rate);
    UNUSED(context);

#ifdef STORE_SBC_TO_WAV_FILE
    wav_writer_write_int16(num_samples*num_channels, data);
    frame_count++;
#endif

#ifdef HAVE_PORTAUDIO
    // store pcm samples in ring buffer
    btstack_ring_buffer_write(&ring_buffer, (uint8_t *)data, num_samples*num_channels*2);

    if (!audio_stream_started){
        audio_stream_paused  = 1;
        /* -- start stream -- */
        PaError err = Pa_StartStream(stream);
        if (err != paNoError){
            printf("Error starting the stream: \"%s\"\n",  Pa_GetErrorText(err));
            return;
        }
        audio_stream_started = 1; 
    }
#endif

#ifdef HAVE_AUDIO_DMA
    // store in ring buffer
    uint8_t * write_data = start_of_buffer(write_buffer);
    uint16_t len = num_samples*num_channels*2;
    memcpy(write_data, data, len);
    audio_samples_len[write_buffer] = len;

    // add/drop audio frame to fix drift
    if (sbc_samples_fix > 0){
        memcpy(write_data + len, write_data + len - 4, 4);
        audio_samples_len[write_buffer] += 4;
    }
    if (sbc_samples_fix < 0){
        audio_samples_len[write_buffer] -= 4;
    }

    write_buffer = next_buffer(write_buffer);
#endif
}

예제 #4

파일: portaudio_test.c 프로젝트: bittercrow/btstack

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();
}