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92 lines
2.2 KiB
92 lines
2.2 KiB
#include "output_test.h"
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audio_block_t * TestAudioOutput::block_left_1st = NULL;
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audio_block_t * TestAudioOutput::block_right_1st = NULL;
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bool TestAudioOutput::update_responsibility = false;
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void TestAudioOutput::begin(void)
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{
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update_responsibility = update_setup();
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active = true;
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}
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void TestAudioOutput::isr(void)
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{
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if (TestAudioOutput::update_responsibility) AudioStream::update_all();
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}
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void TestAudioOutput::update(void)
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{
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// null audio device: discard all incoming data
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if (!active) return;
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audio_block_t *block = receiveReadOnly(0);
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audio_block_t *blockRight = receiveReadOnly(1);
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if (block) {
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if (_saveToFile) {
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if (!blockRight){
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_outputFile.write((char*)block->data, 256);
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_dataSize += 256;
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} else {
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int16_t interleaved[256];
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if (blockRight) {
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memcpy_tdm_tx(interleaved, block->data, blockRight->data);
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} else
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memset(interleaved, 0, 512);
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_outputFile.write((char*)interleaved, 512);
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_dataSize += 512;
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}
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}
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/*
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Serial.print("Ch1:");
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for (int i=0; i<AUDIO_BLOCK_SAMPLES;i++) {
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if (block->data[i] < 0)
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Serial.printf("-%04x ", -block->data[i]);
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else
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Serial.printf(" %04x ", block->data[i]);
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}
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Serial.println();
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*/
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release(block);
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if (blockRight) {
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/*
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Serial.print("Ch2:");
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for (int i=0; i<AUDIO_BLOCK_SAMPLES;i++) {
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if (blockRight->data[i] < 0)
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Serial.printf("-%04x ", -blockRight->data[i]);
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else
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Serial.printf(" %04x ", blockRight->data[i]);
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}
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Serial.println();
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*/
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release(blockRight);
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}
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} else {
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//Serial.print(" empty block \n");
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}
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}
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// Taken from https://github.com/PaulStoffregen/Audio/blob/master/output_tdm.cpp
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void TestAudioOutput::memcpy_tdm_tx(int16_t *dest, int16_t *src1, int16_t *src2)
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{
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int16_t i, in1, in2, out1, out2;
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for (i=0; i < AUDIO_BLOCK_SAMPLES; i++) {
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*dest = *src1++;
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*(dest + 1) = *src2++;
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dest += 2;
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}
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}
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unsigned char TestAudioOutput::test_output_wav_header[] = {
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0x52, 0x49, 0x46, 0x46, 0x38, 0x00, 0x00, 0x00, 0x57, 0x41, 0x56, 0x45,
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0x66, 0x6d, 0x74, 0x20, 0x10, 0x00, 0x00, 0x00, 0x01, 0x00, 0x02, 0x00,
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0x44, 0xac, 0x00, 0x00, 0x10, 0xb1, 0x02, 0x00, 0x04, 0x00, 0x10, 0x00,
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0x64, 0x61, 0x74, 0x61, 0x14, 0x00, 0x00, 0x00
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};
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