73 lines
2.0 KiB
C++
73 lines
2.0 KiB
C++
/**
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* @file player-sdmmc-vban.ino
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* @author Phil Schatzmann
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* @brief decodes mp3 to vban: We need to use a queue to prevent delays to get too big.
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* We try to keep the queue filled, so that we can always provide pcm data to vban
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*/
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#include "AudioTools.h"
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#include "AudioTools/AudioCodecs/CodecMP3Helix.h"
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#include "AudioTools/Communication/VBANStream.h"
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#include "AudioTools/Disk/AudioSourceSDMMC.h" // or AudioSourceIdxSDMMC.h
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const char *startFilePath="/";
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const char* ext="mp3";
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const int mp3_pcm_size = 14000;
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AudioInfo info(44100,2,16);
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AudioSourceSDMMC source(startFilePath, ext);
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RingBuffer<uint8_t> ring_buffer(mp3_pcm_size*3);
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QueueStream<uint8_t> queue(ring_buffer);
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MP3DecoderHelix decoder; // or change to MP3DecoderMAD
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AudioPlayer player(source, queue, decoder);
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VBANStream out;
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StreamCopy copier(out, queue, 2048); // 44100 needs 2048
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void fillQueue(){
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// fill queue when smaller then limit
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if(ring_buffer.availableForWrite() >= mp3_pcm_size){
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player.copy();
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// activate copy when limit is reached
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if (!copier.isActive() && ring_buffer.available()>=23000){
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copier.setActive(true);
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LOGI("copier active");
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}
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}
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LOGI("available: %d - avail to write: %d", ring_buffer.available(), ring_buffer.availableForWrite());
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}
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void setup() {
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Serial.begin(115200);
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AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning);
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// setup output
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auto cfg = out.defaultConfig(TX_MODE);
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cfg.copyFrom(info);
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cfg.ssid = "ssid";
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cfg.password = "password";
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cfg.stream_name = "Stream1";
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cfg.target_ip = IPAddress{192,168,1,37};
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cfg.throttle_active = true;
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//cfg.throttle_correction_us = 0;
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if (!out.begin(cfg)) stop();
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// setup player
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player.setVolume(0.7);
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player.begin();
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// select file with setPath() or setIndex()
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//player.setPath("/ZZ Top/Unknown Album/Lowrider.mp3");
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//player.setIndex(1); // 2nd file
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queue.begin(); // start queue
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copier.setActive(false); // deactivate copy
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}
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void loop() {
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fillQueue();
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// output from queue
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copier.copy();
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} |