from desktop pc

espmusicmouse/.vscode/extensions.json

@@ -1,7 +1,10 @@
-{
-    // See http://go.microsoft.com/fwlink/?LinkId=827846
-    // for the documentation about the extensions.json format
-    "recommendations": [
-        "platformio.platformio-ide"
-    ]
-}
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}

espmusicmouse/host_driver/music/.gitignore

@@ -0,0 +1 @@
+**/*.mp3

pyaudioplayeralsa/CMakeLists.txt

@@ -1,6 +0,0 @@
-cmake_minimum_required(VERSION 3.16)
-
-project("pyaudioplayeralsa")
-
-add_executable(play main.cpp src/WavFile.cpp)
-target_link_libraries(play -lasound -pthread)

pyaudioplayeralsa/main.cpp

@@ -1,177 +0,0 @@
-/*
- * Simple sound playback using ALSA API and libasound.
- *
- * Compile:
- * $ cc -o play sound_playback.c -lasound
- * 
- * Usage:
- * $ ./play <sample_rate> <channels> <seconds> < <file>
- * 
- * Examples:
- * $ ./play 44100 2 5 < /dev/urandom
- * $ ./play 22050 1 8 < /path/to/file.wav
- *
- * Copyright (C) 2009 Alessandro Ghedini <al3xbio@gmail.com>
- * --------------------------------------------------------------
- * "THE BEER-WARE LICENSE" (Revision 42):
- * Alessandro Ghedini wrote this file. As long as you retain this
- * notice you can do whatever you want with this stuff. If we
- * meet some day, and you think this stuff is worth it, you can
- * buy me a beer in return.
- * --------------------------------------------------------------
- */
-
-#include <alsa/asoundlib.h>
-#include <stdio.h>
-
-#include <fstream>
-
-#include "src/WavFile.h"
-
-#include <future>
-#include <thread>
-#include <chrono>
-#include <queue>
-
-#define PCM_DEVICE "default"
-
-std::deque<std::string> queue;
-std::mutex queueMutex;
-
-static std::string getInput()
-{
-
-  std::cout << "starting input thread" << std::endl;
-  while (true)
-  {
-    std::string result;
-    std::getline(std::cin, result);
-    {
-      std::lock_guard<std::mutex> guard(queueMutex);
-      std::cout << "adding to queue" << std::endl;
-      queue.push_back(result);
-    }
-  }
-}
-
-int main(int argc, char **argv)
-{
-  std::ifstream wavFileStream("test.wav", std::ios::binary);
-  WavFile wav(wavFileStream);
-  wavFileStream.close();
-  std::cout << "Wav samples " << wav.size() << std::endl;
-
-  unsigned int pcm, tmp, dir;
-  snd_pcm_t *pcm_handle;
-  snd_pcm_hw_params_t *params;
-  snd_pcm_uframes_t frames;
-  char *buff;
-  int buff_size, loops;
-
-  /* Open the PCM device in playback mode */
-  if (pcm = snd_pcm_open(&pcm_handle, PCM_DEVICE,
-                         SND_PCM_STREAM_PLAYBACK, 0) < 0)
-    printf("ERROR: Can't open \"%s\" PCM device. %s\n",
-           PCM_DEVICE, snd_strerror(pcm));
-
-  /* Allocate parameters object and fill it with default values*/
-  snd_pcm_hw_params_alloca(&params);
-
-  snd_pcm_hw_params_any(pcm_handle, params);
-
-  /* Set parameters */
-  if (pcm = snd_pcm_hw_params_set_access(pcm_handle, params,
-                                         SND_PCM_ACCESS_RW_INTERLEAVED) < 0)
-    printf("ERROR: Can't set interleaved mode. %s\n", snd_strerror(pcm));
-
-  if (pcm = snd_pcm_hw_params_set_format(pcm_handle, params,
-                                         SND_PCM_FORMAT_S16_LE) < 0)
-    printf("ERROR: Can't set format. %s\n", snd_strerror(pcm));
-
-  if (pcm = snd_pcm_hw_params_set_channels(pcm_handle, params, wav.channels()) < 0)
-    printf("ERROR: Can't set channels number. %s\n", snd_strerror(pcm));
-
-  snd_pcm_hw_params_set_buffer_size(pcm_handle, params, 2 * 2048);
-
-  unsigned int rate = wav.sampleRate();
-  if (pcm = snd_pcm_hw_params_set_rate_near(pcm_handle, params, &rate, 0) < 0)
-    printf("ERROR: Can't set rate. %s\n", snd_strerror(pcm));
-
-  /* Write parameters */
-  if (pcm = snd_pcm_hw_params(pcm_handle, params) < 0)
-    printf("ERROR: Can't set harware parameters. %s\n", snd_strerror(pcm));
-
-  /* Resume information */
-  printf("PCM name: '%s'\n", snd_pcm_name(pcm_handle));
-
-  printf("PCM state: %s\n", snd_pcm_state_name(snd_pcm_state(pcm_handle)));
-
-  snd_pcm_hw_params_get_channels(params, &tmp);
-
-  printf("channels: %i ", tmp);
-
-  if (tmp == 1)
-    printf("(mono)\n");
-  else if (tmp == 2)
-    printf("(stereo)\n");
-
-  snd_pcm_hw_params_get_rate(params, &tmp, 0);
-  printf("rate: %d bps\n", tmp);
-
-  /* Allocate buffer to hold single period */
-  snd_pcm_hw_params_get_period_size(params, &frames, 0);
-
-  buff_size = frames * wav.channels() * 2 /* 2 -> sample size */;
-  buff = (char *)malloc(buff_size);
-  std::cout << "Buffer size " << buff_size << " frames " << frames << std::endl;
-
-  snd_pcm_hw_params_get_period_time(params, &tmp, NULL);
-
-  std::thread inputThread(getInput);
-  bool playing = true;
-
-  size_t wavFilePosition = 0;
-  while (wavFilePosition < wav.size())
-  {
-    {
-      std::lock_guard<std::mutex> guard(queueMutex);
-      if (queue.size() > 0)
-      {
-        queue.pop_back();
-        std::cout << "Toggling" << std::endl;
-        //snd_pcm_drain(pcm_handle);
-        std::cout << "Done" << std::endl;
-        playing = !playing;
-        if (playing)
-        {
-          std::cout << "continuing at " << wavFilePosition << std::endl;
-          snd_pcm_pause(pcm_handle, 0);
-          //snd_pcm_prepare(pcm_handle);
-        }
-        else
-          snd_pcm_pause(pcm_handle, 1);
-      }
-    }
-
-    if (!playing)
-      continue;
-    size_t dataToWrite = std::min(size_t(buff_size), wav.size() - wavFilePosition);
-    int framesToWrite = dataToWrite / wav.channels() / 2;
-    if (pcm = snd_pcm_writei(pcm_handle, wav[wavFilePosition], framesToWrite) == -EPIPE)
-    {
-      std::cout << "XRUN at wav position " << wavFilePosition << std::endl;
-      snd_pcm_prepare(pcm_handle);
-    }
-    else if (pcm < 0)
-      printf("ERROR. Can't write to PCM device. %s\n", snd_strerror(pcm));
-
-    wavFilePosition += dataToWrite;
-  }
-
-  std::cout << "done filling buffer" << std::endl;
-  snd_pcm_drain(pcm_handle);
-  snd_pcm_close(pcm_handle);
-  free(buff);
-
-  return 0;
-}

pyaudioplayeralsa/plan.md

@@ -1,5 +0,0 @@
-- play wav file [ok]
-  - read & parse wav file [ok]
-- stop wave file in the middle, wait 2 secs and continue
-- fade in/out 
-- mix second wave file on top (some effect)

pyaudioplayeralsa/src/WavFile.h

@@ -1,61 +0,0 @@
-#pragma once
-
-#include <iostream>
-#include <memory>
-
-template <size_t len>
-std::string readStr(std::istream &str)
-{
-  char buff[len];
-  str.read(buff, len);
-  return std::string(buff, len);
-}
-
-template <typename T>
-T read(std::istream &str)
-{
-  T res;
-  str.read((char *)&res, sizeof(res));
-  return res;
-}
-
-class WavFile
-{
-public:
-  WavFile(std::istream &str)
-  {
-    auto chunkId = readStr<4>(str);
-    auto chunkSize = read<uint32_t>(str);
-    auto format = readStr<4>(str);
-
-    auto subchunk1Id = readStr<4>(str);
-    auto subchunk1Size = read<uint32_t>(str);
-
-    auto audioFormat = read<uint16_t>(str);
-    numChannels_ = read<uint16_t>(str);
-    sampleRate_ = read<uint32_t>(str);
-    auto byteRate = read<uint32_t>(str);
-
-    auto blockAlign = read<uint16_t>(str);
-    bitsPerSample_ = read<uint16_t>(str);
-
-    auto subchunk2Id = readStr<4>(str);
-    dataSize_ = read<uint32_t>(str);
-
-    data_ = std::unique_ptr<char>(new char[dataSize_]);
-    str.read(data_.get(), dataSize_);
-  }
-
-  uint32_t sampleRate() const { return sampleRate_; }
-  uint16_t channels() const { return numChannels_; }
-  uint32_t size() const { return dataSize_; }
-
-  const char *operator[](int offset) const { return &data_.get()[offset]; }
-
-private:
-  std::unique_ptr<char> data_;
-  uint32_t sampleRate_;
-  uint16_t bitsPerSample_;
-  uint32_t dataSize_;
-  uint16_t numChannels_;
-};