62 lines
1.3 KiB
C++
62 lines
1.3 KiB
C++
#include <iostream>
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#include <vector>
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#include <math.h>
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#include <unistd.h>
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#include <thread>
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#include <atomic>
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#include <pcaudiolib/audio.h>
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using namespace std;
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int main()
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{
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audio_object* ao;
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ao=create_audio_device_object(0, "teller", "");
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if(!ao) {
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cerr<<"Unable to open audio file "<<endl;
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return 0;
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}
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int res = audio_object_open(ao, AUDIO_OBJECT_FORMAT_S16LE, 44100, 1);
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if(res < 0) {
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cerr<<"Error opening audio: "<<audio_object_strerror(ao, res)<<endl;
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}
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std::atomic<int64_t> counter = 0;
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auto player = [&]() {
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vector<int16_t> data;
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int ourcounter=0;
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data.reserve(44100);
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while(counter >= 0) {
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data.clear();
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if(ourcounter < counter) {
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for(int n=0; n < 250; ++n) {
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int16_t val = 20000 * sin((n/44100.0) * 500 * 2 * M_PI);
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data.push_back(val);
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}
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ourcounter++;
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if(counter - ourcounter > 1000)
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ourcounter = counter;
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}
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else {
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for(int n=0; n < 150; ++n) {
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data.push_back(0);
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}
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}
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audio_object_write(ao, &data[0], data.size() * sizeof(decltype(data)::value_type));
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// audio_object_flush(ao);
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}
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};
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std::thread athread(player);
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string line;
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while(getline(cin, line)) {
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counter++;
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}
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counter = -1;
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athread.join();
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sleep(1);
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}
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