352 lines
11 KiB
C++
352 lines
11 KiB
C++
#ifndef MockBackEnd
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#include "BackEnd.h"
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#include "./MainWidget.h"
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#include "../component/FrequentShower.h"
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#include "../component/ProgressBar.h"
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#include "IntermediateFrequencyWidget.h"
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#include "RadioWidget.h"
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#include "SweepFrequencyWidget.h"
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#include "am_fm_cw_modem.hpp"
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#include "device_uhd.h"
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#include <sndfile.h> // 用于音频文件写入
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#include <portaudio.h> // 用于音频播放
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#include <QAudioFormat>
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#include <QAudioOutput>
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#include <alsa/asoundlib.h>
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#include <algorithm>
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#include <vector>
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#define BUFFER_SIZE 512 // 缓冲区大小
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Device_UHD* ys_radio;
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AM_Demod am_demod;
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snd_pcm_t *handle;
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int err;
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namespace {
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double clamp_to_axis_range(double value, renderive::Range range) {
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const double lower = std::min(range.origin, range.target);
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const double upper = std::max(range.origin, range.target);
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return std::clamp(value, lower, upper);
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}
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}
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void Back_End::play(const QString& fileName){
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// ys_radio->YsSetFreq(value);
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}
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Back_End *Back_End::instance() {
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static Back_End temp;
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return &temp;
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}
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bool Back_End::match(QKeyEvent *e, const QString &function) {
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bool ok = function_map.contains(function);
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if(!ok){
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qDebug() << "error Global::match 失败！ 功能" << function << "不存在！" << e;
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}
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return e->key() == function_map[function];
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}
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void Back_End::YsSetFreq(quint64 value)
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{
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ys_radio->setDevParam("RX0",UHD_ParamType::CenterFreq,value);
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ys_radio->setDevZDParam("RX0",0,value,150000,300000);
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}
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qint64 Back_End::YsGetFreq() {
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return (qint64)ys_radio->getDevParam("RX0",UHD_ParamType::CenterFreq);
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}
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// 获取到频率
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void Back_End::YsReceiveFreq(quint64 freq) {
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qDebug() << "接收到频率:" << freq;
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Main_Widget::instance()->radio_widget->select_value_widget->set_frequent(freq);
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}
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// 音量设置
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void Back_End::YsSetAfGain(int value) {
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std::string command = "amixer sset Master " + std::to_string(value) + "%";
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int result = system(command.c_str());
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if (result != 0) {
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std::cerr << "Failed to set volume: " << result << std::endl;
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}
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}
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int Back_End::YsGetAfGain() {
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FILE *pipe = popen("amixer sget Master | grep 'Left:' | awk -F'[][]' '{ print $2 }'", "r");
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if (!pipe) {
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std::cerr << "Failed to run command" << std::endl;
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return -1;
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}
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char buffer[128];
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std::string result = "";
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while (!feof(pipe)) {
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if (fgets(buffer, 128, pipe) != NULL)
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result += buffer;
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}
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pclose(pipe);
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// Remove newline character if present
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result.erase(std::remove(result.begin(), result.end(), '\n'), result.end());
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// Convert string to integer
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int volume = std::stoi(result);
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return volume;
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}
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int Back_End::YsGetRfGain() {
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return 60;
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}
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// 增益设置
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void Back_End::YsSetRfGain(int value)
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{
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ys_radio->setDevParam("RX0",UHD_ParamType::Gain,value);
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qDebug()<<"增益设置"<<value;
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}
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void Back_End::call_back_data_func(int channel, void *pData, int i_length)
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{
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UHD_Struct_KFFT *pUHDData = (UHD_Struct_KFFT *)pData;
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// qDebug()<<"收到数据包大小"<<pUHDData->DataLen;
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//绘图用
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if(pUHDData->DataType == UHD_Enum_DataType::kd_fft ) {
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std::vector<double> data;
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data.clear();
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for(int i = 0; i < 1024; i++)
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{
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unsigned short ts = *((unsigned short *)pUHDData+32+i);
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//qDebug()<<(double) (ts/256);
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data.push_back((double) (ts/256));
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// if(i==512)
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// {qDebug()<<ts;}
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}
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// qDebug()<< "data.size ==" << data.size() << "data == "<< data;
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auto mw = Main_Widget::instance();
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auto rw = mw->radio_widget;
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auto iw = mw->intermediate_frequency_widget;
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rw->water_fall->give_data(QTime::currentTime(), data); // 中频瀑布图
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rw->spectrogram_line->give_data(data); // 中频频谱图
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iw->afterglow->give_data(data); // 余晖图
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iw->spectrogram_line->give_data(data); // 瀑布图
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// auto sl = Main_Widget::instance()->sweep_frequency_widget->sweep_frequency_line;
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// int n = sl->block_frequency_point_size();
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// sl->give_data(data);
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}
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if(pUHDData->DataType == UHD_Enum_DataType::zd_ddc)
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{
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// qDebug()<<"收到zd_ddc数据包大小"<<pUHDData->DataLen;
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short rbuf[512];
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std::complex<short>* cbuf_ptr = reinterpret_cast<std::complex<short>*>((char*)pData + 64);
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am_demod.step(cbuf_ptr, rbuf, 512); // 解调数据
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//Main_Widget::instance()->radio_widget->giv
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auto main = Main_Widget::instance();
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auto radio = main->radio_widget;
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if (radio && radio->audio_spectrogram_plot) {
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std::vector<double> data(512);
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auto axis = radio->audio_spectrogram_plot->power_axis();
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const auto range = axis ? axis->coord_range() : renderive::Range{-32768.0, 32767.0};
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for(int i = 0; i < 512; ++i){
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data[i] = clamp_to_axis_range(rbuf[i], range);
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}
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//qDebug() << data;
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radio->audio_spectrogram_plot->give_data(data);
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}
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//std::cout << "audio == " << rbuf[256] << std::endl;
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if (radio && radio->time_power) {
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auto axis = radio->time_power->value_axis();
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const auto range = axis ? axis->coord_range() : renderive::Range{-32768.0, 32767.0};
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radio->time_power->give_data(QTime::currentTime(), clamp_to_axis_range(rbuf[256], range));
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}
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// 保存音频流
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// ofstream fp_dst;
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// fp_dst.open("FM_DeMod.dat", ios::out | ios::binary | ios::app);
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// fp_dst.write((char *)rbuf, 512 * 2ll);
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// fp_dst.close();
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// snd_pcm_writei 是ALSA库提供的函数，用于将音频数据写入PCM设备。
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// handle：指向已打开的PCM设备句柄。
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// buffer：指向包含音频数据的缓冲区。
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// BUFFER_SIZE：要写入的数据帧数。
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// err：存储 snd_pcm_writei 函数的返回值。
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// == -EPIPE：检查返回值是否为 -EPIPE，这表示发生了XRUN（欠载）错误。XRUN发生在音频缓冲区为空时，即音频设备没有足够的数据进行播放。
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// 播放数据
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if ((err = snd_pcm_writei(handle, rbuf, BUFFER_SIZE)) == -EPIPE) {
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fprintf(stderr, "XRUN occurred\n");
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// 重新准备PCM设备
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if ((err = snd_pcm_prepare(handle)) < 0) {
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fprintf(stderr, "无法重新准备PCM设备: %s\n", snd_strerror(err));
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}
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} else if (err < 0) {
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fprintf(stderr, "无法写入音频数据: %s\n", snd_strerror(err));
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}
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// // 关闭音频设备
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// snd_pcm_close(handle);
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}
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}
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Back_End::Back_End() {
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function_map["主菜单"] = Qt::Key_F9;
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function_map["属性菜单"] = Qt::Key_F11;
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function_map["顶部菜单"] = Qt::Key_F10;
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function_map["退出"] = Qt::Key_Escape;
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function_map["确定"] = Qt::Key_F2;
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function_map["左移"] = Qt::Key_Left;
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function_map["右移"] = Qt::Key_Right;
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function_map["增加"] = Qt::Key_Up;
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function_map["减小"] = Qt::Key_Down;
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function_map["切换音量/RF Gain"] = Qt::Key_F1;
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function_map["特别增加"] = Qt::Key_PageUp;
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function_map["特别减小"] = Qt::Key_PageDown;
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ys_radio = new Device_UHD();
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uhd::device_addrs_t tmp_add = ys_radio->findDevices();
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while(ys_radio->openDevice(tmp_add[0]) != true)
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{
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qDebug()<<"9002连接失败,重试中...";
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sleep(1);
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ys_radio->openDevice(tmp_add[0]);
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}
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qDebug()<<"9002设备连接成功";
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quint64 value = 10125000;
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ys_radio->setDevParam("RX0",UHD_ParamType::CenterFreq,value); // 宽带设置
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ys_radio->setDevParam("RX0",UHD_ParamType::BandWidth,100000); // 改带宽，频谱带宽不变
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ys_radio->setDevParam("RX0",UHD_ParamType::SampleFreq,480000); // 改采样率，频谱带宽变化
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ys_radio->setDevParam("RX0",UHD_ParamType::Gain,33);
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// ys_radio->setDevDataSwitch("RX0",KDDCSwitch,0,true);
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ys_radio->setDevFFTParam(UHD_FFTWin::blkmc,_1024,10); // FFT设置
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ys_radio->setDevDataSwitch("RX0",KFFTSwitch,0,true);
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ys_radio->setDevZDParam("RX0",0,value,15000,30000); // 窄带设置
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ys_radio->setDevDataSwitch("RX0",ZDDCSwitch,0, true);
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ys_radio->startDevRecv(0);
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//ys_radio->stopDevRecv(0);
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ys_radio->callBackData = std::bind(&Back_End::call_back_data_func, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3);
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// ys_radio->hide();
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// connect(ys_radio, &YsRadio::YsGetFreq, this, &Back_End::YsReceiveFreq);
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// connect(ys_radio,&YsRadio::YsReceiveSpectrumData,this, &Back_End::YsReceiveSpectrumData);
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// 打开音频设备
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if ((err = snd_pcm_open(&handle, "default", SND_PCM_STREAM_PLAYBACK, 0)) < 0) {
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fprintf(stderr, "无法打开音频设备: %s\n", snd_strerror(err));
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exit(1);
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} else{
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qDebug()<<"打开音频设备成功";
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}
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// 设置音频参数
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snd_pcm_hw_params_t *params;
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snd_pcm_hw_params_alloca(¶ms);
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// 初始化硬件参数结构
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if ((err = snd_pcm_hw_params_any(handle, params)) < 0) {
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fprintf(stderr, "无法初始化硬件参数结构: %s\n", snd_strerror(err));
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// goto close_device;
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}else{
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qDebug()<<"初始化硬件参数结构成功";
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}
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// 设置访问类型
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if ((err = snd_pcm_hw_params_set_access(handle, params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
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fprintf(stderr, "无法设置访问类型: %s\n", snd_strerror(err));
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// goto close_device;
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}else{
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qDebug()<<"设置访问类型";
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}
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// 设置样本格式
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if ((err = snd_pcm_hw_params_set_format(handle, params, SND_PCM_FORMAT_S16_LE)) < 0) {
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fprintf(stderr, "无法设置样本格式: %s\n", snd_strerror(err));
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// goto close_device;
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}else{
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qDebug()<<"设置样本格式";
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}
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// 设置采样率
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unsigned int rate = 30000;//44100
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if ((err = snd_pcm_hw_params_set_rate_near(handle, params, &rate, 0)) < 0) {
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fprintf(stderr, "无法设置采样率: %s\n", snd_strerror(err));
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// goto close_device;
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}else{
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qDebug()<<"设置采样率";
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}
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// 设置声道数
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if ((err = snd_pcm_hw_params_set_channels(handle, params, 1)) < 0) {
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fprintf(stderr, "无法设置声道数: %s\n", snd_strerror(err));
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// goto close_device;
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}else{
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qDebug()<<"设置声道数";
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}
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// 应用硬件参数
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if ((err = snd_pcm_hw_params(handle, params)) < 0) {
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fprintf(stderr, "无法应用硬件参数: %s\n", snd_strerror(err));
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// goto close_device;
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}else{
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qDebug()<<"应用硬件参数";
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}
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// 准备播放
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if ((err = snd_pcm_prepare(handle)) < 0) {
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fprintf(stderr, "无法准备播放: %s\n", snd_strerror(err));
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// goto close_device;
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} else{
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qDebug()<<"准备播放";
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}
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//close_device:
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// // 关闭音频设备
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// snd_pcm_close(handle);
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}
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QString Back_End::get_audio_file_location() {
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return "./";
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}
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QString Back_End::get_screenshot_save_file_name() {
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QDateTime currentDateTime = QDateTime::currentDateTime();
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return "截屏_" +
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currentDateTime.toString()
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.replace(":", "_")
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.replace("/", "_") + ".png";
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}
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QString Back_End::get_screenshot_save_dir_path() {
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return "/media/sdcard1/";
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}
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#endif
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