add

StudyNotes/Audio Video/08_record_audio/08_record_audio.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.14.1, 2021-03-19T23:50:01. -->
+<!-- Written by QtCreator 4.14.1, 2021-03-22T23:21:25. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

StudyNotes/Audio Video/08_record_audio/mainwindow.cpp

@@ -23,7 +23,7 @@ extern "C" {
     #define FILENAME "F:/out.pcm"
 #else
     #define FMT_NAME "avfoundation"
-    #define DEVICE_NAME ":0"
+    #define DEVICE_NAME ":1"
     #define FILENAME "/Users/zhushuangquan/Desktop/out.pcm"
 #endif
 
@@ -44,7 +44,7 @@ void MainWindow::on_audioButton_clicked() {
 
     qDebug() << "on_audioButton_clicked" << QThread::currentThread();
 
-    return;
+//    return;
     // 获取输入格式对象
     AVInputFormat *fmt = av_find_input_format(FMT_NAME);
     if (!fmt) {

StudyNotes/Audio Video/09_record_audio_sub_thread/09_record_audio_sub_thread.pro

@@ -38,6 +38,7 @@ win32 {
 
 macx {
     FFMPEG_HOME = /usr/local/Cellar/ffmpeg/4.3.2
+    QMAKE_INFO_PLIST = mac/Info.plist
 }
 
 INCLUDEPATH += $${FFMPEG_HOME}/include

StudyNotes/Audio Video/09_record_audio_sub_thread/09_record_audio_sub_thread.pro.user

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.14.1, 2021-03-19T23:56:07. -->
+<!-- Written by QtCreator 4.14.1, 2021-03-22T23:19:43. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>

StudyNotes/Audio Video/09_record_audio_sub_thread/audiothread.cpp

@@ -2,6 +2,7 @@
 
 #include <QDebug>
 #include <QFile>
+#include <QDateTime>
 
 extern "C" {
 // 设备
@@ -18,11 +19,11 @@ extern "C" {
     // 设备名称
     #define DEVICE_NAME "audio=线路输入 (3- 魅声T800)"
     // PCM文件名
-    #define FILENAME "F:/out.pcm"
+    #define FILEPATH "F:/"
 #else
     #define FMT_NAME "avfoundation"
-    #define DEVICE_NAME ":0"
-    #define FILENAME "/Users/zhushuangquan/Desktop/out.pcm"
+    #define DEVICE_NAME ":1"
+    #define FILEPATH "/Users/zhushuangquan/Desktop/"
 #endif
 
 AudioThread::AudioThread(QObject *parent) : QThread(parent) {
@@ -32,6 +33,8 @@ AudioThread::AudioThread(QObject *parent) : QThread(parent) {
 }
 
 AudioThread::~AudioThread() {
+    // 断开所有的连接
+    disconnect();
     // 内存回收之前，正常结束线程
     requestInterruption();
     // 安全退出
@@ -65,12 +68,16 @@ void AudioThread::run() {
     }
 
     // 文件名
-    QFile file(FILENAME);
+    QString filename = FILEPATH;
+
+    filename += QDateTime::currentDateTime().toString("MM_dd_HH_mm_ss");
+    filename += ".pcm";
+    QFile file(filename);
 
     // 打开文件
     // WriteOnly：只写模式。如果文件不存在，就创建文件；如果文件存在，就会清空文件内容
     if (!file.open(QFile::WriteOnly)) {
-        qDebug() << "文件打开失败" << FILENAME;
+        qDebug() << "文件打开失败" << filename;
 
         // 关闭设备
         avformat_close_input(&ctx);
@@ -79,10 +86,20 @@ void AudioThread::run() {
 
     // 数据包
     AVPacket pkt;
-    // 不断采集数据
-    while (!isInterruptionRequested() && av_read_frame(ctx, &pkt) == 0) {
-        // 将数据写入文件
-        file.write((const char *) pkt.data, pkt.size);
+    while (!isInterruptionRequested()) {
+        // 不断采集数据
+        ret = av_read_frame(ctx, &pkt);
+
+        if (ret == 0) { // 读取成功
+            // 将数据写入文件
+            file.write((const char *) pkt.data, pkt.size);
+        } else {
+            // if (ret == AVERROR(EAGAIN))
+            char errbuf[1024];
+            av_strerror(ret, errbuf, sizeof (errbuf));
+            qDebug() << "av_read_frame error" << errbuf << ret;
+            break;
+        }
     }
 //    while (!_stop && av_read_frame(ctx, &pkt) == 0) {
 //        // 将数据写入文件

StudyNotes/Audio Video/09_record_audio_sub_thread/mac/info.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+        <key>NSMicrophoneUsageDescription</key>
+        <string>申请使用麦克风进行录音</string>
+</dict>
+</plist>

StudyNotes/Audio Video/09_record_audio_sub_thread/mainwindow.cpp

@@ -17,6 +17,12 @@ void MainWindow::on_audioButton_clicked() {
         _audioThread = new AudioThread(this);
         _audioThread->start();
 
+        connect(_audioThread, &AudioThread::finished,
+        [this]() { // 线程结束
+            _audioThread = nullptr;
+            ui->audioButton->setText("开始录音");
+        });
+
         // 设置按钮文字
         ui->audioButton->setText("结束录音");
     } else { // 点击了“结束录音”

StudyNotes/Audio Video/10_sdl_play_pcm/10_sdl_play_pcm.pro

@@ -0,0 +1,46 @@
+QT       += core gui
+
+greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Please consult the documentation of the
+# deprecated API in order to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+    main.cpp \
+    mainwindow.cpp \
+    playthread.cpp
+
+HEADERS += \
+    mainwindow.h \
+    playthread.h
+
+FORMS += \
+    mainwindow.ui
+
+# Default rules for deployment.
+qnx: target.path = /tmp/$${TARGET}/bin
+else: unix:!android: target.path = /opt/$${TARGET}/bin
+!isEmpty(target.path): INSTALLS += target
+
+win32 {
+    SDL_HOME = F:/Dev/SDL2-2.0.14/x86_64-w64-mingw32
+}
+
+mac {
+    SDL_HOME = /usr/local/Cellar/sdl2/2.0.14_1
+}
+
+INCLUDEPATH += $${SDL_HOME}/include
+
+LIBS += -L $${SDL_HOME}/lib \
+        -lSDL2