mac qt 集成 ffmpeg 4.4.6

操作系统：macOS 15.6

首先下载 ffmpeg 4.4.6 源码

编译

./configure --prefix=/Users/mac/ffmpeg-4.4.6 --disable-static --enable-shared --enable-libfdk-aac --enable-debug=3 --enable-libx264 --enable-filter=delogo --enable-gpl --enable-nonfree --enable-libopus --enable-avresample


make -j 4
make install

新建 qt 工程

修改qt 项目的 hello_qt_ffmpeg.pro 文件

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++17

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

INCLUDEPATH += /Users/mac/ffmpeg-4.4.6/include
LIBS += -L/Users/mac/ffmpeg-4.4.6/lib \
        -lavcodec \
        -lavdevice \
        -lavfilter \
        -lavformat \
        -lavutil \
        -lpostproc \
        -lswscale \
        -lswresample \
        -lavresample


SOURCES += \
    main.cpp \
    mainwindow.cpp

HEADERS += \
    mainwindow.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

修改 main.cpp

#include "mainwindow.h"

#include <QApplication>
#include <QDebug>

extern "C" {
#include <libavcodec/avcodec.h>
}

int main(int argc, char *argv[])
{

    // 打印版本号
    qDebug() << av_version_info();

    QApplication a(argc, argv);
    MainWindow w;
    w.show();
    return a.exec();
}

附 mj 老师的 ffmpeg 编译选项截图

参考了 mj 老师的额博客 www.cnblogs.com/mjios/p/144…