QT中使用ffmpeg（一）_qt ffmpeg

1.下载ffmpeg的dev和share包，解压
2.建立qt工程将dev中的包中的include文件夹和lib文件夹放在ffmpegsdk文件夹中放在工程目录下

 
3.在.pro工程配置文件中增加ffmpeg的include文件和lib文件

TEMPLATE = app
CONFIG += console c++11
CONFIG -= app_bundle
CONFIG -= qt
 
SOURCES += \
        main.cpp
 
INCLUDEPATH +=$$PWD/ffmpegsdk/include
 
LIBS += $$PWD/ffmpegsdk/lib/avdevice.lib \
        $$PWD/ffmpegsdk/lib/avfilter.lib\
        $$PWD/ffmpegsdk/lib/avformat.lib\
        $$PWD/ffmpegsdk/lib/avutil.lib\
        $$PWD/ffmpegsdk/lib/avcodec.lib\
        $$PWD/ffmpegsdk/lib/postproc.lib\
        $$PWD/ffmpegsdk/lib/swresample.lib\
        $$PWD/ffmpegsdk/lib/swscale.lib
 

4.在.cpp文件中include需要使用的.h文件
  extern "C"
  {
    #include <ffmpegsdk/include/libavcodec/avcodec.h>
    #include <ffmpegsdk/include/libavformat/avformat.h>
    #include <ffmpegsdk/include/libavdevice/avdevice.h>
    #include <ffmpegsdk/include/libswscale/swscale.h>
   }
5.在main函数中调用ffmpeg函数尝试ffmpeg是否可用
  int main()
  {
    cout << "Hello FFmpeg!" << endl;
    av_register_all();
    unsigned version = avcodec_version();
    cout << "version is:" << version;
    return 0;
   }
6.编译工程，将下载的ffmpeg_share包里的dll文件拷贝到编译生成的可执行文件的同级目录下

7.运行程序，成功

 整体代码

 main.cpp

#include <iostream>
using namespace std;
extern "C"
{
  #include <ffmpegsdk/include/libavcodec/avcodec.h>
  #include <ffmpegsdk/include/libavformat/avformat.h>
  #include <ffmpegsdk/include/libavdevice/avdevice.h>
  #include <ffmpegsdk/include/libswscale/swscale.h>
}
 
int main()
{
    cout << "Hello FFmpeg!" << endl;
    av_register_all();
    unsigned version = avcodec_version();
    cout << "version is:" << version;
    return 0;
}

发现大佬文章学习总结记录下~