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虛擬機版本：VMware 14
Linux版本：Ubuntu 16.04
QT版本：QT-5.12

1 編譯FFmpeg

FFmpeg版本：4.2.1

2 安裝qt-5.12.10

https://blog.csdn.net/lzp_k2/article/details/82662112
下載地址：https://download.qt.io/archive/qt/
下載地址：https://download.qt.io/archive/qt/5.12/5.12.10/

如果報錯

ubuntu安裝qt5 Could not load the Qt platform plugin "xcb" in "" even though it was found.
https://blog.csdn.net/u012768805/article/details/98756925

需要安裝：

sudo apt install --reinstall libxcb-xinerama0

Ubuntu16.04打開Qt顯示/home/user/.config/QtProject/qtcreator/qtversion.xml :Permission denied

權(quán)限不夠所導致，執(zhí)?命令 sudo chown -R user:user ~/.config/ 即可解決。

默認需要使?sudo權(quán)限啟動

不是sudo權(quán)限也能啟動則需要修改權(quán)限

語法：

sudo chown -R username:username ~/.config/

?如我的ubuntu：
pro?件寫法
main.c

sudo chown -R lqf:lqf ~/.config/

3 QT使?FFmpeg

linux_1-ffmpeg

TEMPLATE = app
CONFIG += console
CONFIG -= app_bundle
CONFIG -= qt

SOURCES += \
          main.c
INCLUDEPATH += /home/lqf/ffmpeg_build/include

LIBS += /home/lqf/ffmpeg_build/lib/libavcodec.a \
        /home/lqf/ffmpeg_build/lib/libavdevice.a \
        /home/lqf/ffmpeg_build/lib/libavfilter.a \
        /home/lqf/ffmpeg_build/lib/libavformat.a \
        /home/lqf/ffmpeg_build/lib/libavutil.a \
        /home/lqf/ffmpeg_build/lib/libswresample.a \
        /home/lqf/ffmpeg_build/lib/libswscale.a

#include <stdio.h>
// 包含ffmpeg頭?件
#include "libavutil/avutil.h"

int main()
{
   printf("Hello FFMPEG, version is %s\n", av_version_info());
   return 0;
}

linux_2-sdl

下載地址：https://www.libsdl.org/download-2.0.php

1. 下載SDL源碼庫，SDL2-2.0.10.tar.gz
2. 解壓，然后依次執(zhí)?命令

./autogen.sh
./configure --prefix=/home/lqf/ffmpeg_build --bindir=/home/lqf/bin
make
sudo make install

linux_2-sdl-basic項?
linux_2-sdl-yuv

linux_3-ffmpeg-extract-aac

重點看
?程的pro?件