VS2019 FFplay

FFplay built with Visual Studio 2019

Introduction

This is a VS2019 C++ project of ffplay. But according to the complicated issues with licenses and copyrights, I didn't include any FFmpeg and SDL2 lib files. I only uploaded those source files I modified (Please follow their LGPL and GPL license when you use them). But you could add them by yourself according to the instructions below.

Versions

Source Files: FFmpeg-n4.3.2
FFmpeg Windows build: ffmpeg-4.3.2-2021-02-27-full_build-shared
SDL2 Windows build: SDL2-devel-2.0.14-VC
Visual Studio: 2019

Platform

Windows 10 x64 (no x86 support)

Instructions

Configure FFmpeg source files:
1. Download FFmpeg source files from https://github.com/FFmpeg/FFmpeg/releases
2. Download MSYS2 from https://www.msys2.org/
3. Install MSYS2.
4. Install necessary packages: Run "MSYS2 MinGW 64-bit" from Start menu and input the follwing lines:
```
pacman -Syu
pacman -S make pkg-config diffutils yasm
pacman -S mingw-w64-x86_64-nasm mingw-w64-x86_64-gcc mingw-w64-x86_64-SDL2
```
5. Make MSYS2 use VS build tools: Create a batch file called "msys_vs2019.bat", and fill in the following lines:
```
set MSYS2_PATH_TYPE=inherit
call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvars64.bat"
msys2_shell.cmd -mingw64
```
  Rename "C:\msys2\usr\bin\link.exe" to "C:\msys2\usr\bin\link.exe.bak".
6. Configure FFplay: Unpack FFmpeg source files anywhere you like. And in "MSYS2 MinGW 64-bit" shell, "cd" into the source files folder. Input the fowllowing lines:
```
./configure --enable-shared --prefix=. --toolchain=msvc --arch=x86_64 --target-os=win64
```
Create the "FFplay" C++ project:
1. Open Visual Studio 2019 and create an empty C++ project called "FFplay".
2. Download FFmpeg shared buid from https://www.gyan.dev/ffmpeg/builds/. Make sure it's the same version with the source files you used above.
3. From the FFmpeg build ".zip" file, unpack "include" and "lib" folder into our project folder. And unpack all the "dll" files in the "bin" folder to "x64/Debug" folder in our project folder.
4. Download SDL2 developer build from https://www.libsdl.org/download-2.0.php. Make sure it's windows vc developer version.
5. From the SDL2 build ".zip" file, unpack all the files in "include" folder to "include/SDL2" folder in our project folder. And unpack all the "lib" files from "lib/x64" folder to "lib" folder in our project folder. And unpack the "dll" file from "lib/x64" folder to "x64/Debug" folder in our project folder.
6. Copy some files from source files:
  - Copy the "config.h" file from FFmpeg source file to our project folder.
  - Copy the "ffplay.c", "cmdutils.h", "cmdutils.c" from "fftools" folder in the source files to our project foler.
  - Copy all the ".h" files from the "compact" folder to "include/compact" folder in our project folder.
  - Copy all the ".h" files from the "libavutil" folder to "include/libavutil" folder in our project folder, but don't override those files already exists.
Modify our "FFplay" project:
1. Right click our project "FFplay" and click "Add" -> "Existing item...". And select all 4 files we copied ("config.h", "ffplay.c", "cmdutils.h", "cmdutils.c").
2. Set project property:
  - "Configuration": Debug; "Platform": x64
  - "C/C++" -> "General" -> "Additional Include Directories":
```
$(ProjectDir)include;%(AdditionalIncludeDirectories)
```
  - "C/C++" -> "General" -> "SDL checks": No (/sdl-)
  - "Linker" -> "General" -> "Additional Library Directories":
```
$(ProjectDir)lib;%(AdditionalLibraryDirectories)
```
  - "Linker" -> "General" -> "Additional Dependencies":
```
avcodec.lib;avdevice.lib;avfilter.lib;avformat.lib;avutil.lib;postproc.lib;SDL2.lib;SDL2main.lib;SDL2test.lib;swresample.lib;swscale.lib;%(AdditionalDependencies)
```
3. Tweak source code:
  - "cmdutils.c": Comment out all the lines related with "avresample". This function is deprecated and not enabled in the FFmpeg lib we use. Basically everything marked as error.
  - "ffplay.c": Replace #include <SDL.h> with #include "SDL2/SDL.h". And replace #include <SDL_thread.h> with #include "SDL2/SDL_thread.h".
Debug our "FFplay" project:
- Now there should be no error in our project.
- To make it play a video when we click "Local Windows Debugger", we need to add an argument to our debug command. Project Property: "Configuration Properties" -> "Debugging" -> "Command Arguments": $(Your_Video_File_Path)

Reference

License

Everything I created would follow MIT. But everything related with FFmpeg and SDL2, please follow their licenses and copyrights.