mlt_example/env.txt at main · binary-pixels/mlt_example · GitHub

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build mlt

pacman -S mingw-w64-ucrt-x86_64-cmake

pacman -S mingw-w64-x86_64-dlfcn

pacman -S mingw-w64-x86_64-SDL2

pacman -S mingw-w64-x86_64-qt5

pacman -S mingw-w64-x86_64-mlt

pacman -S mingw-w64-x86_64-toolchain

pacman -S mingw-w64-x86_64-qt5-multimedia mingw-w64-x86_64-qt5-quickcontrols2

pacman -S mingw-w64-x86_64-ffmpeg


melt -query producers
melt -query consumers

 pacman -S mingw-w64-x86_64-ladspa-sdk

# update
pacman -Syu
pacman -Su

mingw-w64-ucrt-x86_64-gdb
mingw-w64-x86_64-qt5-quick3d
mingw-w64-x86_64-x265

pacman -S mingw-w64-x86_64-libsndfile mingw-w64-x86_64-sox mingw-w64-x86_64-libsamplerate
pacman -S mingw-w64-x86_64-qt6-base mingw-w64-x86_64-qt6-svg
pacman -S mingw-w64-x86_64-mlt mingw-w64-x86_64-libsndfile mingw-w64-x86_64-rubberband
pacman -S mingw-w64-x86_64-SDL2


*** Use ldd to Check Dependencies
*** Use the ldd command to inspect the dependencies of the problematic .dll files:


ldd C:/msys64/mingw64/lib/mlt/libmltplus.dll
ldd C:/msys64/mingw64/lib/mlt/libmltrtaudio.dll
ldd C:/msys64/mingw64/lib/mlt/libmltsdl.dll
This will list all dependencies and indicate any missing libraries.


build shotcut

mkdir build

cd build

cmake -DCMAKE_PREFIX_PATH="C:/msys64/mingw64" -DCMAKE_C_COMPILER="C:/msys64/mingw64/bin/gcc.exe" -DCMAKE_CXX_COMPILER="C:/msys64/mingw64/bin/g++.exe" ..

cmake --build .


C:\msys64\mingw64\bin\g++.exe -std=c++11 -o video_editor video_editor.cpp -ID:\code\main\include\mlt-7 -LD:\code\main\lib -lmlt++-7


export PATH=/mingw64/bin:$PATH

/mingw64/bin/cmake -DCMAKE_PREFIX_PATH=/c/msys64/mingw64 -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++ ..

/mingw64/bin/cmake.exe --build .
windeployqt --qmldir D:/code/editvideo ./editvideo.exe


ldd C:\\msys64\\mingw64\\lib\\mlt\\libmltrtaudio.dll
        ntdll.dll => /c/WINDOWS/SYSTEM32/ntdll.dll (0x7ff85a230000)
        KERNEL32.DLL => /c/WINDOWS/System32/KERNEL32.DLL (0x7ff858670000)
        KERNELBASE.dll => /c/WINDOWS/System32/KERNELBASE.dll (0x7ff8578d0000)
        msvcrt.dll => /c/WINDOWS/System32/msvcrt.dll (0x7ff8585d0000)
        libmltrtaudio.dll => /mingw64/lib/mlt/libmltrtaudio.dll (0x7ff852ab0000)
        libgcc_s_seh-1.dll => /mingw64/bin/libgcc_s_seh-1.dll (0x7ff852a80000)
        libwinpthread-1.dll => /mingw64/bin/libwinpthread-1.dll (0x7ff852a10000)
        libstdc++-6.dll => /mingw64/bin/libstdc++-6.dll (0x7ff829ed0000)
        libmlt-7.dll => /mingw64/bin/libmlt-7.dll (0x7ff83c3a0000)
        librtaudio-7.dll => not found

pacman -S mingw-w64-x86_64-rtaudio


第一步： 环境变量导入
export PATH=/mingw64/bin:$PATH

export MLT_DATA=C:\\msys64\\mingw64\\share\\mlt
export MLT_REPOSITORY=C:\\msys64\\mingw64\\lib\\mlt
export DYLD_LIBRARY_PATH="C:\\msys64\\mingw64\\lib:$DYLD_LIBRARY_PATH"

第二步： 编译
// g++ video_processing.cpp -o video_processing -IC:/msys64/mingw64/include/mlt-7 -LC:/msys64/mingw64/lib/mlt -lmlt++-7 -lmlt-7 -std=c++11