CODEWITHSUNDEEP
c++cffmpeglibavcodecpkg-config
Project PowerPoint
Project PowerPoint

Reputation: 1

How can I install FFmpeg so that pkg-config can find it?

I want to use the ffmpeg libraries in my program. These are libavformat and libavcodec. To link them, I'm trying to use pkg-config.

I cannot get pkg-config to find these libraries.

When I run pkg-config --modversion libavcodec I get Can't find libavcodec.pc in any of C:/Strawberry/c/lib/pkgconfig

Which should mean that I don't have ffmpeg installed.

However, I did install ffmpeg. I'm using Windows so I installed ffmpeg with the Chocolatey package manager. This seems to have only given me the ffmpeg program and not its libraries.

On MacOS simply using homebrew to install ffmpeg installs all the right files.

Is there a difference on Windows? How can I get the dev package?

SOME MORE INFO:

I'm compiling this using CMake-js as a node addon. This is my CMakeLists.txt file:

cmake_minimum_required(VERSION 3.9)
project(FFMpeg)

find_package(PkgConfig REQUIRED)
pkg_check_modules(AVCODEC    REQUIRED    IMPORTED_TARGET libavcodec)
pkg_check_modules(AVFILTER   REQUIRED    IMPORTED_TARGET libavformat)
pkg_check_modules(AVDEVICE   REQUIRED    IMPORTED_TARGET libavdevice)
pkg_check_modules(AVUTIL     REQUIRED    IMPORTED_TARGET libavutil)
pkg_check_modules(SWRESAMPLE REQUIRED    IMPORTED_TARGET libswresample)
pkg_check_modules(SWSCALE    REQUIRED    IMPORTED_TARGET libswscale)

add_library(FFMpeg INTERFACE IMPORTED GLOBAL)

target_include_directories(
    FFmpeg INTERFACE
    ${AVCODEC_INCLUDE_DIRS}
    ${AVFILTER_INCLUDE_DIRS}
    ${AVDEVICE_INCLUDE_DIRS}
    ${AVUTIL_INCLUDE_DIRS}
    ${SWRESAMPLE_INCLUDE_DIRS}
    ${SWSCALE_INCLUDE_DIRS}
)

target_link_options(
    FFmpeg INTERFACE
    ${AVCODEC_LDFLAGS}
    ${AVFILTER_LDFLAGS}
    ${AVDEVICE_LDFLAGS}
    ${AVUTIL_LDFLAGS}
    ${SWRESAMPLE_LDFLAGS}
    ${SWSCALE_LDFLAGS}

I also found this in the output, which might explain why pkg-config is looking in C:\Strawberry?

-- Found PkgConfig: C:/Strawberry/perl/bin/pkg-config.bat (found version "0.26")
-- Checking for module 'libavcodec'
--   Can't find libavcodec.pc in any of C:/Strawberry/c/lib/pkgconfig

Upvotes: 0

Views: 971

Answers (2)

Mohsen
Mohsen

Reputation: 1

Cmake looks for those *.pc files like libavcodec.pc in C:/Strawberry/c/lib/pkgconfig/. You need to specify this path before any cmake or any autoconfig commands into PKG_CONFIG_PATH variable when building any of those libraries in pkg_check_modules arguments.

You may do it like: PKG_CONFIG_PATH=C:/Strawberry/c/lib/pkgconfig cmake ..

Upvotes: 0

Project PowerPoint
Project PowerPoint

Reputation: 1

For anyone with the same problem:

I looked at the folder structure of the linux and macos packages, and they include all the libraries. The Windows version that is included in the main download or any package manager does not contain these libraries.

If you're on Windows you will want a build from here (BtbN FFmpeg Builds) and get the full version.

Now all I have to do is get it to work with pkg-config.

Upvotes: 0

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