Add meson build system by moi15moi · Pull Request #471 · FFMS/ffms2

moi15moi · 2026-01-29T02:55:11Z

This is a second attempt to add meson build system support (#338) since I believe meson is now a bit more mature. It is still pretty new compare to autotools, but as some benefits (ex: easy cross-compilation, IDE support, support MSVC out of the box).

I did it just for fun, but since it allow to build the unit tests with MSVC, I thought it might be a good idea to share it.

I also tested all the possibilities (ffmpeg->shared + ffms2->shared build, ffmpeg->static+ ffms2->shared build, etc...) in this PR to be sure to cover as many use case as possible.

The second commit is a "bonus", but can be useful since, in the last release, I believe you forgot to include the x86 build (see issue #470). If you want, I can add a arm64 build since windows arm is slowly getting a bit more common.

Also, if you want me to add renovate to automatically update subprojects/AviSynth+.wrap version, tell me.

dwbuiten · 2026-04-05T15:08:31Z

If this covers 100% of the functionality of configure, I would love to just nuke autoconf and use only meson.

moi15moi · 2026-04-06T20:34:07Z

If this covers 100% of the functionality of configure, I would love to just nuke autoconf and use only meson.

Yes, it does.
I removed autotools and msbuild support.

I also decided to add a small test on top of introducing meson.
The test assure that our header are always compatible with c99 (to avoid issue like this one: #472 (comment))

PS: Note that you can also use muon to build the project, but you need at least to use a version that include this commit due to a bug.

moi15moi · 2026-04-09T14:07:02Z

I just fixed the conflict due to 0fa01d0

…lease The workflow "Release Windows artifacts" will be runned when we create a new github release. It will automatically create the .7z file containing the x86 + x64 build and add it to the release.

We cannot use ffmpeg oackage available on cygwin repo because the build doesn't contain a HEVC decoder. See: https://cygwin.com/pipermail/cygwin/2026-March/259560.html

…vailable to build the project This allow to fix these errors when compiling on cygwin: ``` ../src/vapoursynth/VSHelper4.h:76:9: error: there are no arguments to 'posix_memalign' that depend on a template parameter, so a declaration of 'posix_memalign' must be available [-fpermissive] 76 | if (posix_memalign(&tmp, alignment, size)) | ^~~~~~~~~~~~~~ ../src/index/ffmsindex.cpp:122:20: error: 'strdup' was not declared in this scope; did you mean 'strcmp'? 122 | pair.Key = strdup(en->key); | ^~~~~~ | strcmp ```

The goal is to catch issue like this one: FFMS#472 (comment)

Fix these errors reported by clang: ``` FAILED: [code=1] test/c99_header.p/test.c.o clang -Itest/c99_header.p -Itest -I../test -I../include -fdiagnostics-color=always -DNDEBUG -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Wpedantic -Werror -std=c99 -O3 -pedantic -MD -MQ test/c99_header.p/test.c.o -MF test/c99_header.p/test.c.o.d -o test/c99_header.p/test.c.o -c ../test/test.c In file included from ../test/test.c:2: ../include/ffms.h:436:30: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes] 436 | FFMS_API(int) FFMS_GetVersion(); | ^ | void ../include/ffms.h:437:31: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes] 437 | FFMS_API(int) FFMS_GetLogLevel(); | ^ | void ```

myrsloik · 2026-04-25T15:16:57Z

Don't remove the the msvc build. It's very useful for testing and debugging and people who want to contribute easily.

Ichunjo · 2026-04-25T15:38:12Z

Maybe I'm missing something but what's the point of adding cygwin?
Also, on Windows, why not also using clang and clang++?

Ichunjo · 2026-04-25T15:41:43Z

+      - name: Setup MSYS2 (MINGW64)
+        if: matrix.windows_env == 'msys2'
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: MINGW64
+          install: >-
+            mingw-w64-x86_64-ca-certificates
+            mingw-w64-x86_64-ffmpeg
+            mingw-w64-x86_64-meson
+            mingw-w64-x86_64-toolchain


MINGW64 is deprecated. At least, it should be UCRT64 but using CLANG64 is probably the way to go if that works fine.

moi15moi · 2026-04-25T18:27:25Z

Don't remove the the msvc build. It's very useful for testing and debugging and people who want to contribute easily.

I don't use visual studio, but the option --backend vs doesn't work well for you?

moi15moi · 2026-04-25T18:29:01Z

Maybe I'm missing something but what's the point of adding cygwin?

Simply, to be sure we still support this platform.

Also, on Windows, why not also using clang and clang++?

Because we don't use it in the master branch.

Since 2026-03-15, MINGW64 is deprecated: https://www.msys2.org/news/#2026-03-15-deprecating-the-mingw64-environment

Ichunjo · 2026-04-25T18:57:01Z

Maybe I'm missing something but what's the point of adding cygwin?

Simply, to be sure we still support this platform.

What I was implying is: does it still make sense to support this platform?

Also, on Windows, why not also using clang and clang++?

Because we don't use it in the master branch.

Well, maybe it's time to change!

moi15moi force-pushed the Add-meson branch 2 times, most recently from 100349f to 8dcda06 Compare February 2, 2026 01:56

arch1t3cht reviewed Apr 5, 2026

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Comment thread meson.build Outdated

moi15moi force-pushed the Add-meson branch 4 times, most recently from 3794c8f to 675daae Compare April 6, 2026 20:32

moi15moi force-pushed the Add-meson branch 2 times, most recently from 084a03d to 605ed85 Compare April 9, 2026 14:03

moi15moi commented Apr 10, 2026

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Comment thread meson.build

Comment thread test/meson.build Outdated

moi15moi added 8 commits April 18, 2026 14:34

Add meson support

073a450

When publishing a new release, build the project and add it to the re…

477894c

…lease The workflow "Release Windows artifacts" will be runned when we create a new github release. It will automatically create the .7z file containing the x86 + x64 build and add it to the release.

[ci-meson] Add Cygwin

305be5e

We cannot use ffmpeg oackage available on cygwin repo because the build doesn't contain a HEVC decoder. See: https://cygwin.com/pipermail/cygwin/2026-March/259560.html

[AviSynth+.wrap] Add small meson.build to replace cmake

083247d

Remove autotools and MSBuild support

7f0f80d

Add a test to verify that the header are indeed c99

69f6113

The goal is to catch issue like this one: FFMS#472 (comment)

moi15moi force-pushed the Add-meson branch from 605ed85 to fef4ebf Compare April 18, 2026 18:35

Ichunjo reviewed Apr 25, 2026

View reviewed changes

[CI] Use UCRT64 instead of MINGW64

841b72c

Since 2026-03-15, MINGW64 is deprecated: https://www.msys2.org/news/#2026-03-15-deprecating-the-mingw64-environment

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Add meson build system#471

Add meson build system#471
moi15moi wants to merge 9 commits intoFFMS:masterfrom
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