Openfx v3 by bmatherly · Pull Request #1204 · mltframework/mlt

bmatherly · 2026-02-23T04:02:02Z

Work on openfx module continued from this PR: #1186

… ends with other postfix

…ths from environment variable

…d widget '2dsize'

… implementation

- handle the Microsoft Visual C++ compiler in module CMakeLists.txt - Change every copyright to the year 2025 - Use C99 variables in the for loop initializer declare style - Clang format and include <stdbool.h> explicitly - specify which versions of OpenFX supported - mention OpenFX header files URL in mlt_openfx.c - using mlt_image and its functions in src/modules/openfx/filter_openfx.c

…sts.txt

…t frame to the suitable format

…escribe in context action required by some plugins such as net.sf.openfx.Mirror to function

…atherly

…atherly

…ion flow

I found this with the GoPro Reframe plugin, which throws C++ exception when the host does not set all of its properties.

ddennedy · 2026-04-01T17:55:41Z

I just tested the free GoPro 360 video reframe plugin, and its presence is crashing melt.

I found a fix for this (some missing host properties).

ddennedy · 2026-04-03T23:16:33Z

I am done with making changes on this branch. @bmatherly please review my recent changes, probably easiest by commit before I merge.

bmatherly · 2026-04-04T21:01:55Z

@ddennedy thanks for adding the service lock. This all look good to me.

ddennedy · 2026-04-04T21:05:56Z

@bmatherly Did you have a change to test my changes with the plugins you have? I do not have many, focusing on Windows and macOS testing with some proprietary ones.

bmatherly · 2026-04-04T21:38:08Z

I had been testing with Natron plugins on Linux - and this latest version is working well. Let's get this merged!

luzpaz · 2026-04-05T11:12:41Z

Note: https://mltframework.org/changes/todo/ shows OpenFX support in the "Old Roadmap" section. Worth updating ?

vpinon · 2026-04-06T10:13:52Z

Congratulations that's a great achievement !
It was in minds since many years, it is very satisfying to see this happen…
Thanks again to all contributors !

smdstudios · 2026-04-07T16:16:38Z

Awesome! Been looking forward to this one.

This may not be the right place for me to enquire, do you think we'll eventually see a Windows-to-Linux OFX wrapper, similar to how DAWs on Linux have wrappers to let you use Windows VSTs? Wine can handle OFX hosts fine, which may be something to consider for a wrapper, though I admit I should probably take this discussion to individual NLEs based on MLT.

jlskuz · 2026-06-04T11:32:11Z

@bmatherly @ddennedy the news of Shotcut/MLT supporting OpenFX now was discussed in the ASWF Slack room for OpenFX recently and people expressed interest to see you ("the Shotcut devs") at the OpenFX TSC meeting. Since I believe you are not a member of the Slack chat, I wanted to make you aware of that invetation.

frdbr · 2026-06-05T00:29:22Z

@bmatherly @ddennedy the news of Shotcut/MLT supporting OpenFX now was discussed in the ASWF Slack room for OpenFX recently and people expressed interest to see you ("the Shotcut devs") at the OpenFX TSC meeting. Since I believe you are not a member of the Slack chat, I wanted to make you aware of that invetation.

Pinging also @joinlaw

ddennedy · 2026-06-05T00:36:41Z

Sure, I am open to that. I should probably join the mailing list at https://lists.aswf.io/g/openfx-discussion, but not sure I want to do Slack as well. I think there are questions we have.

bmatherly · 2026-06-05T02:23:15Z

I am also interested.

joinlaw · 2026-06-05T18:37:11Z

@bmatherly @ddennedy the news of Shotcut/MLT supporting OpenFX now was discussed in the ASWF Slack room for OpenFX recently and people expressed interest to see you ("the Shotcut devs") at the OpenFX TSC meeting. Since I believe you are not a member of the Slack chat, I wanted to make you aware of that invetation.

Pinging also @joinlaw

Sure, I am open to that. I should probably join the mailing list at https://lists.aswf.io/g/openfx-discussion, but not sure I want to do Slack as well. I think there are questions we have.

Good. I joined the mailing list.

jlskuz · 2026-06-07T09:41:37Z

@ddennedy @bmatherly @joinlaw Yeah, I think the mailing list is sufficent to get reminders for the TSC meeting.

mr.fantastic and others added 30 commits February 22, 2026 15:13

Initial work on OpenFX module support

f4ca385

Making yml files explicit in openfx module CMakeLists

a13af15

clang-format openfx module source files

6915f71

OpenFX module: adding TODO to incompleted code

7feec02

reordering functions in src/modules/openfx/mlt_openfx.c|h

a2473bd

openfx module: avoid reading directories that contain .ofx.bundle but…

4118811

… ends with other postfix

openfx module: using typedefs for shared object symbols

42c173e

openfx module: replace strtok with strtok_r to parse openfx plugin pa…

4a24c27

…ths from environment variable

closedir after parsing openfx plugins

96e2c59

openfx module support more parameters types

6acbf6f

openfx module fix plugin parameter not passed correctly form the host

f1fa437

openfx module adding support for color parameters

a180f22

openfx module: add support for double 2d point

5dd30f1

filter_openfx.c set default value for parameter with type 'double' an…

308c2f3

…d widget '2dsize'

openfx module: progress on kOfxImageEffectActionGetRegionOfDefinition…

81190a1

… implementation

openfx module: avoid adding unsupported plugins as filters

b678494

Fix openfx module build issue with mingw/msys2

d9f06be

Make sure that OpenFX module have the imported target glib in CMakeLi…

144ed62

…sts.txt

Turn off openfx module on msvc CI/CD build

a2e23aa

openfx module: when plugin support RGBA64 or RGBA color format conver…

a5e3923

…t frame to the suitable format

clang-format src/modules/openfx/filter_openfx.c

7ab8bb2

openfx module extract plugin description into mlt filter metadata

b003c7d

clang-format src/modules/openfx/filter_openfx.c

fee354f

OpenFX module: setting some standard Source/Output properties after d…

02e052e

…escribe in context action required by some plugins such as net.sf.openfx.Mirror to function

openfx module: Quiet warnings from plugins that use OCIO patch by @bm…

048578a

…atherly

openfx module: applying @bmatherly suggested changes in plugin detect…

93cae7c

…ion flow

Move third-party openfx files into a subdirector

ceecdad

Update copyright dates in openfx module

ef9ee93

Update comment styles and consistency

160106a

ddennedy requested changes Apr 1, 2026

View reviewed changes

ddennedy added 3 commits April 1, 2026 10:08

Search default paths for OFX plugins

5a3f9bd

Alphabetize

3168320

Fix some plugins crash

9fcbf24

I found this with the GoPro Reframe plugin, which throws C++ exception when the host does not set all of its properties.

ddennedy reviewed Apr 1, 2026

View reviewed changes

Comment thread src/modules/openfx/mlt_openfx.c Outdated

ddennedy added 3 commits April 1, 2026 12:31

Fix metadata

128bb38

Fix compile error

5595012

Fix compile warning, more host properties

aa18456

bmatherly commented Apr 2, 2026

View reviewed changes

Comment thread src/modules/openfx/mlt_openfx.c Outdated

ddennedy added 3 commits April 1, 2026 17:53

Sync openfx filter to metadata changes

a9ed606

Cleanup stubbed functions

5c897c1

Extend service lock

64166b6

ddennedy added this to the v7.38.0 milestone Apr 3, 2026

ddennedy approved these changes Apr 3, 2026

View reviewed changes

ddennedy merged commit fa0622a into master Apr 5, 2026
25 checks passed

ddennedy deleted the openfx branch April 5, 2026 01:47

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