mltframework/mlt

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MLT Multimedia Framework

Stars: 1.9k
Forks: 387
Open beginner issues: 0
Indexed issues: 43
Avg merge: 17h 28m
Merged PRs (30d): 8

Dominant language: C
License: LGPL-2.1
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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43 open issues indexed

Segmentation fault during render from Kdenlive Open

confirmed crash workaround

Difficulty 5/5 Over a week Newbie friendliness 35/100

mltframework/mlt#1200 · 6 comments · 1 reaction · Opened Jan 29, 2026
Audio muted when doing stutter loops Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#1168 · 3 comments · Opened Nov 1, 2025
Segmentation fault with motion tracker Open

pending

Difficulty 4/5 3-5 days Newbie friendliness 28/100

mltframework/mlt#1157 · 7 comments · Opened Sep 20, 2025
There may be an error when disconnecting a filter service from the field Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mltframework/mlt#1058 · 1 comment · Opened Dec 11, 2024
Filter "affine" + Transition "luma" Out of the wrong picture, bug Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#1056 · 1 comment · Opened Dec 4, 2024
Audio not synchronized Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#984 · Opened May 14, 2024
Discovered a bug regarding image size scaling and rotation Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#970 · Opened Jan 19, 2024
Composite + Colour + Thread will render error Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#920 · Opened May 26, 2023
Remote URLs not working for jpeg files Open

workaround

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mltframework/mlt#829 · 3 comments · Opened Oct 5, 2022
Build failure for mingw 32 bit Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#809 · Opened Jun 30, 2022
avformat: lowres does not work Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#795 · 3 comments · 1 reaction · Opened May 25, 2022
Melt crashes at the end of the rendering Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#786 · 17 comments · Opened Apr 8, 2022
melt playing window stopped refresh after resized Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#783 · 2 comments · Opened Mar 25, 2022
Timewarp Producer Issue: Ignores framerate settings in mlt_profile, reports wrong frame on callback. Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#769 · 8 comments · Opened Feb 10, 2022
Memory leaks in melt CLI with and without input Open

confirmed

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#745 · 4 comments · 1 reaction · Opened Oct 28, 2021
Library FFTW's fftw_plan_dft_r2c_1d is not thread safe. Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

mltframework/mlt#743 · 1 comment · Opened Oct 26, 2021
Color shift after first frame of output when using two composite transitions Open

confirmed workaround

Difficulty 4/5 3-5 days Newbie friendliness 28/100

mltframework/mlt#623 · 4 comments · Opened Nov 25, 2020
missing video in transition with sdl2 viewer Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mltframework/mlt#607 · Opened Sep 7, 2020
Noto color emoji font not rendering Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#596 · 2 comments · Opened Jul 17, 2020
Crash using the tremolo audio effect Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#595 · 8 comments · Opened Jul 14, 2020
Crash in qtblend filter Open

mltframework/mlt#593 · 4 comments · 1 assignee · Opened Jul 6, 2020
Rendering artifacts when using transitions with Movit Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#578 · 5 comments · Opened Jun 3, 2020
kdenlive: filter_movit_convert.cpp:204: void build_fingerprint(mlt_service, mlt_frame, std::string*): Assertion `effect' failed. Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mltframework/mlt#576 · 18 comments · Opened Jun 2, 2020
transition tag causes x264 field order confusion Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#575 · Opened Jun 1, 2020
Audio fade-in always late by one frame Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#570 · 4 comments · Opened May 25, 2020
portability issue: locale misuse on OpenBSD Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#568 · 3 comments · Opened May 22, 2020
Feezing and frame drops on files from action camera Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mltframework/mlt#487 · 1 comment · Opened Oct 24, 2019
affine filter cuts off the bottom 1px of the video Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#471 · 2 comments · Opened Aug 6, 2019
XML consumer not serializing full multitrack graph Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mltframework/mlt#464 · 10 comments · Opened Jul 4, 2019
SIGABRT: thread lock issue in producer_avformat Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#444 · 3 comments · Opened May 19, 2019
[TSAN] Data race steaming from mlt_profile_from_producer Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#433 · Opened Apr 25, 2019
mlt_playlist fixes Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mltframework/mlt#396 · 5 comments · Opened Jan 2, 2019
mlt_service_get_frame using movit filters may result in opengl operations w/o valid context Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mltframework/mlt#390 · 4 comments · Opened Dec 17, 2018
Self-referenced XML handled poorly Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#276 · Opened Dec 19, 2017
About the release of memory after the closed project Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#271 · 13 comments · Opened Nov 23, 2017
qtext/pango + composite transition alignment issue Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mltframework/mlt#238 · 2 comments · Opened Jun 21, 2017
Producer creation using xml is not thread-safe and can lead to double free Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mltframework/mlt#212 · 8 comments · Opened Mar 6, 2017
Most basic example is full of memory leaks Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mltframework/mlt#193 · 16 comments · Opened Feb 14, 2017
Seeking DVB-S2 recording backwards frame-by-frame displays wrong frames Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#154 · 1 comment · Opened Nov 26, 2016
Problem with consumer multi Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#131 · Opened Oct 11, 2016
crash and bad frames generated Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#101 · 5 comments · Opened Mar 3, 2016
Decklink prefill options not work and buffer overrun after 24-25 hours. Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mltframework/mlt#98 · 1 comment · Opened Feb 11, 2016
bogus warning about "baseline" mis-parsed creating H.264 Open

confirmed

Difficulty 5/5 Over a week Newbie friendliness 20/100

mltframework/mlt#58 · Opened Oct 8, 2014

mltframework/mlt

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