Created attachment 180020 [details] Trasncoding bug demo SUMMARY There is a transcoding issue (which by the way didn't occured before in stable version 24.12.3) but in nightly build version 25.07.70) STEPS TO REPRODUCE 1. Create a new project 2. Add a video to project (that is not edit friendly format) 3. Let it transcode video to edit friendly format OBSERVED RESULT Gives an error Detailed log Stream map " matches no streams. To ignore this, add a trailing '?' to the map. Failed to set value '0:a' for option 'map': Invalid argument Error parsing options for output file "path/filename.mp4" (refer attachment please) Error opening output files: Invalid argument. EXPECTED RESULT Transcode video to edit friendly format. SOFTWARE/OS VERSIONS kdenlive-master-9999-windows-gcc-x86_64 Kdenlive: 25.07.70 MLT: 7.30.0 FFmpeg KDE Frameworks: 6.12.0 Qt: Using 6.8.1 and built against 6.8.1 Windows 10 Version 22H2 Build ABI: x86_64-little_endian-llp64 Kernel: winnt 10.0.19045 ADDITIONAL INFORMATION Already mentioned but informing again, this didn't occured before in stable version 24.12.3 Also error occurs in some type of video files (only tested in mp4 types), didn't know what kind of files triggered the error.
Git commit efd0219cd3deeec1ed83b0eaeb7a198c26bff490 by Jean-Baptiste Mardelle. Committed on 10/04/2025 at 08:53. Pushed by mardelle into branch 'release/25.04'. Don't enforce mapping audio or video streams if we anyways don't want them M +7 -3 src/jobs/transcodetask.cpp https://invent.kde.org/multimedia/kdenlive/-/commit/efd0219cd3deeec1ed83b0eaeb7a198c26bff490
Can you test the nightly appimage and let us know if it works?
SUMMARY Tested with latest build, still not fixed. SOFTWARE/OS VERSIONS kdenlive-master-10035-windows-gcc-x86_64 Kdenlive: 25.07.70 MLT: 7.30.0 FFmpeg KDE Frameworks: 6.12.0 Qt: Using 6.8.1 and built against 6.8.1 Windows 10 Version 22H2 Build ABI: x86_64-little_endian-llp64 Kernel: winnt 10.0.19045
Created attachment 180307 [details] Video file sample Video file that is causing the transcoding error.
I can't reproduce on kdenlive master.Which version are you using?
(In reply to farid from comment #5) > I can't reproduce on kdenlive master.Which version are you using? kdenlive-master-10035-windows-gcc-x86_64 Kdenlive: 25.07.70
🐛🧹 ⚠️ This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information, then set the bug status to REPORTED. If there is no change for at least 30 days, it will be automatically closed as RESOLVED WORKSFORME. For more information about our bug triaging procedures, please read https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging. Thank you for helping us make KDE software even better for everyone!
🐛🧹 This bug has been in NEEDSINFO status with no change for at least 30 days. Closing as RESOLVED WORKSFORME.