Kdenlive 23.04.2 rendering hangs in the middle of process (Windows 10 portable version)

Help
1

I have a project with a bunch of higher-than-normal-speed video parts (500-2000x). Trying to render to x264/AAC.
The log file is getting closer to 1 Gb with the below content:

Started render process: D:/Files/SW/Open Sourse/Portable/kdenlive-23.04.0a_standalone/bin/melt.exe -progress C:/Users/ivanp/AppData/Local/Temp/kdenlive-wKByjE.mlt
34 482 1
42 960 2
46 1440 3
51 1918 4
58 2394 5
RubberBand: R3Stretcher: WARNING: Unsupported sample rate: 300000 RubberBand: R3Stretcher: Maximum rate is: 192000WARNING: MovingMedian: NaN encountered WARNING: MovingMedian: NaN encountered WARNING: MovingMedian: NaN encountered WARNING: MovingMedian: NaN encountered WARNING: MovingMedian: NaN encountered WARNING: MovingMedian: NaN encountered WARNING: MovingMedian: NaN encountered WARNING:
… and never ended
… the last record:
MovingMedian: NaN encountered WARNING: MovingMedian: NaN encounteredRendering of D:/My Videos/??? ???/??? 10/??? ???. ??? 10.mp4 aborted, resulting video will probably be corrupted.
Frame: 8139

The filename is non-English, is it still ANSI? Oh no… The previous version didn’t have such an issue with rendering.

In order to succeed, I run the older version for rendering, but getting an alarm:
“Version of the project file cannot be read.
Attempting to open nonetheless.” Sometimes it managed to open it without crashing, but it’s very rare.

2

Make sure parallel processing is off.

Do you have special audio in the speed-up clip?

The clip at frame 8139 has some issue. Assuming you have a 25fps project that clip would be at: 8129/25=325.5sec. Maybe transcode that clip in the project bin an exchange it in the timeline and try to render.

Once a project is opened in 23-04 you can’t go back. A Backup file is created when you first time open the project in 23.04. With this backup file you can open the project on older versions.

3

Hi Eugen_Mohr,

Parallel processing is off. Honestly, I didn’t even know about such a check box existence until you pointed me to it.

Normally, I put some music on such speed-up sections. I checked what bitrate I have and it’s mp3 with 320 kb/s (free music from youtube Audio Library.

Original videos I have from Samsung Galaxy S20 with a frame size of 1920x1080, a video bitrate of 16999 kb/s, a frame rate of 29.9878, and two audio channels with a bitrate of 256 kb/s (Kdenlive shows). All default settings from the stocked camera app. Kdenlive said that the videos have variable bitrates.

Before discovering proxy settings I used to decode all original videos as Kdenlive offered but transcoded files take at least 3 times more space on the hard drive and editing processes are very slow and chunky. Now I entirely use proxy files.