Rendering crashed multiple times

Help
1

Hello everyone,
I have a big Problem. I created a really nice and long and compley video in kdenlive. The Rendering crashed multiple times in different Video formats. Everytime the Error Message is the following:

[in @ 0000011abc2f2e80] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011abc2f2e80] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2133.68
[mp3 @ 00000119f4a93cc0] Estimating duration from bitrate, this may be inaccurate
[mp3 @ 00000119f4a91e80] Estimating duration from bitrate, this may be inaccurate
[in @ 0000011a55411500] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55411500] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2138.68
[in @ 0000011a55412e00] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55412e00] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2143.68
[in @ 0000011a55410c00] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55410c00] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2148.68
[in @ 0000011a55410900] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55410900] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2153.68
[in @ 0000011a55410800] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55410800] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2158.68
[in @ 0000011a55410700] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55410700] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2168.68
[in @ 0000011a55411200] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55411200] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2173.68
[in @ 0000011a55411700] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55411700] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2178.68
[in @ 0000011a55412300] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55412300] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2183.68
[in @ 0000011a55412500] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55412500] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2188.68
[in @ 0000011a55413a00] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55413a00] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2193.68
[in @ 0000011a55413c00] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55413c00] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2198.68
[mp3 @ 0000011a49d2cf80] Estimating duration from bitrate, this may be inaccurate
[mp3 @ 0000011a49d2abc0] Estimating duration from bitrate, this may be inaccurate
[in @ 0000011a55415100] Changing video frame properties on the fly is not supported by all filters. [in @ 0000011a55415100] filter context - w: 1920 h: 1080 fmt: 26 csp: unknown range: unknown, incoming frame - w: 1920 h: 1080 fmt: 26 csp: bt709 range: tv pts_time: 2203.68
[filter avfilter.gblur] Cannot get in frame buffer

This is the end of the Error log its to long to copy it.

Can someone please help me. The Video is around 55 minutes and it took me a long time to create it.

GaLiGrü Mika

2

Hi, and welcome to the forum and community.

Please open a bug report in the official bug tracker, or via Kdenlive Menu > Help > Report Bug

3

Does it crash at exactly the same place each time?

Most of those ‘errors’ look like ‘harmless’ warnings to me related to reading your unedited source material and the properties of it.

I’m not exactly sure what this one is upset about:
[filter avfilter.gblur] Cannot get in frame buffer

But if it crashes in exactly the same place you could try rendering just that portion of the timeline, and if it still crashes keep narrowing in until you find exactly which clip or effect is at fault.

However my first guess is that you’re probably just out of memory, and it ‘crashes’ after roughly the same amount of time each time. In which case, you’ll either ‘need a bigger boat’, or will need to break it down into smaller ‘chapters’ for rendering which you might be able to concatenate later.

4

Export everything in mkv, so if it crashes you don’t lose the file. This is the way I used. Or concatenate as Ron said.

5

First, try running Kdenlive from the terminal to get more detailed error logs, which can help you identify the exact cause of the crash.

Check if the filters you’re using are compatible with your video format and resolution. The error message suggests that some filters don’t support changing video frame properties on the fly, so disabling or replacing these filters might help.

Consider downgrading the MLT (Media Lovin’ Toolkit) version. Some users have found success by downgrading from a newer version to 0.7.6, which resolved rendering issues.
Using the Kdenlive AppImage version can also be more stable and less prone to crashes. Ensure you have the necessary dependencies like breeze and breeze-icons installed

6

It’s been a long long time since kdenlive worked with MLT 0.7.6 …