I would like to propose an idea to have constant and fast time-line editing performance in Kdenlive with different raw footage. It directly affects rendering and therefore I write to that Forum Topic.
I am a new user of Kdenlive that has a new AVCHD camera (Canon HF100) and an older laptop (Intel dual core T7200 2.00GHz CPU, 1GB RAM) for video editing.
I tried the program and it is very easy to use, well-looking and feature rich, however it is so slow with my 1080i .MTS files.
So I wanted to ask:
I see that rendering can take up time with AVCHD, but why should time-line editing be so slow?
So the idea that came to me that perhaps is well know anyway:
Use intermediate clip representation with lower resolution that is directly linked to the higher resolution clip files via some timing meta-data.
So then the improved work-flow should look like:
1. Add clips
2. Trans-code clips to intermediate lower res representation.
NOTE: This can take time, but should result in clips that are very fast to add and edited on the time-line even on slower PCs.
3. Edit time-line
NOTE: At least for me is not so important to work on hires video here, but is very important to have a responsive software. I could also live with very fast "wire-frame" mode like in CorelDraw for exmple.
NOTE: This can take its time, while I sleep or go to work ;). It would be great if it can somehow avoid trans-coding the original clips when desired output has same video properties as the raw video clips (smart-rendering).
NOTE: Using the intermediate metadata that links hires initial clips to lower res intermediate representation should be of help to smart-rendering.
I know I am a beginer to video-editing, but wanted to know if above ideas make sense.
Thank you very much for your time to read and provide feedback.
All the best from one big linux fan :)