So, I have a few MP4 video files that I want to edit, and in my experience doing so, editing such files are a huge strain on my system. So, I run these files through avconv, converting them into Huffyuv lossless files, so that I can maintain the quality but have something more manageable to edit. (I also run them through yadif, because they need to be deinterlaced, and made sure to cap the FPS at 30, because avconv seems to think I like video files with framerates in the 4000s.)
Anyway, these videos play fine in both VLC and Totem. But when I try to edit them in either Kdenlive or OpenShot, the audio is usually pretty out of sync in the preview pane and renders as such in the final product. Can anyone give me a clue as to what is happening here or how I can fix the audio desync?