I haven't been video editing for a while, but recently I found myself looking for a good solution to edit some 1080p with as little quality lost as possible. Those raw files are either in mp4 format or Flash video format, and right from the beginning I realized that, unlike MPEG1 and MPEG2, there's no real lostless trimming solution, so I started lower my expectation and merely trying to find a solution that can retain quality as much as possible.
At the end I found 2 tools, and both are free:
I first tried Windows Movie Maker, and while the interface it's simple and easy to use, I found it a bit fragile and I had to constantly save the project in order to preserve my editing work. But the biggest problem is that it output a video that has different screen size from the original, and that's, to me, unacceptable.
Then I tried Avidmux, and after a bit confused with interface, I managed to edit a video with good precision, and the result was pretty nice. At first I was confused by the output video not playing properly on my iPad, but later I found out that it's because I didn't choose MP4 Muxer as the container. So after I used the following setting:
- Video Output: MPEG4 AVC (x264)
- Audio Output: Copy
- Output format: MP4 Muxer
I got my edited video properly rendered and now it plays very well on my iPad.
I did experienced some crashing when I twisted the ending part of my video, but eventually I got things working as the application preserved a crashed project. But here's my biggest, and properly the only, complain about the application: I have problem finding a way to SAVE the editing project. I know it sounds crazy, but I did tried saving my project, but I couldn't open it later. Maybe it's because I did something wrong. So I will probably spend some time to figure it out. But at the end, I am still very pleased with the result.