Here is the updated blog after I initially blogged about this last week
Anyways... iMovie does not allow you to sharpen or pull the colors from your raw footage - you just have to arrange your video sequences and create your collage!
So I was searching for ways to color grade and push the sharpness of my footage form my Panasonic GH13 (without having to use FCP or some high-end tools) and found this link. Quite interesting!
So the other night I started to follow the instructions but the results were not quite sharp. I was initially disappointed but then I tried to extract TIFF images out of my raw footage and wow I was able to get superb results. I am going crazy now extracting and editing all my old MTS files :)
Here are the steps I followed and at the bottom you can see links to the videos - a footage straight from my GH13 (with smooth -2,-2,-2 settings) and the "edited" footage.
1) Here is how I extracted tiff images from the video file:
ffmpeg.exe -i 00007.mts -preset libx264-lossless_slow.ffpreset -r 23.976 -s 3072x1728 -f image2 foo-%04d.tiff
Note: In some cases I could see some artifacts when I used the above command line so I started to use the one below instead (of course the size is now same as what your camera would record at):2) Then I used PhotoFunStudio which came with my camera and converted the tiff to jpeg
ffmpeg.exe -i 00007.mts -preset libx264-lossless_slow.ffpreset -r 23.976 -sameq -f image2 foo-%04d.jpg
Yes, it is straight JPEG export! So I skipped the next step.
3) Then as per the steps in FourSeasonsHD I used Exifer to rewrite the exif info on the converted jpegs (using the same exif data provided in FourSeasonsHD)
4) Then I used SilkyPix which again came with my camera to edit (as per the steps in FourSeasonsHD). I was able to tweak pretty much everything. I still have to figure out how to create the gritty look etc... some day I will...
5) Then I extracted audio:
ffmpeg.exe -i 00007.mts -acodec copy -vn audio.ac3
6) Then finally I mux-ed with the original audio to create the "edited" video:
ffmpeg.exe -r 23.976 -f image2 -i foo-%04d.jpg -i audio.ac3 -vcodec libx264 -s 1920x820 -acodec copy videoaudio.mp4
Note: I had used -s 1920x816 earlier but looks like 1920x820 is the right aspect ratio.And now ...ta da....here is the original video ...
PS: If you are into editing with ffmpeg then check out: