I'm making some tutorials and I recorded them with recordmydesktop. This makes a 1280x1024 (my desktop resolution) size .ogv video. It is amazingly crisp and clear and only 100 mb for a 20min video. I'm impressed.
What I'm not so impressed about is video hosting sites not accepting ogv format - for instance vimeo states this:
asf, asx, avi, divx, dv, dvx, m4v, mov, mp4, mpeg, mpg, qt, wmv, 3g2, 3gp, 3ivx and 3vx.
So I reckon h.264 (mp4/mov) is probably my best bet for quality
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or just 0123456789
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640x480 for standard definition 4:3 video, 872x480 for widescreen DV, or 1280x720 for high definition. It is also best to export 1920x1080 or 1440x1080 video as 1280x720 too.
Okay so now I'm screwed - if I want to keep it HD to resize it changes the aspect ratio - not good
I thought about downscaling to 4:3 SD and tried ffmpeg -i input.ogv -s 640x480 -qscale 4 output.mov
This is okay but really a little hard to read and see the details...
I tried opening a HD 1080i project in kdenlive and importing the ogv file doing a bit of editing then exporting losless h.264 but the video was scaled down and very unclear.
I would prefer to be able to get it into kdenlive and add some startup music and a splash screen etc etc....
So I'm kind of wondering what my options are - has anybody done a tutorial and come up with nice large crisp video. Is there a web hosting site than can handle ogg theora?
Any help appreciated
So I went back and noticed there is a preset for vimeo 720p which is cool...except my problem remains. The newly scaled video looks terrible and hard to read,
I did try ffmpeg -i input.ogv -s 1280x720 -qscale 4 output.mp4
This appears to work perfectly when playing back with mplayer/xine/vlc/dragon player - I still get a full screen in my orignal aspect ratio and everything is nice an crisp. The info on the track gives me back a resolution of 1280x1024 (1280x720)....so I'm not exactly sure what's going on there.
I have tried importing into kdenlive both the orignal ogv and the transcoded mp4, but I get the same result on render.