video encoding&cleaning

Codecpage News


SUPER© can trenscode many formats at ease; we will just show a few examples here:

AVC/AAC high density example

This is just an example setting for a dense encoding of full resolution PAL video. Quite self explaining. Be aware that if you change one setting others may also change inadvertently, so check the entire selection again before you start transcoding. Also uncheck the 'high quality' boxes if you want to produce low bitrate videos or you bitrate setting will be overridden.

Improving digicam video

Hard to conceive why these little photo cameras are mostly recording in the MOV format that is alien to PCs even if you take the pain of installing Quicktime, which still doesn't deliver any decoders working with VirtualDub, for example.
For users in PAL countries it's even more annoying that almost any of these little gadgets insists on recording at 30 frames per second. Converting this into 25 fps is anything but simple.

SUPER© delivers a very simple means of transforming those videos into something looking like PAL. Good for the quick job but then 25 fps are just achieved by dropping any 6th frame, an this stutters a bit. Directly encoding to MPEG2 this way also had issues of dropping 1-2 seconds from the end of the video. Anway if your main objective is to keep it simple, here some settings:

NTSC users will have to set 720x480 and 29.97 fps.


Now we will describe a more elaborate method.

First, we convert the video into an intermediate format readable by VirtualDub. This goes as follows:

On the left side are the settings for SUPER©. If MJPEG has problems on your PC, try another format (DV should work), but use a high bitrate anyway. We are converting the video into full format and 60 fps, simply doubling any frame.

On the right side we have an AVIsynth script that can afterwards read the AVI we made and convert the 60 fps into 25 fps, interlaced. This way we are dropping 12 half frames per second instead of 6 full frames and this is a lot smoother. You need to install AVIsynth for this. Simply open the script with VirtualDub and You're set. For the lazy, the script file is here for download (right click on the link). Of course you will have to enter your own file and path for the video source (any editor will do, or use AVSedit).

In VirtualDub we can use more filters to improve the video, for example like this:

Temporal smoother is eliminating pixel noise, while the levels filter corrects for too much contrast.

The best way to proceed now is to start the frameserver in VirtualDub and encode to DVD format, with CCE for example (see DVD page).


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