Segment re-encoding

[manchester22m]

Hi, I have a small problem when video footage fades in quickly or when there is a flash of light onscreen. Also, some parts of the movie need more attention that other parts, especially things like rain on windows etc....

Is there any program available that will allow me to re-encode certain parts at a higher quality?

[Baldrick]

Garbage In - Garbage Out. You can not reencode your video to better quality. You could add some video filters but it will usually only make the video more "blury".

[manchester22m]

As I understand it, its not reencoding as such, instead its a process of telling the program or encoder to spend more bitrate on a particular section of footage (explosions, fades, rain).

2 pass VBR is good, but it still cant handle fades from white and rain very well.

I know the encoder that came with dvd maestro, and one of the high quality sonic cards is capable of doing this, but the price (for the sonic one at least) is $40,000 so you can understand my search for an cheaper/free alternative!!

I guess Im going to have to make do with 2 pass VBR for the moment...its a shame, cos im a bit of a perfectionist...if its not perfect, its not finished

[Baldrick]

Okey, you mean encode from the original source again?

[manchester22m]

Here's a quote from the magazine in question:

"The first pass analyses the video content and encodes the audio, and the second encodes the video at the variable bit rate, as analysed in the first pass. The author then watches the encode and re-encodes segments of low quality at a higher bit rate. Overall, the encoding can take up to 5 hours per hour of video."

So perhaps the author views the encoded movie (version1), tells the system where to concentrate on specifically, and then the system does the encode from the original source again giving special attention to the areas marked by the author (version2)?

Who knows?

I would like to know, but not if its gonna cost 40k just to touch up movies! Well, not until I become rich from my endeavours 8)

[Craig Tucker]

Like Baldrick says if you wanted improve the image by encoding with miltipass VBR you would need the source that your poorly encoded video came from. Applying a multipass VBR or any other encoding technique to your "poorly" encoded video will only make it look worse.