Welcome to Doom9's Forum, THE in-place to be for everyone interested in DVD conversion.

Before you start posting please read the forum rules. By posting to this forum you agree to abide by the rules.


Go Back   Doom9's Forum > Video Encoding > MPEG-4 AVC / H.264

Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
Old 18th October 2009, 23:07   #1  |  Link
Registered User
Join Date: Mar 2005
Location: Amsterdam
Posts: 41
Compression of black bars in AVC, does it take a lot of space?

I've been experimenting with different encode settings. The original goal was to see for myself the quality difference (if any) at medium bitrates. By mistake I have made one version of 'The Patriot' (2:55hours) with the black bars cropped (17Gigs) and one version without cropping (19Gigs).

I'm having a hell of a lot of trouble actually seeing any difference in both encodes, but that *may* be because the moving part of the movies have roughly the same bitrates while the black bars eat up those 2 extra gigs. I don't really know.

What I'm actually asking you folks here is about the compressability of the black bars; Can anyone give me a reasonable conclusion of how cropping black bars affects movie quality when encoding at the same bitrate? (do they compress down to near nothing or are they hungry for bits?)

Last edited by tijgert; 18th October 2009 at 23:10.
tijgert is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT +1. The time now is 04:35.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2018, vBulletin Solutions Inc.