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View Full Version : DivX AVI 720x576 - Plays in wrong Aspect Ratio


bmnot
2nd November 2008, 20:15
Hi!

I encoded a VOB from a DVD (PAL anamorphic 16:9) with DivX and in order to keep as much of the original Image as possible I chose not to resize it, but I set 16:9 PAR in the codec "Output-PAR" (Divx 6.8)

The video plays fine in VLC (that is in 16:9), but in Winamp/Media Player Classic (ffdshow) it plays in 4:3 - Is there a way to configure the AVI so that it plays in 16:9 on all players? Or the player/decoder so that it recognizes 16:9 material (just like VLC does)?

Edit: Gspot Screenshot (http://www.picoodle.com/view.php?img=/3/11/2/f_gspotm_941d1ff.gif&srv=img34)

CWR03
3rd November 2008, 07:03
Gordian Knot may not be keeping your "Output-PAR" setting you're selecting within the codec. As suggested in your other thread on this same subject, you might consider another encoder, or resize the video to its proper DAR since you plan on PC-only playback.

netmask
3rd November 2008, 07:23
I had a problem with an European movie from the late 1950's that had an aspect ratio of 1.66:1 I used MPEG4 Modifier to set the aspect ratio as NTSC 16:9 It then reproduced correctly, with small black bars either side on any file player on my computer and via my Beyonwiz network PVR via a 16:9 Samsung TV. http://forum.doom9.org/showthread.php?s=&threadid=78050

delacroixp
9th November 2008, 12:57
I read through your thread on Mod-16 & Croping black stripes (http://forum.doom9.org/showthread.php?t=142474) . When you're a newbie happiness (http://forum.doom9.org/showthread.php?p=1209185#post1209185) can be illusive and ultimately, even what you are trying to achieve can be less-than obvious.

Size is not that much of a problem (the DVD itself is about 7,12GB, I'd be happy enough to go up to 5,10GB for the ripped AVI as long as the quality is fine)
7.12 GB downto 5.1 GB is hardly bone-crunching compression. Quite frankly, this is more like DVD (http://www.dvdshrink.org/what_en.php) Shrink (http://www.softpedia.com/progDownload/DVD-Shrink-Download-4128.html) territory. It'll let you extract extras or any extraneous audio tracks and you may ultimately find that no physical compression is actually necessary. A simple 'DVD Decrypter (http://dvd-decrypter.en.softonic.com/) direct copy' (guide (http://www.doom9.org/index.html?/dvddec.htm)) into 1 single file might also work just fine.
However, encoding could be a bed-fellow for years to come ... wayyy beyond this imediate project of yours.
With that said, Gordian Knot (http://en.wikipedia.org/wiki/Gordian_Knot_(software)) is pretty ancient and works well in experienced hands but you may prefer a more recent addition to the Mpeg4/AVI encoder stable.

Anamorphic (http://en.wikipedia.org/wiki/Anamorphic_widescreen) (history (http://en.wikipedia.org/wiki/Anamorphic)) encoding can get rather tricky, even for advanced users, so that a good understanding of the fundamental process is essential.
While a standard PAL 720x576 DVD (16:9) displays at 1024x576, the actual number of pixels is limited to 864x480 [mod 16] when resized to square pixels at full resolution (croping will further reduce the figures). Most people then reduce the resolution downto a width of 720 (or 720x400) to make the whole encoding process worth the effort and time.
As CWR03 mentioned above, resizing may simplify the playback process untill you have a better grasp of the issues involved (manually setting the aspect ratio to 16:9 in most players will also work).

A final thought is that you bypass AVI entirely and encode into a brand new format like mp4 (H264) (http://en.wikipedia.org/wiki/H.264) with numerous frontends based on the free X264 (http://en.wikipedia.org/wiki/X264) encoder.
My favourite is AutoMKV (http://automkv.a.wiki-site.com/index.php/Main_Page) but Handbrake or MeGUI can work equally well depending on your preference.


It's all good !
:):devil::D
Pascal