AnimeSuki Forums

Starks · 2007-06-29, 06:40

Potato, bite the bullet and crop it out.

Zanejin · 2007-06-29, 11:36

Quote:

Originally Posted by Potatochobit

I have a problem with a raw

Spoiler:

see that missing line of pixels? what error did the encoder make to get this to happen?

and can this be fixed with MKVtoolnix or would just re-encoding the whole thing with after effects be faster?

What container was this file using? I remember encountering a similar problem in certain WMVs, like those anime trailers from the official websites. If that's the case, cropping won't do any good. I think it has to do with the decoder or something. If you really want to watch the video without the missing pixels, make a new AviSynth script using DirectShowSource() and run it.

ArchMageZeratuL · 2007-06-29, 16:26

Don't quote me on this, but I think that it has to do with non-mod16 (maybe mod8?) wmv3 files, e.g. 704x396 ones.

Potatochobit · 2007-06-29, 17:38

yeah its a WMV, so i'll try and re-encode it. and if that doesnt work ill try to crop it. and if that doesnt work ill be back to whine more.

TheFluff · 2007-06-29, 19:13

It's a known issue with the WMV decoder (and/or with the associated ATi decoding acceleration) when the height is not mod16, it mirrors or does something else, God knows what to extend out to nearest mod16 height.
(HA HA USERS OF 704x396)

IIRC it may be possible to fix somehow but I have no idea how. Try turning off WMV decoding acceleration if you have an ATi video card.

ArchMageZeratuL · 2007-06-29, 19:24

Here, I've just found an old video encoded with wmv3 in 704x396, and I get that exact same issue. nVidia card here, so it's not related to ATI.

Zanejin · 2007-06-29, 20:14

As I said, the solution is very simple (at least for me). I simply created an AVS file, added the following line:

Code:

DirectShowSource("Path_to_Foo.wmv")

and played the AVS file in Media Player Classic. The weird effect should be gone.

Starks · 2007-06-29, 21:29

Fluff, is is worth resizing a video to 704x400 if the source is 704x396?

Potatochobit · 2007-06-30, 01:22

I went ahead and changed it to 400 and made a lossless then i re-encoded to xvid. seems to be working fine, thanx for all the help.

Orochimaru83 · 2007-06-30, 05:54

Hmmm, anyone can give me a link to a thread for mkv chapters?

Zanejin · 2007-06-30, 11:17

The entire chapter concept is explained quite clearly in mkvmerge GUI's documentation.

checkers · 2007-06-30, 11:27

Quote:

Originally Posted by Starks

Fluff, is is worth resizing a video to 704x400 if the source is 704x396?

It always is worth resizing to mod16 for SD resolutions.

Starks · 2007-06-30, 13:28

Quote:

Originally Posted by checkers

It always is worth resizing to mod16 for SD resolutions.

So, the distortion is negligible?

martino · 2007-06-30, 13:30

Been discussed already quite a few times; http://forums.animesuki.com/showthread.php?t=48116

And yes, I would say that 1% is less than negligible (or whatever that the correct error percentage is, it's very small either way).

DryFire · 2007-06-30, 14:06

That is assuming the picture you view through that 16:9 rectangle is actually 16:9, which isn't always the best assumption.

Nicholi · 2007-06-30, 19:23

@Starks as was previously said in that article, since the error is roughly 1% it is well within ignorable status. However if you wanted you could crop a total of 8 on the horizontal axis to get back to closely 0% AR error, or a total of 12 on the vertical.

As DryFire also pointed out...in the end you have to make the incredibly large assumption that it was done correct in the first place. I can't even imagine this because of all the other crazy shit the cappers do to their encodes. So I'd just ignore it. Specifically for this 704x396->704x400 example though. You just do it on a res by res basis

.

TheFluff · 2007-06-30, 20:29

Do whatever you want, but never encode non-mod16. It's that simple.

Starks · 2007-07-01, 08:17

Quote:

Originally Posted by TheFluff

Do whatever you want, but never encode non-mod16. It's that simple.

You and I already worship the same deities in that regard... ^_^

Potatochobit · 2007-07-06, 01:23

Anyone heard of this program AutoMKV?

this is the first I've seen it. seems pretty useful for changing formats.

why is it running everything in the system run window

edit: so i've been messing with the program a bit and reading on the doom9 forums and I think I'm gona like this program.
its still a work in progress but its pretty cool so far.

I would like to say its the encoding for dummies line of programs. I really like the feature where u can crop and change the width and height. I wish it came with presets on that feature, though. you can preview it in real time, thats very cool.

Kazuma77 · 2008-02-06, 15:13

I have notice my computer doesn't like mkv files

my cpu goes to 100% cause of it, but if i look it in avi then its alright and doesn't push my cpu to 100%

no matter what they say about .mkv, i still prefer my old sweet .avi files

2007-06-29, 06:40	Link #101
Starks I see what you did there! Scanlator Join Date: Apr 2004 Age: 36	Potato, bite the bullet and crop it out. __________________ My list of garbage anime

2007-06-29, 19:13	Link #105
TheFluff Excessively jovial fellow Join Date: Dec 2005 Location: ISDB-T Age: 37	It's a known issue with the WMV decoder (and/or with the associated ATi decoding acceleration) when the height is not mod16, it mirrors or does something else, God knows what to extend out to nearest mod16 height. (HA HA USERS OF 704x396) IIRC it may be possible to fix somehow but I have no idea how. Try turning off WMV decoding acceleration if you have an ATi video card. __________________ \| ffmpegsource 17:43:13 <~deculture> Also, TheFluff, you are so fucking slowpoke.jpg that people think we dropped the DVD's. 17:43:16 <~deculture> nice job, fag! 01:04:41 < Plorkyeran> it was annoying to typeset so it should be annoying to read Last edited by TheFluff; 2007-06-29 at 19:26.

2007-06-29, 20:14	Link #107
Zanejin Junior Member Fansubber Join Date: Jun 2007	As I said, the solution is very simple (at least for me). I simply created an AVS file, added the following line: Code: DirectShowSource("Path_to_Foo.wmv") and played the AVS file in Media Player Classic. The weird effect should be gone. __________________

2007-06-29, 21:29	Link #108
Starks I see what you did there! Scanlator Join Date: Apr 2004 Age: 36	Fluff, is is worth resizing a video to 704x400 if the source is 704x396? __________________ My list of garbage anime

2007-06-30, 11:17	Link #111
Zanejin Junior Member Fansubber Join Date: Jun 2007	The entire chapter concept is explained quite clearly in mkvmerge GUI's documentation. __________________

2007-06-29, 16:26	Link #103
ArchMageZeratuL Aegisub dev IT Support Join Date: Dec 2004 Location: Florianópolis, Brazil, Pale Blue Dot Age: 38	Don't quote me on this, but I think that it has to do with non-mod16 (maybe mod8?) wmv3 files, e.g. 704x396 ones.

2007-06-29, 17:38	Link #104
Potatochobit Certified Organic Join Date: Dec 2005	yeah its a WMV, so i'll try and re-encode it. and if that doesnt work ill try to crop it. and if that doesnt work ill be back to whine more.

2007-06-29, 19:24	Link #106
ArchMageZeratuL Aegisub dev IT Support Join Date: Dec 2004 Location: Florianópolis, Brazil, Pale Blue Dot Age: 38	Here, I've just found an old video encoded with wmv3 in 704x396, and I get that exact same issue. nVidia card here, so it's not related to ATI.

2007-06-30, 01:22	Link #109
Potatochobit Certified Organic Join Date: Dec 2005	I went ahead and changed it to 400 and made a lossless then i re-encoded to xvid. seems to be working fine, thanx for all the help.

2007-06-30, 05:54	Link #110
Orochimaru83 Fansub bitch Join Date: Jan 2007 Location: Brescia, Italy Age: 40	Hmmm, anyone can give me a link to a thread for mkv chapters?

2007-06-30, 13:30	Link #114
martino makes no files now Join Date: May 2006	Been discussed already quite a few times; http://forums.animesuki.com/showthread.php?t=48116 And yes, I would say that 1% is less than negligible (or whatever that the correct error percentage is, it's very small either way). __________________ "Light and shadow don't battle each other, because they're two sides of the same coin"

2007-06-30, 14:06	Link #115
DryFire Panda Herder Join Date: Dec 2005 Location: A bombed out building in Beruit.	That is assuming the picture you view through that 16:9 rectangle is actually 16:9, which isn't always the best assumption.

2007-06-30, 19:23	Link #116
Nicholi King of Hosers Join Date: Dec 2005 Age: 41	@Starks as was previously said in that article, since the error is roughly 1% it is well within ignorable status. However if you wanted you could crop a total of 8 on the horizontal axis to get back to closely 0% AR error, or a total of 12 on the vertical. As DryFire also pointed out...in the end you have to make the incredibly large assumption that it was done correct in the first place. I can't even imagine this because of all the other crazy shit the cappers do to their encodes. So I'd just ignore it. Specifically for this 704x396->704x400 example though. You just do it on a res by res basis .

2007-06-30, 20:29	Link #117
TheFluff Excessively jovial fellow Join Date: Dec 2005 Location: ISDB-T Age: 37	Do whatever you want, but never encode non-mod16. It's that simple. __________________ \| ffmpegsource 17:43:13 <~deculture> Also, TheFluff, you are so fucking slowpoke.jpg that people think we dropped the DVD's. 17:43:16 <~deculture> nice job, fag! 01:04:41 < Plorkyeran> it was annoying to typeset so it should be annoying to read

2007-07-06, 01:23	Link #119
Potatochobit Certified Organic Join Date: Dec 2005	Anyone heard of this program AutoMKV? this is the first I've seen it. seems pretty useful for changing formats. why is it running everything in the system run window edit: so i've been messing with the program a bit and reading on the doom9 forums and I think I'm gona like this program. its still a work in progress but its pretty cool so far. I would like to say its the encoding for dummies line of programs. I really like the feature where u can crop and change the width and height. I wish it came with presets on that feature, though. you can preview it in real time, thats very cool. Last edited by Potatochobit; 2007-07-06 at 04:13.

2008-02-06, 15:13	Link #120
Kazuma77 Kakashi Fangirl Join Date: Jul 2007 Age: 39	I have notice my computer doesn't like mkv files my cpu goes to 100% cause of it, but if i look it in avi then its alright and doesn't push my cpu to 100% no matter what they say about .mkv, i still prefer my old sweet .avi files __________________ ~Ladies, if a guy ever tells you, he wants to cover you from head to toe in honey, and lick it all off inch by inch, that's the man who hasn't done it before. You start at her toes, and before you get to anything interesting, she is asleep and you are in diabetic coma ~