Strange problem with stream/compression

Autraya · Post by **Autraya** » Mon Mar 12, 2007 6:41 am

Autraya wrote:'cause Ima stubborn cow and i like huffy!
lol
'cause many MEPs n contests prefer huffyuv and Premiere doesn't hump lagarith the way vegas does.
And we haven't solved the problem... just avoided it

sry double post
foxed

JaddziaDax · Post by **JaddziaDax** » Mon Mar 12, 2007 7:05 am

bah@premeire

BasharOfTheAges · Post by **BasharOfTheAges** » Mon Mar 12, 2007 1:22 pm

you've wasted more time discussing it in this topic than it would have taken to re-encode a few more times... what does that tell you?

Kariudo · Post by **Kariudo** » Mon Mar 12, 2007 2:15 pm

Lockstock wrote:
Up In Flamez wrote:Well I don't use premiere pro, but everyone says that premiere pro sucks at exporting with codecs like huffyuv/lagarith
no one says that... I've used premiere pro with huffyuv ever since i started editing and I've never had problems exporting.

I says that, because it is a real problem. (other people say it too, you are one of the lucky few that don't experience the problem(s))
Premiere pro's export sucks and usually only works properly when exporting uncompressed as demonstrated in this thread.

this is one of the worst cases I've seen though, usually I only get garbage on the top of frames with a considerable ammount of motion from frame to frame or when I cut to a considerably different clip

Scintilla · Post by **Scintilla** » Mon Mar 12, 2007 4:40 pm

Change to Recompress Always (instead of Maintain data rate)?

And Lockstock, thank you. I was beginning to think I was the only one who never had such problems with APP.

Lockstock · Post by **Lockstock** » Tue Mar 13, 2007 1:00 am

wouldn't surprise me if the people talking about having problems exporting are using video sources with codecs such as DivX and XviD... The exporting problem here has nothing to do with premiere, it's a codec issue, which is evident by the video exporting fine with no compression. Issues like this can come up from using incompatible codecs with premiere for your source footage or compression method in most cases but really I still don't have any idea why Autraya's huffyuv is screwing up.

one of the lucky few? try the sensible few

Autraya · Post by **Autraya** » Tue Mar 13, 2007 1:17 am

lol katie

BasharOfTheAges wrote:you've wasted more time discussing it in this topic than it would have taken to re-encode a few more times... what does that tell you?

it tells me that although there are alternatives and work arounds, there is a problem and know one knows how to fix it and I don't want to be doing things the long way around and wasting hours encodeing with every video i do from here on out when i don't have to.
If you're not going to be helpful go spam someone elses thread and get the hell out of this one. Other people have offered ideas which I've taken on board and tested out.

Up until recently there was no problem... I've heard that this happens to lagarith exports from premiere too so i start using Lagarith and then if/when the same thing happens it would be good to know how to fix it.

Karuido wrote:Premiere pro's export sucks and usually only works properly when exporting uncompressed as demonstrated in this thread. ?

but only since yesterday for me... which would indicate that something has happened to make it go that way... well thats what it makes me think anyhoo

Scintilla wrote:Change to Recompress Always (instead of Maintain data rate)?

...

... u... ROCK! Hey Karuido try that and see if it works for you!
OMFG it works... i've never used the option like that before buuutt I'll take it!

Scintilla · Post by **Scintilla** » Tue Mar 13, 2007 6:24 am

Lockstock wrote:wouldn't surprise me if the people talking about having problems exporting are using video sources with codecs such as DivX and XviD...

No, they're usually talking about the lossless codecs like HuffYUV and Lagarith. They're also oftentimes people who know what they're talking about, such as Zarxrax.

And Autraya, good to hear it worked.

For completeness's sake, I got the idea from this section of the A/V tech guide:

Absolute Destiny wrote:Recompress - If you do have RGB compression enabled in huffYUV then make sure you select this and choose "Always" (not Maintain Data Rate like the picture says). If you don't do this then Premiere can sometimes do a direct stream copy on clips and pre-rendered scenes and this could be in a different colourspace when using Huffyuv (as it has two modes). If this happens you will end having parts of your amv that are a screen of rainbows as the codec is only decoding either RGB or YUY2 not changing between them. Hence, you should always recompress to be certain it's compressing correctly.

Lockstock · Post by **Lockstock** » Tue Mar 13, 2007 6:53 am

Scintilla wrote:
Lockstock wrote:wouldn't surprise me if the people talking about having problems exporting are using video sources with codecs such as DivX and XviD...
No, they're usually talking about the lossless codecs like HuffYUV and Lagarith. They're also oftentimes people who know what they're talking about, such as Zarxrax.

I only speak from personal experience. Wasn't aware that lossless codecs caused such issues with exporting in Premiere Pro without the editor causing the problem themselves through using incompatible codecs and such.

Willen · Post by **Willen** » Tue Mar 13, 2007 7:23 am

Lockstock wrote:
Scintilla wrote:
Lockstock wrote:wouldn't surprise me if the people talking about having problems exporting are using video sources with codecs such as DivX and XviD...
No, they're usually talking about the lossless codecs like HuffYUV and Lagarith. They're also oftentimes people who know what they're talking about, such as Zarxrax.
I only speak from personal experience. Wasn't aware that lossless codecs caused such issues with exporting in Premiere Pro without the editor causing the problem themselves through using incompatible codecs and such.

From the section that Scintilla quoted from, the problem actually stems from colorspace issues, which is what I suspected from the start. Unfortunately, not being an Adobe Premiere user, I had no clue as to a fix. This is probably why it is suggested to encode all clips for editing as RGB since that is what APP uses internally anyways.

Of course, using DivX or XviD as source and then outputting with Huffyuv in RGB mode may also produce this problem as DivX, XviD, MPEG-2 and most other lossy codecs use YV12 colorspace.