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Dxtory => Help & Support => Topic started by: jordan481 on September 18, 2015, 12:37:03 AM

Title: Grainy video?
Post by: jordan481 on September 18, 2015, 12:37:03 AM
Hi, I'm new to Dxtory but already loving it but, I don't know if this has already been posted in a previous thread but I just wanted some information on my recordings, they seems to look a little grainy and odd after I have finished recording a game.
I don't know if this is something to do with settings I am using or the codec (matrox codec) or if its just something you can get rid of in post editing, (I only record the videos, not edit them).
The problem is that when I watch the videos afterwards they seem to have a grainy effect on them like static, its hard to capture in a screenshot but I've tried my best, its noticeable in the areas I've marked out, as I said is this just something that gets sorted out or is my Dxtory not set up properly etc?

Any information would be greatly appreciated thank you.
Title: Re: Grainy video?
Post by: ExKoder on September 18, 2015, 01:01:50 AM
Please submit a Environment Information.

http://forum.exkode.com/index.php?topic=2.0 (http://forum.exkode.com/index.php?topic=2.0)
Title: Re: Grainy video?
Post by: TheBadLuckPrince on September 18, 2015, 01:47:05 AM
What bitrate are you using with Matrox?
Title: Re: Grainy video?
Post by: jordan481 on September 18, 2015, 02:41:17 AM
Hi, how do I check bit rate on the codec? and here is my Environment information as well,
Thanks.
Title: Re: Grainy video?
Post by: ExKoder on September 18, 2015, 03:44:54 AM
If you use a lossy codec, I think that it is a natural result.
I answer nothing about encoding.
Title: Re: Grainy video?
Post by: jordan481 on September 18, 2015, 04:24:57 AM
Well then what's the best codec to use for 1080P recording, with minimal loss etc?
Title: Re: Grainy video?
Post by: TheBadLuckPrince on September 18, 2015, 07:06:00 AM
The Dxtory Codec on Medium should work fine.
Title: Re: Grainy video?
Post by: jordan481 on September 18, 2015, 07:13:15 AM
Sorry as I said I'm new to it, how would I change it to medium? and will that still run 60fps? at the moment I'm using this one - see attachment.
Title: Re: Grainy video?
Post by: TheBadLuckPrince on September 18, 2015, 09:08:03 AM
The little pencil next to the Codec Name, increase the Bitrate of  the Matrox Codec to somewhere between 150 & 250, if you're recording at 60 fps, make sure it's 60 fps in there as well.
Title: Re: Grainy video?
Post by: jordan481 on September 18, 2015, 09:36:36 AM
Hi, thanks for the response, I tried that and put it onto 250mb, and it still persisted, are there any other codecs that are better than Matrox for recording HD 60fps? that might not have these problems?
Thanks.
Title: Re: Grainy video?
Post by: TheBadLuckPrince on September 18, 2015, 09:57:01 AM
Try the Matrox Uncompressed HD Codec or the Dxtory Codec at Medium quality
Title: Re: Grainy video?
Post by: jordan481 on September 18, 2015, 09:59:16 AM
Thanks,  I'll try them in the morning and get back to you soon as, thank you  :)
Title: Re: Grainy video?
Post by: TheBadLuckPrince on September 18, 2015, 10:12:13 AM
Sure thing.
Title: Re: Grainy video?
Post by: jordan481 on September 19, 2015, 01:08:54 AM
Hi, I tried the Matrox uncompressed that seemingly fixed the (grainy) issue, but would not run above 30 fps despite being set on 60fps, and I messed around with the dxtory codec from full to RGB to medium and they as well seemed to fix the grain issue but all were giving me around 20fps frame drops, so I'm going to have to compensate somewhere.
Thanks.
Title: Re: Grainy video?
Post by: aznricepuff on September 19, 2015, 02:14:17 AM
Try utvideo: http://www.videohelp.com/software/Ut-Video-Codec-Suite
Title: Re: Grainy video?
Post by: jordan481 on September 19, 2015, 02:37:01 AM
hi, thank you aznricepuff that codec works amazingly, just one more question, are there any settings and configurations etc in the  codec and little pen icon settings that you would recommend for optimal results that you know of from experience?

I'm using the one highlighted at the moment with no changes but I don't know if it's the best out of the lot.

Once again thank you.
Title: Re: Grainy video?
Post by: aznricepuff on September 19, 2015, 02:59:21 AM
The different utvideo codecs let you select between colorspaces and different levels of chroma subsampling. The RGB codec will give you true lossless capture (vs. the chroma-subsampled YUV codecs, which will force a colorspace conversion and then throw away some chroma information) but will take up the most space as well.

The codec-specific settings (the pen icon) should be fine at their defaults. You can freely switch between "optimize for file size" and "optimize for decode speed" based on your preference. It doesn't affect quality (it's a lossless codec, after all) or encode performance.
Title: Re: Grainy video?
Post by: jordan481 on September 19, 2015, 03:13:34 AM
Cheers for the information, I'm quite liking this codec, and I'm happy with the RGB codec.
Once again thank you, been a great help.

So has everybody who has responded as well :D
Title: Re: Grainy video?
Post by: TheBadLuckPrince on September 19, 2015, 12:43:25 PM
If utVideo Codec doesn't do it for you Try Lagarith Codec @ YV12