Youtube post-upload Artifact issues

[DUCKVILLELOL]

Hi folks,

New here obviously - I've had a search around to try and find exactly what I'm after, but I got a bit lost because some of the things go a little over my head unfortunately - also I couldn't find another thread with my same situation.

I've been doing a lot of uploading to Youtube with some Starcraft 2 matches I've recorded in FRAPS, then edited/rendered in Sony Vegas - however once I upload to youtube - I get some artifacts(is that the right term?) that pop up which are really starting to annoy me. Sometimes the videos have very little at all, and some - like this one have a larger amount of them.

What I don't understand (which is a drop of water in a lake in the video-editing field I'll admit) is that once I render the files, I take a quick look at them myself and there's no problems at all. It is always once they are up on youtube that the problems occur.

I'll give some details but please let me know if you need more to help out;
I'm recording from SC2 with FRAPS on 30FPS,
Using Vegas 9.0 to setup the videos, then render - rendering settings are AVCHD 1920x1080-60i at 29.970 (NTSC) frame rate (hmmm... should I change fraps to this?) at 16,000,000 bit rate.

Luckily for the moment not many viewers have mentioned it at all - but as I'm trying to get everything looking nice it's becoming increasingly frustrating for me to see these come up

If you need more info please let me know, thanks

Oh and my secondary question which I thought I had fixed - in videos such as this I get these weird blackout issues sometimes. This one occurs between 8:34 and 9:40 - I had done some searching and I had found the solution was to turn off re-sampling on each of the individual FRAPS segments - yet in some of the recent games I've done it still occurs. Does anyone know if there is another issue it might be?

[aedipuss]

the source is 30p? no? why the heck are you interlacing it? youtube only works ok with progressive video. keep it 30p.

[DUCKVILLELOL]

the source is 30p? no? why the heck are you interlacing it? youtube only works ok with progressive video. keep it 30p.

So I should change the project properties/rendering template to a 30p version and turn of deinterlacing?

[aedipuss]

if your source, project and output are progressive there is no deinterlacing involved.

[DUCKVILLELOL]

if your source, project and output are progressive there is no deinterlacing involved.

I'm not even sure I can remember why I had it there in the first place - I think when I originally started making the videos there was a lot of tearing and someone advised me to turn on blend deinterlacing.

Would this also be the cause of the "blackout" issues too?

Thanks for your help - currently rendering something and I'll upload shortly to check

Didn't really work - I'm trying some other settings.

[manono]

You should look at the video, aedipuss. His problem isn't interlacing but some kind of nasty video corruption from time to time. I have no idea what would have caused it if it doesn't have it before being uploaded.

[intracube]

Your problem sounds (and looks) like the problem I had with AVCHD files from my camcorder. I got intermittent glitches when playing clips with mplayer, or encoding with ffmpeg.

I never found out exactly what the problem was, but I only seemed to get it with interlaced video files recorded at a high bitrate. An upgrade to ffmpeg fixed the problem, and for mplayer adding -demuxer lavf when playing videos stopped the glitches. I'm not sure what software YouTube are using to convert their videos, but it's possibly a problem at their end.

I'll give some details but please let me know if you need more to help out;
I'm recording from SC2 with FRAPS on 30FPS,
Using Vegas 9.0 to setup the videos, then render - rendering settings are AVCHD 1920x1080-60i at 29.970 (NTSC) frame rate (hmmm... should I change fraps to this?) at 16,000,000 bit rate.

Why have you chosen to render your videos to AVCHD? Have you experimented with other HD formats like .mp4 or .mkv files?

Also, I'd set the frame-rate to 30p.

Are you saying your bit rate is 16Mbit/s? That seems rather high considering YouTube will reduce it to around 5Mbit/s. Try aiming for a bit rate of around 8Mbit/s.

[aedipuss]

use mediainfo in text mode on the source file, confirm it's progressive. edit in vegas. when it's time to render choose the sony avc type video and the "internet 1280x720 30p" or "internet 1920x1080 30p" template. the only thing you need to change is the bitrate in the video option tab. 16mbps is a bit excessive, 8-10mbps should be adequate.

[DUCKVILLELOL]

use mediainfo in text mode on the source file, confirm it's progressive. edit in vegas. when it's time to render choose the sony avc type video and the "internet 1280x720 30p" or "internet 1920x1080 30p" template. the only thing you need to change is the bitrate in the video option tab. 16mbps is a bit excessive, 8-10mbps should be adequate.

Thanks Aedipuss - I've re-rendered a small segment and it looks a lot better - no artifacts at all. I've used your suggested templates fyi.

http://www.youtube.com/watch?v=gl3duoULh4Y is the example.

I'm just going to upload some new content I've created using the format, hopefully it'll all go smoothly!

Once again thanks