View Full Version : wmv9 strange problem
svg
7th December 2006, 00:30
well I am making counter-strike movies and when it is time to render the problem appears...
so, when I render in wmv9's (in Video Vegas of course) in bit rate VBR in 4,5 M and the picture suppose to be very nice but it is not. I have nice effect in 12 br vbr which is absurd! In every wmv cs turorial it is said to use 4 or 4,5. Also when I render in wmv9's quality vbr 100 the quality is also nice but the size is BIG and sound isn't synced. 12 br vbr has similar size and it is 10 sec - 45 mb.
In xvid situation is similar - double pass gives me poor quality and single pass gives me the same as wmv9's quality vbr 100.
Maybe it is codec conflict or smth? I have uninstalled everything by codec sniper and installed wmp10, wmv9 vcm, ffd show, x264 and latest koepi's xvid.
My specs:
Pentium IV 2,4 GHz
768 RAM 333 Mhz
Radeon x1600 256 mb
MoBo MSI 645 E-MAX (socket 478, fsb 500)
plz help i've been to many cs moviemaking related forums and nobody helped me... I am counting on you :)
foxyshadis
7th December 2006, 01:58
What are the dimensions and framerate of your video? If they're 1600x1200 @ 60fps or something crazy like that, it'll need enormous amounts of bitrate. If you're at 800x600 @30 you should get good quality at 4.5mbps. You should also enable the strongest FSAA, AF, high quality scaling, and other forms of filtering that you can, because they create a smoother and easy-to-encode video. Looks nicer too. A lot of people record the run at low settings and render it in high later.
(High quality gaming video requires significantly higher bitrate than a normal DVD would, even at the same size, because the motion isn't smooth and film-like at all, and edges are extremely sharp. Even more so if you don't do any filtering.)
svg
7th December 2006, 13:15
well they are in 1024x768 with huffYUV codec for smaller size and 90 fps so I have to triple its speed in vegas. Anti Aliasing and similar stuff is maxed. Should I decrease resolution or something?
KoD
7th December 2006, 15:27
90fps... isn't that excessive ?
mahsah
7th December 2006, 21:16
You can keep the resoulution that high, especially if you want details like text to stay readable.
I would, however, recommend decimating the frames with avisynth to something more sane, as this WILL reduce the video size by, well, roughly a third (if you make the FPS 30 :D) You might want to try 45 FPS also, maybe that will make it smoother then 30.
svg
7th December 2006, 22:17
no, 90 fps is absolutely normal :) the point is why I have ugly quality at 4M and god damn double passes. Could someone tell me why?
foxyshadis
7th December 2006, 22:40
Because it's just not enough bitrate. Try setting it to the default settings - one pass vbr quality based, with a quality of 80. Then you'll get an idea of how much bitrate you'll need for your encoding.
You can try it with xvid at q4 and x264 at crf22 as well, if you want to compare other codecs' "decent quality" sizes
zambelli
8th December 2006, 01:18
no, 90 fps is absolutely normal :) the point is why I have ugly quality at 4M and god damn double passes. Could someone tell me why?
Let's assume for a second that you need 2 Mbps with XviD, WMV9 or another similar codec to get good quality at 640x480@30fps. That's 9216000 pixels/second. 1024x768@90fps would equal 70778880 pixels/second, implying that you'd need a bitrate 7.68 times greater than 2Mbps to achieve simialr quality.
tominator
8th December 2006, 11:13
no, 90 fps is absolutely normal :) the point is why I have ugly quality at 4M and god damn double passes. Could someone tell me why?
FPS in Counter-Strike and FPS in a video is not the same thing. You are using far too many FPS for your video.
Try using 30 and youll have far more bitrate available/frame which will increase the quality of your video by a lot.
svg
8th December 2006, 13:55
no, for final render I am using 30 fps :)
thx zambelli i'll check that
svg
10th December 2006, 14:51
hmmm nothing changed after in quality after decreasing resolution... Well I'll post u 4,5 Mbit today or tommoro
KoD
10th December 2006, 15:30
It's not the resolution you need to change, but the number of frames your pushing to the encoder. You really need to decimate to something like 30fps. Do the math:
1024x768 * 90 fps = 70778880 pixels/s that the encoder gets
800x600 * 90 fps = 43200000 pixels/s
1024x768 * 30 fps = 23592960 pixels/s
800x600 * 30 fps = 14400000 pixels/s
As you can see, decimating to 30 fps lets the encoder work on less pixels per second than keeping 90 fps but reducing resolution to 800x600. Give the encoding codec a chance...
foxyshadis
11th December 2006, 01:38
I think he's saying he actually does use 30fps for the final output. I'm just waiting to see the file, that should help diagnose.
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