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View Full Version : Party videos from DV source - How to encode proper? Video clip provided

Mistwalker
8th January 2006, 21:34
Yeah, because I always turn out at encoding around 1100-1300Kbit/sec to get a decent quality.

But my referals are DVD rips, which really can't be compared to a handycam source - since colors and movements are a lot more intensive with a handycam. (Fast pans, shaking camera etc.

I've been encoding with GK for a while, since 2003 actually. I've been getting pretty nice results untill I started to film with a camera light on my handycam. No wonder since brighter areas can't be compressed as much as the darker ones.

I want to be able to watch the videos I encode in fullscreen without too much quality loss, and the size should be internet friendly. My videos are often 4-5 minutes long, and with a bitrate of 1000kbit/sec I should be able to hit sizes around 45-55Mb (audio included). But when I do, I'm really not comfortable with the quality. It seems that you can't get really high quality with dv cams as source when hitting for really small filesizes.

To make it easier, I've supplied a link to a 1min video that is typical for my videos; A lot of light, lots of people, fast moving pans etc.

Check it out.

This clip is encoded with XviD 1.1, target size 9000kb (to make sure it fits on my 10Mb account at my ISP for free bandwith :sly: )

This is typical for my movies. Xmas Party (http://w1.877.telia.com/~u87717718/xmas_party.avi)

When I encode a 7min long video, I end up at aprox. 70Mb of video + audio file. But still I'm not satisfied with the quality in fullscreen. I want a lesser amount of macroblocks, and they appear more when filming plain skin, like legs as you can see in my 1min video for example ;)

What are your tips for me to enhance and deliver a video with better quality without delivering to big files? Should I just increase the bitrate at 320x240, or should I increase the resolution AND the bitrate?

I really don't know what to do here. I'm delivering the best quality videos over here right now according to the filesize, but I still want to do better. The other ones are delivering their stuff within the WMV container. So I'm kinda ahead of them ;) But as I said, I want to be the best! ;)

Btw, I've used the guides at this page to encode the video. Some small changes though: VHQ Mode: 4 - Wide Search, Use VHQ for bframes too. As I read in some thread that those options should put out a little better quality.

I hope that you understand my questions, and that the video will give you enough with info to help me out ;)

Btw, the quality in the video is not acceptable by me, I had to compress it a little too hard to be able to fit it on the ISP account.

Thanks in advance, I hope that someone can help me out with this! :D
*.mp4 guy
9th January 2006, 02:35
You could try X264, its very good at delivering video when bitrate is a bit short. Or you could go try to increase compressability with filters.
Mr_Khyron
9th January 2006, 10:59
Using a low bitrate quantization matrix might help.
or maybe Bulletproof's Heavy Compression Matrix.
Mistwalker
12th January 2006, 09:17
You could try X264, its very good at delivering video when bitrate is a bit short. Or you could go try to increase compressability with filters.

I've been thinking about X264 for a while now, it really drags my attention. Better try it of ;)

But how can I increase compressibility with filters?
Teegedeck
12th January 2006, 09:55
XviD's GMC should (in theory) help the quality of such material. But as you are aiming for low bitrates, using x264 with a high deblocking threshold could be an even better idea.

What really could help picture stability should be using VDub's Deshaker plugin or DePan as an AviSynth plugin. Don't know into how much blur that would result though, and camera movements are meant to be there, so only minimal deshaking could be used.

After stabilizing you could denoise. If you feel up to a lot of reading you should try and use a RemoveDust script, even better, a version of LRemoveDust.

For now, let's move your question to a more appropriate subforum, shall we?

P.S. By god! Why am I never invited to that kind of parties! :D
Mistwalker
12th January 2006, 10:35
XviD's GMC should (in theory) help the quality of such material. But as you are aiming for low bitrates, using x264 with a high deblocking threshold could be an even better idea.

What really could help picture stability should be using VDub's Deshaker plugin or DePan as an AviSynth plugin. Don't know into how much blur that would result though, and camera movements are meant to be there, so only minimal deshaking could be used.

After stabilizing you could denoise. If you feel up to a lot of reading you should try and use a RemoveDust script, even better, a version of LRemoveDust.

For now, let's move your question to a more appropriate subforum, shall we?

P.S. By god! Why am I never invited to that kind of parties! :D


Ah! Thanks! I'm not afraid of reading. I always google and search on forums for answers ;) So I will check that stuff up!
And by the way, there's no inventation. Just buy an airplane ticket to Stockholm Sweden, and be sure to get a ticket for the party as well! ;)

You can watch the whole video from my "one minute clip" here: www.poshette.se ;) Just press vimmel, and look down the page for: " Christmasparty á Stureplan (60 Mb)". Download and enjoy ;) I have a few more videos, but I don't have a neat fileserver to host them on, so they are offline atm :(

www.danielsundgren.se (http://www.danielsundgren.se)

That's my site ;)

Anyway, thanks for the tip! I've heard that aviSynth is really THE solution if you want some hardcore encoded material. Before I google some some stuff for it, maybe you have some neat links or similair to recomend for me?

Both for the x264 and AviSynth ;)

Thanks again!