Curious about H.263 in ffvfw
marcellus stated:
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marcellus reported some positive effects being produced by using H.263. I don't think that you can deny that it must have some effect one the stream, why else would marcellus report that it did? I am curious if Kwag (or anyone else) has tested this... Thank You.... [/quote] |
I don't get why people post something like this... :evil:
If you really are curious, why don't you test it yourself then?? :roll: There's no way that ffvfw will create that H.263... |
That's EXACTLY what I thought before I saw you already answered that.
What is the purpose of post like "did someone try ?" "I'm curious about..." Who do you thing we are ? Your servants doing dirty works for you to enjoy the results ? |
The conversation in the forum was left open ended, I am curious if anyone experimented with this setting yet. A simple "no I have not" would of sufficed...The servant thing is taking it WAY to far...
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@poerschr,
If you READ the H.263 specifications, you'll understand WHY an H.263 stream can't play on WMP, WinDVD, PowerDVD, or on your standalone player. So really, there's no sense for me (or anyone!) to test it. If marcellus was able to play it, it was because he created a standard MPEG stream. Not a H.263 stream. Edit: And yes, I did test it just for the hell of it and to satisfy my curiosity, and verified that the produced MPEG stream is identical, viewed on Bitrate Viewer. So even if you set to encode as H.263, you're still encoding MPEG. -kwag |
Thanks kwag...I just wanted to make sure that H.263 was not in some way influencing the mpeg stream.....
I understand now why you are truly the master of this site...I appreciate your direct answers to my questions... |
I'm sorry that I react so slowly, but in my rush and lazyness I didn't read this thread at his time.
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Mpeg standard matrix<Mpeg Kwag's matrix<Mpeg H.263 method Quote:
Marcellus |
Hi marcellus,
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-kwag |
Ok, to cut it short let's say that H.263 setting has a placebo effect on me :D :D
You still didn't check it visually but let's drop the issue because it starts to be boring Best regards marcellus |
The quantization type in ffvfw, h.263 vs. mpeg, defines the default quantization matrix.
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But is it possible to test the H.263 matrix in MPEG-2?
In MPEG-4 it's really good for anime, avoid blocks on edges, but also cleans the image a bit too much. I'd like to see how it compares to the Notch matrix if possible :roll: Bilu |
Selecting h.263 does nothing but select the default mpeg4 matrix, this does not mean it cannot be used for mpeg1/2 as well.
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I know, but I'd like to see feedback from others.
I'm setting up my first MPEG-2 encoding stuff and I'm on a mencoder phase right now ;) Bilu |
Hi bilu!
Well, if you ask me I'd say that I get better results with H.263. If you ask kwag or jellygoose they will say that with H.263 you will obtain the same result as with standard mpeg matrix. I dropped dead this issue since I'm not 100% sure that what I see isn't a placebo effect, I have to do some more testings. Untill then I have to keep my opinions to myself. Happy encodings anyway marcellus |
@marcellus
Maybe you ALL are right !!! :lol: :lol: :lol: From mencoder docs (also libavcodec based): http://www.kvcd.net/forum/viewtopic.php?p=64535#64535 Maybe H.263 matrix is the default in FFVFW too ;) Please try forcing MPEG matrix to see if there are differences. Bilu |
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