@ kvcd,
Quote:
-vhelp |
Quote:
|
Quote:
I mean, if your tool was gonna give us a few numbers, it could be used in other toolings or calculations, and we could :hammer: incorporate it somehow into our apps for strength :idea: -vhelp |
Quote:
Maybe a combination of Bitrate Viewer + DVDPatcher + VBVPatcher + MPEGanalizzatore + mpegprop :D But then again, that would take some time to build, as the full MPEG bit stream pattern has to be decoded, organized and displayed. That would be a usefull application, and it would really be a true MPEG analyzer ;) -kwag |
..about that DVD is was just talking about...It played perfectly, it tested it for two hours...definatly a problem with bitrate viewer...
|
There is already (beter to tell "will be") alternative to BV: MPEG Validator (information post on doom9), but there is no published code or binaries of this, for unknown reason :?
Is there someone able to answer my question about SVCD with DVD-VBV value :?: |
Quote:
A way to get rid of bitrate peaks could be an automated process like the following: analyze m2v stream and find the over-standard spots -> break the stream at the nearest I frames -> run rejig on the over-bitrate segements -> splice all the segments back marcellus |
Quote:
This way, we can just set a MAX bitrate, and anything that is >= to that bitrate, is re-encoded with that MAX bitrate. I think this would be a simple modification to ReJig. Then, we can call it ReClamp :mrgreen: -kwag |
And with this aproximation, Kwag, will quality suffer?.
I mean, after reencoding with Rejig (or it doesn't really reencode?), and lowering bitrate without adjusting Q, won't these scenes suffer of lack of bitrate?. |
Quote:
Only if you were to slow motion, then you would see some frames with blocks. This would have to be tested :!: -kwag |
Quote:
But this is not the way we will see them later, isn't it :wink: |
I dont know...I am not convinced that their is any program with the VBV...all of the streams that I have made have played perfectly....I think the program is where Bitrate viewer establishes the baseline...something in ffvfw conflicts with Biterate viewer or has a difficult time establishing a true baseline...this must be related to the VBV issue....
|
Quote:
marcellus |
Quote:
From my first post ever on this forum... :roll: Posted: Wed Jan 28, 2004 12:21 pm http://www.kvcd.net/forum/viewtopic.php?t=8835 Quote:
|
Quote:
It would basically "clip" the MAX bitrate, and make it standard. Worth a try :cool: -kwag |
Quote:
marcellus |
Quote:
The way ReJig works, is that it recompresses frames in order to achieve a destination size. What I proposed, is a modification to ReJig, so it "clips" high bitrate peaks only. So it's not the same ;) -kwag |
Well, just made the test with ReJig at 100% (no compression). It didn't work :!:
I encoded a small clip with ffvfw (anamorphic 720x480) which peaked at 10,553Kbps, and after processing with ReJig, the peak is still 10,553Kbps. So ReJig doesn't clip MAX bitrate to DVD standard. -kwag |
Quote:
marcellus |
Quote:
Rejig is based on M2VRequantizer, and I was looking for " any way to use a requantizer tool like M2VRequantizer to post-process the FFMPEG output that overlaps max bitrate." I was referring to "requantize when needed". To requantize the whole thing was an already known process ;) Bilu |
Site design, images and content © 2002-2024 The Digital FAQ, www.digitalFAQ.com
Forum Software by vBulletin · Copyright © 2024 Jelsoft Enterprises Ltd.