similar to: Bitrate peeling on existing (older) streams ?

Hi: A friend asked me a question that I was unable to answer, so I'm posting it here. Can files created by the beta4 encoder be peeled down when that becomes available, or is the ability to encode peelable files also not implemented? My friend wants to know if they should switch over now or hold off until this becomes possible. Geoff. --- >8 ---- List archives:

first, congrats to monty and the whole crew for getting this close to 1.0. it's a monumental achievement reflecting a huge amount of hard work -- kudos! econd, i know the bitrate peeling feature has been pushed back until after 1.0 is out. but i'm wondering -- will oggs created with a 1.0 encoder be peelable with an as-yet-unreleased utility, or do "peelable oggs" have to be

I was up late last night, and i had a thought on peeling that would probably provide 100% accurate peeling data to a decoder, but take a maximum of 1101 times normal time to encode (taking into account the range from q-1 to q10 ). ay you want to encode a track at q10, but you want it to be peelable. the 1101 encoder would encode from the source at every quantifiable level (since there are 2

Hi All, Let me ask this question of the group: When bit rate peeling becomes available, how will the quality of the peeled Vorbis file compare to a file encoded at the target quality directly from the original? So, for: a.wav --> b.ogg (at q6) --> c.ogg (at q2) a.wav --------------------> d.ogg (at q2) how are c.ogg and d.ogg likely to compare in terms of audio

Not vorbis-related, just I think I found a similar technique being used... The description of the MPEG-2/SVCD plugin on the nero site says that it can encode exacty to the size of the CD (to maximize quality given a size restriction). It also says (in a separate point) that it uses two-pass VBR compression. >From that I guess they do something like encoding a bigger-than needed file and then

>> Is bit-peeling going to be real (or just a rumor forever)? > Apparently the RC3 streams are capable of being bit peeled, however the > tool to do so was looking likely to be quite complex. I believe the plan > was to have RC4 produce streams that left better hints for the peeling > tool, so as to make the tool simpler and faster, but I doubt we'll see it > until

Hey y'all -- I heard some discussion a while back about "bitrate stripping" to reduce filesize without re-encoding ... has this gone anywhere? Too lazy to write a re-encode script, Nate <p> --- nate - nmt2002@columbia.edu cell=917 445 6830 aim=mediumnate abolishthe.us/gpgpublickey Nobody for president. --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg

question: would it be possible to mess around with icecast2s' relay ability to kind of cheat a peelable streaming thing? eg: client needs a bitrate lower than what is available, client tells server this, server relays to itself, or other available server, at a required bitrate, server forwards new stream info to client and so on. <p>--- >8 ---- List archives:

Hi all, I recently started to study the Ogg Vorbis codec and found an interesting feature called bitrate peeling [1]. Do you know where I can find more information on this topic? E.g., how is the actual peeling being implemented, what are the performance results in terms of resulting quality, what are the requirements for bitrate peeling (can it be applied to any ogg vorbis stream), ...? Also,

Monty, You helped me out quite a bit the other day, but I just wanted to make sure I understand something. The "ideal" way to do bit rate peeling is to have the encoder set the file up to be conducive to the peeling process, and the streamer would be the device that actually does the peeling. Am I correct in assuming, then, that the decoder would think that the file it is

Hello all, Just a quick note to let you all know that I have placed a bounty on Lauchpad to get bitrate peeling added to Vorbis. It is a feature that I think we would all like to have, and would probably pay something to get, but it hasn't been done. My request to you is to add to the bounty. I have seeded it with US$20, which is not enough to motivate a developer to get it done, but I am a

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello vorbis, Wasn't really answered in my first post about this subject (although people did convince me to do a debian/rules binary, which i've done and am VERY impressed with RC3 (played a -q3 file to a mp3 dude secretly, and he says "whoa! 112kbits! give me your new mp3 encoder" (winamp3 doesn't show the changing

Hi all, First up, this is not a proposal on how to do it, but rather on how to get it done. In the latest thread it was mentioned that it was most likely that either Monty or Segher would be the most likely people to implement this code. It was also stated that this is not their priority at the moment. I can only see two solutions to this problem: 1. Find someone else with the knowledge and

Hi all, I'm looking into congestion control for Vorbis RTP and I'm wondering if it's not too early to define a mechanism which would help bitrate peeling. The client can send a standard receiver report stating the interarrival jitter and packets loss. Once a certain jitter/loss point is reached the server peels off a pre-determined bitrate fraction from the stream, eg 128k would

Given all this talk of peeling lately, I thought I'd try out a method I've been thinking about for a while now. It goes something like this: * Peeling is achieved by dropping some of the residue. * The encoder indicates how much of the residue to retain (e.g a number of stages, 3 bits in the stream per packet, non-standard!). * The decoder (peeler) copies the contents of packets except

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello vorbis, Is bitrate peeling implemented into RC3? (i'm guessing not due to the fact that none of the tools seem to have any information about that) Still, looking forward to checking out the quality improvments (once the Debian packages become available... (i've compiled it already on one of my potato boxes, but the newer

No offense, Segher, but the output quality of this thing is awful. =) I'll disregard the fact that, at least with *my* compiler, the source tarball I downloaded reduces every packet to zero bytes, which isn't terribly interesting. I decided to set the byte reduction to something constant: I started by dividing each packet's size by 2 just to see what would happen. The resulting ogg

Hey, Maybe you guys remember us, I'm from the Neuros forums. I've got to say, having a player that supports Ogg Vorbis has really turned things around for everybody. We're still struggling with higher bitrate Vorbis streams, but that is only because of our terribly underpowered DSP. Anyway, to the point of my email. Recently the discussion of bitrate peeling has been floating

Hi I read in http://grahammitchell.net/writings/vorbis_intro.html > Ogg Vorbis files support "bitrate peeling", which means you can produce > a lower bitrate file from a higher bitrate file without re-encoding and > at the same quality as if you'd encoded the file directly into the lower > bitrate from the original file. No other lossy audio codec currently > supports

Maybe anyone can give me some links about testing results of mp3Lame and Vorbis on hi bitrate (192 or >)? Cos i can find only ~128 =[[ -=-=-=-=-=-=-=-=-=-=-=- SaSHa SHokovic E-mail: sh0ck@delfi.lt IRC: SH0x @ QuakeNet ICQ: 67504461 .+-j!i0+:)rhZm1hNrybXuz/-*arj) '+a{ +v&{ay,rR{.n+z,z{m^+-)emw