similar to: Multiple Feed Compression

Displaying 20 results from an estimated 3000 matches similar to: "Multiple Feed Compression"

2003 Jan 13
1
Multiple Feed Vp3
Oliver -- Your question was asked & answered on the theora@xiph.org list -- see my post: <p>-----Original Message----- From: Oliver Darvall [mailto:oliver@cura.co.za] Sent: Monday, January 13, 2003 2:38 AM To: theora-dev@xiph.org Subject: [theora-dev] Multiple Feed Vp3 <p>Hi, I have been using Vp3 for some time now to compress the video from a single video source. However, I
2002 Sep 10
1
VP3 Compressor Settings
Hi Guys, I was wondering what the idea behind the "Key Frame" settings are in the VP3 codec settings. As far as I could ascertain (from browsing through the source code) the VP3 codec ignores the lpbiPrev and lpPrev members of the ICCOMPRESS structure. My conclusion is thus that each frame passed to the codec is compressed individually and that the redundant information based upon
2003 Jul 23
2
Question about converting VP3 to Ogg Theora
As I understand it the current plan is to make it possible to losslessly transcode VP3 video to Theora video. In my experience, one of the "features" of VP3 is it drops frames in the event that there is little/no movement in a frame, or if "drop frames" is enabled, to drop frames if the data rate is getting too high. I understand that the way that VP3 does this in
2002 Oct 29
3
Simple player and encoder binaries for Windows
--- Stephane wrote: VP3 codec uses a lot of CPU for decoding. We will need some optimization because now this codec is way too slow for home uses. --- end of quote --- Actually, the Windows VP3 QuickTime codec runs just fine on a 400MHz Pentium II box, with only occasional glitches on some dodgy Celeron systems. At work, we routinely test 320x240 full-color, full-motion video on low-end boxes.
2003 Mar 09
4
Proof of Concept
Hi, So it took a little while to get here but VP3 through ffmpeg is finally starting to achieve viewable results. It partially works right now. Keyframes only. And monochrome. Oh, and the picture is upside down (something I did not realize about VP3 until I let it fly just now). Anyway, here is a picture of ffmpeg's VP3 decoder in action using xine:
2002 Sep 30
3
theora test suite
some of you may find this helpful: I've uploaded a short (5 second) raw clip in yuv4mpeg format, associated audio, and batch files to exercise the encoder & decoder examples. In addition I've included the file as compressed (test.ogg), and a longer version as well to test playback sync. Notes: to use MPlayer with the -vo yuv4mpeg option, you need to get the latest release and compile
2002 Oct 18
3
Quicktime Vs Windows encoding with VP3
I found out about vp3 from the new winamp and coincidentally i also happen to be trying to find a suitable solution to broadband streaming. I have used flaskmpeg to create a 17mb .avi file from an 82mb Mpeg 1 file and it looks great it took about twenty minutes to encode. It runs for eight minutes and the audio is also fantastic using the lame encoder. However when I try to do the same in
2002 Oct 01
4
Status?
What's the current status of VP3/Ogg integration? The CVS doesn't seem to be very active - and (maybe I'm not looking hard enough) I don't see any ogg-specific stuff here. I'm one of around 30 global techs for Indymedia, one of the last things we need for full adoption of free media formats is a free video format. We're working hard to promote Vorbis, many of the local
2003 Feb 23
6
More Missing Pieces
Hi, I am making good progress on understanding, documenting, and re-implementing VP3. I have found some more deadwood in the decoder code and I just wanted to verify that it really has no place: * Version 3.3 tables: There are 2 sets of VLCs: One for v3.1 and one for v3.3. The v3.1 set is always selected. Are the v3.3 tables in production, or will they ever be? * DC Search Points: VP3
2002 Oct 11
5
Changing video quality during encoding
I don't know how to change a video quality on the fly - I want to provide a slider with a preview window, so user could see the result immediately in this window. I tried to send ICM_COMPRESS_FRAMES_INFO to encoder or calling ICSetState() - with no success however. Am I doing something wrong ? How can I set 'lDataRate', 'dwRate', 'dwScale' parameters ? I tried every
2002 Nov 11
3
Theora vs. Nullsoft NSV
How does the Theora project differ from Nullsofts NSV project? Other than the obvious fact they use mp3.... <p><p>--- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'theora-request@xiph.org' containing only the word 'unsubscribe' in the body. No subject is
2003 Mar 05
5
VP3 IDCT
Hi, Is there anything special I need to know about VP3's IDCT? I mean besides the fact that there are separate IDCTs to handle sparse coefficient matrices. Are the IDCT functions mathematically equivalent to any textbook IDCT functions? Thanks... -- -Mike Melanson --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To
2003 Feb 13
5
Ogg MIME types scheme
Hello everybody, I hope to finish this MIME types discussion with these conclusions - it's taken enough bandwidth on these lists :). So here's a generic MIME types scheme that we all seem to be able to agree on and all that is needed for the moment. --- 1) Ogg encapsulated files: Any data that is encapsulated in an Ogg container will us the MIME type: application/ogg (as already
2003 Feb 13
5
Ogg MIME types scheme
Hello everybody, I hope to finish this MIME types discussion with these conclusions - it's taken enough bandwidth on these lists :). So here's a generic MIME types scheme that we all seem to be able to agree on and all that is needed for the moment. --- 1) Ogg encapsulated files: Any data that is encapsulated in an Ogg container will us the MIME type: application/ogg (as already
2003 Feb 13
5
Ogg MIME types scheme
Hello everybody, I hope to finish this MIME types discussion with these conclusions - it's taken enough bandwidth on these lists :). So here's a generic MIME types scheme that we all seem to be able to agree on and all that is needed for the moment. --- 1) Ogg encapsulated files: Any data that is encapsulated in an Ogg container will us the MIME type: application/ogg (as already
2002 Sep 14
4
Specific code questions
I haven't actually had many questions up to now. Despite the all-encompassing CP_INSTANCE monolith, things have been relatively easy going. Now we get into real grit: First off, CBitman looks like it has endianness issues; it's packing into host-order 32 bit arrays (the comments and symbol names seem to indicate that this was originally byte-based packing code that got upped to 32 bit.
2002 Nov 27
1
new theora list
A new mailing list has been created -- theora-codecs@xiph.org. This list should be where we discuss issues pertaining to Qucktime and Windows codec implementations, including legacy VP3 codecs for those platforms. We've done this to keep the discussions discrete and focused. There is a pressing need to maintain the existing VP3 codecs until we get Theora up and running. Anyone who is
2002 Sep 29
1
VP3 vs CPU
Hi DVD-Quality playback uses 100% CPU on my Athlon 1333 MHz. My Duron 800 can't play them. XviD uses ~25%. Does someone have few tricks for that? Stéphane Bérubé ---- sirber@webernic.com --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project homepage: http://www.xiph.org/ogg/ To unsubscribe from this list, send a message to 'theora-request@xiph.org' containing
2003 May 28
2
autoconf problem
./configure: line 524: syntax error near unexpected token `AM_INIT_AUTOMAKE(libtheora,0.0)' ./configure: line 524: `AM_INIT_AUTOMAKE(libtheora,0.0)' I'm sure I'm doing something pro-stupid, but --- my setup works fine for ogg & vorbis. autoconf ver 2.13 automake (GNU automake) 1.4-p4 if that matters hey let's put tool version numbers into the README -dan
2002 Aug 06
1
VP3 Patch For xine
Hi, Since a number of people are eager to try out the native VP3 decoder in xine, I have made a patch available, bz2-compressed: http://www.pcisys.net/~melanson/codecs/xine-vp3-decoder-patch.bz2 To work with this patch: 1) Get the latest xine-lib from CVS. Visit this page for more details: http://sourceforge.net/cvs/?group_id=9655 The module name is xine-lib, but you will also need