similar to: PATCH to support theora-exp in mplayer

Derf's from-scratch alternate implementation of the theora codec is now publicly available from our subversion repository. http://svn.xiph.org/experimental/derf/theora-exp/ This exciting new codebase promises superiour performance, and the encoder is capable of higher quality output than the current represenation, taking advantage of the bitstream extension we've added to the

Hi The newest cvs let's mplayer segfault: ... Opening video decoder: [theora] Theora/VP3 Segmentation fault I don't get any infos more :( A gdb backtrace don't work. (mplayer is compile with --enable-debug=3) When will the encoder_example implemented in mencoder ??? Would be nice because the yuv-data is soooo big on the HD ;) Jens --- >8 ---- List archives:

Monty, Derf and I were discussing some theora bitstream improvements. He was curious about the spare bits in the keyframe header. There's a keyframe type bit which is always DCT_KEY_FRAME aka '0' and two spare bits. You took out a lot of similar extra bits in the VP3 code. Do you remember anything about the motivation for leaving this one in? Given the constant, were there plans

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

The list probably did not get this reply from D Richard Felker III. Having read quite a few patents I tend to agree with Richard: Software patents are very broad and even if I have not read the source code of Theora I would be surprised if it did not infringe several patents. However, I believe the argument that On2 has not been sued for infringing the MPEG-patents is a very strong argument.

http://bugzilla.mplayerhq.hu/show_bug.cgi?id=1788 INVALID http://bugzilla.mplayerhq.hu/show_bug.cgi?id=1774 INVALID http://bugzilla.mplayerhq.hu/show_bug.cgi?id=1771 INVALID > Bisecting shows that the first broken revision is 31225 > Not a bug in MPlayer. Fixed in FFmpeg SVN r25052 This one is fixed in 32492 from 2010-10-14 ... but I recently made another shocker discovery: there is a

Hi, Check it out-- another update in the space of a week: http://home.pcisys.net/~melanson/codecs/vp3-format.txt v0.4: March 2, 2004 - renamed and expanded section "Initializing The Quantization Matrices" - outlined section "Reconstructing The Frame" - moved Theora Differences Appendix to its own section entitled "Theora Specification" - added Appendix:

Hi, I havent posted to this list before, so "hi" I have been experimenting with Theora and noticed it still has the same crash bug that VP3 did. Basically, if you begin compression, and compress a blank black frame more than about twice in a row you get a Div by 0 error. I traced the fault to being in the "RegulateQ" function, and is because YUVAnalyseFrame() returns 0 for

Hello, I'm attaching IDCT MMX patch. I reused IDCT from theora-a3-MMXd.zip. It should work on 64bit X86 platform too. Here is most used functions when playing video with jet aircrafts (gripen) Ogg logical stream 310b2968 is Theora 720x480 29.97 fps video Encoded frame content is 720x480 with 0x0 offset I can play this video with like 200-300 frame drops on Athlon XP 1700+ CPU load (with

Hi, Some of you may recall that I got the VP3 decoder working with the xine multimedia player some time ago and posted a patch for anyone else to try. I really messed up when I did that since I generated the patch against some random CVS snapshot of xine-lib. I did better this time and generated the patch against the latest release of xine-lib (1.0-beta4, released today). If you

So, in preparation for some decoder optimization work planned by Rudolf Marek, the subject of the size of the registers needed in the IDCT came up. The current spec language ensures that the result is exactly compatible with the C code for VP3. This language requires that some of the arguments to the multiplies be 17 or 18 bits, because they need to hold the sum or difference of two 16-bit

Dan, In reviewing the code, derf came across the DCSearchPoints array in QuadCodeDisplayFragments(), encode.c:696. It looks like it specifies a search order for nearby coded fragments for prediction if there isn't a nearest neighbor. However, the upper search bound is defined as *0*, so the search loop (line 917) is never executed and it always falls back to the last coded fragment.

Hello, I wrote a theora video encoder based on etheora (and the examples provided with it) for Processing IDE (processing.org). I have some problem with the quality of encoded frames. eg. http://poux.be/tmp/movie.ogg And when I play the movie with mplayer or totem, the video resolution is changed from 640x480 to 854x480 (when i use ETHEORA_ASPECT_NORMAL in etheora_enc_setup). And if I try to

Hi, I'm attempting to decode Theora videos on a PowerPC running a Linux 2.6.19 kernel. The version of GCC I'm cross-compiling from is 3.4.4. The software versions I'm running are: libogg-1.1.3 libpng-1.2.20 libtheora-1.0beta1 libvorbis-1.2.0 These are all the latest I was able to download. Here's a back trace I got while running "dump_video" under

I've just committed an image flip for compatibility with VP3 lossless transcode. Thanks to mau and derf for verifying that this was needed. It's a little hacky on the decode side; suggestions for improvement are welcome. Since this is a bitstream change, and we're still a ways from having a complete spec (which is the gating item for beta 1 and the bitstream freeze) we're

Okay, thanks to some stubbornness on my part and helpfulness on the part of people on this mailing list, I got the Ogg Theora alpha compiled up and installed and running. Yesterday, I went to the Prelinger archives (the public-domain video archive at www.archive.com) to find a high-quality original to re-encode as a test. The encoder worked just fine, and playback as well, and I thought I'd

hi i am new to linux while installing mplayer [gopinath at localhost Desktop]$ rpm -ivh mplayer-1.0-0.37.rc1try2.el5.rf.i386.rpm mplayer-fonts-1.1-3.0.rf.noarch.rpm warning: mplayer-1.0-0.37.rc1try2.el5.rf.i386.rpm: Header V3 DSA signature: NOKEY, key ID 6b8d79e6 error: Failed dependencies: libaa.so.1 is needed by mplayer-1.0-0.37.rc1try2.el5.rf.i386 libcaca.so.0 is needed by

I'm pleased to announce the alpha 3 release of the theora reference implementation. http://theora.org/files/libtheora-1.0alpha3.tar.bz2 http://theora.org/files/libtheora-1.0alpha3.tar.gz http://theora.org/files/libtheora-1.0alpha3.zip The main differences over alpha 2: The encoded image has been flipped to match the sense used in VP3, with the origin at the lower left.

I'm pleased to announce the alpha 3 release of the theora reference implementation. http://theora.org/files/libtheora-1.0alpha3.tar.bz2 http://theora.org/files/libtheora-1.0alpha3.tar.gz http://theora.org/files/libtheora-1.0alpha3.zip The main differences over alpha 2: The encoded image has been flipped to match the sense used in VP3, with the origin at the lower left.

Hi, I'm wondering how I can make my patched up mplayer work with other MPlayer frontends, such as mplayer-plugin, GMPlayer, SMPlayer and KMPlayer. When I play a video using mplayer normally with: mplayer video.ext, It detects the compiz video output and works fine, however when it is called from other players (AFAIK, it just creates a window then asks mplayer to display in it) with mplayer