search for: derf

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...

I was just looking at http://svn.xiph.org/experimental/derf/theora-exp/README and this is what it says about the encoder, <snip> The encoder is highly experimental. It currently generates valid bitstreams using ALL of the decoder features supported above. However, it is also currently broken, producing pretty horrible quality files with high bitrat...

When I do lmer models I only get Estimate, Standard Error and t value in the output for the fixed effects. Is there a way I get degrees of freedom and p values as well? I'm a very new to R, so sorry if this a stupid question. Thank you - Mike Mike Ford Centre for Speech and Language Department of Experimental Psychology Downing Street Cambridge CB2 3EB Tel: +44 (0) 1223 766559 Fax: +44

...ended HTML bits would confuse Asterisk when it got a reply from the script through STDIN. And still, the following works OK, although the CLI version available in AstLinux prepends some HTML: =================== pbx tmp # cat /tmp/test.php #/tmp/php-cli -q <?php echo "SET CALLERID \"Derf <123>\"\n"; ?> pbx tmp # ./test.php X-Powered-By: PHP/5.2.5 Content-type: text/html pbx tmp # /tmp/php-cli -q test.php SET CALLERID "Derf <123>" ======== /etc/asterisk/extensions.conf ==== [inside] exten => 9999,1,Verbose(Name=${CALLERID(name)} number=${CAL...

...ou building/running these tests? None of the tests (from any of the patches starting with the second) build for me on 32-bit ARMv7 with --enable-fixed-point, or even on x86. Example errors: CCLD tests/test_unit_optimization tests/test_unit_optimization.o: In function `test_fir': /home/derf/src/xiph/git/xiph/opus/build/../celt/tests/test_unit_optimization_lpc.c:58: undefined reference to `CELT_FIR_IMPL' /home/derf/src/xiph/git/xiph/opus/build/../celt/tests/test_unit_optimization_lpc.c:65: undefined reference to `CELT_FIR_IMPL' /home/derf/src/xiph/git/xiph/opus/build/../celt/...

...tests? None of the tests (from any of > the patches starting with the second) build for me on 32-bit ARMv7 with > --enable-fixed-point, or even on x86. Example errors: > > CCLD tests/test_unit_optimization > tests/test_unit_optimization.o: In function `test_fir': > /home/derf/src/xiph/git/xiph/opus/build/../celt/tests/test_unit_optimization_lpc.c:58: > undefined reference to `CELT_FIR_IMPL' > /home/derf/src/xiph/git/xiph/opus/build/../celt/tests/test_unit_optimization_lpc.c:65: > undefined reference to `CELT_FIR_IMPL' > /home/derf/src/xiph/git/xiph/o...

We're about ready to do a 1.2 alpha release from the ptalarbvorm tree, and as such it's no longer experimental. I've replaced the theora svn trunk with a copy of derf's experimental tree; please do subsequent development toward the release there. The old 1.1.x trunk is available as http://svn.xiph.org/branches/theora-1.1 if you need it. -r

Created corresponding unit test, and the optimization is bit exact with C function. --- silk/SigProc_FIX.h | 7 ++- silk/arm/arm_silk_map.c | 12 ++++ silk/arm/inner_prod_aligned_arm.h | 58 +++++++++++++++++++ silk/arm/inner_prod_aligned_neon_intr.c | 66 ++++++++++++++++++++++ silk/enc_API.c

...simultaenously? > > There is only one definition of x and it has to happen before the > > use of > > x in the phi defining y, doesn't it? > > PHIs can't depend on each other. So just to be clear, this means that all phi uses are considered to execute before any phi derfs? -Dave

ffmpeg2theora nightly builds found at http://firefogg.org/nightly/ still uses Thusnelda. Where can I get a Ptalarbvorm version for Windows? Regards

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 anyth...

Hi guys, instead of sleep, I had a thorough read of the Theora 1 Specification document last night. It's a turning into a really good document and I'll have more detailed feedback tomorrow. Cheers, Silvia. --- >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

Hi, A few questions: Is libtheora strictly backward compatible with VP3? Can I set it up to shove raw VP3 data through and trust it to decode the same way as On2's open source code did, loop filters and all? Also, is libtheora just supposed to be a C-based reference implementation? I was looking through the code and noticed a distinct lack of any kind of optimizations. Naive tree-based

Hi, The documentation for the libtheora API is a little bit sparse - for example, information about whether yuv_buffer structs should be managed by the user or the library is missing. From talking to derf, and from what I can see in the example files, the user allocates the struct but not the luma/chroma buffers on decode; and the user allocates both the struct and the luma/chroma buffers on encode. I've made some small additions to the documentation explaining this. Should I send these changes...

I''m trying to work with Users and the realize function, and it''s driving me batty. Puppet is 0.23.2. My definition looks something like: class virtual_users { @user { fred : uid => 500 ... } @user { derf : uid => 501 ... } } node base-node { include virtual_users } node "testnode.domain.local" inherits base-node { realize User[fred] } puppetd throws an error of: err: Could not retrieve configuration: Failed to find virtual resources User[fred] Do I have to realize fred in ano...

I am going to change video quality parameter frame by frame. So i find a parameter called* thisframequalityvalue* for this task. so i changed *cpi-> Configuration.ActiveMaxQ*(set "1" for half of the frames and set "63" for other half of frames)* *manually to change *thisframequalityvalue *parameter in *UpdateFrame *frame function. But quality was not changed. Why is

This is mostly for derf, but others may be interested too. Attached are the warnings (stderr log) from compling theora under gcc 3.2.3 (Debian). There quite a few. Many of them are spurious, but some indicate real bugs. In particular it seems likely we have more unitialized variables since Dan reports differing encode...

So, release priorities. I have all of derf's proposed bitstream changes accounted for in the reference encoder, if not supported in the decoder. These are going to be released as alpha 3 to get the new bitstream changes out for wider testing while we work on spec and implementations of the extensions. The remaining issue is the brok...

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 going to do...

...an about) so I'm not confident it's a valid stream, so if people who'd parse Ogg in their sleep could have a look, it would be grand. It's Theora+Vorbis+Speex+Kate+CMML. It has no skeleton as oggz merge doesn't generate one, unfortunately. Ah, and I couldn't understand what derf says about wikipedia in there, so that part of the transcript is left blank, if anyone can tell me what the sentence is, I'll update it :) http://people.xiph.org/~oggk/christmas-tree.ogv Cheers