search for: bjoern_rasmussen

Hi I noticed a crash issue when I passed the following values: celt_mode_create(96000, 258, &e); CELTMode->mdct.kfft[0] is not initialized after calling?clt_mdct_init() and when?celt_mode_destroy() is called it tries to dereference this value in kiss_fft_free(). -- Bjoern Here's the callstack: !kiss_fft_free(const kiss_fft_state * cfg=0x00000000) ?Line 650 + 0x3 bytes

Hi Is there a way to estimate the number of bytes per second from the information passed in the th_info-struct to the Theora encoder's th_encode_alloc()? I'm trying to be able to give users a rough estimate of the file size needed to encode with the setting provided to th_info-struct (frame width/height, fps_numerator/fps_denominator, target_bitrate and quality). -- Bjoern

Hi I'm trying to stream a Theora encoded video over the internet using UDP. Since Theora typically produce an encoded frame of 10 KBytes in my scenario I need to split up this frame in smaller chunk which are then sent to clients. This, however, makes my application very vulnerable to packet loss, so I'm wondering if there is some way to make the Theora encoder produce many small frames

...rted to look at reducing complexity by removing all perceptual filters in the encoder. It sounds ugly but my fallback is GSM 610. I'm open to any other ideas to cut CPU at the expense of quality. -greg. <p>----- Original Message ----- From: "Bjoern Rasmussen" <bjoern_rasmussen@hotmail.com> To: <speex-dev@xiph.org> Sent: Thursday, December 18, 2003 5:19 PM Subject: RE: [speex-dev] SmartPhone ARM <p>> Hello Greg > > If money isn't a problem Intel has an optimized compiler for eVC and XScale > processors > > http://www.intel.com/softwar...

...s can be used to improve K6-2 performance through 3DNow. Cheers Bjoern D. Rasmussen <p><p><p>>From: Jean-Marc Valin <jean-marc.valin@hermes.usherb.ca> >Reply-To: speex-dev@xiph.org >To: speex <speex-dev@xiph.org> >CC: "Bjoern D. Rasmussen" <bjoern_rasmussen@hotmail.com> >Subject: Re: [speex-dev] Real time audio encoding - cpu usage >Date: Mon, 02 Dec 2002 19:54:25 -0500 > > > I've developed a p2p voice application using Speex and I'm looking for >ways > > to reduce Speex's cpu usage. My K6-2 300 MHz can't ev...

Hello Greg If money isn't a problem Intel has an optimized compiler for eVC and XScale processors http://www.intel.com/software/products/compilers/techtopics/PCA_Optimization_WP.pdf If you have any luck getting the eVC compiler closer to realtime I'd really like to know. I'm still far from realtime when using Speex 1.1.3 on a HP iPAQ (Intel pxa255). Best regards Bjoern D.

Hello there I've developed a p2p voice application using Speex and I'm looking for ways to reduce Speex's cpu usage. My K6-2 300 MHz can't even encode 16 bit audio at 16KHz in realtime using Speex in narrowband mode. I've tried to lower the quality to 2 and complexity to 2 also but it's still way too slow. Which other ways are there to make encoding faster? Is there a

As long as the number of mails doesn't exceed what it is now I see no need for a separate mailing list. <p>>From: giles@xiph.org (Ralph Giles) >Reply-To: speex-dev@xiph.org >To: speex-dev@xiph.org >CC: jm@xiph.org, Darryl Davidson <ddavidson@talisman-intl.com> >Subject: [speex-dev] speex user list? >Date: Sun, 24 Aug 2003 12:59:01 -0400 > >Hi all, >

Hello there Are there anyone who has translated the AT&T SSE intructions into Intel syntax (so it can compile in VC++) and willing to share their code? Best regards Bjoern _________________________________________________________________ Få alle de nye og sjove ikoner med MSN Messenger http://messenger.msn.dk --- >8 ---- List archives: http://www.xiph.org/archives/ Ogg project

Hi there According to the manual SPEEX_SET_COMPLEXITY sets the allowed CPU usage for the encoder. I've tried changing the complexity from 1 to 10 to see if I were able to notice any difference in sound quality but I have not. Shouldn't the effect of a high complexity increase the sound quality? Kind regards Bjoern _________________________________________________________________ Log

HiI'm trying to run CELT on Win32 but I'm running into some corrupted stack errors when using alloca(). When get_required_bits32() (in file cwrs.c:308) is called from get_required_bits() (in file cwrs.c:328) the 'K' parameter is 1 which means that the uint32 which is allocated on the stack only has 3 bytes instead of 4. This results in a corrupted stack in the following call to

Hi Is there any reason for the second parameter (the 'data' parameter) of celt_decode() not to be a 'const' type? It doesn't look like CELT modifies it and typically the encoded data will be read from a const-buffer of a packet structure. -- Bjoern _________________________________________________________________ More than messages?check out the rest of the Windows

Hello Cesar I'm using Speex on a PPC2002 and PPC2003 with no problems. For tune-up remember to define the FIXED_POINT macro in Project->Settings in eVC. With this setting you ought to be able to at least decode in realtime while using debug-mode. Kind regards Bjoern D. Rasmussen >From: "cesarbremer@raseac.com.br" <cesarbremer@raseac.com.br> >To: speex-dev@xiph.org

Hello there I'm having trouble decoding speex frames when using 32KHz audio and quality setting 4. If I encode three frames and then decode the three frames then the speex_bits_remaining() still reports that there are bits remaining. All other band modes and qualities reports that the buffer is emptied. Here's an example that shows 4 bits remaing in the buffer after the frames have

Hello The st->zeta pointer isn't freed in the speex_preprocess_state_destroy() function of the preprocess.c file (alloced in line 167). It's in Speex 1.1.4 by the way. I'm trying to make the denoiser work with my application and has got reasonable noise reduction after applying the denoiser. I, however, haven't been able to find any information of what the purpose of