similar to: MMX IDCT for theora-exp

Hello, Here is my first speedup patch. Like 10-11%. No IDCT yet. Please feel free to comment my code or even better think about improvements. :) I belive my routines are not so bad, maybe one day they will be even more faster. What needs to be optimized is the loop filter fuction. I have no ideas now how to do it. It does not leave much space for parallel stuff, copying memory from lot of

Hello, Here is my first speedup patch. Like 10-11%. No IDCT yet. Please feel free to comment my code or even better think about improvements. :) I belive my routines are not so bad, maybe one day they will be even more faster. What needs to be optimized is the loop filter fuction. I have no ideas now how to do it. It does not leave much space for parallel stuff, copying memory from lot of

Hello, I would like to announce the semi-optimized oc_state_loop_filter_frag_rows It gains like 7% speedup. Unfortunately it has some issues: 1) wont compile on 64bit (I will fix it later hopefully) 2) is not yet fully optimized (instruction stalls) Here are the results. CPU: Athlon, speed 1466.91 MHz (estimated) Counted CPU_CLK_UNHALTED events (Cycles outside of halt state) with a unit mask

Hello, As we discussed with derf some time ago, it seems it is not neccessary to enforce "forward" order of dct_coeffs. This patch gains .99366902855226196000% so approx 1% speedup. Meausurement method: time nice -n -19 ./dump /mnt/disc4/theora/unix/gripen.ogg > /dev/null Ogg logical stream 310b2968 is Theora 720x480 29.97 fps video Encoded frame content is 720x480 with 0x0 offset

quite some speed improvement indeed. attached the updated patch to apply to svn/trunk. j -------------- next part -------------- A non-text attachment was scrubbed... Name: theora-mmx.patch.gz Type: application/x-gzip Size: 8648 bytes Desc: not available Url : http://lists.xiph.org/pipermail/theora-dev/attachments/20040824/5a5f2731/theora-mmx.patch-0001.bin

Hi. Has anyone tried http://svn.xiph.org/branches/theora-mmx this code on Win32 ? I can compile it with very small modification, 304c304 < ogg_int16_t *const temp= (ogg_int16_t*)align_tmp; --- > ogg_int16_t *const temp= (int16_t*)align_tmp; but outputs seem terribly broken. -> ex. http://mycomputer.cc/temp/mmx-out.ogg GCC version is 3.4.2. $ gcc --version gcc.exe (GCC) 3.4.2

Hi, Attached is a patch against 1.0alpha7 to speed up Theora decoding. It is about 15~20% faster in my test. It consists of following things: * MMX loop filter based on Rudolf Marek's patch in http://lists.xiph.org/pipermail/theora-dev/2005-August/002838.html * MMX IDCT based on Rudolf Marek's patch in http://lists.xiph.org/pipermail/theora-dev/2005-July/002816.html and the code in

Hi all, I'm trying to compile asterisk on the mainframe (s390 / s390x) and I am running into issues. I was wondering if somebody could give a hand? I'm thinking that I should be able to do this. I have noticed that Debian even has binary RPM's out for Asterisk now. I'm trying to do this on SuSE SLES8 (with the 2.4 kernel). What I see is, an issue that arch=s390 isn't

(i hope this is correct m.list) Hi, there is a small compiling problem for mingw when compiling on libogg.. in include/ogg/os_types.h : ogg_int64_t, ogg_int32_t, etc are defined correctly on cygwin and MSVC/Borland but not on mingw... i have attached a patch that will fix this problem (i hope it attaches correctly) thx, Nehal --- os_types.h.old Fri Jul 19 02:25:52 2002 +++ os_types.h Tue

When using the IDCT routines, the C version [ lib/idct.c: oc_idct8x8_c(ogg_int16_t _y[64],int _last_zzi)] in libtheora 1.1.1, the decoded image is garbled. Is it functionally equivalent to the MMX optimized version [lib/x86/mmxidct.c: oc_idct8x8_mmx(ogg_int16_t _y[64],int _last_zzi)] ? I used some of the Theora video files from here: http://wiki.xiph.org/index.php/List_of_Theora_videos for

Hi The Theora specification states, in section 7.9.3 ("The 1D Inverse DCT") steps 14-16: 14. Assign T[5] the value T[4] - T[5]. 15. Truncate T[5] to a 16-bit representation by dropping any higher-order bits. 16. Assign T[5] the value C4 * (-T[5]) >> 16. However, the relevant section of code in the reference decoder (lib/dec/idct.c line 50) is:

[Repost, maybe it will get noticed with a better subject] So now beta 4 is out is there any chance you guys will have time to review some of my patches? Here's a simple one. It just adds the standard integer typedefs for EMX GCC. I've flattened the structure using #elif's so it doesn't get a level deeper for every platform added but the result should be the same. I realise

Hi all, Just a stupid question The IDctSlow function on file idct.c has this line : ip[0] = (ogg_int16_t)((_Gd + _Cd ) >> 0); The ip[0] , _Gd and _Cd are of type ogg_int32_t My question is: The result of (_Gd + _Cd) can be a number with more than 16 bits ? (yes, it can be because they are int32, but the algorithm could guarantee something about that... I dont know...) If

Hi all, My Machine environment is Clang-2.8-svn on Linux-x86. When I build ffmpeg-0.6 using Clang, error output: CC libavcodec/x86/mpegvideo_mmx.o fatal error: error in backend: Ran out of registers during register allocation! Please check your inline asm statement for invalid constraints: INLINEASM <es:movd %eax, %xmm3 pshuflw $$0, %xmm3, %xmm3 punpcklwd %xmm3, %xmm3

Here is a patch that gets the theora_static.dsp project for VC6 building again. Aaron -------------- next part -------------- Index: win32/theora_static.dsp =================================================================== --- win32/theora_static.dsp (revision 13945) +++ win32/theora_static.dsp (working copy) @@ -41,7 +41,7 @@ # PROP Intermediate_Dir "Static_Release" # PROP

Hi Pawel, can you please pull this dragonegg patch into 3.2. I am the code owner for dragonegg. Thanks a lot, Duncan. On 28/11/12 13:44, Duncan Sands wrote: > Author: baldrick > Date: Wed Nov 28 06:44:50 2012 > New Revision: 168787 > > URL: http://llvm.org/viewvc/llvm-project?rev=168787&view=rev > Log: > Add support for GCC's vector copysign builtins, fixing

On Fri, Jun 17, 2011 at 4:22 PM, Evan Cheng <evan.cheng at apple.com> wrote: > > On Jun 17, 2011, at 3:42 PM, Eli Friedman wrote: > >> On Fri, Jun 17, 2011 at 3:08 PM, Evan Cheng <evan.cheng at apple.com> wrote: >>> Hi all, >>> >>> I'm proposing integer saturation intrinsics. >>> >>> def int_ssat :

In order to compile the latest Vorbis library on the Macintosh, the change appended to this message needs to be made to os_types.h.in. Then, anyone who wants to actually build it must first copy os_types.h.in to os_types.h by hand, since MacOS does not include a command line and thus cannot run configure. It really bugs me that the whole "platforms which don't support configure

After I got the libshout problem taken care of, I tried installing installing ices. It gave the following error: metadata.c:55: error: 'fd_set' undeclared (first use in this function) I searched the internet for fd_set and found that select uses it, which needs sys/time.h, which wasn't included in metadata.c, so I added #include <sys/time.h> with the other includes, and it seems

Good morning in the Lord Regarding the port of libtheora1.1beta3 for OpenBSD for amd64 and the problem I described at: http://lists.xiph.org/pipermail/theora/2009-August/002640.html Attached is a patch for libtheora/patches/patch-lib_x86_mmxencfrag_c I can play videos with it. ?Does it work for you? Best regards -- Dios, gracias por tu amor infinito.