similar to: low-memory vorbis decoding

Hi Is there any Altivec optimized libVorbis implementation source code out there ? The only thing I'v found is that message: http://lists.xiph.org/pipermail/vorbis-dev/2003-October/007835.html but the link is dead, so the source code is lost (forever ?). I need to decode from 10 to 30 ogg files on my PS3 on the fly (files are already in memory, so I'm not I/O bound) and do something

Firstoff, let me say what a mind fsck the Cell SPU can be. It's really not that hard an architecture to get one's mind around, but I can see how it becomes a compiler writer's nightmare. And I'm attempting to write a SPU backend. And it's going slowly. Here's my problem: The SPU's registers are all 128-bit vector registers. That's their native mode. They can be

I was able to resolve my previous question about dealing with custom loads/stores, and following Chris' suggestion, the IBM Cell SPU backend can generate code for "int main(void) { return 0; }" without crashing llc. There's a lot of work still to be done... like getting frame offsets correctly computed and hauling in the raft of intrinsics that the Cell SDK defines. Three quick

On Jan 9, 2007, at 10:01 AM, Scott Michel wrote: > I was able to resolve my previous question about dealing with custom > loads/stores, and following Chris' suggestion, the IBM Cell SPU > backend > can generate code for "int main(void) { return 0; }" without crashing > llc. There's a lot of work still to be done... like getting frame > offsets correctly

Hi All, Currently I am investigating how interesting OGG is for me. The most important requirements are: - Decoding on embedded hardware, ARM7 or ARM9. - Mixing multiple audio streams/files on embedded hardware First of all how difficult is it to decode OGG on an ARM7/9 processor? I read that OGG decoding needs floating point support? Secondly I would like to know how many MIPS are needed to

Hi, I'm a Pocket PC developer and have created a audio translator application on this platform. I currently make use of an MP3 decoder engine, but due to heavy licensing fees I'm thinking of switching over to a patent free format. Vorbis presents the best approach. I read that tremor decoder has been especially optimized for embedded devices. I'd like to make use of this and

Hi All, I am planning to implement Ogg Vorbis Decoder on a 24 bit DSP. I have following doubts: 1) What is min and max bitrate? 2)What is max Audio Packet size ? 3)What is the max size of setup header? 4)Any idea how to start for making a 24Bit fixed point reference code? Shall I start with floating point or Tremor or Tremor Low Mem Version? 5) What window sizes in Ogg Vorbis are normally

Hello all Can anyone point me to some form of description for the fields in the following structures : 1/ vorbis_dsp_state 2/ vorbis_block Thank you. regards ~previr _____________________________________________________________ Previr Rangroo STMicroelectronics Associate Systems Lab Engineer Plot No. 2 & 3, Audio Competence Center Sector 16A,

Hello all Can anyone point me to some form of description for the fields in the following structures : 1/ vorbis_dsp_state 2/ vorbis_block Thank you. regards ~previr _____________________________________________________________ Previr Rangroo STMicroelectronics Associate Systems Lab Engineer Plot No. 2 & 3, Audio Competence Center Sector 16A,

Hi, While following the developer mailing list, I came across "tremor-lowmem" version. I did some search of it in Xiph.org and "tremor" source code but wasn't able to find it. I would like to know if there is any separate thread for the "tremor-lowmem" version as we are working on the fixed point implementation of Vorbis code and we are looking forward for

We've made a little change that changed the output of vorbis is there a way to check the accuracy of the output against the original output? I also asked this question in the irc ... Thanks, Tal.

On Aug 13, 2007, at 9:11 PM, Chris Lattner wrote: > Nope, passes work within a module, they can't create/delete them. So there is no possibility to write a pass to arrange functions and globals in a different than the given way? No way to partition the structure new? I would really like to know how code is generated for heterogeneous architectures like Cell? I thought they use a

Jerome: No, there are no plans to JIT to SPU. That's considerably more complicated -- you'd have to figure out when to JIT to the SPU and live with all of the constraints that the SPU imposes (data reformatting, r/w DMA, ensure your code lives in 256K unless you can manage to interface with the virtual I-cache work.) Basically, it's not trivial and it doesn't quite fit into the

Hi, Tis is kiran. I ve a project in which v have to cross compile the source code of ogg vorbis audio decoder onto EDB9302 ARM board.. Can u pls tell me the steps how to proceed or lead me to a source whr i can find the procedure... Thank u -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi vorbis experts! I'd like ot write application under Symbian that use theora as video codec & tremor as an audio one. I played at first with libogg & theora on PC, then successfully ported them both. Next I decided to port Tremor but I found that it use its own files from Ogg library. The API is almost identical, so I tried to bind the Tremor with upstream Ogg library (it actually

Hello > Is there additionnals information to provide to the linker when > compiling llvm on mac os x? Do you have libffi installed somehere? > > > The second question concerns Yellow Dog Distribution(6.2) on CellSPU > processor. Does lli support JIT compilation on CELL? No. As far as I can see, there is no JIT for SPU. -- With best regards, Anton Korobeynikov. Faculty of

Hi, I'm yet working on the LLVM ExecutionEngine portability (2.6 release version) and I get two different problems depending on the platform. The first problem concerns compilation on MacOs X (10.5.5) with an X86 processor, when trying to compile my own project containing the ExecutionEngine class and the linker class. I get links problem with "_ffi_type_sint16",

libvorbis 1.3.6 has been released. This release fixes several vulnerabilities, including CVE-2018-5146, that could allow code execution from a specially crafted Ogg Vorbis file. * Fix CVE-2018-5146 - out-of-bounds write on codebook decoding. * Fix CVE-2017-14632 - free() on unitialized data * Fix CVE-2017-14633 - out-of-bounds read * Fix bitrate metadata parsing. * Fix out-of-bounds read in

libvorbis 1.3.6 has been released. This release fixes several vulnerabilities, including CVE-2018-5146, that could allow code execution from a specially crafted Ogg Vorbis file. * Fix CVE-2018-5146 - out-of-bounds write on codebook decoding. * Fix CVE-2017-14632 - free() on unitialized data * Fix CVE-2017-14633 - out-of-bounds read * Fix bitrate metadata parsing. * Fix out-of-bounds read in

Hi, attached is a second try for the bigstack patch for SPU, with testcase. It is essentially the patch committed as 97091, and reverted as 97099, but with the following additions: -in vararg handling, registers are marked to be live, to not confuse the register scavenger -function prologue and epilogue are not emitted, if the stack size is 16. 16 means it is empty - there is only the