similar to: libvorbis 1.3.6 - critical security update

Hi all, I'm porting the Tremor code to an ARM platform. Unfortunately, we didn't use the low mem branch code for CPU performance consideration, and now I find the memory use in it is huge for the embedded system. After looking into the code, I found the header parse, especially, the codebook unpack part takes a lot of memory. Tremor decodes the codebooks to a cache to store

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

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

Hi, I'm experiencing a serious problem when trying to replace libvorbis with tremor (from svn): premitting that I don't want to use the ov_* functions, calling vorbis_synthesis_headerin() on the 3 initial packets works with libvorbis but immediately fails with tremor. At first sight it seems that the function in tremor either receives a leading \n before every header (that

I have a wav file which has been converted to an ogg file with libvorbis via ffmpeg. However I've tested a few files just to make sure. I run a standard while loop to using ov_read to pull all the data out of ogg file. Using 4096 as the size to read each call. Watching my debug logs it is reading 2048 bytes each call. When I load the wav file the data chunk for the pcm data is 167680

Hi all: I am a newbie to vorbis, and I want to develop vorbis decoder onto TI c6701 evm board. And I try the tremor code and libvorbis and the code from http://www.xiph.org/archives/tremor/200210/0001.html . But all of them stll work good in MSVC but terrible in c6701. I dont know wher the problem is??Problem of code or problem of memory allocation?? it decodes almost noise,.... When I

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

Hi, Given CVE-2018-5146, I wanted to update the tremor package we have in Buildroot (an embedded Linux build system), and I noticed an inconsistency between the tremor git and svn repos. We are currently using r19427 from svn, but the fix for CVE-2018-5146 was only added to git, so I wanted to move to that. Comparing the two repos I noticed that r19427 is missing from the git repo. r19427 is:

Thanks, for all that help from this list. I need only the decoder to implement. I will compile the tremor projekt next week and post my success or fail. If it works fine I will sell the boards on ebay, if this is ok? It would then be a player modul for ogg vorbis and wave with midi input. Best regards Erik -----Urspr?ngliche Nachricht----- Von: mlrsmith@gmail.com [mailto:mlrsmith@gmail.com]

Hi, I study electricity in the University of Applied Sciences of Western Switzerland and I just began my diploma work: an embedded Internet Radio Receiver. I want to use the Tremor Codec on a ARM7TDMI uc (Samsung S3C4510B). And I need to convert the decoded Vorbis signal in an I2S bus signal (clk, word-select, and data) with a CPLD (Xilinx SPARTAN II) It will be helpfull if someone can explain

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

Hello all, I'm a newbie to the vorbis code, but I'm working on using it for a senior project. I need to create an ogg player in C for an Analog Devices Blackfin board. I'm not even sure where to start looking in the code for the functions that I need to use. Any direction would be really helpful - I can provide more specifics about the project if it helps. Thanks, Robert

Hi! I'm new to this list. I work at a game development company, and we are considering Ogg Vorbis for the audio in a cell phone game. Does anyone here have any figures or educated guesses on how much CPU power the decoding requires? I guess Tremor is the decoder to use, as the CPU doesn't have a floating point unit, but will it be possible to use it for playing background music in a

Hi all, I'm very new to Ogg, and am learning about it in an attempt to stream it from a CF card through a microcontroller. This particular setup requires me to move parts of the file from the CF card to the microcontroller buffer, effectively making the file like a data stream. Also, should this question be directed at the Tremor group instead since that is the codec I'm using? It

hi, could someone please apply these to Tremor svn? 0001-update_symbols.patch there are 3 public symbols in the headers, which are missing in the linker script and thus marked as private again. This causes issues for e.g. gstreamer (https://bugzilla.gnome.org/show_bug.cgi?id=616194). 0002-pkgconfig.patch this adds a pkg config file You probably also want to do something like Index:

Hi there. Would some kind soul please refer me to instructions for building an arm-elf-gcc that'll compile the Tremor sources? (In particular, what sources to get and where, and what to build in what order.) I'm developing on Debian Woody i386, but I'll happily take whatever advice you can send my way. I'm no expert in the field of compiler building, but I can't seem to

As to tremor fixed-point implementation, i got several questions, and hopefully some one can help me out. Thanks a lot! 1. For DSP chips with small and limited memory, how much memory do we really need for saving all codebooks before we start to decode audio packets? Can the bit-rate give us some clues? Is there some simple guidelines for this? 2. For CRC error protection, it seems to me that

Can anybody point me at any resources that would explain how to optimize mdct_backward for a cpu with a fused multiply-accumute unit? >From what I understand from responses to my older postings, Tremor's mdct_backward could be rewritten to take advantage of a muladd. My target machine can do either two-wide 32x32 + Accum(64) -> Accum(64) integer muladd or eight-wide 16x16 + Accum(32)

hi, i am trying to load vorbis tool on to my arm board EDB9302 , till now i have cross compiled libao, libogg, libvorbis, flac, speex and vorbis tool. when i run the command line arm-linux-ogg123 with some sample ogg format file on my arm board it gave *"Could not load default driver and no driver specified in config file : Exiting"* , please help me to over come this error.

Attached several patches that I have been using to the tremor tree. Please review and apply as you see fit. Regards. -- O.S. -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-os.h-change-elif-_WIN32-to-elif-defined-_WIN32.patch Type: text/x-patch Size: 728 bytes Desc: not available URL: