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Wildwest 01 May 2005, 12:21
I'm not dude for You. I'm specialist in audio and visual technologies.
Pay MS money for source_code of WMA and rewrite it to asm. Good luck! |
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01 May 2005, 12:21 |
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Wildwest 01 May 2005, 18:52
Quote: which encoder/decoder can be made easyer WMA - is closed commerial format, without any kind of specification available in Internet. Can you implement this format without technical info? I cannot... |
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01 May 2005, 18:52 |
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dCool101d 01 May 2005, 19:59
Wildwest wrote:
Dude, chill... As luka666 cleared up, I just stated what would be best...Some places have actually figured out WMA! Anyways, thats waht I came up with... Besides for streaming, we need to find out whether OGG or MP3 takes up less processing power...usually less processing also means easier coding! |
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01 May 2005, 19:59 |
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E}I{ 12 May 2005, 10:36
err.. how about someone implementing instead some outdated formats which can be still fun to hear sometimes.. MOD for example or some simpler chip-music formats, or XA,ADX adpcm streams?.. I clearly remember that many asm-only players with support for many modlike formats existed.. BTW it would be good idea to implement efficient software multi-channel sound mixer anyway. it should receive wave buffers in several basic formats, queue them, mix them and activate user callbacks/set completion flags when needed. It should also report approximated playing position, so apps can try to achieve least possible latency.
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12 May 2005, 10:36 |
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Wildwest 12 May 2005, 14:18
E}I{ wrote: err.. how about someone implementing instead some outdated formats which can be still fun to hear sometimes.. MOD for example or some simpler chip-music formats, or XA,ADX adpcm streams?.. I clearly remember that many asm-only players with support for many modlike formats existed.. BTW it would be good idea to implement efficient software multi-channel sound mixer anyway. it should receive wave buffers in several basic formats, queue them, mix them and activate user callbacks/set completion flags when needed. It should also report approximated playing position, so apps can try to achieve least possible latency. Флаг тебе в руки Сделай ветку на русском форуме... сейчас никто для МеОС ничего не пишет, кроме людей из экс-СССР. MOD - это хорошо, но они, мягко говоря, имеют очень узкий круг создателей и как следствие потребителей. I planned to add ability to read ID3 tags... in the end of May/the beginning of June. |
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12 May 2005, 14:18 |
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Wildwest 05 Aug 2005, 17:53
SuperMP3 0.4 at
http://coolthemes.narod.ru/supermp3.html |
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05 Aug 2005, 17:53 |
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Madis731 05 Aug 2005, 21:55
I've never dealt with sound before - I mean no drivers no codecs - NOTHING! I only listen to it if that counts.
I looked at the MP3 PDFs and DOCs and I still can't understand how that works. Like how are you going to output your soundvibrations to speakers. Maybe its hard to understand because I'm a lowlevel guy but maybe someone here might explain some consepts in a short manner. 1000 words or less if possible My question would be how long is it going to take for MenuetOS to play audio files from HDD/network etc. even if it was for one soundcard and one mp3 format? |
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05 Aug 2005, 21:55 |
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luka666 06 Aug 2005, 06:46
My guess it will take at least a year. hope i`m wrong...
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06 Aug 2005, 06:46 |
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Dex4u 06 Aug 2005, 11:30
Heres my ???? to Madis731, you have a DosBOX port for MenuetOS, can you not run a Dos mp3 player in that ???.
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06 Aug 2005, 11:30 |
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donkey7 06 Aug 2005, 13:51
dCool101d wrote:
Don't read this outdated stuff! Sound quality cannot be measures by diagrams! We must hear the differences. Lossy sound foramts are not intended to have great look on diagrams. They are intended to have highest perceptual quality. So, if you would test sound formats, you must use ABX or similar tool. About quality: look at http://www.hydrogenaudio.org/forums/index.php?showtopic=35438. WMA is really not good (sometimes even worse than mp3) and OGG seems to be the best codec over the world (even better than AAC, MPC or others)! You can always download the new oggdropXPd (with sources) from http://rarewares.org So if you are looking for better codec than mp3 you should instantly use ogg. But there are some implementations of mp3decoder that are very simple & small & portable (even small as 20kb C source codes). Porting it would take no more than a week (of non-contiguous work). _________________ Keep coding! |
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06 Aug 2005, 13:51 |
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luka666 06 Aug 2005, 14:56
Dex4u: i would think an ASM player would be faster
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06 Aug 2005, 14:56 |
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Dex4u 06 Aug 2005, 16:27
Your right luka666 , but it will not be easy coding a asm mp3 player, if i had more time i would help, but busy with "Dex4u" (my own OS).
PS: I did find some asm code for decoder, but i lost it, it was in a load of asm x86 snips, i think i got it from this site http://www.programmersheaven.com/ Not 100% shore though ?. |
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06 Aug 2005, 16:27 |
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Dex4u 08 Aug 2005, 20:30
I have been given a link to some asm mp3 decoder code, the rest of the code is mostly C, but the decoder bit is asm (not fasm), i will be making a mp3 player for "Dex4u" my own OS, so if any one starts to makes one for MenuetOS, let me know as we can share code and info, as my OS is similar to MenuetOS.
Here's the site http://www.geocities.com/mpxplay/ and the code is "Mpxplay v1.52" under source. PS: If that site is down there are some mirrors , just do a google. |
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08 Aug 2005, 20:30 |
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Wildwest 17 Aug 2005, 15:19
SuperMP3 0.55
http://coolthemes.narod.ru/supermp3.html Madis, can you be a little more active and join to us?
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17 Aug 2005, 15:19 |
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Madis731 18 Aug 2005, 06:38
Hi, I'm here - I've been busy with browser and Widgets. Tell me what can I do. Is there a place to share thoughts (or is this the right place?)?
Isn't there a way to ignore ID3(v.1,2,...) tags when they are not implemented and find the first (byte -1) and go on from there. Or are there problems with that kind of search? |
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18 Aug 2005, 06:38 |
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Wildwest 18 Aug 2005, 17:12
I got version from A.Ershov, which can read ID3v1(except field Genre and it seems like his version of SuperMP3 would not work with all tagged mp3 files). Probably I upload it to site in two days(needs merging with 0.55). I think you can make page at Wiki for more productive work(maybe add some of your UML magic - "to-do" plan). I cannot be active coder until October, so you mainly would cooperate with Alexei. New versions and discusions can be placed here.
Well, we are close to work on decoding of frame itself. Prepare you fingers for work on this (e.g. read docs and understand all that crap inside them).
Last edited by Wildwest on 18 Aug 2005, 17:34; edited 1 time in total |
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18 Aug 2005, 17:12 |
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Wildwest 18 Aug 2005, 17:16
BTW, what has happened with my quantity of posts?
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18 Aug 2005, 17:16 |
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pelaillo 18 Aug 2005, 21:34
Quote:
Maybe the automatic prunning of heap forum? (just a guess) |
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18 Aug 2005, 21:34 |
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profkid13 19 Aug 2005, 12:34
nice!
btw, did you note the time is 0 ? keep up the good work |
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19 Aug 2005, 12:34 |
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