Search found 95 matches

by Shapyi
Sat Feb 14, 2009 11:01 am
Forum: PSP Development
Topic: Media Engine and Mp3 decoding
Replies: 23
Views: 18229

Well for my project I would only need Mp3 decoding using Sony's modules while using the media engine CPU for other operations. Anyone know if that is possible? Probably not. The ME is almost certainly used to pass data to/from the VME/AVC decoders, among other tasks. It's clear that Sony loads ME c...
by Shapyi
Fri Feb 13, 2009 12:51 pm
Forum: PSP Development
Topic: Media Engine and Mp3 decoding
Replies: 23
Views: 18229

Well for my project I would only need Mp3 decoding using Sony's modules while using the media engine CPU for other operations. Anyone know if that is possible?
by Shapyi
Wed Feb 11, 2009 3:32 pm
Forum: PSP Development
Topic: Media Engine and Mp3 decoding
Replies: 23
Views: 18229

Yeah I know you could. But I know Sony's PRX sets up the media engine for decoding mp3 audio, or h.264 video. My question is, when the ME is in that state and decoding "media" can I still run my own code on it by using threads or some other method?
by Shapyi
Wed Feb 11, 2009 12:08 pm
Forum: PSP Development
Topic: Media Engine and Mp3 decoding
Replies: 23
Views: 18229

I know, but is it possible to run my own code on the media engine and decode mp3 (say in a separate thread maybe)?
by Shapyi
Wed Feb 11, 2009 11:49 am
Forum: PSP Development
Topic: Media Engine and Mp3 decoding
Replies: 23
Views: 18229

Media Engine and Mp3 decoding

I am working with an application that uses the media engine for extra CPU power. I would like to move mp3 decoding from the main CPU and use the media engine hardware method cooleyes discovered. Is it possible to do that or are there some restrictions I should know about before I start working on it...
by Shapyi
Mon Feb 09, 2009 7:28 am
Forum: PSP Development
Topic: a new sample to decode all psp supported MP4AVC
Replies: 8
Views: 9996

Great work, thanks for sharing. Does this just work with AVC or does it work with both MPEG4-ASP and H.264? Have you discovered a similar method for decoding standard MPEG4 with resolutions above 480x272? Because I remember seeing this thread awhile back , it would be great to decode XviD using the ...
by Shapyi
Sun Feb 08, 2009 5:43 pm
Forum: PSP Development
Topic: a sample to decode a psp mp4(avc) file
Replies: 30
Views: 54883

i found the "pspmpeg" and the "mem64" libs, but no "mp4ff" lib, do someone has this lib, or maybe, knows it as an other name? ok, just wait a few days, I will post a new sample code It can decode <=480*272 main profile avc, it also can decode 480P main profile avc :) Y...
by Shapyi
Wed Feb 04, 2009 4:15 am
Forum: PSP Development
Topic: Capabilities of the hardware mpeg4 decoder.
Replies: 10
Views: 7807

Do you know the specific prx modules that are being used? I might want to try disassembling them to get some insight into this.
by Shapyi
Tue Feb 03, 2009 1:43 pm
Forum: PSP Development
Topic: Capabilities of the hardware mpeg4 decoder.
Replies: 10
Views: 7807

Many do, but many don't. Most of my MKVs have AC3 or OGG. But that's not a problem if the codec could be used for the video stream as that would leave plenty of power for decoding even DTS audio. The main CPU would split the incoming transport stream (AVI, MKV, OGM, MOV, etc) into the elementary st...
by Shapyi
Mon Jan 26, 2009 7:10 am
Forum: PSP Development
Topic: Capabilities of the hardware mpeg4 decoder.
Replies: 10
Views: 7807

Well right now cooleyes and others have only been able to decode 480x272 res H.264 and MPEG4 videos with PSP in homebrew. But you are correct, in the XMB you can play 720x480p videos without a problem. Hopefully someone will figure out how to perform the same task in homebrew. It would be great to ...
by Shapyi
Fri Jan 09, 2009 10:01 am
Forum: PSP Development
Topic: Audio Compling Problems (lightmp3 related kinda)
Replies: 3
Views: 3747

I was trying to compile a version of it from more than a year ago and my SDK is now recent. I fixed the problems. Here is the solution for anyone who has the same problem: sceAudio_38553111 is now sceAudioSRCChReserve sceAudio_5C37C0AE is now sceAudioSRCChRelease sceAudio_E0727056 is now sceAudioSRC...
by Shapyi
Fri Jan 09, 2009 7:29 am
Forum: PSP Development
Topic: Audio Compling Problems (lightmp3 related kinda)
Replies: 3
Views: 3747

Audio Compling Problems (lightmp3 related kinda)

I am trying to put the hardware playing portion of lightmp3 into a standalone library which I can use in other homebrew applications. When I try to compile I get these errors: psp-gcc -I. -I/usr/local/pspdev/psp/sdk/include -O2 -G0 -Wall -D_PSP_FW_VERSION= 150 -c -o mp3playerME.o mp3playerME.c psp-g...
by Shapyi
Thu Jan 01, 2009 3:44 pm
Forum: PSP Development
Topic: Capabilities of the hardware mpeg4 decoder.
Replies: 10
Views: 7807

Well right now cooleyes and others have only been able to decode 480x272 res H.264 and MPEG4 videos with PSP in homebrew. But you are correct, in the XMB you can play 720x480p videos without a problem. Hopefully someone will figure out how to perform the same task in homebrew. It would be great to h...
by Shapyi
Sat Dec 06, 2008 10:39 am
Forum: PSP Development
Topic: PSPlayer 2.0 Release
Replies: 22
Views: 26354

Since 640*352 are 225280 pixel and 480x272 are just 130560 pixel ;) tecgen i think you must have missread my post. If 225280 pixel > 130560 pixel then 640x352 > 480x272 , yet kralyk said; 640*352 is NOT more than 480*272 (thanks cooleyes for your hint) (My emphasise) That means cooleyes told kralyk...
by Shapyi
Thu Nov 27, 2008 4:53 pm
Forum: PSP Development
Topic: PSPlayer 2.0 Release
Replies: 22
Views: 26354

Some people ask what good the video out is on the Slim - it's the smallest, most quiet video player out. Play a good AVC video at 720x480 at 30 Hz with surround encoded sound off the memstick to a GOOD TV out the component cable... it far exceeds DVD players. It has the same resolution as a DVD (72...
by Shapyi
Fri Oct 24, 2008 5:11 am
Forum: PSP Development
Topic: PSP-3000 Problems
Replies: 6
Views: 4254

It probably has to do with the sub-pixel structure of the new LCD screen seen here: http://upload.wikimedia.org/wikipedia/en/d/d8/Psp_subpixels.png If I were to guess, I would think that the new screen was designed this way to give the illusion they fixed the ghosting issues. Instead of getting rid ...
by Shapyi
Wed May 21, 2008 3:02 pm
Forum: PSP Development
Topic: SDL vsync?
Replies: 2
Views: 2943

Code: Select all

sceDisplayWaitVblankStart&#40;&#41;;
Add that before you call your flip function.
by Shapyi
Tue Apr 29, 2008 1:07 pm
Forum: PSP Development
Topic: IP over USB
Replies: 12
Views: 6679

If you can get that coded it would be amazing since I don't really have access to WiFi either. You would need to write prx that replaces the wifi modules in kernel memory. Your functions would emulate the wifi protocol and send information to a PC client that communicates back and forth. I'm sure it...
by Shapyi
Mon Apr 28, 2008 1:08 pm
Forum: PSP Development
Topic: Installation problem with Cygwin / psptoolchain
Replies: 6
Views: 4016

I had the same problem building remotejoy with cygwin. If you aren't going to use it, look for it in the psplink make file and just comment it out.
by Shapyi
Mon Apr 21, 2008 9:56 am
Forum: PSP Development
Topic: Question about memory stick access and threads
Replies: 11
Views: 6802

Thanks for all the comments. Everything seems to be working fine.
by Shapyi
Fri Apr 18, 2008 12:31 pm
Forum: PSP Development
Topic: Question about memory stick access and threads
Replies: 11
Views: 6802

Question about memory stick access and threads

I searched the forums and couldn't find a direct answer. I am writing a program for PSP that uses a thread to stream MP3s as background music using cooleye's example. Now the thread is reading the memory stick every time it needs a new frame in the mp3. The main program is also reading the memory st...
by Shapyi
Fri Mar 07, 2008 2:59 am
Forum: PSP Development
Topic: FPU Exception error driving me crazy!
Replies: 4
Views: 3798

Setting it like this:

Code: Select all

ammo&#91;i&#93;.x = 1.0f;
Is probably more "proper" in terms of coding. It might be throwing an exception because you gave it an int. I dunno, it could be psplink.
by Shapyi
Sun Mar 02, 2008 5:54 pm
Forum: PSP Development
Topic: Load Iso's/Cso's
Replies: 24
Views: 10613

lol, sorry about that ahahah,im so duh LOL, Ok, thank you for the information :D So if I decompress the ISO image and load the eboot.bin with the sceKernelLoadExecVSHDisc will it work? Discussing anything related to pirating games or running "backups" is not allowed on this forum. You are...
by Shapyi
Sat Feb 16, 2008 9:16 am
Forum: PSP Development
Topic: Available memory?
Replies: 1
Views: 3233

Available memory?

I wrote a basic program that uses the graphics source code from Lua Player (graphics.h) and I am using psplink to play around. Before running the code I run "meminfo" and get: Memory Partitions&#58; N | BASE | SIZE | TOTALFREE | MAXFREE | ATTR | --|------------|----------|-----------|-...
by Shapyi
Sat Feb 09, 2008 5:23 pm
Forum: PSP Development
Topic: Printing to pcterm (PSPLink)
Replies: 2
Views: 3640

I thought it was something like that, it turned out I was using:

Code: Select all

#define printf	pspDebugScreenPrintf
From one of the sample programs and not stdio.h. Thank you very much, this will save me a lot of headaches.
by Shapyi
Sat Feb 09, 2008 4:59 pm
Forum: PSP Development
Topic: Printing to pcterm (PSPLink)
Replies: 2
Views: 3640

Printing to pcterm (PSPLink)

I'm new to PSPlink and I was wondering if it is possible to put a printf like command in a PSP program, run it with PSPLink and print it to the pc terminal rather than a the PSP screen. If it is possible, what would that code look like? Thank you.
by Shapyi
Wed Feb 06, 2008 3:11 am
Forum: PSP Development
Topic: Scaling image in hardware, storing result
Replies: 8
Views: 7339

Thanks for the advice guys, I'm gonna play around with some of your ideas.
by Shapyi
Tue Feb 05, 2008 10:53 am
Forum: PSP Development
Topic: Scaling image in hardware, storing result
Replies: 8
Views: 7339

1) why can't you save your texture already resized? 2) why resize time is an issue for you? Aren't "Loading..." screens cool? :) 3) if you've to do this realtime, why don't make use of MIP mapping? 4) is filtering (and generally speaking quality) important to you? jean I'm just writing a ...
by Shapyi
Tue Feb 05, 2008 1:19 am
Forum: PSP Development
Topic: Scaling image in hardware, storing result
Replies: 8
Views: 7339

But do you think this technique would work if I loaded an image that was 2048 x 2048. I want to support large images that won't necessarily fit in PSP's video memory.
by Shapyi
Mon Feb 04, 2008 4:34 pm
Forum: PSP Development
Topic: Scaling image in hardware, storing result
Replies: 8
Views: 7339

Scaling image in hardware, storing result

Does the gu on PSP have a scale function that will let me scale a texture and store the result in memory or even on the memory stick? I am playing around with PSP programming by writing a simple image viewer. I want to be able to scale large images with some filtering so the results aren't garbage. ...