Which libraries does sceAudioSetFrequency need?

[PeterLeRoi]

I´m trying to program using sceAudioSetFrequency, but the compiler always says:

main.c:(.text+0x21c0): undefined reference to `sceAudioSetFrequency'
collect2: ld returned 1 exit status
make: *** [Audio_Mechanica.elf] Error 1

I´m including <pspaudiolib.h>, <pspaudio.h> and <pspaudio_kernel.h>. I´ve been reading http://psp.jim.sh/pspsdk-doc/ : files -> file list -> pspaudio_kernel.h, and I thought these libraries would be enough :(

Thanks for the help ;)

[Raphael]

You need to link pspaudio_driver

[PeterLeRoi]

Thanks for your help Raphael :)

I´ve seen in a post from cooleyes, there are many files:

sceAudio_driver371.S , main.c , makefile , cooleyesAudio.exp , cooleyesAudio.h

Do I need to compile it and launch the .prx from my program?
Don´t know what (and how) to link :(

Again, thanks :)

[J.F.]

sceAudioSetFrequency is a kernel level call. If you are doing 1.50 homebrew, that's no big deal, but if you're trying to be 3.xx/Slim compatible, you cannot call it in your app. You have to do like cooleyes and put it in an external prx.

[PeterLeRoi]

I´m working with 3.03 version... so, instead :

sceAudioSetFrequency(48000);

I should do something like:

sceKernelLoadExec(pathTo.PRX, NULL);

with the .prx compiled using cooleyes source code ?

Thanks ;)



Edit: I´ve tried loading .prx (that get compiling cooleyes´ code) with :

sceKernelLoadExec("./setfrequency/cooleyesAudio.prx", NULL);

and psp freezes when reach that line :(

I´ve never loaded any .prx so don´t know if doing the correct steps.

Any help, please?

[PeterLeRoi]

Ok, I´ve linked the pspaudio_driver. Now the program compiles ok, but when I start it using psplink get 0x80020001 error, and if put the eboot on psp´s "Game150" and launch, psp crashes and turn off. I´m using version 3.02 OE - B

The error is something about "kernel error", so maybe if dowgrade to 1.5 it´ll work fine. Don´t know. But, my question, isn´t psp suppose to run the program on kernel mode if I put it on "Game150" directory?

[J.F.]

Ok, I´ve linked the pspaudio_driver. Now the program compiles ok, but when I start it using psplink get 0x80020001 error, and if put the eboot on psp´s "Game150" and launch, psp crashes and turn off. I´m using version 3.02 OE - B

The error is something about "kernel error", so maybe if dowgrade to 1.5 it´ll work fine. Don´t know. But, my question, isn´t psp suppose to run the program on kernel mode if I put it on "Game150" directory?

Only if you've programmed it to be kernel mode app. If you write it to be a 3.xx user mode app, you need to put it in GAME3xx or GAME with the kernel mode set to 3xx in the recovery menu.

You don't seem to get what I meant in my first reply. Read this thread entirely:
http://forums.ps2dev.org/viewtopic.php?t=9022

[PeterLeRoi]

Thanks for your help J.F.

I´ve changed the attributes on PSP_MODULE_INFO, now I run the program on kernel mode.

The program compiles, but when I´m running it everything is fine until it reachs

sceAudioSetFrequency(48000);

at this line, psp freezes and turns off.

This is the error:

Code: Select all

Opening connection to localhost port 10000

host0:/> ./Audio_Mechanica.elf
Load/Start host0:/Audio_Mechanica.elf UID: 0x044C3C65 Name: Virtual Tape Recorder

host0:/> Exception - Bus error (instr)
Thread ID - 0x0448ED71
Th Name   - user_main
EPC       - 0x080C2764
Cause     - 0x10000018
BadVAddr  - 0x08001080
Status    - 0x20008613
zr:0x00000000 at:0x0008FF00 v0:0x00000000 v1:0x00000000
a0:0x0000BB80 a1:0x00000000 a2:0x88224898 a3:0x00000000
t0:0x00000000 t1:0x0000133F t2:0x20008600 t3:0x882FFA00
t4:0x09FFEDF8 t5:0x00000E00 t6:0x08902218 t7:0x00008600
s0:0x00070000 s1:0x08910000 s2:0x00000001 s3:0x00000100
s4:0x08910000 s5:0x08910000 s6:0x09F20000 s7:0x08910000
t8:0x00000000 t9:0x880BF5B0 k0:0x09FFEF00 k1:0x00000000
gp:0x0891A950 sp:0x09FFEDF8 fp:0x09FFEEA0 ra:0x08902220

I thought: "Ok, I´ll read again the doc about this instruction". And my surprise, if look at "user audio library" on

http://www.geardome.com/pspsdk-doc/

it doesn´t appear, but if look on

http://psp.jim.sh/pspsdk-doc/

then the function appears.

Why? (the error or the appearing/dissapearing fuction)

Thanks again :)

[jimparis]

Regarding the error, it's not clear from the error where the problem lies; build your code with debugging symbols and run psp-addr2line on the EPC to find out which instruction is actually failing.

Regarding the docs, psp.jim.sh is updated daily, and the geardome.com site is just an old mirror of that.

[PeterLeRoi]

Thanks for your help jimparis

About the error, I didn´t explain it before, the program works without this instruction, but I need to add it. So I wrote the program:

If press L trigger, then it´ll run sceAudioSetFrequency in order to change frequency to 48000.

If don´t press L trigger, program works fine, can record and play sounds at 44100 Hz. Everything´s correct. But when press L trigger psp freezes, I´m 100% sure it´s related to that function.

[jimparis]

Yes, but knowing where the error is occuring is still important. From what you've said I don't think there's enough info to figure out the problem..

[PeterLeRoi]

Thanks for your help :)

I´ve started programming psp recently and don´t have much time, so don´t want my program works for any version specifically, if it works only on 1.5 it´ll be enough.

This afternoon I´ll downgrade to 1.5 and check if then the program can run.

Edit: tried on 1.5 and the same result :(

Code: Select all

Opening connection to localhost port 10000

host0:/> ./Audio_Mechanica.elf
Load/Start host0:/Audio_Mechanica.elf UID: 0x0449F847 Name: Virtual Tape Recorde
r

host0:/> Exception - Bus error (instr)
Thread ID - 0x04490D53
Th Name   - user_main
EPC       - 0x080C2764
Cause     - 0x00000018
BadVAddr  - 0x80010050
Status    - 0x20008613
zr:0x00000000 at:0x0008FF00 v0:0x00000000 v1:0x00000000
a0:0x0000BB80 a1:0x00000000 a2:0x88224998 a3:0x00000000
t0:0x00000000 t1:0x0001B9ED t2:0x20008600 t3:0x882FFA00
t4:0x09FFEDF8 t5:0x00000E00 t6:0x08902218 t7:0x00008600
s0:0x00070000 s1:0x08910000 s2:0x00000001 s3:0x00000100
s4:0x08910000 s5:0x08910000 s6:0x09F20000 s7:0x08910000
t8:0x00000000 t9:0x880107E0 k0:0x09FFEF00 k1:0x00000000
gp:0x0891A950 sp:0x09FFEDF8 fp:0x09FFEEA0 ra:0x08902220
reset
Resetting psplink

host0:/>

Maybe I´m forgetting something:

Code: Select all

#include "pspaudio_kernel.h"
...
PSP_MODULE_INFO("Virtual Tape Recorder", PSP_MODULE_KERNEL, 1, 1);
...
int main(int argc, char* argv[]){
          ...
          sceCtrlReadBufferPositive(&pad, 1);
          ...
          case DETECTA_L:
		printf("\nChanging frec");
		sceAudioSetFrequency(48000);
		printf("\nFreq changed OK");
		sceKernelDelayThread(500000);
		break;

....

and Makefile:

Code: Select all

TARGET = Audio_Mechanica
OBJS = logging.o psp_audio_ext.o file_browser.o main.o 

INCDIR                 := ./include 
CFLAGS = -O2 -G0 -Wall -g
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti

ASFLAGS = $(CFLAGS)

LIBDIR = 
LDFLAGS =
LIBS = -lpspaudiolib -lpspaudio -lpspaudio_driver

EXTRA_TARGETS = EBOOT.PBP kxploit
PSP_EBOOT_TITLE = Audio Mechanica
EXTRA_CLEAN            = clean_kxploit
PSPSDK=$(shell psp-config --pspsdk-path)

include $(PSPSDK)/lib/build.mak

copy:
	cp -r __SCE__${TARGET} /media/psp/psp/GAME/
	cp -r %__SCE__${TARGET} /media/psp/psp/GAME/

Don´t know how to make Makefiles well, so I´m using Audio Mechanica´s Makefile with some changes :(

[PeterLeRoi]

I´ve tried :

Peter@pete /cygdrive/e/Uni/PSP/Polemic Desarrolleision
$ psp-addr2line.exe -fe Audio_Mechanica.elf 0x080C2764
??
??:0

I´ve added -g to my makefile, but it uses other files that didn´t know how were compilated :(

[PeterLeRoi]

Ok, as I can´t get sceAudioSetFrequency working on my program, I´ve taken a "hello world" (main.c and Makefile):

1. link pspaudio_driver, pspaudio and pspaudiolib
2. add -g to CFLAGS on makefile
3. add #include <pspaudio_kernel.h>, #include <pspaudio.h>, #include <pspaudiolib.h> to main.c
4. changed PSP_MODULE_INFO´s mode attribute to 0x1000
and 5. added just one instruction sceAudioSetFrequency(48000)

And the result:

Code: Select all

host0:/> ./hello.elf
Load/Start host0:/hello.elf UID: 0x044C5635 Name: Hello World

host0:/> Exception - Bus error (instr)
Thread ID - 0x04492C41
Th Name   - user_main
EPC       - 0x080C2764
Cause     - 0x00000018
BadVAddr  - 0xA0144848
Status    - 0x20008613
zr:0x00000000 at:0x0008FF00 v0:0x0000000B v1:0x08910000
a0:0x0000BB80 a1:0x089103E7 a2:0xFFFFFFFF a3:0x44004118
t0:0x00000008 t1:0x00000001 t2:0x00000000 t3:0x44003918
t4:0x09FFEE20 t5:0x00000E00 t6:0x08900384 t7:0x00008600
s0:0x00000011 s1:0x09FFEE34 s2:0x00000001 s3:0x09FFEEE0
s4:0x00000011 s5:0x00000013 s6:0xDEADBEEF s7:0xDEADBEEF
t8:0x00000000 t9:0x88224888 k0:0x09FFEF00 k1:0x00000000
gp:0x08919370 sp:0x09FFEE28 fp:0x09FFEEA0 ra:0x089003C4

and if try:

Code: Select all

Peter@pete /cygdrive/e/Uni/PSP/Hola mundo de pruerba
$ psp-addr2line.exe -fe hello.elf 0x080C2764
??
??:0

Don´t know more things to try :( The EPC is the same, it doesn´t matter if using Hello world or audio mechanica

Thanks for your infinite patience :D (and sorry for my bad English)