stream sound[solved]

[eKid]

buffer_length = 4096 should be fine.

Did you remember to call mmStreamUpdate periodically?

[Tomdev]

i call it every vbl, is this wrong or this one(this is the problem i think)?

sys.samp_count = 0;

if thatś the problem, i can solve it so easy

[eKid]

Calling the update every frame is ideal.

Code: Select all

sys.samp_count = 0;

I'm not sure what this is...

[Tomdev]

yay it works now! but.. for a half , there are some parts with some noise, what i did was this:

change the wile in mm_word on_stream_request to if, i can explain it but it wasn't very logic to me

[eKid]

Oh, no that's something unrelated to this. Are you sure your OGG decoding stuff is progressing through the file rather than just decoding the beginning over and over?

edit: (oops this was targetted for that other post)

[Tomdev]

tested it with some other samples, i'm just almost there! still the same effect but the sampples ARE recognisable(the effect is like this: part good sound, part nothing/bit noise and so on until end of file). i'll pm you my main, maybe you can see whatś wrong


for other the rom, to hear the effect, its on my site: https://sites.google.com/site/tomdevsndshomebrew


edit: ok i've found a problem i think: i thought that when you did:

Code: Select all

s16 * test;
test++;

the pointer would point one byte furhter but that isn true. sound is better now. the only i can think off is that i don't update fast enough. ok here's the main i'm now using:

Code: Select all

#include <nds.h>
#include <filesystem.h>
#include <fat.h>
#include <stdio.h>
#include <stdlib.h>
#include "ivorbiscodec.h"
#include "ivorbisfile.h"
#include <maxmod9.h>

#define OGG_BUFFER_GROOTTE (4096) 


OggVorbis_File vf;
u8 channels;
u32 gelezen;
u32 samplecount;
mm_stream mystream;

void Update_OGG_Stream(OggVorbis_File * vf, void * buffer){

int current_section;
gelezen = 0;// we hebben immers nog niks gelezen in deze update

  while(gelezen<OGG_BUFFER_GROOTTE){// zolang het gelezen minder is dan de 
  //buffer grootte
 
    long ret = ov_read(vf,buffer,(OGG_BUFFER_GROOTTE -gelezen), &current_section);

	if(ret == 0){// EOF
	iprintf("eind van de file, kies een andere\n");
	ov_clear(vf); // close the ogg file
	mmStreamClose(); // colse the stream
	break;
	}

    		if (ret < 0) {// there's an error with decoding
		iprintf("fout tijdens decoden");
		break;
		} 
			else {
			buffer +=ret;
        		gelezen +=ret;
    			}

  		}

}

mm_word on_stream_request( mm_word length, mm_addr dest, mm_stream_formats format ) 
{

	int filled = 0;
	u8 *target = (u8*)dest;

	while( length >= 1024 ) {

		length -= 1024;
		filled += 1024;
		Update_OGG_Stream(&vf, target);
		target+=4096 // because it's an u8 pointer now instead of a s16
	}

	return filled;
}


int main(int argc, char **argv){

fatInitDefault();

FILE * pfile;
pfile = fopen("liedje.ogg", "rb");

consoleDemoInit();

mm_ds_system sys;
sys.mod_count 			= 0;
sys.samp_count			= 0;
sys.mem_bank			= 0;
sys.fifo_channel		= FIFO_MAXMOD;
mmInit( &sys );
	
mm_stream mystream;
mystream.sampling_rate		= 44100;
mystream.buffer_length		= 4096;		
mystream.callback 		= on_stream_request;		
mystream.format			= MM_STREAM_16BIT_STEREO;	
mystream.timer			= MM_TIMER0;				
mystream.manual			= true;

Open_OGG_File(pfile, &vf);

mmStreamOpen(&mystream );

	
while(1){

	mmStreamUpdate(); // update the ogg stream

    	swiWaitForVBlank();

}			
  return(0);
}

[carhr]

I´m trying to do this but I have problems. Nobody can help me?