Laborde Ludovic wrote:
> Hello,
>
> I have Sound Blaster Audigy SE and when a launch this code, my buffer is
> 2046.
>
> Can you test this for me and you return your SizeBuffer ?
>
> Because i think that my buffer it's too small.
>
>
> Regards
>
>
>
>
>
> ---- File SizeBuffer.c -----
> #include <sys/soundcard.h>
> #include <fcntl.h>
> #include <stdio.h>
> #include <unistd.h>
>
> int main () {
> int faudio;
> int err;
> audio_buf_info info;
> faudio = open( "/dev/audio", O_WRONLY );
> err=ioctl( faudio, SNDCTL_DSP_GETOSPACE, &info);
> printf("bytes %d err : %d faudio: %x \n", info.bytes,err,faudio );
> return 0;
> }
>
Firstly, you should be using the ALSA api and not the OSS one.
Secondly, you cannot increase the hardware size, it is a hardware
limitation for that card.
The card has up to 8 periods, with a max length for each period.
So, instead of using 2 periods, try using 8. You will then get 4 times
the buffer size. periods and buffer size are all set using the ALSA api.
James
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