Re: [Csnd-dev] [EXTERNAL] [Csnd-dev] sysdep.h and MAXLEN for ftables

I tried to create a table (using the API, compileOrc and CopyTableIn) after
reading samples from a stereo file (so the table will hold both channels,
interleaved): this works: audioClip samples 4549938x2 = 9099876, length
(seconds): 103.1732, sr: 44100
this doesn't: audioClip samples 10612538x2 = 21225076, length (seconds):
240.6471, sr: 44100
with this log:
illegal table length
INIT ERROR in instr 0 (opcode ftgen) line 11: ftgen error gisampletable100
ftgen 100 0 -21225076 -7 0 0

I'm still using Csound6 (6.18) on CsoundUnity on macOS

Il giorno mar 1 ott 2024 alle ore 21:58 Victor Lazzarini <
[email protected]> ha scritto:

> That’s if B64BIT is not defined. Actually I don’t think we need to check
> for this.
> ========================
> Prof. Victor Lazzarini
> Maynooth University
> Ireland
>
> > On 1 Oct 2024, at 20:20, Steven Yi <[email protected]> wrote:
> >
> > I was going off what's documented in the manual (
> https://csound.com/docs/manual/f.html)
> >
> > "p3 -- Size of function table (i.e. number of points) Must be a power of
> 2, or a power-of-2 plus 1 if this number is positive. Maximum table size is
> 16777216 (224) points."
> >
> > I think Giovanni ran into issues with longer sized tables but I don't
> recall how long.
> >
> > On Tue, Oct 1, 2024 at 3:00 PM Victor Lazzarini <
> [email protected]> wrote:
> > MAXLEN is 0x10000000 for most modern archs, that's 2^28 is it not? That
> translates into
> > about 101 minutes of audio at 44100.
> >
> > It does not strike me as too short. I think we could get away with 2^32
> without having to do a major overhaul, but I need to check if my idea works
> correctly. That would allows 1603 minutes or 27 hours of audio.
> >
> > Prof. Victor Lazzarini
> > Maynooth University
> > Ireland
> >
> >> On 1 Oct 2024, at 13:36, Steven Yi <[email protected]> wrote:
> >>
> >>  *Warning*
> >> This email originated from outside of Maynooth University's Mail
> System. Do not reply, click links or open attachments unless you recognise
> the sender and know the content is safe.
> >> Hi All,
> >>
> >> I was chatting with Giovanni Bedetti on Discord about max table length.
> It seems awfully small at 2^24 (~16MB). Any reason not to bump that up to
> something larger?
> >>
> >> Also, while looking at that, I noticed B64BIT detection in sysdep.h. I
> saw that it was missing aarch64 amongst other things, so I've submitted a
> PR to update this.
> >>
> >> steven
>
>