It appears to me this function open an ao_live and return a device no. maybe the c library is too new to fit this. I suggest you use ao 0.86 which was published on 2003. or you could post your request on perlmonks and see if someone want to take over this module.
On Wed, May 30, 2012 at 5:43 AM, agraham <agra...@g-b.net> wrote: > Hi Guys, > > I've been using Audio::Ao (http://search.cpan.org/~dbp/** > Audio-Ao-0.01/Ao.pm <http://search.cpan.org/~dbp/Audio-Ao-0.01/Ao.pm>) > for some weeks and it's great. > > It's an interface to the libao library (http://xiph.org/ao/) > > However, until today I have only used it on Linux x64 (Fedora 14), I > compiled it on i686 (Fedora 14) and it segfaults when I call the > open_live() function. > > I created a clean F14 VM and get the same results as the i686 machine. > > The other functions/methods appear to work and return the corrected data > from the library. > > I do not understand C or XS and am incapable of fixing this issue myself > and was hoping someone could help resolve this problem as the Author is > AWAL :( > > I'm pretty sure the bug is in the C/XS code: > > Also: You are also supposed to be able to pass some optional parameters to > the open_live function, but if you pass anything other than an empty hash > ref (e.g. {}) it always segfaults :(, it would be nice to know why that > does not work as it should, but that is secondary. > > To clarify, this works on x64, but _not_ on i686, but in both causes it > compiles fine. > > The C/XS code is: > > SV *open_live ( int id, int bits, int rate, int channels, int bform, void > *o) > { > ao_option *opstruct = NULL; > ao_sample_format format; > ao_device *device; > SV *hval; > HV *options; > char **hkey; > I32 *retlen; > int ops = 0; > > if (o != NULL) > options = (HV *) o; > else > options = newHV(); > > hv_iterinit(options); > while ((hval = hv_iternextsv(options, hkey, retlen)) != NULL) { > ops = 1; > if (ao_append_option(&opstruct, *hkey, SvPV_nolen(hval)) != > 1) { > perror("Bad value in options hash, aborting > open_live"); > return &PL_sv_undef; > } > } > > format.bits = bits; > format.rate = rate; > format.channels = channels; > format.byte_format = bform; > > if (ops > 0) > device = (ao_device *) ao_open_live(id, &format, opstruct); > else > device = (ao_device *) ao_open_live(id, &format, NULL); > > ao_free_options(opstruct); > > return newSViv((IV) device); > } > > > NOTE: The same issue exists with the open_file() function, so I assume > that is the same problem, as they are almost identical functions. > > Thanks in advance > > Albert >
