Re: [Gap-dev-discuss] Cynthiune: song inspector without title bar

[Riccardo Mottola]

Hi,

you mean that you need to "force" the output to be always little endian 
because that is what comes from the file played? Perhaps the files (or 
only certain files) have an endianness tag and/or know format?
For example AIFF files are usually  big endian or, on modern macs, 
little-endian (AIFF/SWOT). I wonder how this is handled by audiofile.
WAV is known to be LE (RIFF)

MP3 I don't know. Of ocurse, the library might already compensate that. 
I never tackled audio programming.

If you are confident that you need to set always "LE", then commit the 
patch and we shall look at the ALSA and AO backends.

Riccardo


Sebastian Reitenbach wrote:
> I was able to fix the problem for the Sndio Output Bundle. I remembered the 
> manual page:
>
> http://www.openbsd.org/cgi-bin/man.cgi?query=sio_open&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html
>
> The struct sio_par has a parameter le, which defines the Endianess. Setting this
> parameter to LE, makes the sound work again for me on i386 and on macppc.
>
> A patch would look liek this:
>
> Index: Sndio.m
> ===================================================================
> RCS file: /sources/gap/gap/user-apps/Cynthiune/Bundles/Sndio/Sndio.m,v
> retrieving revision 1.2
> diff -u -r1.2 Sndio.m
> --- Sndio.m     1 May 2012 12:44:46 -0000       1.2
> +++ Sndio.m     5 May 2012 11:01:00 -0000
> @@ -108,6 +108,7 @@
>     sio_initpar(&par);
>     par.pchan = numberOfChannels;
>     par.rate = sampleRate;
> +  par.le = 1;
>
>     if (sio_setpar(hdl,&par))
>       {
>
>
> Don't know whether other output libraries have the same functionality
> to force it to little endian.
>
> Sebastian
>
> >