Samuel Thibault, le Wed 03 Feb 2010 00:00:43 +0100, a écrit :
> Felix Zielcke, le Tue 02 Feb 2010 15:09:47 +0100, a écrit :
> > There's play command in commands/i386/pc/play.c but I still don't know
> > what file format it actual plays.
>
> Ok, reading the source code told me how it works.
I'm more and more considering extending the play command a bit: for now
it takes a file name as parameter and plays it. However this is far
from user-friendly, needs to access /boot already, and one typically
just wants to play a few notes, so a separate file seems overkill to
me. It would perhaps be good to be able to use the following two
syntaxes:
play (hd0,1)/boot/grub/melody
or
play 120 440 1
BTW, the tempo part of the play command currently depends on the value
of GRUB_TICKS_PER_SECOND, shouldn't it be independent from it by using
the patch below, so that with a base tempo 60 and a duration 1, one gets
one second?
Samuel
2010-02-07 Samuel Thibault <samuel.thiba...@ens-lyon.org>
* commands/i386/pc/play.c (BASE_TEMPO): Set to 60 *
GRUB_TICKS_PER_SECOND.
--- commands/i386/pc/play.c 2010-01-03 22:05:07 +0000
+++ commands/i386/pc/play.c 2010-02-07 21:48:43 +0000
@@ -29,7 +29,7 @@
#include <grub/command.h>
#include <grub/i18n.h>
-#define BASE_TEMPO 120
+#define BASE_TEMPO (60 * GRUB_TICKS_PER_SECOND)
/* The speaker port. */
#define SPEAKER 0x61
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