shithub: neindaw

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piper: add -r option to record audio

--- a/piper/piper.c

+++ b/piper/piper.c

@@ -30,6 +30,7 @@

 static Group *groups;

 static int numgroups;

 static int audio;

+static int record = -1;

 static Synth *synths[] = {

 	&ay_3_8910,

@@ -40,7 +41,7 @@

 static void

 usage(void)

 {

-	print("usage: %s [-m] DIR...\n", argv0);

+	print("usage: %s [-m] [-r FILE] DIR...\n", argv0);

 	threadexitsall("usage");

 }

@@ -247,6 +248,8 @@

 		}

 		if (write(audio, pcm, 2*Bufframes*sizeof(*pcm)) < 0)

 			break;

+		if (write(record, pcm, 2*Bufframes*sizeof(*pcm)) < 0)

+			break;

 	}

 	threadexits(nil);

@@ -255,16 +258,20 @@

 void

 threadmain(int argc, char **argv)

 {

-	char *s, t[256];

+	char *s, t[256], *to;

 	Synth *synth;

 	Biobuf *b;

 	int i, j, n, nomixer;

 	nomixer = 0;

+	to = nil;

 	ARGBEGIN{

 	case 'm':

 		nomixer = 1;

 		break;

+	case 'r':

+		to = EARGF(usage());

+		break;

 	default:

 		usage();

 	}ARGEND;

@@ -273,6 +280,8 @@

 		usage();

 	if (!nomixer && (audio = open("/dev/audio", OWRITE)) < 0)

+		sysfatal("%r");

+	if (to != nil && (record = create(to, OWRITE|OTRUNC, 0644)) < 0)

 		sysfatal("%r");

 	quotefmtinstall();