shithub: aacenc

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add -b option to disable buffering and instead flush on each frame

--- a/frontend/aacenc.c

+++ b/frontend/aacenc.c

@@ -36,7 +36,7 @@

 static void

 usage(void)

 {

-	fprint(2, "usage: %s [-c CHAN] [-q QUANT] [-r RATE] [-t low|main|ltp] [-B BITRATE]\n", argv0);

+	fprint(2, "usage: %s [-b] [-c CHAN] [-q QUANT] [-r RATE] [-t low|main|ltp] [-B BITRATE]\n", argv0);

 	exits("usage");

 }

@@ -43,7 +43,7 @@

 void

 main(int argc, char **argv)

 {

-	int nch, srate, type, brate, sz, n, r, q, i;

+	int nch, srate, type, brate, sz, n, r, q, i, nobuffer;

 	ulong insamples, outsz, insz;

 	faacEncConfigurationPtr fmt;

 	u8int *obuf, ph[7+1+4+8];

@@ -53,6 +53,7 @@

 	uvlong ns;

 	char *s;

+	nobuffer = 0;

 	brate = 0;

 	srate = 44100;

 	nch = 2;

@@ -59,6 +60,9 @@

 	type = LOW;

 	q = 0;

 	ARGBEGIN{

+	case 'b':

+		nobuffer = 1;

+		break;

 	case 'B':

 		if((brate = atoi(EARGF(usage()))) < 0)

 			sysfatal("invalid bitrate %d", brate);

@@ -148,9 +152,12 @@

 			ns = 0;

 			if(Bwrite(&out, ph, sizeof(ph)) < 0)

 				break;

+			Bflush(&out);

 		}

 		if(Bwrite(&out, obuf, sz) < 0)

 			break;

+		if(nobuffer)

+			Bflush(&out);

 	}

 	Bflush(&out);