shithub: hj264

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add -O option to disable optimizations

--- a/hj264.c

+++ b/hj264.c

@@ -63,6 +63,8 @@

 	u8int bgrx[];

 };

+static int nopt;

+

 #pragma varargck type "ℏ" int

 static int

 hjerror(Fmt *f)

@@ -239,7 +241,7 @@

 	for(;;){

 		if((img = recvp(h->frame)) == nil)

 			break;

-		if(prev != nil && memcmp(img->bgrx, prev->bgrx, img->w*img->h*4) == 0){

+		if(!nopt && prev != nil && memcmp(img->bgrx, prev->bgrx, img->w*img->h*4) == 0){

 			free(img);

 			continue;

 		}

@@ -246,8 +248,12 @@

 		xrgb2yuv420(img->bgrx, img->w, img->h, &h->yuv);

 		ts = img->ns / Nmsec;

-		free(prev);

-		prev = img;

+		if(!nopt){

+			free(prev);

+			prev = img;

+		}else{

+			free(img);

+		}

 		if(hj264_encode(h, &data, &sz) != 0)

 			sysfatal("hj264_encode: %r");

@@ -305,7 +311,7 @@

 static void

 usage(void)

 {

-	fprint(2, "usage: %s [-D] [-f FPS] [-F FORMAT] [-g GOP] [-n THREADS] [-k KBPS] [-q 0…10] [-Q QP] FILE\n", argv0);

+	fprint(2, "usage: %s [-D] [-f FPS] [-F FORMAT] [-g GOP] [-n THREADS] [-O] [-k KBPS] [-q 0…10] [-Q QP] FILE\n", argv0);

 	threadexitsall("usage");

 }

@@ -376,6 +382,9 @@

 		break;

 	case 'n':

 		nthreads = atoi(EARGF(usage()));

+		break;

+	case 'O':

+		nopt = 1;

 		break;

 	case 'q':

 		quality = atoi(EARGF(usage()));