shithub: dav1d

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set maxframes to NPROC

--- a/src/av19.c

+++ b/src/av19.c

@@ -33,16 +33,13 @@

 // FIXME why does it need this much?

 int mainstacksize = 512*1024;

-enum {

-	Maxframes = 4,

-};

-

 static Player *curplayer;

 static Image *curim;

-static Channel *converters[Maxframes];

+static Channel **converters;

 static QLock framelock;

 static uvlong todisplay;

 static int resize = 1;

+static int maxframes;

 /* yuv→rgb by Adrien Descamps */

@@ -221,7 +218,7 @@

 				}

 			}else{

 				f->n = p->n++;

-				sendp(converters[f->n % Maxframes], f);

+				sendp(converters[f->n % maxframes], f);

 			}

 		}

 	}while(p->data.sz > 0 || input_read(p->dc, &p->data) == 0);

@@ -362,6 +359,7 @@

 	};

 	Mousectl *mctl;

 	Keyboardctl *kctl;

+	char *s;

 	Rune key;

 	Mouse m;

 	int i, end, done;

@@ -394,7 +392,11 @@

 	a[Cresize].c = mctl->resizec;

 	a[Ckeyboard].c = kctl->c;

-	for(i = 0; i < nelem(converters); i++){

+	maxframes = atoi((s = getenv("NPROC")) != nil ? s : "1");

+	if(maxframes < 1)

+		maxframes = 1;

+	converters = calloc(maxframes, sizeof(*converters));

+	for(i = 0; i < maxframes; i++){

 		converters[i] = chancreate(sizeof(Frame*), 0);

 		proccreate(converterproc, converters[i], 4096);

 	}