common: make 0 the default for Dav1dDataProps.duration

include/dav1d/common.h

@@ -53,7 +53,7 @@
  */
 typedef struct Dav1dDataProps {
     int64_t timestamp; ///< container timestamp of input data, INT64_MIN if unknown (default)
-    int64_t duration; ///< container duration of input data, -1 if unknown (default)
+    int64_t duration; ///< container duration of input data, 0 if unknown (default)
     int64_t offset; ///< stream offset of input data, -1 if unknown (default)
     size_t size; ///< packet size, default Dav1dData.sz
 } Dav1dDataProps;

src/data.c

@@ -65,7 +65,8 @@ int dav1d_data_wrap(Dav1dData *const buf, const uint8_t *const ptr, const size_t
     buf->data = ptr;
     buf->sz = buf->m.size = sz;
     buf->m.timestamp = INT64_MIN;
-    buf->m.duration = buf->m.offset = -1;
+    buf->m.duration = 0;
+    buf->m.offset = -1;
 
     return 0;
 }

src/picture.c

@@ -118,7 +118,8 @@ static int picture_alloc_with_edges(Dav1dPicture *const p,
     p->p.w = w;
     p->p.h = h;
     p->m.timestamp = INT64_MIN;
-    p->m.duration = p->m.offset = -1;
+    p->m.duration = 0;
+    p->m.offset = -1;
     p->p.layout = layout;
     p->p.bpc = bpc;
     int res = p_allocator->alloc_picture_callback(p, p_allocator->cookie);