Improve

hw/buffer.c

@@ -54,6 +54,11 @@ buffer_t *buffer_open(const char *name, buffer_list_t *buf_list, int index) {
     buf->dma_fd = v4l2_exp.fd;
   }
 
+  if (buf_list->do_capture) {
+    buf->used = 0;
+    buffer_consumed(buf);
+  }
+
   return buf;
 
 error: