Increase MAX_BUFFER in inspect to accommodate 8k video

Change-Id: If025832eceded12d3b5f6af54a4f17df35091739

examples/inspect.c

diff --git a/examples/inspect.c b/examples/inspect.c
index 9e9e546..f7422ac 100644
--- a/examples/inspect.c
+++ b/examples/inspect.c
@@ -42,7 +42,7 @@
 #include "common/video_reader.h"
 
 // Max JSON buffer size.
-const int MAX_BUFFER = 1024 * 1024 * 32;
+const int MAX_BUFFER = 1024 * 1024 * 256;
 
 typedef enum {
   ACCOUNTING_LAYER = 1,