commit f2e5bb37ef013d63cf783452affb69c30dd6b7e6
author Debargha Mukherjee <debargha@google.com> Mon Mar 26 14:35:24 2018 -0700
committer Debargha Mukherjee <debargha@google.com> Tue Mar 27 02:35:30 2018 +0000
tree 470495e080ee491aa5b28ee958267d692789840c
parent 1d7217e344187fa2c7c6b1ed8b9ee8ece7c5bd1c

Make sure that seq params are changed only once

Ensure with a check that sequence level coding tools flags
cannot be changed after the frist legitimate av1_pack_bitstream()
call that writes the sequence header.

Change-Id: I9cee8ace9b584e8bc6d81e0ebf3a1c891c93cd37

av1/encoder/encoder.h

diff --git a/av1/encoder/encoder.h b/av1/encoder/encoder.h
index ec6350d..a53976d 100644
--- a/av1/encoder/encoder.h
+++ b/av1/encoder/encoder.h
@@ -562,6 +562,11 @@
   int resize_buffer_underflow;
   int resize_count;
 
+  // Sequence parameters have been transmitted already and locked
+  // or not. Once locked av1_change_config cannot change the seq
+  // parameters.
+  int seq_params_locked;
+
   // VARIANCE_AQ segment map refresh
   int vaq_refresh;