Update external/libvpx to v1.6.0

Change-Id: I9425a3d3c3524d43823bc89f9f03556420c3dd42

1 files changed, 30 insertions, 0 deletions

diff --git a/libvpx/CHANGELOG b/libvpx/CHANGELOG
index 7746cc6c4..795d395f9 100644
--- a/libvpx/CHANGELOG
+++ b/libvpx/CHANGELOG
@@ -1,3 +1,33 @@
+2016-07-20 v1.6.0 "Khaki Campbell Duck"
+  This release improves upon the VP9 encoder and speeds up the encoding and
+  decoding processes.
+
+  - Upgrading:
+    This release is ABI incompatible with 1.5.0 due to a new 'color_range' enum
+    in vpx_image and some minor changes to the VP8_COMP structure.
+
+    The default key frame interval for VP9 has changed from 128 to 9999.
+
+  - Enhancement:
+    A core focus has been performance for low end Intel processors. SSSE3
+    instructions such as 'pshufb' have been avoided and instructions have been
+    reordered to better accommodate the more constrained pipelines.
+
+    As a result, devices based on Celeron processors have seen substantial
+    decoding improvements. From Indian Runner Duck to Javan Whistling Duck,
+    decoding speed improved between 10 and 30%. Between Javan Whistling Duck
+    and Khaki Campbell Duck, it improved another 10 to 15%.
+
+    While Celeron benefited most, Core-i5 also improved 5% and 10% between the
+    respective releases.
+
+    Realtime performance for WebRTC for both speed and quality has received a
+    lot of attention.
+
+  - Bug Fixes:
+    A number of fuzzing issues, found variously by Mozilla, Chromium and others,
+    have been fixed and we strongly recommend updating.
+
 2015-11-09 v1.5.0 "Javan Whistling Duck"
   This release improves upon the VP9 encoder and speeds up the encoding and
   decoding processes.