tree 6ec12b6f58d71f9853e50472087529e34d6eea17
parent e12eaacdcb1172221016f91f474a094110d329d9
author Ravi Chaudhary <ravi.chaudhary@ittiam.com> 1539264395 +0530
committer Yunqing Wang <yunqingwang@google.com> 1539312917 +0000

Implement row based multi-threading of encoder

Row based multi-threading of encoder has been implemented.

When tested for 20 frames of BasketballDrive_1920x1080_50 content,
with --cpu-used=1 --tile-columns=2 --tile-rows=2, the following
scaling was acheived for 4 threads:

Tile-based:             Row based:
 2.566                   3.331

~23% encode time reduction was seen for row based multi-threading
of encoder when compared with tile-based multi-threading for the
above configuration.

Change-Id: I1e3d431ffcd3d0d398fe6c3aa34755e4d8c5332d