Merge branch 'master' of https://github.com/cisco/openh264
Merge branch 'master' of https://github.com/cisco/openh264
Merge branch 'master' of https://github.com/cisco/openh264
avoid encoder crash with random pixel input
Merge branch 'master' of https://github.com/cisco/openh264
Merge pull request #1285 from dongzha/TestRandomEnc

avoid encoder crash with random pixel input
ut_win32
fix Loop filter error under multithreads on encoder when #TEST_BED enabled
Merge pull request #1287 from syureyi/ut_win32

ut_win32
Refine EncDemo.
Revert "ut_win32"

This reverts commit 462f56d4130f4061aa467e5e1178d44c276fdea9.
Merge pull request #1292 from zhilwang/EncDemo_refine

Refine EncDemo.
add new contributors
Add arm UT for Sad,IntraSad,IntraPred.
fix deblockIDC and mutithread logic error
Merge pull request #1294 from zhilwang/arm-ut

Add arm UT for Sad,IntraSad,IntraPred.
Merge pull request #1288 from lyao2/threadIDC

fix Loop filter error under multithreads on encoder when #TEST_BED enabled
Merge pull request #1293 from huili2/contributor

add new contributors
add mv range limitation and related ut
1. add encoder/decoder api test for IDR id and framenum
2. use random value as input, instead of using *.264