Log Message:
openh264: updated to 2.3.1

v2.3.1

update SHAREDLIB_MAJORVERSION value in Makefile

v2.3.0

Decoder bug fix to correct the B-frame order in some case
Fixes to avoid hanging for multi-thread decoding
Some Enhancements and fixes for rate control
Assembly optimization for loongson platform
Some minor bug fixes

v2.2.0

Add support for B-slice error concealment
Thread decoding support for multi-slice frame
SIMD optimization for loongson platform
Support the arm64 compilation on Windows and MacOS platform
Some Bug fixes for B-frame decoding
Some minor bug fixes