升级gradle和kotlin version，MediaMuxer添加原视频旋转角度信息和音频轨道添加。#2
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fansangg wants to merge 1 commit intokenneycode:masterfrom
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升级gradle和kotlin version，MediaMuxer添加原视频旋转角度信息和音频轨道添加。#2fansangg wants to merge 1 commit intokenneycode:masterfrom fansangg:master
fansangg wants to merge 1 commit intokenneycode:masterfrom
fansangg:master
