3.1.0
- Support API ChangeMediaType.
- Support API DegradeVideoFile.
- Support API GetCallProgress.
- Support API GetVideoFieldUrl.
- Support API PauseVideoFile.
- Support API PlayVideoFile.
- Support API QueryVideoPlayProgress.
- Support API ResumeVideoFile.
- Support API SeekVideoFile.
- Support API SingleCallByVideo.
- Support API SkipVideoFile.
- Support API UpgradeVideoFile.
- Update API SmartCall: add param NoiseThreshold.