Change-Id: I2658eae0789f1c4e8d0534a6ff70267058bee2fc
Also includes a dummy packager_test with TestingMuxer. Change-Id: I6a6e6dd77e343ef742adc1846ede203993628943
Create new classes: StreamInfo, AudioStreamInfo, VideoStreamInfo, MediaParser, MediaSample, MP4MediaParser. Change-Id: I19c2fc73964d9f8fc90acaddd1783f4e6ff87d07