Cannot play a mov file with alac audio

When a mov file includes alac audio, the alac codec
info is included under bellow box:
stsd->alac->wave->alac

The .mov cannot work with the original code for alac.
So we need to handle it by judging if it is a mov file.

Bug: 134102659
Test: Play a mov video with alac audio and check if it
can play normally.

Change-Id: Ibadfbd5b4036b220bd6ebf431fd53e4d1a69be8b