3208e20673
This replaces calls to unescape except for SEI unescaping. Use the new ParsableNalUnitBitArray for reading the slice header in HLS access unit detection and slice_type reading. Unescape the SPS before parsing in FLV and MP4. Before this change it was parsed in its original (escaped) form. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=118777869