tree 64a6fec9e99d8aee6e721d42fd5fc6b2c2b17a3f
parent 2383098d54b6503875bdf0c6b649fa66f22d79ac
author Chong Zhang <chz@google.com> 1523325790 -0700
committer Chong Zhang <chz@google.com> 1523491718 +0000

Use heif embedded thumbnail if available

Add plumbing to retieve the embedded thumbnail from
MPEG4Extractor/ItemTable.

bug: 74395267
Test: CTS MediaMetadataRetriever test; manual test of thumbnail
extraction by browsing new folders containing heif files in
Downloads app.
Change-Id: Ic49f6dfa47eddc229b9f4b0e1835d58df1dce9f8