commit 308e91f504bfca90e9a6d17b9779203fc3a4a93b
author Chong Zhang <chz@google.com> Wed Jun 10 15:27:56 2020 -0700
committer Chong Zhang <chz@google.com> Wed Jun 10 17:17:56 2020 -0700
tree 522682fa41f3ac1e787d3add8da158c17bb1f24d
parent 19253093cffe6eedf4811870f9929936268c97fd

Transcoder: change src/dst to fd

MediaTranscoder takes fd as input from upper level service.

Also, leave file delete to client, since service side can't do file
create/delete. File opening is done by a callback into the app;
it seems delete should just handled by app side itself.

Minor refactor to reduce header pollution when included.

bug: 154734285
bug: 156003955, 152091443, 155918341
test: transcoder unit tests.

Change-Id: I4eb8a7d9fea2ccb479f09888353ac4e65bac16f8