commit 142598f2a35355c6d025a3f4a86c1615f85bfb71
author Sampath Shetty <Sampath.Shetty@dolby.com> Mon Dec 10 13:52:30 2018 +1100
committer Mikhail Naganov <mnaganov@google.com> Mon Dec 10 15:25:16 2018 -0800
tree 060379cb7c8af1dc0bbcda0d787f4efdc10ceeb2
parent 0422892023dcd4616f00028fd223fef056bc0e16

Handle audio presentation switching in AC-4 TS

Audio preselection descriptors(APD) can switch mid-stream in AC-4 TS.
Detect change in APD by monitoring PMT version & CRC. Update new
audio presentation information to the stream metadata so that
MediaExtractor.getAudioPresentations() always returns a latest
audio presentation available.

Bug: 63901775
Bug: 119312182
Test: atest android.media.cts.MediaExtractorTest#testGetAudioPresentations
Change-Id: I7f29de6fb90b4ac1bddd4ddb47f83d35dc7f2345