nuplayer: support widevine sources
- handle widevine:// scheme
- add separate looper for renderer (as it can block initial buffer
handling if all buffers are used)
- initiate secure codecs before source is started
- don't read secure buffers
- share ACodec's input buffers with Widevine source
on the decoder side
- keep track of mediabuffers released by widevine source
- keep track of dequeued input buffers (for safety)
- release mediabuffer when buffer is subsequently dequeued. (This
was hardcoded into OMXCodec to do this when buffer-empties message
was handled, but MediaCodec does not support such functionality.)
Bug: 15699665
Change-Id: I4a369443294e45c644be8b0257010e52db1d7c9b
5 files changed