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

1 files changed, 3 insertions, 0 deletions

diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
index f520ff7..8592ec2 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
@@ -26,6 +26,8 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MetaData.h>
 
+#include <inttypes.h>
+
 namespace android {
 
 // static
@@ -502,6 +504,7 @@ void NuPlayer::Renderer::postDrainVideoQueue() {
         }
     }
 
+    ALOGW_IF(delayUs > 500000, "unusually high delayUs: %" PRId64, delayUs);
     msg->post(delayUs);
 
     mDrainVideoQueuePending = true;