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, 6 insertions, 0 deletions

diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
index 4fa0dbd..c6fc237 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
@@ -26,6 +26,7 @@ namespace android {
 
 struct ABuffer;
 struct MediaCodec;
+struct MediaBuffer;
 
 struct NuPlayer::Decoder : public AHandler {
     Decoder(const sp<AMessage> &notify,
@@ -34,6 +35,7 @@ struct NuPlayer::Decoder : public AHandler {
     virtual void configure(const sp<AMessage> &format);
     virtual void init();
 
+    status_t getInputBuffers(Vector<sp<ABuffer> > *dstBuffers) const;
     virtual void signalFlush();
     virtual void signalResume();
     virtual void initiateShutdown();
@@ -60,6 +62,7 @@ private:
     enum {
         kWhatCodecNotify        = 'cdcN',
         kWhatConfigure          = 'conf',
+        kWhatGetInputBuffers    = 'gInB',
         kWhatInputBufferFilled  = 'inpF',
         kWhatRenderBuffer       = 'rndr',
         kWhatFlush              = 'flus',
@@ -77,11 +80,14 @@ private:
 
     Vector<sp<ABuffer> > mInputBuffers;
     Vector<sp<ABuffer> > mOutputBuffers;
+    Vector<bool> mInputBufferIsDequeued;
+    Vector<MediaBuffer *> mMediaBuffers;
 
     void handleError(int32_t err);
     bool handleAnInputBuffer();
     bool handleAnOutputBuffer();
 
+    void releaseAndResetMediaBuffers();
     void requestCodecNotification();
     bool isStaleReply(const sp<AMessage> &msg);