MediaCodecPlayer implementation (stage 3 - browser seek and surface change)

media/base/android/media_codec_decoder.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_
 #define MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_
 
 #include "base/android/scoped_java_ref.h"
 #include "base/callback.h"
 #include "base/macros.h"
@@ skipping 212 matching lines @@
   // a delayed task to do it at a later time,
   virtual void Render(int buffer_index,
                       size_t size,
                       bool render_output,
                       base::TimeDelta pts,
                       bool eos_encountered) = 0;
 
   // Returns the number of delayed task (we might have them for video).
   virtual int NumDelayedRenderTasks() const;
 
-  // Releases output buffers that are dequeued and not released yet
-  // because their rendering is delayed (video).
-  virtual void ReleaseDelayedBuffers() {}
+  // Releases output buffers that are dequeued and not released yet (video)
+  // if the |release| parameter is set and then remove the references to them.
+  virtual void ClearDelayedBuffers(bool release) {}
 
 #ifndef NDEBUG
   // For video, checks that access unit is the key frame or stand-alone EOS.
   virtual void VerifyUnitIsKeyFrame(const AccessUnit* unit) const {}
 #endif
 
   // Helper methods.
 
   // Notifies the decoder if the frame is the last one.
   void CheckLastFrame(bool eos_encountered, bool has_delayed_tasks);
 
   // Protected data.
 
   // Object for posting tasks on Media thread.
   scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
 
   // Controls Android MediaCodec
   scoped_ptr<MediaCodecBridge> media_codec_bridge_;
 
   // We call MediaCodecBridge on this thread for both
   // input and output buffers.
   base::Thread decoder_thread_;
 
   // The queue of access units.
   AccessUnitQueue au_queue_;
 
+  // Flag forces reconfiguration even if |media_codec_bridge_| exists. Currently
+  // is set by video decoder when the video surface changes.
+  bool needs_reconfigure_;
+
  private:
   enum DecoderState {
     kStopped = 0,
     kPrefetching,
     kPrefetched,
     kRunning,
     kStopping,
+    kInEmergencyStop,
     kError,
   };
 
   // Helper method that processes an error from MediaCodec.
   void OnCodecError();
 
   // Requests data. Ensures there is no more than one request at a time.
   void RequestData();
 
   // Prefetching callback that is posted to Media thread
@@ skipping 61 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaCodecDecoder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaCodecDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_CODEC_DECODER_H_