ReleaseOutputBuffer to surface back and front buffers where possible.

content/common/gpu/media/android_video_decode_accelerator.h

 // Copyright (c) 2013 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 CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include <list>
@@ skipping 69 matching lines @@
 
     // Notify strategy that a picture buffer has been assigned.
     virtual void AssignOnePictureBuffer(
         const media::PictureBuffer& picture_buffer,
         bool have_context) {}
 
     // Notify strategy that a picture buffer has been reused.
     virtual void ReuseOnePictureBuffer(
         const media::PictureBuffer& picture_buffer) {}
 
+    // Attempts to free up codec output buffers by rendering early.
+    virtual void MaybeRenderEarly() {}
+
     // Notify strategy that we have a new android MediaCodec instance.  This
     // happens when we're starting up or re-configuring mid-stream.  Any
     // previously provided codec should no longer be referenced.
     virtual void CodecChanged(media::VideoCodecBridge* codec) = 0;
 
     // Notify the strategy that a frame is available.  This callback can happen
     // on any thread at any time.
     virtual void OnFrameAvailable() = 0;
 
     // Whether the pictures produced by this backing strategy are overlayable.
@@ skipping 282 matching lines @@
 
   // WeakPtrFactory for posting tasks back to |this|.
   base::WeakPtrFactory<AndroidVideoDecodeAccelerator> weak_this_factory_;
 
   friend class AndroidVideoDecodeAcceleratorTest;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_ANDROID_VIDEO_DECODE_ACCELERATOR_H_