Add accelerated video decoder interface, VP8 and H.264 implementations and hook up to V4L2SVDA.

content/common/gpu/media/vaapi_h264_dpb.h

Index: content/common/gpu/media/vaapi_h264_dpb.h
diff --git a/content/common/gpu/media/h264_dpb.h b/content/common/gpu/media/vaapi_h264_dpb.h
similarity index 81%
copy from content/common/gpu/media/h264_dpb.h
copy to content/common/gpu/media/vaapi_h264_dpb.h
index 366c47a78cd298166d5cb12d12d1eff6bce6ce90..aaa56d3aeb9c711a57d0a8e6825c53ff94a64baf 100644
--- a/content/common/gpu/media/h264_dpb.h
+++ b/content/common/gpu/media/vaapi_h264_dpb.h
@@ -5,8 +5,8 @@
 // This file contains an implementation of an H.264 Decoded Picture Buffer
 // used in H264 decoders.
 
-#ifndef CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_
-#define CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_
+#ifndef CONTENT_COMMON_GPU_MEDIA_VAAPI_H264_DPB_H_
+#define CONTENT_COMMON_GPU_MEDIA_VAAPI_H264_DPB_H_
 
 #include <vector>
 
@@ -18,7 +18,7 @@ namespace content {
 
 // A picture (a frame or a field) in the H.264 spec sense.
 // See spec at http://www.itu.int/rec/T-REC-H.264
-struct H264Picture {
+struct VaapiH264Picture {
   enum Field {
     FIELD_NONE,
     FIELD_TOP,
@@ -59,16 +59,16 @@ struct H264Picture {
   media::H264DecRefPicMarking
       ref_pic_marking[media::H264SliceHeader::kRefListSize];
 
-  typedef std::vector<H264Picture*> PtrVector;
+  typedef std::vector<VaapiH264Picture*> PtrVector;
 };
 
 // DPB - Decoded Picture Buffer.
 // Stores decoded pictures that will be used for future display
 // and/or reference.
-class H264DPB {
+class VaapiH264DPB {
  public:
-  H264DPB();
-  ~H264DPB();
+  VaapiH264DPB();
+  ~VaapiH264DPB();
 
   void set_max_num_pics(size_t max_num_pics);
   size_t max_num_pics() { return max_num_pics_; }
@@ -84,7 +84,7 @@ class H264DPB {
   void Clear();
 
   // Store picture in DPB. DPB takes ownership of its resources.
-  void StorePic(H264Picture* pic);
+  void StorePic(VaapiH264Picture* pic);
 
   // Return the number of reference pictures in DPB.
   int CountRefPics();
@@ -93,28 +93,28 @@ class H264DPB {
   void MarkAllUnusedForRef();
 
   // Return a short-term reference picture by its pic_num.
-  H264Picture* GetShortRefPicByPicNum(int pic_num);
+  VaapiH264Picture* GetShortRefPicByPicNum(int pic_num);
 
   // Return a long-term reference picture by its long_term_pic_num.
-  H264Picture* GetLongRefPicByLongTermPicNum(int pic_num);
+  VaapiH264Picture* GetLongRefPicByLongTermPicNum(int pic_num);
 
   // Return the short reference picture with lowest frame_num. Used for sliding
   // window memory management.
-  H264Picture* GetLowestFrameNumWrapShortRefPic();
+  VaapiH264Picture* GetLowestFrameNumWrapShortRefPic();
 
   // Append all pictures that have not been outputted yet to the passed |out|
   // vector, sorted by lowest pic_order_cnt (in output order).
-  void GetNotOutputtedPicsAppending(H264Picture::PtrVector& out);
+  void GetNotOutputtedPicsAppending(VaapiH264Picture::PtrVector& out);
 
   // Append all short term reference pictures to the passed |out| vector.
-  void GetShortTermRefPicsAppending(H264Picture::PtrVector& out);
+  void GetShortTermRefPicsAppending(VaapiH264Picture::PtrVector& out);
 
   // Append all long term reference pictures to the passed |out| vector.
-  void GetLongTermRefPicsAppending(H264Picture::PtrVector& out);
+  void GetLongTermRefPicsAppending(VaapiH264Picture::PtrVector& out);
 
   // Iterators for direct access to DPB contents.
   // Will be invalidated after any of Remove* calls.
-  typedef ScopedVector<H264Picture> Pictures;
+  typedef ScopedVector<VaapiH264Picture> Pictures;
   Pictures::iterator begin() { return pics_.begin(); }
   Pictures::iterator end() { return pics_.end(); }
   Pictures::reverse_iterator rbegin() { return pics_.rbegin(); }
@@ -130,9 +130,9 @@ class H264DPB {
   Pictures pics_;
   size_t max_num_pics_;
 
-  DISALLOW_COPY_AND_ASSIGN(H264DPB);
+  DISALLOW_COPY_AND_ASSIGN(VaapiH264DPB);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_COMMON_GPU_MEDIA_H264_DPB_H_
+#endif  // CONTENT_COMMON_GPU_MEDIA_VAAPI_H264_DPB_H_