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      1 /*
      2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 #ifndef WEBRTC_MODULES_VIDEO_CODING_TIMESTAMP_MAP_H_
     12 #define WEBRTC_MODULES_VIDEO_CODING_TIMESTAMP_MAP_H_
     13 
     14 #include "webrtc/base/scoped_ptr.h"
     15 #include "webrtc/typedefs.h"
     16 
     17 namespace webrtc {
     18 
     19 struct VCMFrameInformation;
     20 
     21 class VCMTimestampMap {
     22  public:
     23   explicit VCMTimestampMap(size_t capacity);
     24   ~VCMTimestampMap();
     25 
     26   // Empty the map.
     27   void Reset();
     28 
     29   void Add(uint32_t timestamp, VCMFrameInformation* data);
     30   VCMFrameInformation* Pop(uint32_t timestamp);
     31 
     32  private:
     33   struct TimestampDataTuple {
     34     uint32_t timestamp;
     35     VCMFrameInformation* data;
     36   };
     37   bool IsEmpty() const;
     38 
     39   rtc::scoped_ptr<TimestampDataTuple[]> ring_buffer_;
     40   const size_t capacity_;
     41   size_t next_add_idx_;
     42   size_t next_pop_idx_;
     43 };
     44 
     45 }  // namespace webrtc
     46 
     47 #endif  // WEBRTC_MODULES_VIDEO_CODING_TIMESTAMP_MAP_H_
     48