gz/common/Video.hh

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/*
 * Copyright (C) 2016 Open Source Robotics Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
*/
#ifndef GZ_COMMON_VIDEO_HH_
#define GZ_COMMON_VIDEO_HH_
 
#include <string>
#include <memory>
 
#include <gz/common/config.hh>
#include <gz/common/av/Export.hh>
#include <gz/common/SuppressWarning.hh>
 
struct AVFormatContext;
struct AVCodecContext;
struct AVFrame;
struct AVPicture;
struct SwsContext;
 
namespace ignition
{
  namespace common
  {
    // Forward declare private data class
    class VideoPrivate;
 
    class IGNITION_COMMON_AV_VISIBLE Video
    {
      public: Video();
 
      public: virtual ~Video();
 
      public: bool Load(const std::string &_filename);
 
      public: int Width() const;
 
      public: int Height() const;
 
      public:
        using Length = std::chrono::duration<int64_t, std::ratio<1, 1000000>>;
 
      public: Length Duration() const;
 
      public: bool NextFrame(unsigned char **_buffer);
 
      private: void Cleanup();
 
      IGN_COMMON_WARN_IGNORE__DLL_INTERFACE_MISSING
      private: std::unique_ptr<VideoPrivate> dataPtr;
      IGN_COMMON_WARN_RESUME__DLL_INTERFACE_MISSING
    };
  }
}
#endif