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Video.hh
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1 /*
2  * Copyright 2012 Nate Koenig
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16 */
17 #ifndef _VIDEO_HH_
18 #define _VIDEO_HH_
19 
20 #include <string>
21 
22 struct AVFormatContext;
23 struct AVCodecContext;
24 struct AVFrame;
25 struct AVPicture;
26 struct SwsContext;
27 
28 namespace gazebo
29 {
30  namespace common
31  {
34 
37  class Video
38  {
40  public: Video();
41 
43  public: virtual ~Video();
44 
49  public: bool Load(const std::string &_filename);
50 
53  public: int GetWidth() const;
54 
57  public: int GetHeight() const;
58 
62  public: bool GetNextFrame(unsigned char **_buffer);
63 
65  private: void Cleanup();
66 
68  private: AVFormatContext *formatCtx;
69 
71  private: AVCodecContext *codecCtx;
72 
74  private: AVFrame *avFrame;
75 
77  private: AVPicture *pic;
78 
80  private: SwsContext *swsCtx;
81 
83  private: int videoStream;
84  };
86  }
87 }
88 #endif