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      1 /*
      2  * Copyright 2009, Google Inc.
      3  * Author: lexnikitin (at) google.com (Alexey Nikitin)
      4  *
      5  * V4LLookup provides basic functionality to work with V2L2 devices in Linux
      6  * The functionality is implemented as a class with virtual methods for
      7  * the purpose of unit testing.
      8  */
      9 #ifndef TALK_SESSION_PHONE_V4LLOOKUP_H_
     10 #define TALK_SESSION_PHONE_V4LLOOKUP_H_
     11 
     12 #include <string>
     13 
     14 #ifdef LINUX
     15 namespace cricket {
     16 class V4LLookup {
     17   public:
     18     virtual ~V4LLookup() {}
     19 
     20     static bool IsV4L2Device(const std::string& device_path) {
     21       return GetV4LLookup()->CheckIsV4L2Device(device_path);
     22     }
     23 
     24     static void SetV4LLookup(V4LLookup* v4l_lookup) {
     25       v4l_lookup_ = v4l_lookup;
     26     }
     27 
     28     static V4LLookup* GetV4LLookup() {
     29       return v4l_lookup_;
     30     }
     31 
     32   protected:
     33     static V4LLookup* v4l_lookup_;
     34     // Making virtual so it is easier to mock
     35     virtual bool CheckIsV4L2Device(const std::string& device_path);
     36 
     37 };
     38 }  // namespace cricket
     39 #endif
     40 #endif  // TALK_SESSION_PHONE_V4LLOOKUP_H_
     41