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1 /* | |
2 * libjingle | |
3 * Copyright 2009 Google Inc. | |
4 * | |
5 * Redistribution and use in source and binary forms, with or without | |
6 * modification, are permitted provided that the following conditions are met: | |
7 * | |
8 * 1. Redistributions of source code must retain the above copyright notice, | |
9 * this list of conditions and the following disclaimer. | |
10 * 2. Redistributions in binary form must reproduce the above copyright notice, | |
11 * this list of conditions and the following disclaimer in the documentation | |
12 * and/or other materials provided with the distribution. | |
13 * 3. The name of the author may not be used to endorse or promote products | |
14 * derived from this software without specific prior written permission. | |
15 * | |
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
26 */ | |
27 | |
28 /* | |
29 * Author: lexnikitin@google.com (Alexey Nikitin) | |
30 * | |
31 * V4LLookup provides basic functionality to work with V2L2 devices in Linux | |
32 * The functionality is implemented as a class with virtual methods for | |
33 * the purpose of unit testing. | |
34 */ | |
35 #ifndef TALK_MEDIA_DEVICES_V4LLOOKUP_H_ | |
36 #define TALK_MEDIA_DEVICES_V4LLOOKUP_H_ | |
37 | |
38 #include <string> | |
39 | |
40 #ifdef WEBRTC_LINUX | |
41 namespace cricket { | |
42 class V4LLookup { | |
43 public: | |
44 virtual ~V4LLookup() {} | |
45 | |
46 static bool IsV4L2Device(const std::string& device_path) { | |
47 return GetV4LLookup()->CheckIsV4L2Device(device_path); | |
48 } | |
49 | |
50 static void SetV4LLookup(V4LLookup* v4l_lookup) { | |
51 v4l_lookup_ = v4l_lookup; | |
52 } | |
53 | |
54 static V4LLookup* GetV4LLookup() { | |
55 if (!v4l_lookup_) { | |
56 v4l_lookup_ = new V4LLookup(); | |
57 } | |
58 return v4l_lookup_; | |
59 } | |
60 | |
61 protected: | |
62 static V4LLookup* v4l_lookup_; | |
63 // Making virtual so it is easier to mock | |
64 virtual bool CheckIsV4L2Device(const std::string& device_path); | |
65 }; | |
66 | |
67 } // namespace cricket | |
68 | |
69 #endif // WEBRTC_LINUX | |
70 #endif // TALK_MEDIA_DEVICES_V4LLOOKUP_H_ | |
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