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/*
* libjingle
* Copyright 2009 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Author: lexnikitin@google.com (Alexey Nikitin)
*
* V4LLookup provides basic functionality to work with V2L2 devices in Linux
* The functionality is implemented as a class with virtual methods for
* the purpose of unit testing.
*/
#ifndef TALK_MEDIA_DEVICES_V4LLOOKUP_H_
#define TALK_MEDIA_DEVICES_V4LLOOKUP_H_
#include <string>
#ifdef LINUX
namespace cricket {
class V4LLookup {
public:
virtual ~V4LLookup() {}
static bool IsV4L2Device(const std::string& device_path) {
return GetV4LLookup()->CheckIsV4L2Device(device_path);
}
static void SetV4LLookup(V4LLookup* v4l_lookup) {
v4l_lookup_ = v4l_lookup;
}
static V4LLookup* GetV4LLookup() {
if (!v4l_lookup_) {
v4l_lookup_ = new V4LLookup();
}
return v4l_lookup_;
}
protected:
static V4LLookup* v4l_lookup_;
// Making virtual so it is easier to mock
virtual bool CheckIsV4L2Device(const std::string& device_path);
};
} // namespace cricket
#endif // LINUX
#endif // TALK_MEDIA_DEVICES_V4LLOOKUP_H_
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