src/media/video/capture/video_capture_device.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "media/video/capture/video_capture_device.h"
   6
   7 #include "base/i18n/timezone.h"
   8 #include "base/strings/string_util.h"
   9
  10 namespace media {
  11
  12 const std::string VideoCaptureDevice::Name::GetNameAndModel() const {
  13   const std::string model_id = GetModel();
  14   if (model_id.empty())
  15     return device_name_;
  16   const std::string suffix = " (" + model_id + ")";
  17   if (EndsWith(device_name_, suffix, true))  // |true| means case-sensitive.
  18     return device_name_;
  19   return device_name_ + suffix;
  20 }
  21
  22 VideoCaptureDevice::Name::Name() {}
  23
  24 VideoCaptureDevice::Name::Name(const std::string& name, const std::string& id)
  25     : device_name_(name), unique_id_(id) {}
  26
  27 #if defined(OS_WIN)
  28 VideoCaptureDevice::Name::Name(const std::string& name,
  29                                const std::string& id,
  30                                const CaptureApiType api_type)
  31     : device_name_(name), unique_id_(id), capture_api_class_(api_type) {}
  32 #endif
  33
  34 #if defined(OS_MACOSX)
  35 VideoCaptureDevice::Name::Name(const std::string& name,
  36                                const std::string& id,
  37                                const CaptureApiType api_type)
  38     : device_name_(name),
  39       unique_id_(id),
  40       capture_api_class_(api_type),
  41       transport_type_(OTHER_TRANSPORT),
  42       is_blacklisted_(false) {}
  43
  44 VideoCaptureDevice::Name::Name(const std::string& name,
  45                                const std::string& id,
  46                                const CaptureApiType api_type,
  47                                const TransportType transport_type)
  48     : device_name_(name),
  49       unique_id_(id),
  50       capture_api_class_(api_type),
  51       transport_type_(transport_type),
  52       is_blacklisted_(false) {}
  53 #endif
  54
  55 VideoCaptureDevice::Name::~Name() {}
  56
  57 VideoCaptureDevice::~VideoCaptureDevice() {}
  58
  59 int VideoCaptureDevice::GetPowerLineFrequencyForLocation() const {
  60   std::string current_country = base::CountryCodeForCurrentTimezone();
  61   if (current_country.empty())
  62     return 0;
  63   // Sorted out list of countries with 60Hz power line frequency, from
  64   // http://en.wikipedia.org/wiki/Mains_electricity_by_country
  65   const char* countries_using_60Hz[] = {
  66       "AI", "AO", "AS", "AW", "AZ", "BM", "BR", "BS", "BZ", "CA", "CO",
  67       "CR", "CU", "DO", "EC", "FM", "GT", "GU", "GY", "HN", "HT", "JP",
  68       "KN", "KR", "KY", "MS", "MX", "NI", "PA", "PE", "PF", "PH", "PR",
  69       "PW", "SA", "SR", "SV", "TT", "TW", "UM", "US", "VG", "VI", "VE"};
  70   const char** countries_using_60Hz_end =
  71       countries_using_60Hz + arraysize(countries_using_60Hz);
  72   if (std::find(countries_using_60Hz, countries_using_60Hz_end,
  73                 current_country) == countries_using_60Hz_end) {
  74     return kPowerLine50Hz;
  75   }
  76   return kPowerLine60Hz;
  77 }
  78
  79 }  // namespace media