video_capture_device.cc revision 116680a4aac90f2aa7413d9095a592090648e557 
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
10namespace media {
11
12const 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
22VideoCaptureDevice::Name::Name() {}
23
24VideoCaptureDevice::Name::Name(const std::string& name, const std::string& id)
25    : device_name_(name), unique_id_(id) {}
26
27#if defined(OS_WIN)
28VideoCaptureDevice::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)
35VideoCaptureDevice::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
43VideoCaptureDevice::Name::Name(const std::string& name,
44                               const std::string& id,
45                               const CaptureApiType api_type,
46                               const TransportType transport_type)
47    : device_name_(name),
48      unique_id_(id),
49      capture_api_class_(api_type),
50      transport_type_(transport_type) {}
51#endif
52
53VideoCaptureDevice::Name::~Name() {}
54
55VideoCaptureDevice::~VideoCaptureDevice() {}
56
57int VideoCaptureDevice::GetPowerLineFrequencyForLocation() const {
58  std::string current_country = base::CountryCodeForCurrentTimezone();
59  if (current_country.empty())
60    return 0;
61  // Sorted out list of countries with 60Hz power line frequency, from
62  // http://en.wikipedia.org/wiki/Mains_electricity_by_country
63  const char* countries_using_60Hz[] = {
64      "AI", "AO", "AS", "AW", "AZ", "BM", "BR", "BS", "BZ", "CA", "CO",
65      "CR", "CU", "DO", "EC", "FM", "GT", "GU", "GY", "HN", "HT", "JP",
66      "KN", "KR", "KY", "MS", "MX", "NI", "PA", "PE", "PF", "PH", "PR",
67      "PW", "SA", "SR", "SV", "TT", "TW", "UM", "US", "VG", "VI", "VE"};
68  const char** countries_using_60Hz_end =
69      countries_using_60Hz + arraysize(countries_using_60Hz);
70  if (std::find(countries_using_60Hz, countries_using_60Hz_end,
71                current_country) == countries_using_60Hz_end) {
72    return kPowerLine50Hz;
73  }
74  return kPowerLine60Hz;
75}
76
77}  // namespace media
78