Alexandre Lision | be732d4 | 2015-02-18 11:48:42 -0500 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2015 Savoir-Faire Linux Inc. |
| 3 | * Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com> |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 3 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Additional permission under GNU GPL version 3 section 7: |
| 20 | * |
| 21 | * If you modify this program, or any covered work, by linking or |
| 22 | * combining it with the OpenSSL project's OpenSSL library (or a |
| 23 | * modified version of that library), containing parts covered by the |
| 24 | * terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc. |
| 25 | * grants you additional permission to convey the resulting work. |
| 26 | * Corresponding Source for a non-source form of such a combination |
| 27 | * shall include the source code for the parts of OpenSSL used as well |
| 28 | * as that of the covered work. |
| 29 | */ |
| 30 | |
| 31 | #include <algorithm> |
| 32 | #include <cassert> |
| 33 | #include <climits> |
| 34 | #include <map> |
| 35 | #include <string> |
| 36 | #include <sstream> |
| 37 | #include <stdexcept> |
| 38 | #include <string> |
| 39 | #include <vector> |
| 40 | |
| 41 | #include "logger.h" |
| 42 | #include "../video_device.h" |
| 43 | |
| 44 | #import <AVFoundation/AVFoundation.h> |
| 45 | |
| 46 | namespace ring { namespace video { |
| 47 | |
| 48 | class VideoDeviceImpl { |
| 49 | public: |
| 50 | /** |
| 51 | * @throw std::runtime_error |
| 52 | */ |
| 53 | VideoDeviceImpl(const std::string& path); |
| 54 | |
| 55 | std::string device; |
| 56 | std::string name; |
| 57 | |
| 58 | std::vector<std::string> getChannelList() const; |
| 59 | std::vector<std::string> getSizeList(const std::string& channel) const; |
| 60 | std::vector<std::string> getSizeList() const; |
| 61 | std::vector<std::string> getRateList(const std::string& channel, const std::string& size) const; |
| 62 | float getRate(unsigned rate) const; |
| 63 | |
| 64 | VideoSettings getSettings() const; |
| 65 | void applySettings(VideoSettings settings); |
| 66 | |
| 67 | DeviceParams getDeviceParams() const; |
| 68 | |
| 69 | private: |
| 70 | AVCaptureDevice* avDevice_; |
| 71 | }; |
| 72 | |
| 73 | VideoDeviceImpl::VideoDeviceImpl(const std::string& uniqueID) |
| 74 | : device(uniqueID) |
| 75 | , avDevice_([AVCaptureDevice deviceWithUniqueID: |
| 76 | [NSString stringWithCString:uniqueID.c_str() encoding:[NSString defaultCStringEncoding]]]) |
| 77 | { |
| 78 | name = [[avDevice_ localizedName] UTF8String]; |
| 79 | // Set default settings |
| 80 | applySettings(VideoSettings()); |
| 81 | } |
| 82 | |
| 83 | void |
| 84 | VideoDeviceImpl::applySettings(VideoSettings settings) |
| 85 | { |
| 86 | //TODO: not supported for now on OSX |
| 87 | // Set preferences or fallback to defaults. |
| 88 | // channel_ = getChannel(settings["channel"]); |
| 89 | // size_ = channel_.getSize(settings["size"]); |
| 90 | // rate_ = size_.getRate(settings["rate"]); |
| 91 | } |
| 92 | |
| 93 | DeviceParams |
| 94 | VideoDeviceImpl::getDeviceParams() const |
| 95 | { |
| 96 | DeviceParams params; |
| 97 | params.input = "[" + device + "]"; |
| 98 | params.format = "avfoundation"; |
| 99 | // No channel support for now |
| 100 | // params.channel = channel_.idx; |
| 101 | auto format = [avDevice_ activeFormat]; |
| 102 | CMVideoDimensions dimensions = |
| 103 | CMVideoFormatDescriptionGetDimensions(format.formatDescription); |
| 104 | params.width = dimensions.width; |
| 105 | params.height = dimensions.height; |
| 106 | auto frameRate = (AVFrameRateRange*) |
| 107 | [format.videoSupportedFrameRateRanges objectAtIndex:0]; |
| 108 | params.framerate = frameRate.maxFrameRate; |
| 109 | return params; |
| 110 | } |
| 111 | |
| 112 | VideoSettings |
| 113 | VideoDeviceImpl::getSettings() const |
| 114 | { |
| 115 | VideoSettings settings; |
| 116 | |
| 117 | settings.name = [[avDevice_ localizedName] UTF8String]; |
| 118 | |
| 119 | return settings; |
| 120 | } |
| 121 | |
| 122 | VideoDevice::VideoDevice(const std::string& path) : |
| 123 | deviceImpl_(new VideoDeviceImpl(path)) |
| 124 | { |
| 125 | node_ = path; |
| 126 | name = deviceImpl_->name; |
| 127 | } |
| 128 | |
| 129 | DeviceParams |
| 130 | VideoDevice::getDeviceParams() const |
| 131 | { |
| 132 | return deviceImpl_->getDeviceParams(); |
| 133 | } |
| 134 | |
| 135 | void |
| 136 | VideoDevice::applySettings(VideoSettings settings) |
| 137 | { |
| 138 | deviceImpl_->applySettings(settings); |
| 139 | } |
| 140 | |
| 141 | VideoSettings |
| 142 | VideoDevice::getSettings() const |
| 143 | { |
| 144 | return deviceImpl_->getSettings(); |
| 145 | } |
| 146 | |
| 147 | std::vector<std::string> |
| 148 | VideoDeviceImpl::getSizeList() const |
| 149 | { |
| 150 | return getSizeList("default"); |
| 151 | } |
| 152 | |
| 153 | std::vector<std::string> |
| 154 | VideoDeviceImpl::getRateList(const std::string& channel, const std::string& size) const |
| 155 | { |
| 156 | auto format = [avDevice_ activeFormat]; |
| 157 | auto frameRate = (AVFrameRateRange*) |
| 158 | [format.videoSupportedFrameRateRanges objectAtIndex:0]; |
| 159 | |
| 160 | std::vector<std::string> v; |
| 161 | std::stringstream ss; |
| 162 | ss << frameRate.maxFrameRate; |
| 163 | v.push_back(ss.str()); |
| 164 | return v; |
| 165 | } |
| 166 | |
| 167 | std::vector<std::string> |
| 168 | VideoDeviceImpl::getSizeList(const std::string& channel) const |
| 169 | { |
| 170 | std::vector<std::string> v; |
| 171 | |
| 172 | auto format = [avDevice_ activeFormat]; |
| 173 | auto dimensions = |
| 174 | CMVideoFormatDescriptionGetDimensions(format.formatDescription); |
| 175 | |
| 176 | std::stringstream ss; |
| 177 | ss << dimensions.width << "x" << dimensions.height; |
| 178 | v.push_back(ss.str()); |
| 179 | |
| 180 | return v; |
| 181 | } |
| 182 | |
| 183 | std::vector<std::string> VideoDeviceImpl::getChannelList() const |
| 184 | { |
| 185 | return {"default"}; |
| 186 | } |
| 187 | |
| 188 | DRing::VideoCapabilities |
| 189 | VideoDevice::getCapabilities() const |
| 190 | { |
| 191 | DRing::VideoCapabilities cap; |
| 192 | |
| 193 | for (const auto& chan : deviceImpl_->getChannelList()) |
| 194 | for (const auto& size : deviceImpl_->getSizeList(chan)) |
| 195 | cap[chan][size] = deviceImpl_->getRateList(chan, size); |
| 196 | |
| 197 | return cap; |
| 198 | } |
| 199 | |
| 200 | VideoDevice::~VideoDevice() |
| 201 | {} |
| 202 | |
| 203 | }} // namespace ring::video |