git.sesse.net Git - casparcg/blob - core/mixer/frame_mixer_device.cpp

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This file is part of CasparCG.\r
   5 *\r
   6 *    CasparCG is free software: you can redistribute it and/or modify\r
   7 *    it under the terms of the GNU General Public License as published by\r
   8 *    the Free Software Foundation, either version 3 of the License, or\r
   9 *    (at your option) any later version.\r
  10 *\r
  11 *    CasparCG is distributed in the hope that it will be useful,\r
  12 *    but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14 *    GNU General Public License for more details.\r
  15 \r
  16 *    You should have received a copy of the GNU General Public License\r
  17 *    along with CasparCG.  If not, see <http://www.gnu.org/licenses/>.\r
  18 *\r
  19 */\r
  20 #include "../StdAfx.h"\r
  21 \r
  22 #include "frame_mixer_device.h"\r
  23 \r
  24 #include "read_frame.h"\r
  25 #include "write_frame.h"\r
  26 \r
  27 #include "audio/audio_mixer.h"\r
  28 #include "image/image_mixer.h"\r
  29 \r
  30 #include "../video_channel_context.h"\r
  31 \r
  32 #include <common/exception/exceptions.h>\r
  33 #include <common/concurrency/executor.h>\r
  34 #include <common/diagnostics/graph.h>\r
  35 #include <common/utility/tweener.h>\r
  36 \r
  37 \r
  38 #include <core/mixer/read_frame.h>\r
  39 #include <core/mixer/write_frame.h>\r
  40 #include <core/producer/frame/basic_frame.h>\r
  41 #include <core/producer/frame/frame_factory.h>\r
  42 #include <core/producer/frame/pixel_format.h>\r
  43 #include <core/producer/frame/audio_transform.h>\r
  44 #include <core/producer/frame/image_transform.h>\r
  45 \r
  46 #include <core/video_format.h>\r
  47 \r
  48 #include <boost/fusion/container/map.hpp>\r
  49 #include <boost/fusion/include/at_key.hpp>\r
  50 #include <boost/timer.hpp>\r
  51 \r
  52 #include <unordered_map>\r
  53 \r
  54 namespace caspar { namespace core {\r
  55                 \r
  56 template<typename T>\r
  57 class tweened_transform\r
  58 {\r
  59         T source_;\r
  60         T dest_;\r
  61         int duration_;\r
  62         int time_;\r
  63         tweener_t tweener_;\r
  64 public: \r
  65         tweened_transform()\r
  66                 : duration_(0)\r
  67                 , time_(0)\r
  68                 , tweener_(get_tweener(L"linear")){}\r
  69         tweened_transform(const T& source, const T& dest, int duration, const std::wstring& tween = L"linear")\r
  70                 : source_(source)\r
  71                 , dest_(dest)\r
  72                 , duration_(duration)\r
  73                 , time_(0)\r
  74                 , tweener_(get_tweener(tween)){}\r
  75         \r
  76         T fetch()\r
  77         {\r
  78                 return time_ == duration_ ? dest_ : tween(static_cast<double>(time_), source_, dest_, static_cast<double>(duration_), tweener_);\r
  79         }\r
  80 \r
  81         T fetch_and_tick(int num)\r
  82         {                                               \r
  83                 time_ = std::min(time_+num, duration_);\r
  84                 return fetch();\r
  85         }\r
  86 };\r
  87 \r
  88 struct frame_mixer_device::implementation : boost::noncopyable\r
  89 {               \r
  90         video_channel_context& channel_;\r
  91 \r
  92         safe_ptr<diagnostics::graph> diag_;\r
  93         boost::timer frame_timer_;\r
  94         boost::timer tick_timer_;\r
  95 \r
  96         audio_mixer     audio_mixer_;\r
  97         image_mixer image_mixer_;\r
  98         \r
  99         typedef std::unordered_map<int, tweened_transform<core::image_transform>> image_transforms;\r
 100         typedef std::unordered_map<int, tweened_transform<core::audio_transform>> audio_transforms;\r
 101 \r
 102         boost::fusion::map<boost::fusion::pair<core::image_transform, image_transforms>,\r
 103                                         boost::fusion::pair<core::audio_transform, audio_transforms>> transforms_;\r
 104         \r
 105         boost::fusion::map<boost::fusion::pair<core::image_transform, tweened_transform<core::image_transform>>,\r
 106                                         boost::fusion::pair<core::audio_transform, tweened_transform<core::audio_transform>>> root_transforms_;\r
 107 public:\r
 108         implementation(video_channel_context& video_channel) \r
 109                 : channel_(video_channel)\r
 110                 , diag_(diagnostics::create_graph(narrow(print())))\r
 111                 , image_mixer_(channel_)\r
 112         {\r
 113                 diag_->add_guide("frame-time", 0.5f);   \r
 114                 diag_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 115                 diag_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));\r
 116         \r
 117                 CASPAR_LOG(info) << print() << L" Successfully initialized.";   \r
 118         }\r
 119                         \r
 120         safe_ptr<read_frame> operator()(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 121         {                               \r
 122                 frame_timer_.restart();\r
 123 \r
 124                 auto image = mix_image(frames);\r
 125                 auto audio = mix_audio(frames);\r
 126                         \r
 127                 diag_->update_value("frame-time", frame_timer_.elapsed()*channel_.format_desc.fps*0.5);\r
 128                 \r
 129                 diag_->update_value("tick-time", tick_timer_.elapsed()*channel_.format_desc.fps*0.5);\r
 130                 tick_timer_.restart();\r
 131 \r
 132                 return make_safe<read_frame>(std::move(image), std::move(audio));\r
 133         }\r
 134                         \r
 135         safe_ptr<core::write_frame> create_frame(void* tag, const core::pixel_format_desc& desc)\r
 136         {               \r
 137                 return image_mixer_.create_frame(tag, desc);\r
 138         }\r
 139                         \r
 140         template<typename T>    \r
 141         void set_transform(const T& transform, unsigned int mix_duration, const std::wstring& tween)\r
 142         {\r
 143                 channel_.execution.invoke([&]\r
 144                 {\r
 145                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 146 \r
 147                         auto src = root.fetch();\r
 148                         auto dst = transform;\r
 149                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 150                 });\r
 151         }\r
 152                 \r
 153         template<typename T>\r
 154         void set_transform(int index, const T& transform, unsigned int mix_duration, const std::wstring& tween)\r
 155         {\r
 156                 channel_.execution.invoke([&]\r
 157                 {\r
 158                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 159 \r
 160                         auto src = transforms[index].fetch();\r
 161                         auto dst = transform;\r
 162                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 163                 });\r
 164         }\r
 165                 \r
 166         template<typename T>\r
 167         void apply_transform(const std::function<T(const T&)>& transform, unsigned int mix_duration, const std::wstring& tween)\r
 168         {\r
 169                 return channel_.execution.invoke([&]\r
 170                 {\r
 171                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 172 \r
 173                         auto src = root.fetch();\r
 174                         auto dst = transform(src);\r
 175                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 176                 });\r
 177         }\r
 178                 \r
 179         template<typename T>\r
 180         void apply_transform(int index, const std::function<T(T)>& transform, unsigned int mix_duration, const std::wstring& tween)\r
 181         {\r
 182                 channel_.execution.invoke([&]\r
 183                 {\r
 184                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 185 \r
 186                         auto src = transforms[index].fetch();\r
 187                         auto dst = transform(src);\r
 188                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 189                 });\r
 190         }\r
 191 \r
 192         template<typename T>\r
 193         void reset_transform(unsigned int mix_duration, const std::wstring& tween)\r
 194         {\r
 195                 channel_.execution.invoke([&]\r
 196                 {\r
 197                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 198 \r
 199                         BOOST_FOREACH(auto& t, transforms)                      \r
 200                                  t.second = tweened_transform<T>(t.second.fetch(), T(), mix_duration, tween);                   \r
 201                         set_transform(T(), mix_duration, tween);\r
 202                 });\r
 203         }\r
 204 \r
 205         template<typename T>\r
 206         void reset_transform(int index, unsigned int mix_duration, const std::wstring& tween)\r
 207         {\r
 208                 channel_.execution.invoke([&]\r
 209                 {               \r
 210                         set_transform(T(), mix_duration, tween);\r
 211                 });\r
 212         }\r
 213         \r
 214         std::wstring print() const\r
 215         {\r
 216                 return L"frame_mixer_device";\r
 217         }\r
 218 \r
 219 private:\r
 220                 \r
 221         safe_ptr<host_buffer> mix_image(std::map<int, safe_ptr<core::basic_frame>> frames)\r
 222         {               \r
 223                 auto& root_image_transform = boost::fusion::at_key<core::image_transform>(root_transforms_);\r
 224                 auto& image_transforms = boost::fusion::at_key<core::image_transform>(transforms_);\r
 225                 \r
 226                 BOOST_FOREACH(auto& frame, frames)\r
 227                 {\r
 228                         image_mixer_.begin_layer();\r
 229                         \r
 230                         if(channel_.format_desc.mode != core::video_mode::progressive)\r
 231                         {\r
 232                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 233                                 auto frame2 = make_safe<core::basic_frame>(frame.second);\r
 234                                 \r
 235                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 236                                 frame2->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 237 \r
 238                                 if(frame1->get_image_transform() != frame2->get_image_transform())\r
 239                                         core::basic_frame::interlace(frame1, frame2, channel_.format_desc.mode)->accept(image_mixer_);\r
 240                                 else\r
 241                                         frame2->accept(image_mixer_);\r
 242                         }\r
 243                         else\r
 244                         {\r
 245                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 246                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 247                                 frame1->accept(image_mixer_);\r
 248                         }\r
 249 \r
 250                         image_mixer_.end_layer();\r
 251                 }\r
 252 \r
 253                 return image_mixer_.render();\r
 254         }\r
 255 \r
 256         std::vector<int16_t> mix_audio(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 257         {\r
 258                 auto& root_audio_transform = boost::fusion::at_key<core::audio_transform>(root_transforms_);\r
 259                 auto& audio_transforms = boost::fusion::at_key<core::audio_transform>(transforms_);\r
 260 \r
 261                 BOOST_FOREACH(auto& frame, frames)\r
 262                 {\r
 263                         const unsigned int num = channel_.format_desc.mode == core::video_mode::progressive ? 1 : 2;\r
 264 \r
 265                         auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 266                         frame1->get_audio_transform() = root_audio_transform.fetch_and_tick(num)*audio_transforms[frame.first].fetch_and_tick(num);\r
 267                         frame1->accept(audio_mixer_);\r
 268                 }\r
 269 \r
 270                 return audio_mixer_.mix();\r
 271         }\r
 272 };\r
 273         \r
 274 frame_mixer_device::frame_mixer_device(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}\r
 275 safe_ptr<core::read_frame> frame_mixer_device::operator()(const std::map<int, safe_ptr<core::basic_frame>>& frames){ return (*impl_)(frames);}\r
 276 const core::video_format_desc& frame_mixer_device::get_video_format_desc() const { return impl_->channel_.format_desc; }\r
 277 safe_ptr<core::write_frame> frame_mixer_device::create_frame(void* tag, const core::pixel_format_desc& desc){ return impl_->create_frame(tag, desc); }          \r
 278 safe_ptr<core::write_frame> frame_mixer_device::create_frame(void* tag, size_t width, size_t height, core::pixel_format::type pix_fmt)\r
 279 {\r
 280         // Create bgra frame\r
 281         core::pixel_format_desc desc;\r
 282         desc.pix_fmt = pix_fmt;\r
 283         desc.planes.push_back( core::pixel_format_desc::plane(width, height, 4));\r
 284         return create_frame(tag, desc);\r
 285 }\r
 286 void frame_mixer_device::set_image_transform(const core::image_transform& transform, unsigned int mix_duration, const std::wstring& tween){impl_->set_transform<core::image_transform>(transform, mix_duration, tween);}\r
 287 void frame_mixer_device::set_image_transform(int index, const core::image_transform& transform, unsigned int mix_duration, const std::wstring& tween){impl_->set_transform<core::image_transform>(index, transform, mix_duration, tween);}\r
 288 void frame_mixer_device::set_audio_transform(const core::audio_transform& transform, unsigned int mix_duration, const std::wstring& tween){impl_->set_transform<core::audio_transform>(transform, mix_duration, tween);}\r
 289 void frame_mixer_device::set_audio_transform(int index, const core::audio_transform& transform, unsigned int mix_duration, const std::wstring& tween){impl_->set_transform<core::audio_transform>(index, transform, mix_duration, tween);}\r
 290 void frame_mixer_device::apply_image_transform(const std::function<core::image_transform(core::image_transform)>& transform, unsigned int mix_duration, const std::wstring& tween){impl_->apply_transform<core::image_transform>(transform, mix_duration, tween);}\r
 291 void frame_mixer_device::apply_image_transform(int index, const std::function<core::image_transform(core::image_transform)>& transform, unsigned int mix_duration, const std::wstring& tween){impl_->apply_transform<core::image_transform>(index, transform, mix_duration, tween);}\r
 292 void frame_mixer_device::apply_audio_transform(const std::function<core::audio_transform(core::audio_transform)>& transform, unsigned int mix_duration, const std::wstring& tween){impl_->apply_transform<core::audio_transform>(transform, mix_duration, tween);}\r
 293 void frame_mixer_device::apply_audio_transform(int index, const std::function<core::audio_transform(core::audio_transform)>& transform, unsigned int mix_duration, const std::wstring& tween){impl_->apply_transform<core::audio_transform>(index, transform, mix_duration, tween);}\r
 294 void frame_mixer_device::reset_image_transform(unsigned int mix_duration, const std::wstring& tween){impl_->reset_transform<core::image_transform>(mix_duration, tween);}\r
 295 void frame_mixer_device::reset_image_transform(int index, unsigned int mix_duration, const std::wstring& tween){impl_->reset_transform<core::image_transform>(index, mix_duration, tween);}\r
 296 void frame_mixer_device::reset_audio_transform(unsigned int mix_duration, const std::wstring& tween){impl_->reset_transform<core::audio_transform>(mix_duration, tween);}\r
 297 void frame_mixer_device::reset_audio_transform(int index, unsigned int mix_duration, const std::wstring& tween){impl_->reset_transform<core::audio_transform>(index, mix_duration, tween);}\r
 298 }}