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 <common/exception/exceptions.h>\r
  31 #include <common/concurrency/executor.h>\r
  32 #include <common/diagnostics/graph.h>\r
  33 #include <common/utility/tweener.h>\r
  34 \r
  35 \r
  36 #include <core/mixer/read_frame.h>\r
  37 #include <core/mixer/write_frame.h>\r
  38 #include <core/producer/frame/basic_frame.h>\r
  39 #include <core/producer/frame/frame_factory.h>\r
  40 #include <core/producer/frame/pixel_format.h>\r
  41 #include <core/producer/frame/audio_transform.h>\r
  42 #include <core/producer/frame/image_transform.h>\r
  43 \r
  44 #include <core/video_format.h>\r
  45 \r
  46 #include <boost/fusion/container/map.hpp>\r
  47 #include <boost/fusion/include/at_key.hpp>\r
  48 #include <boost/timer.hpp>\r
  49 \r
  50 #include <unordered_map>\r
  51 \r
  52 namespace caspar { namespace core {\r
  53                 \r
  54 template<typename T>\r
  55 class tweened_transform\r
  56 {\r
  57         T source_;\r
  58         T dest_;\r
  59         int duration_;\r
  60         int time_;\r
  61         tweener_t tweener_;\r
  62 public: \r
  63         tweened_transform()\r
  64                 : duration_(0)\r
  65                 , time_(0)\r
  66                 , tweener_(get_tweener(L"linear")){}\r
  67         tweened_transform(const T& source, const T& dest, int duration, const std::wstring& tween = L"linear")\r
  68                 : source_(source)\r
  69                 , dest_(dest)\r
  70                 , duration_(duration)\r
  71                 , time_(0)\r
  72                 , tweener_(get_tweener(tween)){}\r
  73         \r
  74         T fetch()\r
  75         {\r
  76                 return time_ == duration_ ? dest_ : tween(static_cast<double>(time_), source_, dest_, static_cast<double>(duration_), tweener_);\r
  77         }\r
  78 \r
  79         T fetch_and_tick(int num)\r
  80         {                                               \r
  81                 time_ = std::min(time_+num, duration_);\r
  82                 return fetch();\r
  83         }\r
  84 };\r
  85 \r
  86 struct frame_mixer_device::implementation : boost::noncopyable\r
  87 {               \r
  88         const core::video_format_desc format_desc_;\r
  89 \r
  90         safe_ptr<diagnostics::graph> diag_;\r
  91         boost::timer frame_timer_;\r
  92         boost::timer tick_timer_;\r
  93 \r
  94         audio_mixer     audio_mixer_;\r
  95         image_mixer image_mixer_;\r
  96 \r
  97         output_t output_;\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 \r
 108         executor executor_;\r
 109 public:\r
 110         implementation(const core::video_format_desc& format_desc) \r
 111                 : format_desc_(format_desc)\r
 112                 , diag_(diagnostics::create_graph(narrow(print())))\r
 113                 , image_mixer_(format_desc)\r
 114                 , executor_(L"frame_mixer_device", true)\r
 115         {\r
 116                 diag_->add_guide("frame-time", 0.5f);   \r
 117                 diag_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 118                 diag_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));\r
 119                 diag_->set_color("input-buffer", diagnostics::color(1.0f, 1.0f, 0.0f)); \r
 120                 executor_.set_capacity(1);      \r
 121                 executor_.begin_invoke([]\r
 122                 {\r
 123                         SetThreadPriority(GetCurrentThread(), ABOVE_NORMAL_PRIORITY_CLASS);\r
 124                 });\r
 125 \r
 126                 CASPAR_LOG(info) << print() << L" Successfully initialized.";   \r
 127         }\r
 128 \r
 129         boost::signals2::connection connect(const output_t::slot_type& subscriber)\r
 130         {\r
 131                 return output_.connect(subscriber);\r
 132         }\r
 133 \r
 134         boost::unique_future<safe_ptr<const host_buffer>> mix_image(std::map<int, safe_ptr<core::basic_frame>> frames)\r
 135         {               \r
 136                 auto& root_image_transform = boost::fusion::at_key<core::image_transform>(root_transforms_);\r
 137                 auto& image_transforms = boost::fusion::at_key<core::image_transform>(transforms_);\r
 138                 \r
 139                 BOOST_FOREACH(auto& frame, frames)\r
 140                 {\r
 141                         image_mixer_.begin_layer();\r
 142                         \r
 143                         if(format_desc_.mode != core::video_mode::progressive)\r
 144                         {\r
 145                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 146                                 auto frame2 = make_safe<core::basic_frame>(frame.second);\r
 147                                 \r
 148                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 149                                 frame2->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 150 \r
 151                                 if(frame1->get_image_transform() != frame2->get_image_transform())\r
 152                                         core::basic_frame::interlace(frame1, frame2, format_desc_.mode)->accept(image_mixer_);\r
 153                                 else\r
 154                                         frame2->accept(image_mixer_);\r
 155                         }\r
 156                         else\r
 157                         {\r
 158                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 159                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 160                                 frame1->accept(image_mixer_);\r
 161                         }\r
 162 \r
 163                         image_mixer_.end_layer();\r
 164                 }\r
 165 \r
 166                 return image_mixer_.render();\r
 167         }\r
 168 \r
 169         std::vector<short> mix_audio(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 170         {\r
 171                 auto& root_audio_transform = boost::fusion::at_key<core::audio_transform>(root_transforms_);\r
 172                 auto& audio_transforms = boost::fusion::at_key<core::audio_transform>(transforms_);\r
 173 \r
 174                 auto audio = audio_mixer_.begin_pass();\r
 175                 BOOST_FOREACH(auto& frame, frames)\r
 176                 {\r
 177                         int num = format_desc_.mode == core::video_mode::progressive ? 1 : 2;\r
 178 \r
 179                         auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 180                         frame1->get_audio_transform() = root_audio_transform.fetch_and_tick(num)*audio_transforms[frame.first].fetch_and_tick(num);\r
 181                         frame1->accept(audio_mixer_);\r
 182                 }\r
 183                 audio_mixer_.end_pass();\r
 184                 return audio;\r
 185         }\r
 186                 \r
 187         void send(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 188         {                       \r
 189                 executor_.invoke([=]\r
 190                 {               \r
 191                         diag_->set_value("input-buffer", static_cast<float>(executor_.size())/static_cast<float>(executor_.capacity()));        \r
 192                         frame_timer_.restart();\r
 193 \r
 194                         auto image = mix_image(frames);\r
 195                         auto audio = mix_audio(frames);\r
 196 \r
 197                         diag_->update_value("frame-time", static_cast<float>(frame_timer_.elapsed()*format_desc_.fps*0.5));\r
 198 \r
 199                         output_(make_safe<const read_frame>(std::move(image), std::move(audio)));\r
 200 \r
 201                         diag_->update_value("tick-time", static_cast<float>(tick_timer_.elapsed()*format_desc_.fps*0.5));\r
 202                         tick_timer_.restart();\r
 203                 });\r
 204                 diag_->set_value("input-buffer", static_cast<float>(executor_.size())/static_cast<float>(executor_.capacity()));\r
 205         }\r
 206                 \r
 207         safe_ptr<core::write_frame> create_frame(void* tag, const core::pixel_format_desc& desc)\r
 208         {\r
 209                 return make_safe<write_frame>(reinterpret_cast<int>(tag), desc, image_mixer_.create_buffers(desc));\r
 210         }\r
 211                         \r
 212         template<typename T>    \r
 213         void set_transform(const T& transform, int mix_duration, const std::wstring& tween)\r
 214         {\r
 215                 executor_.invoke([&]\r
 216                 {\r
 217                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 218 \r
 219                         auto src = root.fetch();\r
 220                         auto dst = transform;\r
 221                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 222                 });\r
 223         }\r
 224                 \r
 225         template<typename T>\r
 226         void set_transform(int index, const T& transform, int mix_duration, const std::wstring& tween)\r
 227         {\r
 228                 executor_.invoke([&]\r
 229                 {\r
 230                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 231 \r
 232                         auto src = transforms[index].fetch();\r
 233                         auto dst = transform;\r
 234                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 235                 });\r
 236         }\r
 237                 \r
 238         template<typename T>\r
 239         void apply_transform(const std::function<T(const T&)>& transform, int mix_duration, const std::wstring& tween)\r
 240         {\r
 241                 return executor_.invoke([&]\r
 242                 {\r
 243                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 244 \r
 245                         auto src = root.fetch();\r
 246                         auto dst = transform(src);\r
 247                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 248                 });\r
 249         }\r
 250                 \r
 251         template<typename T>\r
 252         void apply_transform(int index, const std::function<T(T)>& transform, int mix_duration, const std::wstring& tween)\r
 253         {\r
 254                 executor_.invoke([&]\r
 255                 {\r
 256                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 257 \r
 258                         auto src = transforms[index].fetch();\r
 259                         auto dst = transform(src);\r
 260                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 261                 });\r
 262         }\r
 263 \r
 264         template<typename T>\r
 265         void reset_transform(int mix_duration, const std::wstring& tween)\r
 266         {\r
 267                 executor_.invoke([&]\r
 268                 {\r
 269                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 270 \r
 271                         BOOST_FOREACH(auto& t, transforms)                      \r
 272                                  t.second = tweened_transform<T>(t.second.fetch(), T(), mix_duration, tween);                   \r
 273                         set_transform(T(), mix_duration, tween);\r
 274                 });\r
 275         }\r
 276 \r
 277         template<typename T>\r
 278         void reset_transform(int index, int mix_duration, const std::wstring& tween)\r
 279         {\r
 280                 executor_.invoke([&]\r
 281                 {               \r
 282                         set_transform(T(), mix_duration, tween);\r
 283                 });\r
 284         }\r
 285         \r
 286         std::wstring print() const\r
 287         {\r
 288                 return L"frame_mixer_device";\r
 289         }\r
 290 };\r
 291         \r
 292 frame_mixer_device::frame_mixer_device(const core::video_format_desc& format_desc) : impl_(new implementation(format_desc)){}\r
 293 frame_mixer_device::frame_mixer_device(frame_mixer_device&& other) : impl_(std::move(other.impl_)){}\r
 294 boost::signals2::connection frame_mixer_device::connect(const output_t::slot_type& subscriber){return impl_->connect(subscriber);}\r
 295 void frame_mixer_device::send(const std::map<int, safe_ptr<core::basic_frame>>& frames){impl_->send(frames);}\r
 296 const core::video_format_desc& frame_mixer_device::get_video_format_desc() const { return impl_->format_desc_; }\r
 297 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
 298 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
 299 {\r
 300         // Create bgra frame\r
 301         core::pixel_format_desc desc;\r
 302         desc.pix_fmt = pix_fmt;\r
 303         desc.planes.push_back( core::pixel_format_desc::plane(width, height, 4));\r
 304         return create_frame(tag, desc);\r
 305 }\r
 306                         \r
 307 safe_ptr<core::write_frame> frame_mixer_device::create_frame(void* tag, core::pixel_format::type pix_fmt)\r
 308 {\r
 309         // Create bgra frame with output resolution\r
 310         core::pixel_format_desc desc;\r
 311         desc.pix_fmt = pix_fmt;\r
 312         desc.planes.push_back( core::pixel_format_desc::plane(get_video_format_desc().width, get_video_format_desc().height, 4));\r
 313         return create_frame(tag, desc);\r
 314 }\r
 315 void frame_mixer_device::set_image_transform(const core::image_transform& transform, int mix_duration, const std::wstring& tween){impl_->set_transform<core::image_transform>(transform, mix_duration, tween);}\r
 316 void frame_mixer_device::set_image_transform(int index, const core::image_transform& transform, int mix_duration, const std::wstring& tween){impl_->set_transform<core::image_transform>(index, transform, mix_duration, tween);}\r
 317 void frame_mixer_device::set_audio_transform(const core::audio_transform& transform, int mix_duration, const std::wstring& tween){impl_->set_transform<core::audio_transform>(transform, mix_duration, tween);}\r
 318 void frame_mixer_device::set_audio_transform(int index, const core::audio_transform& transform, int mix_duration, const std::wstring& tween){impl_->set_transform<core::audio_transform>(index, transform, mix_duration, tween);}\r
 319 void frame_mixer_device::apply_image_transform(const std::function<core::image_transform(core::image_transform)>& transform, int mix_duration, const std::wstring& tween){impl_->apply_transform<core::image_transform>(transform, mix_duration, tween);}\r
 320 void frame_mixer_device::apply_image_transform(int index, const std::function<core::image_transform(core::image_transform)>& transform, int mix_duration, const std::wstring& tween){impl_->apply_transform<core::image_transform>(index, transform, mix_duration, tween);}\r
 321 void frame_mixer_device::apply_audio_transform(const std::function<core::audio_transform(core::audio_transform)>& transform, int mix_duration, const std::wstring& tween){impl_->apply_transform<core::audio_transform>(transform, mix_duration, tween);}\r
 322 void frame_mixer_device::apply_audio_transform(int index, const std::function<core::audio_transform(core::audio_transform)>& transform, int mix_duration, const std::wstring& tween){impl_->apply_transform<core::audio_transform>(index, transform, mix_duration, tween);}\r
 323 void frame_mixer_device::reset_image_transform(int mix_duration, const std::wstring& tween){impl_->reset_transform<core::image_transform>(mix_duration, tween);}\r
 324 void frame_mixer_device::reset_image_transform(int index, int mix_duration, const std::wstring& tween){impl_->reset_transform<core::image_transform>(index, mix_duration, tween);}\r
 325 void frame_mixer_device::reset_audio_transform(int mix_duration, const std::wstring& tween){impl_->reset_transform<core::audio_transform>(mix_duration, tween);}\r
 326 void frame_mixer_device::reset_audio_transform(int index, int mix_duration, const std::wstring& tween){impl_->reset_transform<core::audio_transform>(index, mix_duration, tween);}\r
 327 \r
 328 }}