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