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         std::function<void(const safe_ptr<const core::read_frame>&)> 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, const std::function<void(const safe_ptr<const core::read_frame>&)>& output) \r
 111                 : format_desc_(format_desc)\r
 112                 , diag_(diagnostics::create_graph(narrow(print())))\r
 113                 , image_mixer_(format_desc)\r
 114                 , output_(output)\r
 115                 , executor_(L"frame_mixer_device")\r
 116         {\r
 117                 diag_->add_guide("frame-time", 0.5f);   \r
 118                 diag_->set_color("frame-time", diagnostics::color(1.0f, 0.0f, 0.0f));\r
 119                 diag_->set_color("tick-time", diagnostics::color(0.1f, 0.7f, 0.8f));\r
 120                 diag_->set_color("input-buffer", diagnostics::color(1.0f, 1.0f, 0.0f)); \r
 121                 executor_.set_capacity(1);      \r
 122                 executor_.begin_invoke([]\r
 123                 {\r
 124                         SetThreadPriority(GetCurrentThread(), ABOVE_NORMAL_PRIORITY_CLASS);\r
 125                 });\r
 126 \r
 127                 CASPAR_LOG(info) << print() << L" Successfully initialized.";   \r
 128         }\r
 129         \r
 130         boost::unique_future<safe_ptr<const host_buffer>> mix_image(std::map<int, safe_ptr<core::basic_frame>> frames)\r
 131         {               \r
 132                 auto& root_image_transform = boost::fusion::at_key<core::image_transform>(root_transforms_);\r
 133                 auto& image_transforms = boost::fusion::at_key<core::image_transform>(transforms_);\r
 134                 \r
 135                 BOOST_FOREACH(auto& frame, frames)\r
 136                 {\r
 137                         image_mixer_.begin_layer();\r
 138                         \r
 139                         if(format_desc_.mode != core::video_mode::progressive)\r
 140                         {\r
 141                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 142                                 auto frame2 = make_safe<core::basic_frame>(frame.second);\r
 143                                 \r
 144                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 145                                 frame2->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 146 \r
 147                                 if(frame1->get_image_transform() != frame2->get_image_transform())\r
 148                                         core::basic_frame::interlace(frame1, frame2, format_desc_.mode)->accept(image_mixer_);\r
 149                                 else\r
 150                                         frame2->accept(image_mixer_);\r
 151                         }\r
 152                         else\r
 153                         {\r
 154                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 155                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 156                                 frame1->accept(image_mixer_);\r
 157                         }\r
 158 \r
 159                         image_mixer_.end_layer();\r
 160                 }\r
 161 \r
 162                 return image_mixer_.render();\r
 163         }\r
 164 \r
 165         std::vector<short> mix_audio(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 166         {\r
 167                 auto& root_audio_transform = boost::fusion::at_key<core::audio_transform>(root_transforms_);\r
 168                 auto& audio_transforms = boost::fusion::at_key<core::audio_transform>(transforms_);\r
 169 \r
 170                 audio_mixer_.begin_pass();\r
 171                 BOOST_FOREACH(auto& frame, frames)\r
 172                 {\r
 173                         int num = format_desc_.mode == core::video_mode::progressive ? 1 : 2;\r
 174 \r
 175                         auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 176                         frame1->get_audio_transform() = root_audio_transform.fetch_and_tick(num)*audio_transforms[frame.first].fetch_and_tick(num);\r
 177                         frame1->accept(audio_mixer_);\r
 178                 }\r
 179                 return audio_mixer_.end_pass();\r
 180         }\r
 181                 \r
 182         void send(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 183         {                       \r
 184                 executor_.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 = mix_image(frames);\r
 190                         auto audio = mix_audio(frames);\r
 191 \r
 192                         diag_->update_value("frame-time", static_cast<float>(frame_timer_.elapsed()*format_desc_.fps*0.5));\r
 193 \r
 194                         output_(make_safe<const read_frame>(std::move(image), std::move(audio)));\r
 195 \r
 196                         diag_->update_value("tick-time", static_cast<float>(tick_timer_.elapsed()*format_desc_.fps*0.5));\r
 197                         tick_timer_.restart();\r
 198                 });\r
 199                 diag_->set_value("input-buffer", static_cast<float>(executor_.size())/static_cast<float>(executor_.capacity()));\r
 200         }\r
 201                 \r
 202         safe_ptr<core::write_frame> create_frame(void* tag, const core::pixel_format_desc& desc)\r
 203         {               \r
 204                 return image_mixer_.create_frame(tag, desc);\r
 205         }\r
 206                         \r
 207         template<typename T>    \r
 208         void set_transform(const T& transform, int mix_duration, const std::wstring& tween)\r
 209         {\r
 210                 executor_.invoke([&]\r
 211                 {\r
 212                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 213 \r
 214                         auto src = root.fetch();\r
 215                         auto dst = transform;\r
 216                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 217                 });\r
 218         }\r
 219                 \r
 220         template<typename T>\r
 221         void set_transform(int index, const T& transform, int mix_duration, const std::wstring& tween)\r
 222         {\r
 223                 executor_.invoke([&]\r
 224                 {\r
 225                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 226 \r
 227                         auto src = transforms[index].fetch();\r
 228                         auto dst = transform;\r
 229                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 230                 });\r
 231         }\r
 232                 \r
 233         template<typename T>\r
 234         void apply_transform(const std::function<T(const T&)>& transform, int mix_duration, const std::wstring& tween)\r
 235         {\r
 236                 return executor_.invoke([&]\r
 237                 {\r
 238                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 239 \r
 240                         auto src = root.fetch();\r
 241                         auto dst = transform(src);\r
 242                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 243                 });\r
 244         }\r
 245                 \r
 246         template<typename T>\r
 247         void apply_transform(int index, const std::function<T(T)>& transform, int mix_duration, const std::wstring& tween)\r
 248         {\r
 249                 executor_.invoke([&]\r
 250                 {\r
 251                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 252 \r
 253                         auto src = transforms[index].fetch();\r
 254                         auto dst = transform(src);\r
 255                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 256                 });\r
 257         }\r
 258 \r
 259         template<typename T>\r
 260         void reset_transform(int mix_duration, const std::wstring& tween)\r
 261         {\r
 262                 executor_.invoke([&]\r
 263                 {\r
 264                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 265 \r
 266                         BOOST_FOREACH(auto& t, transforms)                      \r
 267                                  t.second = tweened_transform<T>(t.second.fetch(), T(), mix_duration, tween);                   \r
 268                         set_transform(T(), mix_duration, tween);\r
 269                 });\r
 270         }\r
 271 \r
 272         template<typename T>\r
 273         void reset_transform(int index, int mix_duration, const std::wstring& tween)\r
 274         {\r
 275                 executor_.invoke([&]\r
 276                 {               \r
 277                         set_transform(T(), mix_duration, tween);\r
 278                 });\r
 279         }\r
 280         \r
 281         std::wstring print() const\r
 282         {\r
 283                 return L"frame_mixer_device";\r
 284         }\r
 285 };\r
 286         \r
 287 frame_mixer_device::frame_mixer_device(const core::video_format_desc& format_desc, const std::function<void(const safe_ptr<const core::read_frame>&)>& output) : impl_(new implementation(format_desc, output)){}\r
 288 frame_mixer_device::frame_mixer_device(frame_mixer_device&& other) : impl_(std::move(other.impl_)){}\r
 289 void frame_mixer_device::send(const std::map<int, safe_ptr<core::basic_frame>>& frames){impl_->send(frames);}\r
 290 const core::video_format_desc& frame_mixer_device::get_video_format_desc() const { return impl_->format_desc_; }\r
 291 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
 292 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
 293 {\r
 294         // Create bgra frame\r
 295         core::pixel_format_desc desc;\r
 296         desc.pix_fmt = pix_fmt;\r
 297         desc.planes.push_back( core::pixel_format_desc::plane(width, height, 4));\r
 298         return create_frame(tag, desc);\r
 299 }\r
 300                         \r
 301 safe_ptr<core::write_frame> frame_mixer_device::create_frame(void* tag, core::pixel_format::type pix_fmt)\r
 302 {\r
 303         // Create bgra frame with output resolution\r
 304         core::pixel_format_desc desc;\r
 305         desc.pix_fmt = pix_fmt;\r
 306         desc.planes.push_back( core::pixel_format_desc::plane(get_video_format_desc().width, get_video_format_desc().height, 4));\r
 307         return create_frame(tag, desc);\r
 308 }\r
 309 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
 310 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
 311 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
 312 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
 313 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
 314 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
 315 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
 316 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
 317 void frame_mixer_device::reset_image_transform(int mix_duration, const std::wstring& tween){impl_->reset_transform<core::image_transform>(mix_duration, tween);}\r
 318 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
 319 void frame_mixer_device::reset_audio_transform(int mix_duration, const std::wstring& tween){impl_->reset_transform<core::audio_transform>(mix_duration, tween);}\r
 320 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
 321 \r
 322 }}