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/utility/tweener.h>\r
  35 \r
  36 \r
  37 #include <core/mixer/read_frame.h>\r
  38 #include <core/mixer/write_frame.h>\r
  39 #include <core/producer/frame/basic_frame.h>\r
  40 #include <core/producer/frame/frame_factory.h>\r
  41 #include <core/producer/frame/pixel_format.h>\r
  42 #include <core/producer/frame/audio_transform.h>\r
  43 #include <core/producer/frame/image_transform.h>\r
  44 \r
  45 #include <core/video_format.h>\r
  46 \r
  47 #include <boost/fusion/container/map.hpp>\r
  48 #include <boost/fusion/include/at_key.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         video_channel_context& channel_;\r
  89         \r
  90         audio_mixer     audio_mixer_;\r
  91         image_mixer image_mixer_;\r
  92         \r
  93         typedef std::unordered_map<int, tweened_transform<core::image_transform>> image_transforms;\r
  94         typedef std::unordered_map<int, tweened_transform<core::audio_transform>> audio_transforms;\r
  95 \r
  96         boost::fusion::map<boost::fusion::pair<core::image_transform, image_transforms>,\r
  97                                         boost::fusion::pair<core::audio_transform, audio_transforms>> transforms_;\r
  98         \r
  99         boost::fusion::map<boost::fusion::pair<core::image_transform, tweened_transform<core::image_transform>>,\r
 100                                         boost::fusion::pair<core::audio_transform, tweened_transform<core::audio_transform>>> root_transforms_;\r
 101 public:\r
 102         implementation(video_channel_context& video_channel) \r
 103                 : channel_(video_channel)\r
 104                 , image_mixer_(channel_)\r
 105         {       \r
 106                 CASPAR_LOG(info) << print() << L" Successfully initialized.";   \r
 107         }\r
 108                         \r
 109         safe_ptr<read_frame> execute(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 110         {                               \r
 111                 auto image = mix_image(frames);\r
 112                 auto audio = mix_audio(frames);\r
 113                         \r
 114                 return make_safe<read_frame>(std::move(image), std::move(audio));\r
 115         }\r
 116                         \r
 117         safe_ptr<core::write_frame> create_frame(void* tag, const core::pixel_format_desc& desc)\r
 118         {               \r
 119                 return image_mixer_.create_frame(tag, desc);\r
 120         }\r
 121                         \r
 122         template<typename T>    \r
 123         void set_transform(const T& transform, unsigned int mix_duration, const std::wstring& tween)\r
 124         {\r
 125                 channel_.execution().invoke([&]\r
 126                 {\r
 127                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 128 \r
 129                         auto src = root.fetch();\r
 130                         auto dst = transform;\r
 131                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 132                 });\r
 133         }\r
 134                 \r
 135         template<typename T>\r
 136         void set_transform(int index, const T& transform, unsigned int mix_duration, const std::wstring& tween)\r
 137         {\r
 138                 channel_.execution().invoke([&]\r
 139                 {\r
 140                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 141 \r
 142                         auto src = transforms[index].fetch();\r
 143                         auto dst = transform;\r
 144                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 145                 });\r
 146         }\r
 147                 \r
 148         template<typename T>\r
 149         void apply_transform(const std::function<T(const T&)>& transform, unsigned int mix_duration, const std::wstring& tween)\r
 150         {\r
 151                 return channel_.execution().invoke([&]\r
 152                 {\r
 153                         auto& root = boost::fusion::at_key<T>(root_transforms_);\r
 154 \r
 155                         auto src = root.fetch();\r
 156                         auto dst = transform(src);\r
 157                         root = tweened_transform<T>(src, dst, mix_duration, tween);\r
 158                 });\r
 159         }\r
 160                 \r
 161         template<typename T>\r
 162         void apply_transform(int index, const std::function<T(T)>& transform, unsigned int mix_duration, const std::wstring& tween)\r
 163         {\r
 164                 channel_.execution().invoke([&]\r
 165                 {\r
 166                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 167 \r
 168                         auto src = transforms[index].fetch();\r
 169                         auto dst = transform(src);\r
 170                         transforms[index] = tweened_transform<T>(src, dst, mix_duration, tween);\r
 171                 });\r
 172         }\r
 173 \r
 174         template<typename T>\r
 175         void reset_transform(unsigned int mix_duration, const std::wstring& tween)\r
 176         {\r
 177                 channel_.execution().invoke([&]\r
 178                 {\r
 179                         auto& transforms = boost::fusion::at_key<T>(transforms_);\r
 180 \r
 181                         BOOST_FOREACH(auto& t, transforms)                      \r
 182                                  t.second = tweened_transform<T>(t.second.fetch(), T(), mix_duration, tween);                   \r
 183                         set_transform(T(), mix_duration, tween);\r
 184                 });\r
 185         }\r
 186 \r
 187         template<typename T>\r
 188         void reset_transform(int index, unsigned int mix_duration, const std::wstring& tween)\r
 189         {\r
 190                 channel_.execution().invoke([&]\r
 191                 {               \r
 192                         set_transform(T(), mix_duration, tween);\r
 193                 });\r
 194         }\r
 195         \r
 196         std::wstring print() const\r
 197         {\r
 198                 return L"frame_mixer_device";\r
 199         }\r
 200 \r
 201 private:\r
 202                 \r
 203         safe_ptr<host_buffer> mix_image(std::map<int, safe_ptr<core::basic_frame>> frames)\r
 204         {               \r
 205                 auto& root_image_transform = boost::fusion::at_key<core::image_transform>(root_transforms_);\r
 206                 auto& image_transforms = boost::fusion::at_key<core::image_transform>(transforms_);\r
 207                 \r
 208                 BOOST_FOREACH(auto& frame, frames)\r
 209                 {\r
 210                         image_mixer_.begin_layer();\r
 211                         \r
 212                         if(channel_.get_format_desc().mode != core::video_mode::progressive)\r
 213                         {\r
 214                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 215                                 auto frame2 = make_safe<core::basic_frame>(frame.second);\r
 216                                 \r
 217                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 218                                 frame2->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 219 \r
 220                                 if(frame1->get_image_transform() != frame2->get_image_transform())\r
 221                                         core::basic_frame::interlace(frame1, frame2, channel_.get_format_desc().mode)->accept(image_mixer_);\r
 222                                 else\r
 223                                         frame2->accept(image_mixer_);\r
 224                         }\r
 225                         else\r
 226                         {\r
 227                                 auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 228                                 frame1->get_image_transform() = root_image_transform.fetch_and_tick(1)*image_transforms[frame.first].fetch_and_tick(1);\r
 229                                 frame1->accept(image_mixer_);\r
 230                         }\r
 231 \r
 232                         image_mixer_.end_layer();\r
 233                 }\r
 234 \r
 235                 return image_mixer_.render();\r
 236         }\r
 237 \r
 238         std::vector<int16_t> mix_audio(const std::map<int, safe_ptr<core::basic_frame>>& frames)\r
 239         {\r
 240                 auto& root_audio_transform = boost::fusion::at_key<core::audio_transform>(root_transforms_);\r
 241                 auto& audio_transforms = boost::fusion::at_key<core::audio_transform>(transforms_);\r
 242 \r
 243                 BOOST_FOREACH(auto& frame, frames)\r
 244                 {\r
 245                         const unsigned int num = channel_.get_format_desc().mode == core::video_mode::progressive ? 1 : 2;\r
 246 \r
 247                         auto frame1 = make_safe<core::basic_frame>(frame.second);\r
 248                         frame1->get_audio_transform() = root_audio_transform.fetch_and_tick(num)*audio_transforms[frame.first].fetch_and_tick(num);\r
 249                         frame1->accept(audio_mixer_);\r
 250                 }\r
 251 \r
 252                 return audio_mixer_.mix();\r
 253         }\r
 254 };\r
 255         \r
 256 frame_mixer_device::frame_mixer_device(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}\r
 257 safe_ptr<core::read_frame> frame_mixer_device::execute(const std::map<int, safe_ptr<core::basic_frame>>& frames){ return impl_->execute(frames);}\r
 258 core::video_format_desc frame_mixer_device::get_video_format_desc() const { return impl_->channel_.get_format_desc(); }\r
 259 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
 260 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
 261 {\r
 262         // Create bgra frame\r
 263         core::pixel_format_desc desc;\r
 264         desc.pix_fmt = pix_fmt;\r
 265         desc.planes.push_back( core::pixel_format_desc::plane(width, height, 4));\r
 266         return create_frame(tag, desc);\r
 267 }\r
 268 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
 269 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
 270 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
 271 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
 272 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
 273 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
 274 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
 275 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
 276 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
 277 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
 278 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
 279 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
 280 }}