git.sesse.net Git - casparcg/blob - modules/ffmpeg/producer/ffmpeg_producer.cpp

   1 /*\r
   2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 * This file is part of CasparCG (www.casparcg.com).\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 * Author: Robert Nagy, ronag89@gmail.com\r
  20 */\r
  21 \r
  22 #include "../stdafx.h"\r
  23 \r
  24 #include "ffmpeg_producer.h"\r
  25 \r
  26 #include "../ffmpeg_error.h"\r
  27 \r
  28 #include "muxer/frame_muxer.h"\r
  29 #include "input/input.h"\r
  30 #include "util/util.h"\r
  31 #include "audio/audio_decoder.h"\r
  32 #include "video/video_decoder.h"\r
  33 \r
  34 #include <common/env.h>\r
  35 #include <common/log.h>\r
  36 #include <common/param.h>\r
  37 #include <common/diagnostics/graph.h>\r
  38 #include <common/future.h>\r
  39 \r
  40 #include <core/video_format.h>\r
  41 #include <core/producer/frame_producer.h>\r
  42 #include <core/frame/frame_factory.h>\r
  43 #include <core/frame/draw_frame.h>\r
  44 #include <core/frame/frame_transform.h>\r
  45 #include <core/monitor/monitor.h>\r
  46 \r
  47 #include <boost/algorithm/string.hpp>\r
  48 #include <common/assert.h>\r
  49 #include <boost/assign.hpp>\r
  50 #include <boost/timer.hpp>\r
  51 #include <boost/foreach.hpp>\r
  52 #include <boost/filesystem.hpp>\r
  53 #include <boost/range/algorithm/find_if.hpp>\r
  54 #include <boost/range/algorithm/find.hpp>\r
  55 #include <boost/property_tree/ptree.hpp>\r
  56 #include <boost/regex.hpp>\r
  57 #include <boost/thread/future.hpp>\r
  58 \r
  59 #include <tbb/parallel_invoke.h>\r
  60 \r
  61 #include <limits>\r
  62 #include <memory>\r
  63 #include <queue>\r
  64 \r
  65 namespace caspar { namespace ffmpeg {\r
  66                                 \r
  67 struct ffmpeg_producer : public core::frame_producer\r
  68 {\r
  69         monitor::basic_subject                                                  event_subject_;\r
  70         const std::wstring                                                              filename_;\r
  71         \r
  72         const spl::shared_ptr<diagnostics::graph>               graph_;\r
  73                                         \r
  74         const spl::shared_ptr<core::frame_factory>              frame_factory_;\r
  75         const core::video_format_desc                                   format_desc_;\r
  76 \r
  77         input                                                                                   input_; \r
  78 \r
  79         const double                                                                    fps_;\r
  80         const uint32_t                                                                  start_;\r
  81                 \r
  82         video_decoder                                                                   video_decoder_;\r
  83         audio_decoder                                                                   audio_decoder_; \r
  84         frame_muxer                                                                             muxer_;\r
  85 \r
  86         int64_t                                                                                 frame_number_;\r
  87 \r
  88         core::draw_frame                                                                last_frame_;\r
  89         \r
  90 public:\r
  91         explicit ffmpeg_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, \r
  92                                                          const core::video_format_desc& format_desc, \r
  93                                                          const std::wstring& filename, \r
  94                                                          const std::wstring& filter, \r
  95                                                          bool loop, \r
  96                                                          uint32_t start, \r
  97                                                          uint32_t length) \r
  98                 : filename_(filename)\r
  99                 , frame_factory_(frame_factory)         \r
 100                 , format_desc_(format_desc)\r
 101                 , input_(graph_, filename_, loop, start, length)\r
 102                 , fps_(read_fps(*input_.context(), format_desc_.fps))\r
 103                 , muxer_(fps_, frame_factory, format_desc_, filter)\r
 104                 , start_(start)\r
 105                 , frame_number_(0)\r
 106                 , last_frame_(core::draw_frame::empty())\r
 107         {\r
 108                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 109                 graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f));   \r
 110                 diagnostics::register_graph(graph_);\r
 111                 \r
 112                 try\r
 113                 {\r
 114                         video_decoder_ = video_decoder(input_.context());\r
 115                         video_decoder_.subscribe(event_subject_);\r
 116                         CASPAR_LOG(info) << print() << L" " << video_decoder_.print();\r
 117                 }\r
 118                 catch(averror_stream_not_found&)\r
 119                 {\r
 120                         //CASPAR_LOG(warning) << print() << " No video-stream found. Running without video.";   \r
 121                 }\r
 122                 catch(...)\r
 123                 {\r
 124                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 125                         CASPAR_LOG(warning) << print() << "Failed to open video-stream. Running without video.";        \r
 126                 }\r
 127 \r
 128                 try\r
 129                 {\r
 130                         audio_decoder_ = audio_decoder(input_.context(), format_desc_);\r
 131                         audio_decoder_.subscribe(event_subject_);\r
 132                         CASPAR_LOG(info) << print() << L" " << audio_decoder_.print();\r
 133                 }\r
 134                 catch(averror_stream_not_found&)\r
 135                 {\r
 136                         //CASPAR_LOG(warning) << print() << " No audio-stream found. Running without audio.";   \r
 137                 }\r
 138                 catch(...)\r
 139                 {\r
 140                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 141                         CASPAR_LOG(warning) << print() << " Failed to open audio-stream. Running without audio.";               \r
 142                 }       \r
 143                 \r
 144                 CASPAR_LOG(info) << print() << L" Initialized";\r
 145         }\r
 146 \r
 147         // frame_producer\r
 148         \r
 149         core::draw_frame receive() override\r
 150         {                               \r
 151                 boost::timer frame_timer;\r
 152                                 \r
 153                 auto frame = core::draw_frame::late();          \r
 154                 \r
 155                 if(!try_decode_frame(frame))\r
 156                 {\r
 157                         if(!input_.eof())               \r
 158                                 graph_->set_tag("underflow");   \r
 159                 }\r
 160                                                         \r
 161                 graph_->set_value("frame-time", frame_timer.elapsed()*format_desc_.fps*0.5);\r
 162                 event_subject_  << monitor::event("profiler/time") % frame_timer.elapsed() % (1.0/format_desc_.fps);                    \r
 163                                                                 \r
 164                 graph_->set_text(print());\r
 165 \r
 166                 if(frame != core::draw_frame::late())\r
 167                 {\r
 168                         ++frame_number_;\r
 169                         last_frame_ = frame;\r
 170                 }\r
 171                                 \r
 172                 event_subject_  << monitor::event("file/time")                  % monitor::duration(file_frame_number()/fps_) \r
 173                                                                                                                                 % monitor::duration(file_nb_frames()/fps_)\r
 174                                                 << monitor::event("file/frame")                 % static_cast<int32_t>(file_frame_number())\r
 175                                                                                                                                 % static_cast<int32_t>(file_nb_frames())\r
 176                                                 << monitor::event("file/fps")                   % fps_\r
 177                                                 << monitor::event("file/path")                  % filename_\r
 178                                                 << monitor::event("loop")                               % input_.loop();\r
 179                 \r
 180                 if(frame == core::draw_frame::late() && input_.eof())\r
 181                         return last_frame();\r
 182 \r
 183                 return frame;\r
 184         }\r
 185 \r
 186         core::draw_frame last_frame() const override\r
 187         {\r
 188                 return core::draw_frame::still(last_frame_);\r
 189         }\r
 190         \r
 191         uint32_t nb_frames() const override\r
 192         {\r
 193                 if(input_.loop())\r
 194                         return std::numeric_limits<uint32_t>::max();\r
 195 \r
 196                 uint32_t nb_frames = file_nb_frames();\r
 197 \r
 198                 nb_frames = std::min(input_.length(), nb_frames);\r
 199                 nb_frames = muxer_.calc_nb_frames(nb_frames);\r
 200                 \r
 201                 return nb_frames > start_ ? nb_frames - start_ : 0;\r
 202         }\r
 203 \r
 204         uint32_t file_nb_frames() const\r
 205         {\r
 206                 uint32_t file_nb_frames = 0;\r
 207                 file_nb_frames = std::max(file_nb_frames, video_decoder_.nb_frames());\r
 208                 file_nb_frames = std::max(file_nb_frames, audio_decoder_.nb_frames());\r
 209                 return file_nb_frames;\r
 210         }\r
 211 \r
 212         uint32_t file_frame_number() const\r
 213         {\r
 214                 return video_decoder_.file_frame_number();\r
 215         }\r
 216                 \r
 217         boost::unique_future<std::wstring> call(const std::wstring& param) override\r
 218         {\r
 219                 static const boost::wregex loop_exp(L"LOOP\\s*(?<VALUE>\\d?)?", boost::regex::icase);\r
 220                 static const boost::wregex seek_exp(L"SEEK\\s+(?<VALUE>\\d+)", boost::regex::icase);\r
 221                 static const boost::wregex length_exp(L"LENGTH\\s+(?<VALUE>\\d+)?", boost::regex::icase);\r
 222                 static const boost::wregex start_exp(L"START\\s+(?<VALUE>\\d+)?", boost::regex::icase);\r
 223                 \r
 224                 std::wstring result;\r
 225                         \r
 226                 boost::wsmatch what;\r
 227                 if(boost::regex_match(param, what, loop_exp))\r
 228                 {\r
 229                         auto value = what["VALUE"].str();\r
 230                         if(!value.empty())\r
 231                                 input_.loop(boost::lexical_cast<bool>(value));\r
 232                         result = boost::lexical_cast<std::wstring>(loop());\r
 233                 }\r
 234                 else if(boost::regex_match(param, what, seek_exp))\r
 235                 {\r
 236                         auto value = what["VALUE"].str();\r
 237                         seek(boost::lexical_cast<uint32_t>(value));\r
 238                 }\r
 239                 else if(boost::regex_match(param, what, length_exp))\r
 240                 {\r
 241                         auto value = what["VALUE"].str();\r
 242                         if(!value.empty())\r
 243                                 length(boost::lexical_cast<uint32_t>(value));                   \r
 244                         result = boost::lexical_cast<std::wstring>(length());\r
 245                 }\r
 246                 else if(boost::regex_match(param, what, start_exp))\r
 247                 {\r
 248                         auto value = what["VALUE"].str();\r
 249                         if(!value.empty())\r
 250                                 start(boost::lexical_cast<uint32_t>(value));\r
 251                         result = boost::lexical_cast<std::wstring>(start());\r
 252                 }\r
 253                 else\r
 254                         BOOST_THROW_EXCEPTION(invalid_argument());\r
 255 \r
 256                 return async(launch::deferred, [=]{return result;});\r
 257         }\r
 258                                 \r
 259         std::wstring print() const override\r
 260         {\r
 261                 return L"ffmpeg[" + boost::filesystem::path(filename_).filename().wstring() + L"|" \r
 262                                                   + print_mode() + L"|" \r
 263                                                   + boost::lexical_cast<std::wstring>(file_frame_number()) + L"/" + boost::lexical_cast<std::wstring>(file_nb_frames()) + L"]";\r
 264         }\r
 265 \r
 266         std::wstring name() const override\r
 267         {\r
 268                 return L"ffmpeg";\r
 269         }\r
 270 \r
 271         boost::property_tree::wptree info() const override\r
 272         {\r
 273                 boost::property_tree::wptree info;\r
 274                 info.add(L"type",                               L"ffmpeg");\r
 275                 info.add(L"filename",                   filename_);\r
 276                 info.add(L"width",                              video_decoder_.width());\r
 277                 info.add(L"height",                             video_decoder_.height());\r
 278                 info.add(L"progressive",                video_decoder_.is_progressive());\r
 279                 info.add(L"fps",                                fps_);\r
 280                 info.add(L"loop",                               input_.loop());\r
 281                 info.add(L"frame-number",               frame_number_);\r
 282                 auto nb_frames2 = nb_frames();\r
 283                 info.add(L"nb-frames",                  nb_frames2 == std::numeric_limits<int64_t>::max() ? -1 : nb_frames2);\r
 284                 info.add(L"file-frame-number",  file_frame_number());\r
 285                 info.add(L"file-nb-frames",             file_nb_frames());\r
 286                 return info;\r
 287         }\r
 288         \r
 289         void subscribe(const monitor::observable::observer_ptr& o) override\r
 290         {\r
 291                 event_subject_.subscribe(o);\r
 292         }\r
 293 \r
 294         void unsubscribe(const monitor::observable::observer_ptr& o) override\r
 295         {\r
 296                 event_subject_.unsubscribe(o);\r
 297         }\r
 298 \r
 299         // ffmpeg_producer\r
 300         \r
 301         void loop(bool value)\r
 302         {\r
 303                 input_.loop(value);\r
 304         }\r
 305 \r
 306         bool loop() const\r
 307         {\r
 308                 return input_.loop();\r
 309         }\r
 310 \r
 311         void length(uint32_t value)\r
 312         {\r
 313                 input_.length(value);\r
 314         }\r
 315 \r
 316         uint32_t length()\r
 317         {\r
 318                 return input_.length();\r
 319         }\r
 320         \r
 321         void start(uint32_t value)\r
 322         {\r
 323                 input_.start(value);\r
 324         }\r
 325 \r
 326         uint32_t start()\r
 327         {\r
 328                 return input_.start();\r
 329         }\r
 330 \r
 331         void seek(uint32_t target)\r
 332         {\r
 333                 muxer_.clear();\r
 334                 video_decoder_.clear();\r
 335                 audio_decoder_.clear();\r
 336                         \r
 337                 input_.seek(target);\r
 338                                                 \r
 339                 receive();\r
 340                 receive();\r
 341                 receive();\r
 342                 receive();\r
 343         }\r
 344 \r
 345         std::wstring print_mode() const\r
 346         {\r
 347                 return ffmpeg::print_mode(video_decoder_.width(), video_decoder_.height(), fps_, !video_decoder_.is_progressive());\r
 348         }\r
 349                         \r
 350         bool try_decode_frame(core::draw_frame& result)\r
 351         {\r
 352                 for(int n = 0; n < 32; ++n)\r
 353                 {\r
 354                         if(muxer_.try_pop(result))                      \r
 355                                 return true;                    \r
 356 \r
 357                         std::shared_ptr<AVPacket> pkt;\r
 358                         for(int n = 0; n < 32 && (!video_decoder_.ready() || !audio_decoder_.ready()) && input_.try_pop(pkt); ++n)\r
 359                         {\r
 360                                 video_decoder_.push(pkt);\r
 361                                 audio_decoder_.push(pkt);\r
 362                         }\r
 363                 \r
 364                         std::shared_ptr<AVFrame>                        video;\r
 365                         std::shared_ptr<core::audio_buffer> audio;\r
 366 \r
 367                         tbb::parallel_invoke\r
 368                         (\r
 369                                 [&]\r
 370                                 {\r
 371                                         if(!muxer_.video_ready())\r
 372                                                 video = video_decoder_.poll();  \r
 373                                 },\r
 374                                 [&]\r
 375                                 {               \r
 376                                         if(!muxer_.audio_ready())\r
 377                                                 audio = audio_decoder_.poll();          \r
 378                                 }\r
 379                         );\r
 380                 \r
 381                         muxer_.push(video);\r
 382                         muxer_.push(audio);\r
 383                 }\r
 384 \r
 385                 return false;\r
 386         }\r
 387 };\r
 388 \r
 389 spl::shared_ptr<core::frame_producer> create_producer(const spl::shared_ptr<core::frame_factory>& frame_factory, const core::video_format_desc& format_desc, const std::vector<std::wstring>& params)\r
 390 {               \r
 391         auto filename = probe_stem(env::media_folder() + L"\\" + params.at(0));\r
 392 \r
 393         if(filename.empty())\r
 394                 return core::frame_producer::empty();\r
 395         \r
 396         auto loop               = boost::range::find(params, L"LOOP") != params.end();\r
 397         auto start              = get_param(L"START", params, get_param(L"SEEK", params, static_cast<uint32_t>(0)));\r
 398         auto length             = get_param(L"LENGTH", params, std::numeric_limits<uint32_t>::max());\r
 399         auto filter_str = get_param(L"FILTER", params, L"");    \r
 400                 \r
 401         boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
 402         boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
 403         \r
 404         return spl::make_shared_ptr(std::make_shared<ffmpeg_producer>(frame_factory, format_desc, filename, filter_str, loop, start, length));\r
 405 }\r
 406 \r
 407 }}