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