git.sesse.net Git - casparcg/blob - modules/ffmpeg/producer/ffmpeg_producer.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 "ffmpeg_producer.h"\r
  23 \r
  24 #include "../ffmpeg_error.h"\r
  25 \r
  26 #include "muxer/frame_muxer.h"\r
  27 #include "input/input.h"\r
  28 #include "util/util.h"\r
  29 #include "audio/audio_decoder.h"\r
  30 #include "video/video_decoder.h"\r
  31 \r
  32 #include <common/env.h>\r
  33 #include <common/utility/assert.h>\r
  34 #include <common/diagnostics/graph.h>\r
  35 \r
  36 #include <core/video_format.h>\r
  37 #include <core/producer/frame_producer.h>\r
  38 #include <core/producer/frame/frame_factory.h>\r
  39 #include <core/producer/frame/basic_frame.h>\r
  40 #include <core/producer/frame/frame_transform.h>\r
  41 \r
  42 #include <boost/algorithm/string.hpp>\r
  43 #include <boost/assign.hpp>\r
  44 #include <boost/timer.hpp>\r
  45 #include <boost/foreach.hpp>\r
  46 #include <boost/filesystem.hpp>\r
  47 #include <boost/range/algorithm/find_if.hpp>\r
  48 #include <boost/range/algorithm/find.hpp>\r
  49 #include <boost/regex.hpp>\r
  50 \r
  51 #include <tbb/parallel_invoke.h>\r
  52 \r
  53 #include <limits>\r
  54 #include <memory>\r
  55 #include <queue>\r
  56 \r
  57 namespace caspar { namespace ffmpeg {\r
  58                                 \r
  59 struct ffmpeg_producer : public core::frame_producer\r
  60 {\r
  61         const std::wstring                                                                                      filename_;\r
  62         \r
  63         const safe_ptr<diagnostics::graph>                                                      graph_;\r
  64         boost::timer                                                                                            frame_timer_;\r
  65         boost::timer                                                                                            video_timer_;\r
  66         boost::timer                                                                                            audio_timer_;\r
  67                                         \r
  68         const safe_ptr<core::frame_factory>                                                     frame_factory_;\r
  69         const core::video_format_desc                                                           format_desc_;\r
  70 \r
  71         input                                                                                                           input_; \r
  72         std::unique_ptr<video_decoder>                                                          video_decoder_;\r
  73         std::unique_ptr<audio_decoder>                                                          audio_decoder_; \r
  74         std::unique_ptr<frame_muxer>                                                            muxer_;\r
  75 \r
  76         const double                                                                                            fps_;\r
  77         const int                                                                                                       start_;\r
  78         const bool                                                                                                      loop_;\r
  79         const size_t                                                                                            length_;\r
  80 \r
  81         safe_ptr<core::basic_frame>                                                                     last_frame_;\r
  82         \r
  83         std::queue<std::pair<safe_ptr<core::basic_frame>, size_t>>      frame_buffer_;\r
  84 \r
  85         int64_t                                                                                                         frame_number_;\r
  86         int64_t                                                                                                         file_frame_number_;;\r
  87         \r
  88 public:\r
  89         explicit ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, const std::wstring& filter, bool loop, int start, size_t length) \r
  90                 : filename_(filename)\r
  91                 , frame_factory_(frame_factory)         \r
  92                 , format_desc_(frame_factory->get_video_format_desc())\r
  93                 , input_(graph_, filename_, loop, start, length)\r
  94                 , fps_(read_fps(*input_.context(), format_desc_.fps))\r
  95                 , start_(start)\r
  96                 , loop_(loop)\r
  97                 , length_(length)\r
  98                 , last_frame_(core::basic_frame::empty())\r
  99                 , frame_number_(0)\r
 100         {\r
 101                 graph_->add_guide("frame-time", 0.5);\r
 102                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 103                 graph_->set_color("underflow", diagnostics::color(0.6f, 0.3f, 0.9f));   \r
 104                 diagnostics::register_graph(graph_);\r
 105                 \r
 106                 try\r
 107                 {\r
 108                         video_decoder_.reset(new video_decoder(input_.context()));\r
 109                 }\r
 110                 catch(averror_stream_not_found&)\r
 111                 {\r
 112                         CASPAR_LOG(warning) << "No video-stream found. Running without video."; \r
 113                 }\r
 114                 catch(...)\r
 115                 {\r
 116                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 117                         CASPAR_LOG(warning) << "Failed to open video-stream. Running without video.";   \r
 118                 }\r
 119 \r
 120                 try\r
 121                 {\r
 122                         audio_decoder_.reset(new audio_decoder(input_.context(), frame_factory->get_video_format_desc()));\r
 123                 }\r
 124                 catch(averror_stream_not_found&)\r
 125                 {\r
 126                         CASPAR_LOG(warning) << "No audio-stream found. Running without audio."; \r
 127                 }\r
 128                 catch(...)\r
 129                 {\r
 130                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 131                         CASPAR_LOG(warning) << "Failed to open audio-stream. Running without audio.";           \r
 132                 }       \r
 133 \r
 134                 if(!video_decoder_ && !audio_decoder_)\r
 135                         BOOST_THROW_EXCEPTION(averror_stream_not_found() << msg_info("No streams found"));\r
 136 \r
 137                 muxer_.reset(new frame_muxer(fps_, frame_factory, filter));\r
 138         }\r
 139 \r
 140         // frame_producer\r
 141         \r
 142         virtual safe_ptr<core::basic_frame> receive(int hints) override\r
 143         {               \r
 144                 frame_timer_.restart();\r
 145                 \r
 146                 for(int n = 0; n < 16 && frame_buffer_.size() < 2; ++n)\r
 147                         try_decode_frame(hints);\r
 148                 \r
 149                 graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 150                                 \r
 151                 if(frame_buffer_.empty() && input_.eof())\r
 152                         return last_frame();\r
 153 \r
 154                 if(frame_buffer_.empty())\r
 155                 {\r
 156                         graph_->add_tag("underflow");   \r
 157                         return core::basic_frame::late();                       \r
 158                 }\r
 159                 \r
 160                 auto frame = frame_buffer_.front(); \r
 161                 frame_buffer_.pop();\r
 162                 \r
 163                 ++frame_number_;\r
 164                 file_frame_number_ = frame.second;\r
 165 \r
 166                 graph_->set_text(print());\r
 167 \r
 168                 return last_frame_ = frame.first;\r
 169         }\r
 170 \r
 171         virtual safe_ptr<core::basic_frame> last_frame() const override\r
 172         {\r
 173                 return disable_audio(last_frame_);\r
 174         }\r
 175 \r
 176         virtual int64_t nb_frames() const override\r
 177         {\r
 178                 if(loop_)\r
 179                         return std::numeric_limits<int64_t>::max();\r
 180 \r
 181                 auto nb_frames = file_nb_frames();\r
 182 \r
 183                 nb_frames = std::min(static_cast<int64_t>(length_), nb_frames);\r
 184                 nb_frames = muxer_->calc_nb_frames(nb_frames);\r
 185                 \r
 186                 return nb_frames - start_;\r
 187         }\r
 188 \r
 189         virtual int64_t file_nb_frames() const override\r
 190         {\r
 191                 int64_t file_nb_frames = 0;\r
 192                 file_nb_frames = std::max(file_nb_frames, video_decoder_ ? video_decoder_->nb_frames() : 0);\r
 193                 file_nb_frames = std::max(file_nb_frames, audio_decoder_ ? audio_decoder_->nb_frames() : 0);\r
 194                 return file_nb_frames;\r
 195         }\r
 196 \r
 197         virtual int64_t frame_number() const override\r
 198         {\r
 199                 return frame_number_;\r
 200         }\r
 201 \r
 202         virtual int64_t file_frame_number() const override\r
 203         {\r
 204                 return file_frame_number_;\r
 205         }\r
 206 \r
 207         virtual boost::unique_future<std::wstring> call(const std::wstring& param) override\r
 208         {\r
 209                 boost::promise<std::wstring> promise;\r
 210                 promise.set_value(do_call(param));\r
 211                 return promise.get_future();\r
 212         }\r
 213                                 \r
 214         virtual std::wstring print() const override\r
 215         {\r
 216                 if(video_decoder_)\r
 217                 {\r
 218                         return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"|" + print_mode(video_decoder_->width(), video_decoder_->height(), fps_, !video_decoder_->is_progressive())\r
 219                                                           + L"|" + boost::lexical_cast<std::wstring>(file_frame_number()) + L"/" + boost::lexical_cast<std::wstring>(file_nb_frames()) + L"]";\r
 220                 }\r
 221                 \r
 222                 return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"]";\r
 223         }\r
 224 \r
 225         // ffmpeg_producer\r
 226                                         \r
 227         std::wstring do_call(const std::wstring& param)\r
 228         {\r
 229                 static const boost::wregex loop_exp(L"LOOP\\s*(?<VALUE>\\d?)", boost::regex::icase);\r
 230                 static const boost::wregex seek_exp(L"SEEK\\s+(?<VALUE>\\d+)", boost::regex::icase);\r
 231                 \r
 232                 boost::wsmatch what;\r
 233                 if(boost::regex_match(param, what, loop_exp))\r
 234                 {\r
 235                         if(!what["VALUE"].str().empty())\r
 236                                 input_.loop(boost::lexical_cast<bool>(what["VALUE"].str()));\r
 237                         return boost::lexical_cast<std::wstring>(input_.loop());\r
 238                 }\r
 239                 if(boost::regex_match(param, what, seek_exp))\r
 240                 {\r
 241                         input_.seek(boost::lexical_cast<int64_t>(what["VALUE"].str()));\r
 242                         return L"";\r
 243                 }\r
 244 \r
 245                 BOOST_THROW_EXCEPTION(invalid_argument());\r
 246         }\r
 247 \r
 248         void try_decode_frame(int hints)\r
 249         {\r
 250                 std::shared_ptr<AVPacket> pkt;\r
 251 \r
 252                 for(int n = 0; n < 32 && ((video_decoder_ && !video_decoder_->ready()) || (audio_decoder_ && !audio_decoder_->ready())) && input_.try_pop(pkt); ++n)\r
 253                 {\r
 254                         if(video_decoder_)\r
 255                                 video_decoder_->push(pkt);\r
 256                         if(audio_decoder_)\r
 257                                 audio_decoder_->push(pkt);\r
 258                 }\r
 259                 \r
 260                 std::shared_ptr<AVFrame>                        video;\r
 261                 std::shared_ptr<core::audio_buffer> audio;\r
 262 \r
 263                 tbb::parallel_invoke(\r
 264                 [&]\r
 265                 {\r
 266                         if(!muxer_->video_ready() && video_decoder_)    \r
 267                                 video = video_decoder_->poll(); \r
 268                 },\r
 269                 [&]\r
 270                 {               \r
 271                         if(!muxer_->audio_ready() && audio_decoder_)            \r
 272                                 audio = audio_decoder_->poll();         \r
 273                 });\r
 274                 \r
 275                 muxer_->push(video, hints);\r
 276                 muxer_->push(audio);\r
 277 \r
 278                 if(!audio_decoder_)\r
 279                 {\r
 280                         if(video == flush_video())\r
 281                                 muxer_->push(flush_audio());\r
 282                         else if(!muxer_->audio_ready())\r
 283                                 muxer_->push(empty_audio());\r
 284                 }\r
 285 \r
 286                 if(!video_decoder_)\r
 287                 {\r
 288                         if(audio == flush_audio())\r
 289                                 muxer_->push(flush_video(), 0);\r
 290                         else if(!muxer_->video_ready())\r
 291                                 muxer_->push(empty_video(), 0);\r
 292                 }\r
 293                 \r
 294                 size_t file_frame_number = 0;\r
 295                 file_frame_number = std::max(file_frame_number, video_decoder_ ? video_decoder_->file_frame_number() : 0);\r
 296                 //file_frame_number = std::max(file_frame_number, audio_decoder_ ? audio_decoder_->file_frame_number() : 0);\r
 297 \r
 298                 for(auto frame = muxer_->poll(); frame; frame = muxer_->poll())\r
 299                         frame_buffer_.push(std::make_pair(make_safe_ptr(frame), file_frame_number));\r
 300         }\r
 301 };\r
 302 \r
 303 safe_ptr<core::frame_producer> create_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::vector<std::wstring>& params)\r
 304 {               \r
 305         static const std::vector<std::wstring> extensions = boost::assign::list_of\r
 306                 (L"mpg")(L"mpeg")(L"m2v")(L"m4v")(L"mp3")(L"mp4")(L"mpga")\r
 307                 (L"avi")\r
 308                 (L"mov")\r
 309                 (L"qt")\r
 310                 (L"webm")\r
 311                 (L"dv")         \r
 312                 (L"f4v")(L"flv")\r
 313                 (L"mkv")(L"mka")\r
 314                 (L"wmv")(L"wma")(L"wav")\r
 315                 (L"rm")(L"ram")\r
 316                 (L"ogg")(L"ogv")(L"oga")(L"ogx")\r
 317                 (L"divx")(L"xvid");\r
 318 \r
 319         std::wstring filename = env::media_folder() + L"\\" + params[0];\r
 320         \r
 321         auto ext = boost::find_if(extensions, [&](const std::wstring& ex)\r
 322         {                                       \r
 323                 return boost::filesystem::is_regular_file(boost::filesystem::wpath(filename + L"." + ex));\r
 324         });\r
 325 \r
 326         if(ext == extensions.end())\r
 327                 return core::frame_producer::empty();\r
 328 \r
 329         auto path               = filename + L"." + *ext;\r
 330         auto loop               = boost::range::find(params, L"LOOP") != params.end();\r
 331         auto start              = core::get_param(L"SEEK", params, 0);\r
 332         auto length             = core::get_param(L"LENGTH", params, std::numeric_limits<size_t>::max());\r
 333         auto filter_str = core::get_param<std::wstring>(L"FILTER", params, L"");        \r
 334                 \r
 335         boost::replace_all(filter_str, L"DEINTERLACE", L"YADIF=0:-1");\r
 336         boost::replace_all(filter_str, L"DEINTERLACE_BOB", L"YADIF=1:-1");\r
 337         \r
 338         return create_producer_destroy_proxy(make_safe<ffmpeg_producer>(frame_factory, path, filter_str, loop, start, length));\r
 339 }\r
 340 \r
 341 }}