git.sesse.net Git - casparcg/blob - modules/ffmpeg/consumer/ffmpeg_consumer.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_error.h"\r
  25 \r
  26 #include "ffmpeg_consumer.h"\r
  27 \r
  28 #include <core/frame/data_frame.h>\r
  29 #include <core/mixer/audio/audio_util.h>\r
  30 #include <core/consumer/frame_consumer.h>\r
  31 #include <core/video_format.h>\r
  32 \r
  33 #include <common/env.h>\r
  34 #include <common/concurrency/executor.h>\r
  35 #include <common/diagnostics/graph.h>\r
  36 #include <common/spl/memory.h>\r
  37 #include <common/utf.h>\r
  38 #include <common/param.h>\r
  39 \r
  40 #include <boost/algorithm/string.hpp>\r
  41 #include <boost/timer.hpp>\r
  42 #include <boost/property_tree/ptree.hpp>\r
  43 #include <boost/filesystem.hpp>\r
  44 \r
  45 #if defined(_MSC_VER)\r
  46 #pragma warning (push)\r
  47 #pragma warning (disable : 4244)\r
  48 #endif\r
  49 extern "C" \r
  50 {\r
  51         #define __STDC_CONSTANT_MACROS\r
  52         #define __STDC_LIMIT_MACROS\r
  53         #include <libavformat/avformat.h>\r
  54         #include <libswscale/swscale.h>\r
  55         #include <libavutil/opt.h>\r
  56 }\r
  57 #if defined(_MSC_VER)\r
  58 #pragma warning (pop)\r
  59 #endif\r
  60 \r
  61 namespace caspar { namespace ffmpeg {\r
  62         \r
  63 struct ffmpeg_consumer : boost::noncopyable\r
  64 {               \r
  65         const std::wstring                                              filename_;\r
  66                 \r
  67         const std::shared_ptr<AVFormatContext>  oc_;\r
  68         const core::video_format_desc                   format_desc_;\r
  69         \r
  70         const spl::shared_ptr<diagnostics::graph>               graph_;\r
  71         boost::timer                                                    frame_timer_;\r
  72         boost::timer                                                    write_timer_;\r
  73 \r
  74         executor                                                                executor_;\r
  75         executor                                                                file_write_executor_;\r
  76 \r
  77         // Audio\r
  78         std::shared_ptr<AVStream>                               audio_st_;\r
  79         \r
  80         // Video\r
  81         std::shared_ptr<AVStream>                               video_st_;\r
  82 \r
  83         std::vector<uint8_t>                                    video_outbuf_;\r
  84         std::vector<uint8_t>                                    picture_buf_;\r
  85         std::shared_ptr<SwsContext>                             sws_;\r
  86 \r
  87         int64_t                                                                 frame_number_;\r
  88         \r
  89 public:\r
  90         ffmpeg_consumer(const std::wstring& filename, const core::video_format_desc& format_desc, const std::wstring& codec, const std::vector<std::wstring>& options)\r
  91                 : filename_(filename)\r
  92                 , video_outbuf_(1920*1080*8)\r
  93                 , oc_(avformat_alloc_context(), av_free)\r
  94                 , format_desc_(format_desc)\r
  95                 , executor_(print())\r
  96                 , file_write_executor_(print() + L"/output")\r
  97                 , frame_number_(0)\r
  98         {\r
  99                 // TODO: Ask stakeholders about case where file already exists.\r
 100                 boost::filesystem::remove(boost::filesystem::path(env::media_folder() + filename)); // Delete the file if it exists\r
 101 \r
 102                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 103                 graph_->set_color("write-time", diagnostics::color(0.5f, 0.5f, 0.1f));\r
 104                 graph_->set_text(print());\r
 105                 diagnostics::register_graph(graph_);\r
 106 \r
 107                 executor_.set_capacity(8);\r
 108                 file_write_executor_.set_capacity(8);\r
 109 \r
 110                 oc_->oformat = av_guess_format(nullptr, u8(filename_).c_str(), nullptr);\r
 111                 if (!oc_->oformat)\r
 112                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not find suitable output format."));\r
 113                 \r
 114                 THROW_ON_ERROR2(av_set_parameters(oc_.get(), nullptr), "[ffmpeg_consumer]");\r
 115 \r
 116                 strcpy_s(oc_->filename, u8(filename_).c_str());\r
 117                 \r
 118                 auto video_codec = avcodec_find_encoder_by_name(u8(codec).c_str());\r
 119                 if(video_codec == nullptr)\r
 120                         BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info(codec));\r
 121 \r
 122                 //  Add the audio and video streams using the default format codecs     and initialize the codecs .\r
 123                 video_st_ = add_video_stream(video_codec->id, options);\r
 124                 audio_st_ = add_audio_stream();\r
 125                                 \r
 126                 dump_format(oc_.get(), 0, u8(filename_).c_str(), 1);\r
 127                  \r
 128                 // Open the output ffmpeg, if needed.\r
 129                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 130                         THROW_ON_ERROR2(avio_open(&oc_->pb, u8(filename_).c_str(), URL_WRONLY), "[ffmpeg_consumer]");\r
 131                                 \r
 132                 THROW_ON_ERROR2(av_write_header(oc_.get()), "[ffmpeg_consumer]");\r
 133 \r
 134                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 135         }\r
 136 \r
 137         ~ffmpeg_consumer()\r
 138         {    \r
 139                 executor_.wait();\r
 140                 executor_.stop();\r
 141                 executor_.join();\r
 142 \r
 143                 file_write_executor_.wait();\r
 144                 file_write_executor_.stop();\r
 145                 file_write_executor_.join();\r
 146                 \r
 147                 LOG_ON_ERROR2(av_write_trailer(oc_.get()), "[ffmpeg_consumer]");\r
 148                 \r
 149                 audio_st_.reset();\r
 150                 video_st_.reset();\r
 151                           \r
 152                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 153                         LOG_ON_ERROR2(avio_close(oc_->pb), "[ffmpeg_consumer]"); // Close the output ffmpeg.\r
 154 \r
 155                 CASPAR_LOG(info) << print() << L" Successfully Uninitialized."; \r
 156         }\r
 157                         \r
 158         std::wstring print() const\r
 159         {\r
 160                 return L"ffmpeg[" + filename_ + L"]";\r
 161         }\r
 162 \r
 163         std::shared_ptr<AVStream> add_video_stream(enum CodecID codec_id, const std::vector<std::wstring>& options)\r
 164         { \r
 165                 auto st = av_new_stream(oc_.get(), 0);\r
 166                 if (!st)                \r
 167                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate video-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 168 \r
 169                 auto encoder = avcodec_find_encoder(codec_id);\r
 170                 if (!encoder)\r
 171                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 172 \r
 173                 auto c = st->codec;\r
 174 \r
 175                 avcodec_get_context_defaults3(c, encoder);\r
 176                                 \r
 177                 c->codec_id                     = codec_id;\r
 178                 c->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 179                 c->width                        = format_desc_.width;\r
 180                 c->height                       = format_desc_.height;\r
 181                 c->time_base.den        = format_desc_.time_scale;\r
 182                 c->time_base.num        = format_desc_.duration;\r
 183                 c->gop_size                     = 25;\r
 184                 c->flags                   |= format_desc_.field_mode == core::field_mode::progressive ? 0 : (CODEC_FLAG_INTERLACED_ME | CODEC_FLAG_INTERLACED_DCT);\r
 185 \r
 186                 if(c->codec_id == CODEC_ID_PRORES)\r
 187                 {                       \r
 188                         c->bit_rate     = format_desc_.width < 1280 ? 63*1000000 : 220*1000000;\r
 189                         c->pix_fmt      = PIX_FMT_YUV422P10;\r
 190                 }\r
 191                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 192                 {\r
 193                         if(format_desc_.width < 1280 || format_desc_.height < 720)\r
 194                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported dimension"));\r
 195 \r
 196                         c->bit_rate     = 220*1000000;\r
 197                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 198                 }\r
 199                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 200                 {\r
 201                         c->bit_rate     = format_desc_.width < 1280 ? 50*1000000 : 100*1000000;\r
 202                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 203                         \r
 204                         c->width = format_desc_.height == 1280 ? 960  : c->width;\r
 205 \r
 206                         if(format_desc_.duration == 1001)                       \r
 207                                 c->width = format_desc_.height == 1080 ? 1280 : c->width;                       \r
 208                         else\r
 209                                 c->width = format_desc_.height == 1080 ? 1440 : c->width;                       \r
 210                 }\r
 211                 else if(c->codec_id == CODEC_ID_H264)\r
 212                 {                          \r
 213                         c->pix_fmt = PIX_FMT_YUV420P;    \r
 214                         if(options.empty())\r
 215                         {\r
 216                                 av_opt_set(c->priv_data, "preset", "ultrafast", 0);\r
 217                                 av_opt_set(c->priv_data, "tune",   "fastdecode",   0);\r
 218                                 av_opt_set(c->priv_data, "crf",    "5",     0);\r
 219                         }\r
 220                 }\r
 221                 else if(c->codec_id == CODEC_ID_QTRLE)\r
 222                 {\r
 223                         c->pix_fmt = PIX_FMT_ARGB;\r
 224                 }\r
 225                 else\r
 226                 {\r
 227                         BOOST_THROW_EXCEPTION(invalid_argument() << msg_info("Unsupported output parameters."));\r
 228                 }\r
 229                 \r
 230                 c->max_b_frames = 0; // b-frames not supported.\r
 231 \r
 232                 for(size_t n = 0; n < options.size()/2; ++n)\r
 233                         THROW_ON_ERROR2(av_opt_set(c, u8(options[n*2+0]).c_str(), u8(options[n*2+1]).c_str(), AV_OPT_SEARCH_CHILDREN), "[ffmpeg_consumer]");\r
 234                 \r
 235                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 236                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 237                 \r
 238                 c->thread_count = boost::thread::hardware_concurrency();\r
 239                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 240 \r
 241                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 242                 {\r
 243                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");\r
 244                         av_freep(&st->codec);\r
 245                         av_freep(&st);\r
 246                 });\r
 247         }\r
 248         \r
 249         std::shared_ptr<AVStream> add_audio_stream()\r
 250         {\r
 251                 auto st = av_new_stream(oc_.get(), 1);\r
 252                 if(!st)\r
 253                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate audio-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 254 \r
 255                 st->codec->codec_id                     = CODEC_ID_PCM_S16LE;\r
 256                 st->codec->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 257                 st->codec->sample_rate          = 48000;\r
 258                 st->codec->channels                     = 2;\r
 259                 st->codec->sample_fmt           = SAMPLE_FMT_S16;\r
 260                 \r
 261                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 262                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 263                 \r
 264                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 265                 if (!codec)\r
 266                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 267 \r
 268                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 269 \r
 270                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 271                 {\r
 272                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");;\r
 273                         av_freep(&st->codec);\r
 274                         av_freep(&st);\r
 275                 });\r
 276         }\r
 277 \r
 278         std::shared_ptr<AVFrame> convert_video_frame(const spl::shared_ptr<const core::data_frame>& frame, AVCodecContext* c)\r
 279         {\r
 280                 if(!sws_) \r
 281                 {\r
 282                         sws_.reset(sws_getContext(format_desc_.width, format_desc_.height, PIX_FMT_BGRA, c->width, c->height, c->pix_fmt, SWS_BICUBIC, nullptr, nullptr, nullptr), sws_freeContext);\r
 283                         if (sws_ == nullptr) \r
 284                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 285                 }\r
 286 \r
 287                 std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);\r
 288                 avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), const_cast<uint8_t*>(frame->image_data().begin()), PIX_FMT_BGRA, format_desc_.width, format_desc_.height);\r
 289                                 \r
 290                 std::shared_ptr<AVFrame> local_av_frame(avcodec_alloc_frame(), av_free);\r
 291                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, format_desc_.width, format_desc_.height));\r
 292                 avpicture_fill(reinterpret_cast<AVPicture*>(local_av_frame.get()), picture_buf_.data(), c->pix_fmt, format_desc_.width, format_desc_.height);\r
 293 \r
 294                 sws_scale(sws_.get(), av_frame->data, av_frame->linesize, 0, c->height, local_av_frame->data, local_av_frame->linesize);\r
 295 \r
 296                 return local_av_frame;\r
 297         }\r
 298   \r
 299         std::shared_ptr<AVPacket> encode_video_frame(const spl::shared_ptr<const core::data_frame>& frame)\r
 300         { \r
 301                 auto c = video_st_->codec;\r
 302  \r
 303                 auto av_frame = convert_video_frame(frame, c);\r
 304                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 305                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper;\r
 306                 av_frame->pts                           = frame_number_++;\r
 307                 \r
 308                 int out_size = THROW_ON_ERROR2(avcodec_encode_video(c, video_outbuf_.data(), static_cast<int>(video_outbuf_.size()), av_frame.get()), "[ffmpeg_consumer]");\r
 309                 if(out_size > 0)\r
 310                 {\r
 311                         spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 312                         {\r
 313                                 av_free_packet(p);\r
 314                                 delete p;\r
 315                         });\r
 316                         av_init_packet(pkt.get());\r
 317  \r
 318                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 319                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 320 \r
 321                         if(c->coded_frame->key_frame)\r
 322                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 323 \r
 324                         pkt->stream_index       = video_st_->index;\r
 325                         pkt->data                       = video_outbuf_.data();\r
 326                         pkt->size                       = out_size;\r
 327  \r
 328                         av_dup_packet(pkt.get());\r
 329                         return pkt;\r
 330                 }       \r
 331                 return nullptr;\r
 332         }\r
 333                 \r
 334         std::shared_ptr<AVPacket> encode_audio_frame(const spl::shared_ptr<const core::data_frame>& frame)\r
 335         {                       \r
 336                 auto c = audio_st_->codec;\r
 337 \r
 338                 auto audio_data = core::audio_32_to_16(frame->audio_data());\r
 339                 \r
 340                 spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 341                 {\r
 342                         av_free_packet(p);\r
 343                         delete p;\r
 344                 });\r
 345                 av_init_packet(pkt.get());\r
 346                 \r
 347                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 348                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 349 \r
 350                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 351                 pkt->stream_index = audio_st_->index;\r
 352                 pkt->size                = static_cast<int>(audio_data.size()*2);\r
 353                 pkt->data                = reinterpret_cast<uint8_t*>(audio_data.data());\r
 354                 \r
 355                 av_dup_packet(pkt.get());\r
 356                 return pkt;\r
 357         }\r
 358                  \r
 359         void send(const spl::shared_ptr<const core::data_frame>& frame)\r
 360         {\r
 361                 executor_.begin_invoke([=]\r
 362                 {               \r
 363                         frame_timer_.restart();\r
 364 \r
 365                         auto video = encode_video_frame(frame);\r
 366                         auto audio = encode_audio_frame(frame);\r
 367 \r
 368                         graph_->set_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 369                         \r
 370                         file_write_executor_.begin_invoke([=]\r
 371                         {\r
 372                                 write_timer_.restart();\r
 373 \r
 374                                 if(video)\r
 375                                         av_write_frame(oc_.get(), video.get());\r
 376                                 if(audio)\r
 377                                         av_write_frame(oc_.get(), audio.get());\r
 378 \r
 379                                 graph_->set_value("write-time", write_timer_.elapsed()*format_desc_.fps*0.5);\r
 380                         });\r
 381                 });\r
 382         }\r
 383 };\r
 384 \r
 385 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 386 {\r
 387         const std::wstring                              filename_;\r
 388         const bool                                              key_only_;\r
 389         const std::wstring                              codec_;\r
 390         const std::vector<std::wstring> options_;\r
 391 \r
 392         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 393 \r
 394 public:\r
 395 \r
 396         ffmpeg_consumer_proxy(const std::wstring& filename, bool key_only, const std::wstring& codec, const std::vector<std::wstring>& options)\r
 397                 : filename_(filename)\r
 398                 , key_only_(key_only)\r
 399                 , codec_(std::move(codec))\r
 400                 , options_(options)\r
 401         {\r
 402         }\r
 403         \r
 404         virtual void initialize(const core::video_format_desc& format_desc, int)\r
 405         {\r
 406                 consumer_.reset();\r
 407                 consumer_.reset(new ffmpeg_consumer(filename_, format_desc, codec_, options_));\r
 408         }\r
 409         \r
 410         virtual bool send(const spl::shared_ptr<const core::data_frame>& frame) override\r
 411         {\r
 412                 consumer_->send(frame);\r
 413                 return true;\r
 414         }\r
 415         \r
 416         virtual std::wstring print() const override\r
 417         {\r
 418                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 419         }\r
 420 \r
 421         virtual boost::property_tree::wptree info() const override\r
 422         {\r
 423                 boost::property_tree::wptree info;\r
 424                 info.add(L"type", L"ffmpeg-consumer");\r
 425                 info.add(L"key-only", key_only_);\r
 426                 info.add(L"filename", filename_);\r
 427                 info.add(L"vcodec", codec_);\r
 428                 return info;\r
 429         }\r
 430                 \r
 431         virtual bool has_synchronization_clock() const override\r
 432         {\r
 433                 return false;\r
 434         }\r
 435 \r
 436         virtual int buffer_depth() const override\r
 437         {\r
 438                 return 1;\r
 439         }\r
 440 \r
 441         virtual int index() const override\r
 442         {\r
 443                 return 200;\r
 444         }\r
 445 };      \r
 446 \r
 447 spl::shared_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 448 {\r
 449         if(params.size() < 1 || params[0] != L"FILE")\r
 450                 return core::frame_consumer::empty();\r
 451         \r
 452         auto filename   = (params.size() > 1 ? params[1] : L"");\r
 453         bool key_only   = get_param(L"KEY_ONLY", params, false);\r
 454         auto codec              = get_param(L"-VCODEC", params,  get_param(L"CODEC", params, L"libx264"));\r
 455 \r
 456         std::vector<std::wstring> options;\r
 457         auto opt_it = std::find(params.begin(), params.end(), L"-VCODEC");\r
 458 \r
 459         if(std::distance(opt_it, params.end()) > 2)\r
 460         {\r
 461                 std::advance(opt_it, 2);\r
 462                 while(opt_it != params.end())\r
 463                 {\r
 464                         auto str = *opt_it++;\r
 465                         if(str.size() > 0 && str.at(0) == L'-')\r
 466                                 str = str.substr(1);\r
 467                         options.push_back(boost::to_lower_copy(str));           \r
 468                 }\r
 469         }\r
 470                 \r
 471         if(codec == L"H264")\r
 472                 codec = L"libx264";\r
 473 \r
 474         if(codec == L"DVCPRO")\r
 475                 codec = L"dvvideo";\r
 476 \r
 477         codec = boost::to_lower_copy(codec);\r
 478         \r
 479         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, key_only, codec, options);\r
 480 }\r
 481 \r
 482 spl::shared_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree)\r
 483 {\r
 484         auto filename   = ptree.get<std::wstring>(L"path");\r
 485         auto key_only   = ptree.get(L"key-only", false);\r
 486         auto codec              = ptree.get(L"vcodec", L"libx264");\r
 487         \r
 488         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, key_only, codec, std::vector<std::wstring>());\r
 489 }\r
 490 \r
 491 }}\r