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/mixer/read_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/memory/safe_ptr.h>\r
  37 #include <common/utf.h>\r
  38 #include <common/utility/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 safe_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::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, u8(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::string& 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                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 191                 }\r
 192                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 193                 {\r
 194                         if(format_desc_.width < 1280 || format_desc_.height < 720)\r
 195                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported dimension"));\r
 196 \r
 197                         c->bit_rate     = 220*1000000;\r
 198                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 199                         \r
 200                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 201                 }\r
 202                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 203                 {\r
 204                         c->bit_rate     = format_desc_.width < 1280 ? 50*1000000 : 100*1000000;\r
 205                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 206                         \r
 207                         c->width = format_desc_.height == 1280 ? 960  : c->width;\r
 208 \r
 209                         if(format_desc_.duration == 1001)                       \r
 210                                 c->width = format_desc_.height == 1080 ? 1280 : c->width;                       \r
 211                         else\r
 212                                 c->width = format_desc_.height == 1080 ? 1440 : c->width;\r
 213                         \r
 214                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 215                 }\r
 216                 else if(c->codec_id == CODEC_ID_H264)\r
 217                 {                          \r
 218                         c->pix_fmt = PIX_FMT_YUV420P;    \r
 219                         if(options.empty())\r
 220                         {\r
 221                                 av_opt_set(c->priv_data, "preset", "ultrafast", 0);\r
 222                                 av_opt_set(c->priv_data, "tune",   "fastdecode",   0);\r
 223                                 av_opt_set(c->priv_data, "crf",    "5",     0);\r
 224                         }\r
 225 \r
 226                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 227                 }\r
 228                 else if(c->codec_id == CODEC_ID_QTRLE)\r
 229                 {\r
 230                         c->pix_fmt = PIX_FMT_ARGB;\r
 231                 }\r
 232                 else\r
 233                 {\r
 234                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 235                         CASPAR_LOG(warning) << " Potentially unsupported output parameters.";\r
 236                 }\r
 237                 \r
 238                 c->max_b_frames = 0; // b-franes not supported.\r
 239 \r
 240                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 241                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 242                 \r
 243                 c->thread_count = boost::thread::hardware_concurrency();\r
 244                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 245 \r
 246                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 247                 {\r
 248                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");\r
 249                         av_freep(&st->codec);\r
 250                         av_freep(&st);\r
 251                 });\r
 252         }\r
 253         \r
 254         std::shared_ptr<AVStream> add_audio_stream()\r
 255         {\r
 256                 auto st = av_new_stream(oc_.get(), 1);\r
 257                 if(!st)\r
 258                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate audio-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 259 \r
 260                 st->codec->codec_id                     = CODEC_ID_PCM_S16LE;\r
 261                 st->codec->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 262                 st->codec->sample_rate          = 48000;\r
 263                 st->codec->channels                     = 2;\r
 264                 st->codec->sample_fmt           = SAMPLE_FMT_S16;\r
 265                 \r
 266                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 267                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 268                 \r
 269                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 270                 if (!codec)\r
 271                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 272 \r
 273                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 274 \r
 275                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 276                 {\r
 277                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");;\r
 278                         av_freep(&st->codec);\r
 279                         av_freep(&st);\r
 280                 });\r
 281         }\r
 282 \r
 283         std::shared_ptr<AVFrame> convert_video_frame(const safe_ptr<core::read_frame>& frame, AVCodecContext* c)\r
 284         {\r
 285                 if(!sws_) \r
 286                 {\r
 287                         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
 288                         if (sws_ == nullptr) \r
 289                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 290                 }\r
 291 \r
 292                 std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);\r
 293                 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
 294                                 \r
 295                 std::shared_ptr<AVFrame> local_av_frame(avcodec_alloc_frame(), av_free);\r
 296                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, format_desc_.width, format_desc_.height));\r
 297                 avpicture_fill(reinterpret_cast<AVPicture*>(local_av_frame.get()), picture_buf_.data(), c->pix_fmt, format_desc_.width, format_desc_.height);\r
 298 \r
 299                 sws_scale(sws_.get(), av_frame->data, av_frame->linesize, 0, c->height, local_av_frame->data, local_av_frame->linesize);\r
 300 \r
 301                 return local_av_frame;\r
 302         }\r
 303   \r
 304         std::shared_ptr<AVPacket> encode_video_frame(const safe_ptr<core::read_frame>& frame)\r
 305         { \r
 306                 auto c = video_st_->codec;\r
 307  \r
 308                 auto av_frame = convert_video_frame(frame, c);\r
 309                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 310                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper;\r
 311                 av_frame->pts                           = frame_number_++;\r
 312                 \r
 313                 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
 314                 if(out_size > 0)\r
 315                 {\r
 316                         safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 317                         {\r
 318                                 av_free_packet(p);\r
 319                                 delete p;\r
 320                         });\r
 321                         av_init_packet(pkt.get());\r
 322  \r
 323                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 324                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 325 \r
 326                         if(c->coded_frame->key_frame)\r
 327                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 328 \r
 329                         pkt->stream_index       = video_st_->index;\r
 330                         pkt->data                       = video_outbuf_.data();\r
 331                         pkt->size                       = out_size;\r
 332  \r
 333                         av_dup_packet(pkt.get());\r
 334                         return pkt;\r
 335                 }       \r
 336                 return nullptr;\r
 337         }\r
 338                 \r
 339         std::shared_ptr<AVPacket> encode_audio_frame(const safe_ptr<core::read_frame>& frame)\r
 340         {                       \r
 341                 auto c = audio_st_->codec;\r
 342 \r
 343                 auto audio_data = core::audio_32_to_16(frame->audio_data());\r
 344                 \r
 345                 safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 346                 {\r
 347                         av_free_packet(p);\r
 348                         delete p;\r
 349                 });\r
 350                 av_init_packet(pkt.get());\r
 351                 \r
 352                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 353                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 354 \r
 355                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 356                 pkt->stream_index = audio_st_->index;\r
 357                 pkt->size                = static_cast<int>(audio_data.size()*2);\r
 358                 pkt->data                = reinterpret_cast<uint8_t*>(audio_data.data());\r
 359                 \r
 360                 av_dup_packet(pkt.get());\r
 361                 return pkt;\r
 362         }\r
 363                  \r
 364         void send(const safe_ptr<core::read_frame>& frame)\r
 365         {\r
 366                 executor_.begin_invoke([=]\r
 367                 {               \r
 368                         frame_timer_.restart();\r
 369 \r
 370                         auto video = encode_video_frame(frame);\r
 371                         auto audio = encode_audio_frame(frame);\r
 372 \r
 373                         graph_->set_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 374                         \r
 375                         file_write_executor_.begin_invoke([=]\r
 376                         {\r
 377                                 write_timer_.restart();\r
 378 \r
 379                                 if(video)\r
 380                                         av_write_frame(oc_.get(), video.get());\r
 381                                 if(audio)\r
 382                                         av_write_frame(oc_.get(), audio.get());\r
 383 \r
 384                                 graph_->set_value("write-time", write_timer_.elapsed()*format_desc_.fps*0.5);\r
 385                         });\r
 386                 });\r
 387         }\r
 388 };\r
 389 \r
 390 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 391 {\r
 392         const std::wstring      filename_;\r
 393         const bool                      key_only_;\r
 394         const std::wstring      codec_;\r
 395         const std::wstring      options_;\r
 396 \r
 397         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 398 \r
 399 public:\r
 400 \r
 401         ffmpeg_consumer_proxy(const std::wstring& filename, bool key_only, const std::wstring codec, const std::wstring& options)\r
 402                 : filename_(filename)\r
 403                 , key_only_(key_only)\r
 404                 , codec_(boost::to_lower_copy(codec))\r
 405                 , options_(options)\r
 406         {\r
 407         }\r
 408         \r
 409         virtual void initialize(const core::video_format_desc& format_desc, int)\r
 410         {\r
 411                 consumer_.reset();\r
 412                 consumer_.reset(new ffmpeg_consumer(filename_, format_desc, codec_, options_));\r
 413         }\r
 414         \r
 415         virtual bool send(const safe_ptr<core::read_frame>& frame) override\r
 416         {\r
 417                 consumer_->send(frame);\r
 418                 return true;\r
 419         }\r
 420         \r
 421         virtual std::wstring print() const override\r
 422         {\r
 423                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 424         }\r
 425 \r
 426         virtual boost::property_tree::wptree info() const override\r
 427         {\r
 428                 boost::property_tree::wptree info;\r
 429                 info.add(L"type", L"ffmpeg-consumer");\r
 430                 info.add(L"key-only", key_only_);\r
 431                 info.add(L"filename", filename_);\r
 432                 info.add(L"codec", codec_);\r
 433                 info.add(L"options", options_);\r
 434                 return info;\r
 435         }\r
 436                 \r
 437         virtual bool has_synchronization_clock() const override\r
 438         {\r
 439                 return false;\r
 440         }\r
 441 \r
 442         virtual int buffer_depth() const override\r
 443         {\r
 444                 return 1;\r
 445         }\r
 446 \r
 447         virtual int index() const override\r
 448         {\r
 449                 return 200;\r
 450         }\r
 451 };      \r
 452 \r
 453 safe_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 454 {\r
 455         if(params.size() < 1 || params[0] != L"FILE")\r
 456                 return core::frame_consumer::empty();\r
 457         \r
 458         auto filename   = (params.size() > 1 ? params[1] : L"");\r
 459         bool key_only   = get_param(L"KEY_ONLY", params, false);\r
 460         auto codec              = get_param(L"CODEC", params, L"libx264");\r
 461         auto options    = get_param(L"OPTIONS", params);\r
 462         \r
 463         if(codec == L"H264")\r
 464                 codec = L"libx264";\r
 465 \r
 466         if(codec == L"DVCPRO")\r
 467                 codec = L"dvvideo";\r
 468 \r
 469         boost::to_lower(options);\r
 470 \r
 471         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + filename, key_only, codec, options);\r
 472 }\r
 473 \r
 474 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree)\r
 475 {\r
 476         auto filename   = ptree.get<std::wstring>(L"path");\r
 477         auto key_only   = ptree.get(L"key-only", false);\r
 478         auto codec              = ptree.get(L"codec", L"libx264");\r
 479         auto options    = ptree.get(L"options", L"");\r
 480         \r
 481         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + filename, key_only, codec, options);\r
 482 }\r
 483 \r
 484 }}\r