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/concurrency/executor.h>\r
  34 #include <common/diagnostics/graph.h>\r
  35 #include <common/env.h>\r
  36 #include <common/utility/string.h>\r
  37 #include <common/utility/param.h>\r
  38 \r
  39 #include <boost/algorithm/string.hpp>\r
  40 #include <boost/timer.hpp>\r
  41 #include <boost/property_tree/ptree.hpp>\r
  42 \r
  43 #include <tbb/cache_aligned_allocator.h>\r
  44 #include <tbb/parallel_invoke.h>\r
  45 \r
  46 #if defined(_MSC_VER)\r
  47 #pragma warning (push)\r
  48 #pragma warning (disable : 4244)\r
  49 #endif\r
  50 extern "C" \r
  51 {\r
  52         #define __STDC_CONSTANT_MACROS\r
  53         #define __STDC_LIMIT_MACROS\r
  54         #include <libavformat/avformat.h>\r
  55         #include <libswscale/swscale.h>\r
  56         #include <libavutil/opt.h>\r
  57 }\r
  58 #if defined(_MSC_VER)\r
  59 #pragma warning (pop)\r
  60 #endif\r
  61 \r
  62 namespace caspar { namespace ffmpeg {\r
  63         \r
  64 struct ffmpeg_consumer : boost::noncopyable\r
  65 {               \r
  66         const std::wstring                                              filename_;\r
  67                 \r
  68         const std::shared_ptr<AVFormatContext>  oc_;\r
  69         const core::video_format_desc                   format_desc_;\r
  70         \r
  71         const safe_ptr<diagnostics::graph>              graph_;\r
  72         boost::timer                                                    frame_timer_;\r
  73         boost::timer                                                    write_timer_;\r
  74 \r
  75         executor                                                                executor_;\r
  76         executor                                                                file_write_executor_;\r
  77 \r
  78         // Audio\r
  79         std::shared_ptr<AVStream>                               audio_st_;\r
  80         \r
  81         // Video\r
  82         std::shared_ptr<AVStream>                               video_st_;\r
  83 \r
  84         std::vector<uint8_t>                                    video_outbuf_;\r
  85         std::vector<uint8_t>                                    picture_buf_;\r
  86         std::shared_ptr<SwsContext>                             sws_;\r
  87 \r
  88         int64_t                                                                 frame_number_;\r
  89         \r
  90 public:\r
  91         ffmpeg_consumer(const std::wstring& filename, const core::video_format_desc& format_desc, const std::wstring& codec, const std::wstring& options)\r
  92                 : filename_(filename)\r
  93                 , video_outbuf_(1920*1080*8)\r
  94                 , oc_(avformat_alloc_context(), av_free)\r
  95                 , format_desc_(format_desc)\r
  96                 , executor_(print())\r
  97                 , file_write_executor_(print() + L"/output")\r
  98                 , frame_number_(0)\r
  99         {\r
 100                 // TODO: Ask stakeholders about case where file already exists.\r
 101                 boost::filesystem2::remove(boost::filesystem2::wpath(env::media_folder() + filename)); // Delete the file if it exists\r
 102 \r
 103                 graph_->add_guide("frame-time", 0.5);\r
 104                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 105                 graph_->set_color("write-time", diagnostics::color(0.5f, 0.5f, 0.1f));\r
 106                 graph_->set_text(print());\r
 107                 diagnostics::register_graph(graph_);\r
 108 \r
 109                 executor_.set_capacity(8);\r
 110                 file_write_executor_.set_capacity(8);\r
 111 \r
 112                 oc_->oformat = av_guess_format(nullptr, u8(filename_).c_str(), nullptr);\r
 113                 if (!oc_->oformat)\r
 114                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not find suitable output format."));\r
 115                 \r
 116                 THROW_ON_ERROR2(av_set_parameters(oc_.get(), nullptr), "[ffmpeg_consumer]");\r
 117 \r
 118                 strcpy_s(oc_->filename, u8(filename_).c_str());\r
 119                 \r
 120                 auto video_codec = avcodec_find_encoder_by_name(u8(codec).c_str());\r
 121                 if(video_codec == nullptr)\r
 122                         BOOST_THROW_EXCEPTION(invalid_argument() << warg_name_info(codec));\r
 123 \r
 124                 //  Add the audio and video streams using the default format codecs     and initialize the codecs .\r
 125                 video_st_ = add_video_stream(video_codec->id, u8(options));\r
 126                 audio_st_ = add_audio_stream();\r
 127                                 \r
 128                 dump_format(oc_.get(), 0, u8(filename_).c_str(), 1);\r
 129                  \r
 130                 // Open the output ffmpeg, if needed.\r
 131                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 132                         THROW_ON_ERROR2(avio_open(&oc_->pb, u8(filename_).c_str(), URL_WRONLY), "[ffmpeg_consumer]");\r
 133                                 \r
 134                 THROW_ON_ERROR2(av_write_header(oc_.get()), "[ffmpeg_consumer]");\r
 135 \r
 136                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 137         }\r
 138 \r
 139         ~ffmpeg_consumer()\r
 140         {    \r
 141                 executor_.wait();\r
 142                 executor_.stop();\r
 143                 executor_.join();\r
 144 \r
 145                 file_write_executor_.wait();\r
 146                 file_write_executor_.stop();\r
 147                 file_write_executor_.join();\r
 148                 \r
 149                 LOG_ON_ERROR2(av_write_trailer(oc_.get()), "[ffmpeg_consumer]");\r
 150                 \r
 151                 audio_st_.reset();\r
 152                 video_st_.reset();\r
 153                           \r
 154                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 155                         LOG_ON_ERROR2(avio_close(oc_->pb), "[ffmpeg_consumer]"); // Close the output ffmpeg.\r
 156 \r
 157                 CASPAR_LOG(info) << print() << L" Successfully Uninitialized."; \r
 158         }\r
 159                         \r
 160         std::wstring print() const\r
 161         {\r
 162                 return L"ffmpeg[" + filename_ + L"]";\r
 163         }\r
 164 \r
 165         std::shared_ptr<AVStream> add_video_stream(enum CodecID codec_id, const std::string& options)\r
 166         { \r
 167                 auto st = av_new_stream(oc_.get(), 0);\r
 168                 if (!st)                \r
 169                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate video-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 170 \r
 171                 auto encoder = avcodec_find_encoder(codec_id);\r
 172                 if (!encoder)\r
 173                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 174 \r
 175                 auto c = st->codec;\r
 176 \r
 177                 avcodec_get_context_defaults3(c, encoder);\r
 178                                 \r
 179                 c->codec_id                     = codec_id;\r
 180                 c->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 181                 c->width                        = format_desc_.width;\r
 182                 c->height                       = format_desc_.height;\r
 183                 c->time_base.den        = format_desc_.time_scale;\r
 184                 c->time_base.num        = format_desc_.duration;\r
 185                 c->gop_size                     = 25;\r
 186                 c->flags                   |= format_desc_.field_mode == core::field_mode::progressive ? 0 : (CODEC_FLAG_INTERLACED_ME | CODEC_FLAG_INTERLACED_DCT);\r
 187 \r
 188                 if(c->codec_id == CODEC_ID_PRORES)\r
 189                 {                       \r
 190                         c->bit_rate     = format_desc_.width < 1280 ? 63*1000000 : 220*1000000;\r
 191                         c->pix_fmt      = PIX_FMT_YUV422P10;\r
 192                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 193                 }\r
 194                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 195                 {\r
 196                         if(format_desc_.width < 1280 || format_desc_.height < 720)\r
 197                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported dimension"));\r
 198 \r
 199                         c->bit_rate     = 220*1000000;\r
 200                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 201                         \r
 202                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 203                 }\r
 204                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 205                 {\r
 206                         c->bit_rate     = format_desc_.width < 1280 ? 50*1000000 : 100*1000000;\r
 207                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 208                         \r
 209                         c->width = format_desc_.height == 1280 ? 960  : c->width;\r
 210 \r
 211                         if(format_desc_.duration == 1001)                       \r
 212                                 c->width = format_desc_.height == 1080 ? 1280 : c->width;                       \r
 213                         else\r
 214                                 c->width = format_desc_.height == 1080 ? 1440 : c->width;\r
 215                         \r
 216                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 217                 }\r
 218                 else if(c->codec_id == CODEC_ID_H264)\r
 219                 {                          \r
 220                         c->pix_fmt = PIX_FMT_YUV420P;    \r
 221                         if(options.empty())\r
 222                         {\r
 223                                 av_opt_set(c->priv_data, "preset", "ultrafast", 0);\r
 224                                 av_opt_set(c->priv_data, "tune",   "fastdecode",   0);\r
 225                                 av_opt_set(c->priv_data, "crf",    "5",     0);\r
 226                         }\r
 227 \r
 228                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 229                 }\r
 230                 else\r
 231                 {\r
 232                         THROW_ON_ERROR2(av_set_options_string(c->priv_data, options.c_str(), "=", ":"), "[ffmpeg_consumer]");\r
 233                         CASPAR_LOG(warning) << " Potentially unsupported output parameters.";\r
 234                 }\r
 235                 \r
 236                 c->max_b_frames = 0; // b-franes not supported.\r
 237 \r
 238                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 239                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 240                 \r
 241                 c->thread_count = boost::thread::hardware_concurrency();\r
 242                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 243 \r
 244                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 245                 {\r
 246                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");\r
 247                         av_freep(&st->codec);\r
 248                         av_freep(&st);\r
 249                 });\r
 250         }\r
 251         \r
 252         std::shared_ptr<AVStream> add_audio_stream()\r
 253         {\r
 254                 auto st = av_new_stream(oc_.get(), 1);\r
 255                 if(!st)\r
 256                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate audio-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 257 \r
 258                 st->codec->codec_id                     = CODEC_ID_PCM_S16LE;\r
 259                 st->codec->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 260                 st->codec->sample_rate          = 48000;\r
 261                 st->codec->channels                     = 2;\r
 262                 st->codec->sample_fmt           = SAMPLE_FMT_S16;\r
 263                 \r
 264                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 265                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 266                 \r
 267                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 268                 if (!codec)\r
 269                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 270 \r
 271                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 272 \r
 273                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 274                 {\r
 275                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");;\r
 276                         av_freep(&st->codec);\r
 277                         av_freep(&st);\r
 278                 });\r
 279         }\r
 280 \r
 281         std::shared_ptr<AVFrame> convert_video_frame(const safe_ptr<core::read_frame>& frame, AVCodecContext* c)\r
 282         {\r
 283                 if(!sws_) \r
 284                 {\r
 285                         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
 286                         if (sws_ == nullptr) \r
 287                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 288                 }\r
 289 \r
 290                 std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);\r
 291                 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
 292                                 \r
 293                 std::shared_ptr<AVFrame> local_av_frame(avcodec_alloc_frame(), av_free);\r
 294                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, format_desc_.width, format_desc_.height));\r
 295                 avpicture_fill(reinterpret_cast<AVPicture*>(local_av_frame.get()), picture_buf_.data(), c->pix_fmt, format_desc_.width, format_desc_.height);\r
 296 \r
 297                 sws_scale(sws_.get(), av_frame->data, av_frame->linesize, 0, c->height, local_av_frame->data, local_av_frame->linesize);\r
 298 \r
 299                 return local_av_frame;\r
 300         }\r
 301   \r
 302         std::shared_ptr<AVPacket> encode_video_frame(const safe_ptr<core::read_frame>& frame)\r
 303         { \r
 304                 auto c = video_st_->codec;\r
 305  \r
 306                 auto av_frame = convert_video_frame(frame, c);\r
 307                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 308                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper;\r
 309                 av_frame->pts                           = frame_number_++;\r
 310 \r
 311                 int out_size = THROW_ON_ERROR2(avcodec_encode_video(c, video_outbuf_.data(), video_outbuf_.size(), av_frame.get()), "[ffmpeg_consumer]");\r
 312                 if(out_size > 0)\r
 313                 {\r
 314                         safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 315                         {\r
 316                                 av_free_packet(p);\r
 317                                 delete p;\r
 318                         });\r
 319                         av_init_packet(pkt.get());\r
 320  \r
 321                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 322                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 323 \r
 324                         if(c->coded_frame->key_frame)\r
 325                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 326 \r
 327                         pkt->stream_index       = video_st_->index;\r
 328                         pkt->data                       = video_outbuf_.data();\r
 329                         pkt->size                       = out_size;\r
 330  \r
 331                         av_dup_packet(pkt.get());\r
 332                         return pkt;\r
 333                 }       \r
 334                 return nullptr;\r
 335         }\r
 336                 \r
 337         std::shared_ptr<AVPacket> encode_audio_frame(const safe_ptr<core::read_frame>& frame)\r
 338         {                       \r
 339                 auto c = audio_st_->codec;\r
 340 \r
 341                 auto audio_data = core::audio_32_to_16(frame->audio_data());\r
 342                 \r
 343                 safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 344                 {\r
 345                         av_free_packet(p);\r
 346                         delete p;\r
 347                 });\r
 348                 av_init_packet(pkt.get());\r
 349                 \r
 350                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 351                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 352 \r
 353                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 354                 pkt->stream_index = audio_st_->index;\r
 355                 pkt->size                = audio_data.size()*2;\r
 356                 pkt->data                = reinterpret_cast<uint8_t*>(audio_data.data());\r
 357                 \r
 358                 av_dup_packet(pkt.get());\r
 359                 return pkt;\r
 360         }\r
 361                  \r
 362         void send(const safe_ptr<core::read_frame>& frame)\r
 363         {\r
 364                 executor_.begin_invoke([=]\r
 365                 {               \r
 366                         frame_timer_.restart();\r
 367 \r
 368                         auto video = encode_video_frame(frame);\r
 369                         auto audio = encode_audio_frame(frame);\r
 370 \r
 371                         graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 372                         \r
 373                         file_write_executor_.begin_invoke([=]\r
 374                         {\r
 375                                 write_timer_.restart();\r
 376 \r
 377                                 if(video)\r
 378                                         av_write_frame(oc_.get(), video.get());\r
 379                                 if(audio)\r
 380                                         av_write_frame(oc_.get(), audio.get());\r
 381 \r
 382                                 graph_->update_value("write-time", write_timer_.elapsed()*format_desc_.fps*0.5);\r
 383                         });\r
 384                 });\r
 385         }\r
 386 };\r
 387 \r
 388 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 389 {\r
 390         const std::wstring      filename_;\r
 391         const bool                      key_only_;\r
 392         const std::wstring      codec_;\r
 393         const std::wstring      options_;\r
 394 \r
 395         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 396 \r
 397 public:\r
 398 \r
 399         ffmpeg_consumer_proxy(const std::wstring& filename, bool key_only, const std::wstring codec, const std::wstring& options)\r
 400                 : filename_(filename)\r
 401                 , key_only_(key_only)\r
 402                 , codec_(boost::to_lower_copy(codec))\r
 403                 , options_(options)\r
 404         {\r
 405         }\r
 406         \r
 407         virtual void initialize(const core::video_format_desc& format_desc, int)\r
 408         {\r
 409                 consumer_.reset();\r
 410                 consumer_.reset(new ffmpeg_consumer(filename_, format_desc, codec_, options_));\r
 411         }\r
 412         \r
 413         virtual bool send(const safe_ptr<core::read_frame>& frame) override\r
 414         {\r
 415                 consumer_->send(frame);\r
 416                 return true;\r
 417         }\r
 418         \r
 419         virtual std::wstring print() const override\r
 420         {\r
 421                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 422         }\r
 423 \r
 424         virtual boost::property_tree::wptree info() const override\r
 425         {\r
 426                 boost::property_tree::wptree info;\r
 427                 info.add(L"type", L"ffmpeg-consumer");\r
 428                 info.add(L"key-only", key_only_);\r
 429                 info.add(L"filename", filename_);\r
 430                 info.add(L"codec", codec_);\r
 431                 info.add(L"options", options_);\r
 432                 return info;\r
 433         }\r
 434                 \r
 435         virtual bool has_synchronization_clock() const override\r
 436         {\r
 437                 return false;\r
 438         }\r
 439 \r
 440         virtual size_t buffer_depth() const override\r
 441         {\r
 442                 return 1;\r
 443         }\r
 444 \r
 445         virtual int index() const override\r
 446         {\r
 447                 return 200;\r
 448         }\r
 449 };      \r
 450 \r
 451 safe_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 452 {\r
 453         if(params.size() < 1 || params[0] != L"FILE")\r
 454                 return core::frame_consumer::empty();\r
 455         \r
 456         auto filename   = (params.size() > 1 ? params[1] : L"");\r
 457         bool key_only   = get_param(L"KEY_ONLY", params, false);\r
 458         auto codec              = get_param(L"CODEC", params, L"libx264");\r
 459         auto options    = get_param(L"OPTIONS", params);\r
 460         \r
 461         if(codec == L"H264")\r
 462                 codec = L"libx264";\r
 463 \r
 464         if(codec == L"DVCPRO")\r
 465                 codec = L"dvvideo";\r
 466 \r
 467         boost::to_lower(options);\r
 468 \r
 469         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + filename, key_only, codec, options);\r
 470 }\r
 471 \r
 472 safe_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree)\r
 473 {\r
 474         auto filename   = ptree.get<std::wstring>(L"path");\r
 475         auto key_only   = ptree.get(L"key-only", false);\r
 476         auto codec              = ptree.get(L"codec", L"libx264");\r
 477         auto options    = ptree.get(L"options", L"");\r
 478         \r
 479         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + filename, key_only, codec, options);\r
 480 }\r
 481 \r
 482 }}\r