git.sesse.net Git - casparcg/blob - modules/ffmpeg/consumer/ffmpeg_consumer.cpp

   1 /*\r
   2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
   3 *\r
   4 *  This ffmpeg 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  \r
  21 #include "../StdAfx.h"\r
  22 \r
  23 #include "../ffmpeg_error.h"\r
  24 \r
  25 #include "ffmpeg_consumer.h"\r
  26 \r
  27 #include <core/mixer/read_frame.h>\r
  28 #include <core/mixer/audio/audio_util.h>\r
  29 #include <core/consumer/frame_consumer.h>\r
  30 #include <core/video_format.h>\r
  31 \r
  32 #include <common/concurrency/executor.h>\r
  33 #include <common/diagnostics/graph.h>\r
  34 #include <common/utility/string.h>\r
  35 #include <common/env.h>\r
  36 \r
  37 #include <boost/timer.hpp>\r
  38 #include <boost/thread/once.hpp>\r
  39 #include <boost/thread.hpp>\r
  40 #include <boost/algorithm/string.hpp>\r
  41 \r
  42 #include <tbb/cache_aligned_allocator.h>\r
  43 #include <tbb/parallel_invoke.h>\r
  44 \r
  45 #include <cstdio>\r
  46 \r
  47 #if defined(_MSC_VER)\r
  48 #pragma warning (push)\r
  49 #pragma warning (disable : 4244)\r
  50 #endif\r
  51 extern "C" \r
  52 {\r
  53         #define __STDC_CONSTANT_MACROS\r
  54         #define __STDC_LIMIT_MACROS\r
  55         #include <libavformat/avformat.h>\r
  56         #include <libswscale/swscale.h>\r
  57         #include <libavutil/opt.h>\r
  58 }\r
  59 #if defined(_MSC_VER)\r
  60 #pragma warning (pop)\r
  61 #endif\r
  62 \r
  63 namespace caspar { namespace ffmpeg {\r
  64         \r
  65 struct ffmpeg_consumer : boost::noncopyable\r
  66 {               \r
  67         const std::string                                               filename_;\r
  68                 \r
  69         const std::shared_ptr<AVFormatContext>  oc_;\r
  70         const core::video_format_desc                   format_desc_;\r
  71         \r
  72         const safe_ptr<diagnostics::graph>              graph_;\r
  73         boost::timer                                                    frame_timer_;\r
  74         boost::timer                                                    write_timer_;\r
  75 \r
  76         executor                                                                executor_;\r
  77         executor                                                                file_write_executor_;\r
  78 \r
  79         // Audio\r
  80         std::shared_ptr<AVStream>                               audio_st_;\r
  81         std::vector<uint8_t>                                    audio_outbuf_;\r
  82 \r
  83         std::vector<int16_t>                                    audio_input_buffer_;\r
  84 \r
  85         // Video\r
  86         std::shared_ptr<AVStream>                               video_st_;\r
  87         std::vector<uint8_t>                                    video_outbuf_;\r
  88 \r
  89         std::vector<uint8_t>                                    picture_buf_;\r
  90         std::shared_ptr<SwsContext>                             img_convert_ctx_;\r
  91 \r
  92         int64_t                                                                 frame_number_;\r
  93         \r
  94 public:\r
  95         ffmpeg_consumer(const std::string& filename, const core::video_format_desc& format_desc, const std::string& codec, const std::string& options)\r
  96                 : filename_(filename + ".mov")\r
  97                 , video_outbuf_(1920*1080*8)\r
  98                 , audio_outbuf_(48000)\r
  99                 , oc_(avformat_alloc_context(), av_free)\r
 100                 , format_desc_(format_desc)\r
 101                 , executor_(print())\r
 102                 , file_write_executor_(print() + L"/output")\r
 103                 , frame_number_(0)\r
 104         {\r
 105                 graph_->add_guide("frame-time", 0.5);\r
 106                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 107                 graph_->set_color("write-time", diagnostics::color(0.5f, 0.5f, 0.1f));\r
 108                 graph_->set_text(print());\r
 109                 diagnostics::register_graph(graph_);\r
 110 \r
 111                 executor_.set_capacity(8);\r
 112                 file_write_executor_.set_capacity(8);\r
 113 \r
 114                 oc_->oformat = av_guess_format(nullptr, filename_.c_str(), nullptr);\r
 115                 if (!oc_->oformat)\r
 116                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not find suitable output format."));\r
 117                 \r
 118                 THROW_ON_ERROR2(av_set_parameters(oc_.get(), nullptr), "[ffmpeg_consumer]");\r
 119 \r
 120                 strcpy_s(oc_->filename, filename_.c_str());\r
 121                 \r
 122                 auto video_codec = avcodec_find_encoder_by_name(codec.c_str());\r
 123                 if(video_codec == nullptr)\r
 124                         BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info(codec));\r
 125 \r
 126                 //  Add the audio and video streams using the default format codecs     and initialize the codecs .\r
 127                 video_st_ = add_video_stream(video_codec->id, options);\r
 128                 audio_st_ = add_audio_stream();\r
 129                                 \r
 130                 dump_format(oc_.get(), 0, filename_.c_str(), 1);\r
 131                  \r
 132                 // Open the output ffmpeg, if needed.\r
 133                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 134                         THROW_ON_ERROR2(avio_open(&oc_->pb, filename_.c_str(), URL_WRONLY), "[ffmpeg_consumer]");\r
 135                                 \r
 136                 THROW_ON_ERROR2(av_write_header(oc_.get()), "[ffmpeg_consumer]");\r
 137 \r
 138                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 139         }\r
 140 \r
 141         ~ffmpeg_consumer()\r
 142         {    \r
 143                 file_write_executor_.stop();\r
 144                 file_write_executor_.join();\r
 145 \r
 146                 executor_.stop();\r
 147                 executor_.join();\r
 148                 \r
 149                 try\r
 150                 {\r
 151                         THROW_ON_ERROR2(av_write_trailer(oc_.get()), "[ffmpeg_consumer]");\r
 152                 \r
 153                         audio_st_.reset();\r
 154                         video_st_.reset();\r
 155                           \r
 156                         for(size_t i = 0; i < oc_->nb_streams; i++) \r
 157                         {\r
 158                                 av_freep(&oc_->streams[i]->codec);\r
 159                                 av_freep(&oc_->streams[i]);\r
 160                         }\r
 161 \r
 162                         if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 163                                 THROW_ON_ERROR2(avio_close(oc_->pb), "[ffmpeg_consumer]"); // Close the output ffmpeg.\r
 164 \r
 165                         CASPAR_LOG(info) << print() << L" Successfully Uninitialized."; \r
 166                 }\r
 167                 catch(...)\r
 168                 {\r
 169                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 170                 }\r
 171 \r
 172         }\r
 173                         \r
 174         std::wstring print() const\r
 175         {\r
 176                 return L"ffmpeg[" + widen(filename_) + L"]";\r
 177         }\r
 178 \r
 179 \r
 180         std::shared_ptr<AVStream> add_video_stream(enum CodecID codec_id, const std::string& options)\r
 181         { \r
 182                 auto st = av_new_stream(oc_.get(), 0);\r
 183                 if (!st) \r
 184                 {\r
 185                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 186                                 << msg_info("Could not alloc video-stream")                             \r
 187                                 << boost::errinfo_api_function("av_new_stream"));\r
 188                 }\r
 189 \r
 190                 auto encoder = avcodec_find_encoder(codec_id);\r
 191                 if (!encoder)\r
 192                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 193 \r
 194                 auto c = st->codec;\r
 195 \r
 196                 avcodec_get_context_defaults3(c, encoder);\r
 197                                 \r
 198                 c->codec_id                     = codec_id;\r
 199                 c->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 200                 c->width                        = format_desc_.width;\r
 201                 c->height                       = format_desc_.height;\r
 202                 c->time_base.den        = format_desc_.time_scale;\r
 203                 c->time_base.num        = format_desc_.duration;\r
 204                 c->gop_size                     = 25;\r
 205 \r
 206                 if(c->codec_id == CODEC_ID_PRORES)\r
 207                 {                       \r
 208                         c->bit_rate     = c->bit_rate > 0 ? c->bit_rate : format_desc_.width < 1280 ? 42*1000000 : 147*1000000;\r
 209                         c->pix_fmt      = PIX_FMT_YUV422P10;\r
 210                         CASPAR_LOG(info) << print() << L"Options set: " << av_set_options_string(c->priv_data, options.c_str(), "=", ":");\r
 211                 }\r
 212                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 213                 {\r
 214                         if(format_desc_.width < 1280 || format_desc_.height < 720)\r
 215                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported dimension"));\r
 216 \r
 217                         c->bit_rate     = c->bit_rate > 0 ? c->bit_rate : 220*1000000;\r
 218                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 219                         \r
 220                         CASPAR_LOG(info) << print() << L"Options set: " << av_set_options_string(c->priv_data, options.c_str(), "=", ":");\r
 221                 }\r
 222                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 223                 {\r
 224                         c->bit_rate     = c->bit_rate > 0 ? c->bit_rate : format_desc_.width < 1280 ? 50*1000000 : 100*1000000;\r
 225                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 226                         \r
 227                         CASPAR_LOG(info) << print() << L"Options set: " << av_set_options_string(c->priv_data, options.c_str(), "=", ":");\r
 228                 }\r
 229                 else if(c->codec_id == CODEC_ID_H264)\r
 230                 {                          \r
 231                         c->pix_fmt              = PIX_FMT_YUV420P;    \r
 232                         av_opt_set(c->priv_data, "preset", "faster", 0);\r
 233                         \r
 234                         CASPAR_LOG(info) << print() << L"Options set: " << av_set_options_string(c->priv_data, options.c_str(), "=", ":");\r
 235 \r
 236                         c->max_b_frames = 0; // b-franes bit supported.\r
 237                 }\r
 238                 else\r
 239                 {\r
 240                         CASPAR_LOG(info) << print() << L"Options set: " << av_set_options_string(c->priv_data, options.c_str(), "=", ":");\r
 241                         CASPAR_LOG(warning) << " Potentially unsupported output parameters.";\r
 242                 }\r
 243                 \r
 244                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 245                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 246                 \r
 247                 c->thread_count = boost::thread::hardware_concurrency();\r
 248                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 249 \r
 250                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 251                 {\r
 252                         avcodec_close(st->codec);\r
 253                 });\r
 254         }\r
 255         \r
 256         std::shared_ptr<AVStream> add_audio_stream()\r
 257         {\r
 258                 auto st = av_new_stream(oc_.get(), 1);\r
 259                 if (!st) \r
 260                 {\r
 261                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 262                                 << msg_info("Could not alloc audio-stream")                             \r
 263                                 << boost::errinfo_api_function("av_new_stream"));\r
 264                 }\r
 265 \r
 266                 st->codec->codec_id                     = CODEC_ID_PCM_S16LE;\r
 267                 st->codec->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 268                 st->codec->sample_rate          = 48000;\r
 269                 st->codec->channels                     = 2;\r
 270                 st->codec->sample_fmt           = SAMPLE_FMT_S16;\r
 271                 \r
 272                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 273                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 274                 \r
 275                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 276                 if (!codec)\r
 277                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 278 \r
 279                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 280 \r
 281                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 282                 {\r
 283                         avcodec_close(st->codec);\r
 284                 });\r
 285         }\r
 286 \r
 287         std::shared_ptr<AVFrame> convert_video_frame(const safe_ptr<core::read_frame>& frame, AVCodecContext* c)\r
 288         {\r
 289                 if(!img_convert_ctx_) \r
 290                 {\r
 291                         img_convert_ctx_.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
 292                         if (img_convert_ctx_ == nullptr) \r
 293                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 294                 }\r
 295 \r
 296                 std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);\r
 297                 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
 298                                 \r
 299                 std::shared_ptr<AVFrame> local_av_frame(avcodec_alloc_frame(), av_free);\r
 300                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, format_desc_.width, format_desc_.height));\r
 301                 avpicture_fill(reinterpret_cast<AVPicture*>(local_av_frame.get()), picture_buf_.data(), c->pix_fmt, format_desc_.width, format_desc_.height);\r
 302 \r
 303                 sws_scale(img_convert_ctx_.get(), av_frame->data, av_frame->linesize, 0, c->height, local_av_frame->data, local_av_frame->linesize);\r
 304 \r
 305                 return local_av_frame;\r
 306         }\r
 307   \r
 308         std::shared_ptr<AVPacket> encode_video_frame(const safe_ptr<core::read_frame>& frame)\r
 309         { \r
 310                 auto c = video_st_->codec;\r
 311  \r
 312                 auto av_frame = convert_video_frame(frame, c);\r
 313                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 314                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper;\r
 315                 av_frame->pts                           = frame_number_++;\r
 316 \r
 317                 int out_size = THROW_ON_ERROR2(avcodec_encode_video(c, video_outbuf_.data(), video_outbuf_.size(), av_frame.get()), "[ffmpeg_consumer]");\r
 318                 if(out_size > 0)\r
 319                 {\r
 320                         safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 321                         {\r
 322                                 av_free_packet(p);\r
 323                                 delete p;\r
 324                         });\r
 325                         av_init_packet(pkt.get());\r
 326  \r
 327                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 328                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 329 \r
 330                         if(c->coded_frame->key_frame)\r
 331                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 332 \r
 333                         pkt->stream_index       = video_st_->index;\r
 334                         pkt->data                       = video_outbuf_.data();\r
 335                         pkt->size                       = out_size;\r
 336  \r
 337                         av_dup_packet(pkt.get());\r
 338                         return pkt;\r
 339                 }       \r
 340                 return nullptr;\r
 341         }\r
 342                 \r
 343         std::shared_ptr<AVPacket> encode_audio_frame(const safe_ptr<core::read_frame>& frame)\r
 344         {                       \r
 345                 auto c = audio_st_->codec;\r
 346 \r
 347                 auto audio_data = core::audio_32_to_16(frame->audio_data());\r
 348                 \r
 349                 safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 350                 {\r
 351                         av_free_packet(p);\r
 352                         delete p;\r
 353                 });\r
 354                 av_init_packet(pkt.get());\r
 355                 \r
 356                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 357                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 358 \r
 359                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 360                 pkt->stream_index = audio_st_->index;\r
 361                 pkt->size                = audio_data.size()*2;\r
 362                 pkt->data                = reinterpret_cast<uint8_t*>(audio_data.data());\r
 363                 \r
 364                 av_dup_packet(pkt.get());\r
 365                 return pkt;\r
 366         }\r
 367                  \r
 368         void send(const safe_ptr<core::read_frame>& frame)\r
 369         {\r
 370                 executor_.begin_invoke([=]\r
 371                 {               \r
 372                         frame_timer_.restart();\r
 373                         auto video = encode_video_frame(frame);\r
 374                         auto audio = encode_audio_frame(frame);\r
 375                         graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 376                         \r
 377                         file_write_executor_.begin_invoke([=]\r
 378                         {\r
 379                                 write_timer_.restart();\r
 380                                 if(video)\r
 381                                         av_write_frame(oc_.get(), video.get());\r
 382                                 if(audio)\r
 383                                         av_write_frame(oc_.get(), audio.get());\r
 384                                 graph_->update_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::string       codec_;\r
 395         const std::string       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::string codec, const std::string& 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, int)\r
 410         {\r
 411                 consumer_.reset();\r
 412                 consumer_.reset(new ffmpeg_consumer(narrow(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 bool has_synchronization_clock() const override\r
 427         {\r
 428                 return false;\r
 429         }\r
 430 \r
 431         virtual size_t buffer_depth() const override\r
 432         {\r
 433                 return 1;\r
 434         }\r
 435 };      \r
 436 \r
 437 safe_ptr<core::frame_consumer> create_ffmpeg_consumer(const std::vector<std::wstring>& params)\r
 438 {\r
 439         if(params.size() < 2 || params[0] != L"FILE")\r
 440                 return core::frame_consumer::empty();\r
 441         \r
 442         // TODO: Ask stakeholders about case where file already exists.\r
 443         boost::filesystem::remove(boost::filesystem::wpath(env::media_folder() + params[1])); // Delete the file if it exists\r
 444         bool key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();\r
 445 \r
 446         std::string codec = "dnxhd";\r
 447         auto codec_it = std::find(params.begin(), params.end(), L"CODEC");\r
 448         if(codec_it != params.end() && codec_it++ != params.end())\r
 449                 codec = narrow(*codec_it);\r
 450 \r
 451         if(codec == "H264" || codec == "h264")\r
 452                 codec = "libx264";\r
 453 \r
 454         std::string options = "";\r
 455         auto options_it = std::find(params.begin(), params.end(), L"OPTIONS");\r
 456         if(options_it != params.end() && options_it++ != params.end())\r
 457                 options = narrow(*options_it);\r
 458 \r
 459         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + params[1], key_only, codec, boost::to_lower_copy(options));\r
 460 }\r
 461 \r
 462 safe_ptr<core::frame_consumer> create_ffmpeg_consumer(const boost::property_tree::ptree& ptree)\r
 463 {\r
 464         std::string filename = ptree.get<std::string>("path");\r
 465         auto key_only            = ptree.get("key-only", false);\r
 466         auto codec                       = ptree.get("codec", "dnxhd");\r
 467         auto options             = ptree.get("options", "");\r
 468         \r
 469         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + widen(filename), key_only, codec, options);\r
 470 }\r
 471 \r
 472 }}\r