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>
  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, int bitrate)\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, bitrate);\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         std::shared_ptr<AVStream> add_video_stream(enum CodecID codec_id, int bitrate)\r
 180         { \r
 181                 auto st = av_new_stream(oc_.get(), 0);\r
 182                 if (!st) \r
 183                 {\r
 184                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 185                                 << msg_info("Could not alloc video-stream")                             \r
 186                                 << boost::errinfo_api_function("av_new_stream"));\r
 187                 }\r
 188 \r
 189                 auto encoder = avcodec_find_encoder(codec_id);\r
 190                 if (!encoder)\r
 191                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 192 \r
 193                 auto c = st->codec;\r
 194 \r
 195                 avcodec_get_context_defaults3(c, encoder);\r
 196 \r
 197                 bitrate *= 1000000;\r
 198                 \r
 199                 c->codec_id                     = codec_id;\r
 200                 c->bit_rate                     = bitrate > 0 ? bitrate : format_desc_.width < 1280 ? 63*1000000 : 220*1000000;\r
 201                 c->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 202                 c->width                        = format_desc_.width;\r
 203                 c->height                       = format_desc_.height;\r
 204                 c->time_base.den        = format_desc_.time_scale;\r
 205                 c->time_base.num        = format_desc_.duration;\r
 206                 c->gop_size                     = 25;\r
 207 \r
 208                 if(c->codec_id == CODEC_ID_PRORES)\r
 209                 {                       \r
 210                         c->bit_rate     = bitrate > 0 ? bitrate : format_desc_.width < 1280 ? 42*1000000 : 147*1000000;\r
 211                         c->pix_fmt      = PIX_FMT_YUV422P10;\r
 212                 }\r
 213                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 214                 {\r
 215                         if(format_desc_.width < 1280 || format_desc_.height < 720)\r
 216                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported dimension"));\r
 217 \r
 218                         c->bit_rate     = bitrate > 0 ? bitrate : 220*1000000;\r
 219                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 220                 }\r
 221                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 222                 {\r
 223                         c->bit_rate     = bitrate > 0 ? bitrate : format_desc_.width < 1280 ? 50*1000000 : 100*1000000;\r
 224                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 225                 }\r
 226                 //else if(st->codec->codec_id == CODEC_ID_H264)\r
 227                 //{                        \r
 228                 //      c->pix_fmt = PIX_FMT_YUV422P;
 229                 //      THROW_ON_ERROR2(av_opt_set(c->priv_data, "preset", "slow", 0), "[ffmpeg_consumer]");\r
 230                 //}\r
 231                 else\r
 232                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported codec"));\r
 233                 \r
 234                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 235                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 236                 \r
 237                 c->thread_count = boost::thread::hardware_concurrency();\r
 238                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 239 \r
 240                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 241                 {\r
 242                         avcodec_close(st->codec);\r
 243                 });\r
 244         }\r
 245         \r
 246         std::shared_ptr<AVStream> add_audio_stream()\r
 247         {\r
 248                 auto st = av_new_stream(oc_.get(), 1);\r
 249                 if (!st) \r
 250                 {\r
 251                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 252                                 << msg_info("Could not alloc audio-stream")                             \r
 253                                 << boost::errinfo_api_function("av_new_stream"));\r
 254                 }\r
 255 \r
 256                 st->codec->codec_id                     = CODEC_ID_PCM_S16LE;\r
 257                 st->codec->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 258                 st->codec->sample_rate          = 48000;\r
 259                 st->codec->channels                     = 2;\r
 260                 st->codec->sample_fmt           = SAMPLE_FMT_S16;\r
 261                 \r
 262                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 263                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 264                 \r
 265                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 266                 if (!codec)\r
 267                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 268 \r
 269                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 270 \r
 271                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 272                 {\r
 273                         avcodec_close(st->codec);\r
 274                 });\r
 275         }\r
 276   \r
 277         std::shared_ptr<AVPacket> encode_video_frame(const safe_ptr<core::read_frame>& frame)\r
 278         { \r
 279                 auto c = video_st_->codec;\r
 280  \r
 281                 if(!img_convert_ctx_) \r
 282                 {\r
 283                         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
 284                         if (img_convert_ctx_ == nullptr) \r
 285                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 286                 }\r
 287 \r
 288                 std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);\r
 289                 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
 290                                 \r
 291                 std::shared_ptr<AVFrame> local_av_frame(avcodec_alloc_frame(), av_free);\r
 292                 local_av_frame->interlaced_frame = format_desc_.field_mode != core::field_mode::progressive;\r
 293                 local_av_frame->top_field_first  = format_desc_.field_mode == core::field_mode::upper;\r
 294                 local_av_frame->pts                              = (frame_number_ * video_st_->time_base.den) * video_st_->time_base.num;\r
 295 \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(img_convert_ctx_.get(), av_frame->data, av_frame->linesize, 0, c->height, local_av_frame->data, local_av_frame->linesize);\r
 300                                 \r
 301                 int out_size = THROW_ON_ERROR2(avcodec_encode_video(c, video_outbuf_.data(), video_outbuf_.size(), local_av_frame.get()), "[ffmpeg_consumer]");\r
 302                 if(out_size > 0)\r
 303                 {\r
 304                         safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 305                         {\r
 306                                 av_free_packet(p);\r
 307                                 delete p;\r
 308                         });\r
 309                         av_init_packet(pkt.get());\r
 310  \r
 311                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 312                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 313 \r
 314                         if(c->coded_frame->key_frame)\r
 315                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 316 \r
 317                         pkt->stream_index       = video_st_->index;\r
 318                         pkt->data                       = video_outbuf_.data();\r
 319                         pkt->size                       = out_size;\r
 320  \r
 321                         av_dup_packet(pkt.get());\r
 322                         return pkt;\r
 323                 }       \r
 324                 return nullptr;\r
 325         }\r
 326                 \r
 327         std::shared_ptr<AVPacket> encode_audio_frame(const safe_ptr<core::read_frame>& frame)\r
 328         {                       \r
 329                 auto c = audio_st_->codec;\r
 330 \r
 331                 auto audio_data = core::audio_32_to_16(frame->audio_data());\r
 332                 \r
 333                 safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 334                 {\r
 335                         av_free_packet(p);\r
 336                         delete p;\r
 337                 });\r
 338                 av_init_packet(pkt.get());\r
 339                 \r
 340                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 341                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 342 \r
 343                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 344                 pkt->stream_index = audio_st_->index;\r
 345                 pkt->size                = audio_data.size()*2;\r
 346                 pkt->data                = reinterpret_cast<uint8_t*>(audio_data.data());\r
 347                 \r
 348                 av_dup_packet(pkt.get());\r
 349                 return pkt;\r
 350         }\r
 351                  \r
 352         void send(const safe_ptr<core::read_frame>& frame)\r
 353         {\r
 354                 executor_.begin_invoke([=]\r
 355                 {               \r
 356                         frame_timer_.restart();\r
 357                         auto video = encode_video_frame(frame);\r
 358                         auto audio = encode_audio_frame(frame);\r
 359                         graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 360                         \r
 361                         file_write_executor_.begin_invoke([=]\r
 362                         {\r
 363                                 write_timer_.restart();\r
 364                                 if(video)\r
 365                                         av_write_frame(oc_.get(), video.get());\r
 366                                 if(audio)\r
 367                                         av_write_frame(oc_.get(), audio.get());\r
 368                                 ++frame_number_;\r
 369                                 graph_->update_value("write-time", write_timer_.elapsed()*format_desc_.fps*0.5);\r
 370                         });\r
 371                 });\r
 372         }\r
 373 };\r
 374 \r
 375 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 376 {\r
 377         const std::wstring      filename_;\r
 378         const bool                      key_only_;\r
 379         const std::string       codec_;\r
 380         const int                       bitrate_;\r
 381 \r
 382         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 383 \r
 384 public:\r
 385 \r
 386         ffmpeg_consumer_proxy(const std::wstring& filename, bool key_only, const std::string codec, int bitrate)\r
 387                 : filename_(filename)\r
 388                 , key_only_(key_only)\r
 389                 , codec_(boost::to_lower_copy(codec))\r
 390                 , bitrate_(bitrate)\r
 391         {\r
 392         }\r
 393         \r
 394         virtual void initialize(const core::video_format_desc& format_desc, int, int)\r
 395         {\r
 396                 consumer_.reset();\r
 397                 consumer_.reset(new ffmpeg_consumer(narrow(filename_), format_desc, codec_, bitrate_));\r
 398         }\r
 399         \r
 400         virtual bool send(const safe_ptr<core::read_frame>& frame) override\r
 401         {\r
 402                 consumer_->send(frame);\r
 403                 return true;\r
 404         }\r
 405         \r
 406         virtual std::wstring print() const override\r
 407         {\r
 408                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 409         }\r
 410                 \r
 411         virtual bool has_synchronization_clock() const override\r
 412         {\r
 413                 return false;\r
 414         }\r
 415 \r
 416         virtual size_t buffer_depth() const override\r
 417         {\r
 418                 return 1;\r
 419         }\r
 420 };      \r
 421 \r
 422 safe_ptr<core::frame_consumer> create_ffmpeg_consumer(const std::vector<std::wstring>& params)\r
 423 {\r
 424         if(params.size() < 2 || params[0] != L"FILE")\r
 425                 return core::frame_consumer::empty();\r
 426         \r
 427         // TODO: Ask stakeholders about case where file already exists.\r
 428         boost::filesystem::remove(boost::filesystem::wpath(env::media_folder() + params[1])); // Delete the file if it exists\r
 429         bool key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();\r
 430 \r
 431         std::string codec = "dnxhd";\r
 432         auto codec_it = std::find(params.begin(), params.end(), L"CODEC");\r
 433         if(codec_it != params.end() && codec_it++ != params.end())\r
 434                 codec = narrow(*codec_it);\r
 435 \r
 436         if(codec == "H264" || codec == "h264")\r
 437                 codec = "libx264";\r
 438 \r
 439         int bitrate = 0;        \r
 440         auto bitrate_it = std::find(params.begin(), params.end(), L"BITRATE");\r
 441         if(bitrate_it != params.end() && bitrate_it++ != params.end())\r
 442                 bitrate = boost::lexical_cast<int>(*bitrate_it);\r
 443 \r
 444         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + params[1], key_only, codec, bitrate);\r
 445 }\r
 446 \r
 447 safe_ptr<core::frame_consumer> create_ffmpeg_consumer(const boost::property_tree::ptree& ptree)\r
 448 {\r
 449         std::string filename = ptree.get<std::string>("path");\r
 450         auto key_only            = ptree.get("key-only", false);\r
 451         auto codec                       = ptree.get("codec", "dnxhd");\r
 452         auto bitrate             = ptree.get("bitrate", 0);\r
 453         \r
 454         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + widen(filename), key_only, codec, bitrate);\r
 455 }\r
 456 \r
 457 }}\r