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 }\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::string                                               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         std::vector<uint8_t>                                    audio_outbuf_;\r
  81 \r
  82         std::vector<int16_t>                                    audio_input_buffer_;\r
  83 \r
  84         // Video\r
  85         std::shared_ptr<AVStream>                               video_st_;\r
  86         std::vector<uint8_t>                                    video_outbuf_;\r
  87 \r
  88         std::vector<uint8_t>                                    picture_buf_;\r
  89         std::shared_ptr<SwsContext>                             img_convert_ctx_;\r
  90         \r
  91 public:\r
  92         ffmpeg_consumer(const std::string& filename, const core::video_format_desc& format_desc, const std::string& codec, int bitrate)\r
  93                 : filename_(filename + ".mov")\r
  94                 , video_outbuf_(1920*1080*8)\r
  95                 , audio_outbuf_(48000)\r
  96                 , oc_(avformat_alloc_context(), av_free)\r
  97                 , format_desc_(format_desc)\r
  98                 , executor_(print())\r
  99                 , file_write_executor_(print() + L"/output")\r
 100         {\r
 101                 graph_->add_guide("frame-time", 0.5);\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, 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, filename_.c_str());\r
 117                 \r
 118                 auto video_codec = avcodec_find_encoder_by_name(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, bitrate);\r
 124                 audio_st_ = add_audio_stream();\r
 125                                 \r
 126                 dump_format(oc_.get(), 0, 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, 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                 file_write_executor_.stop();\r
 140                 file_write_executor_.join();\r
 141 \r
 142                 executor_.stop();\r
 143                 executor_.join();\r
 144                 \r
 145                 try\r
 146                 {\r
 147                         THROW_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                         for(size_t i = 0; i < oc_->nb_streams; i++) \r
 153                         {\r
 154                                 av_freep(&oc_->streams[i]->codec);\r
 155                                 av_freep(&oc_->streams[i]);\r
 156                         }\r
 157 \r
 158                         if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 159                                 THROW_ON_ERROR2(avio_close(oc_->pb), "[ffmpeg_consumer]"); // Close the output ffmpeg.\r
 160 \r
 161                         CASPAR_LOG(info) << print() << L" Successfully Uninitialized."; \r
 162                 }\r
 163                 catch(...)\r
 164                 {\r
 165                         CASPAR_LOG_CURRENT_EXCEPTION();\r
 166                 }\r
 167 \r
 168         }\r
 169                         \r
 170         std::wstring print() const\r
 171         {\r
 172                 return L"ffmpeg[" + widen(filename_) + L"]";\r
 173         }\r
 174 \r
 175         std::shared_ptr<AVStream> add_video_stream(enum CodecID codec_id, int bitrate)\r
 176         { \r
 177                 auto st = av_new_stream(oc_.get(), 0);\r
 178                 if (!st) \r
 179                 {\r
 180                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 181                                 << msg_info("Could not alloc video-stream")                             \r
 182                                 << boost::errinfo_api_function("av_new_stream"));\r
 183                 }\r
 184 \r
 185                 bitrate *= 1000000;\r
 186                 \r
 187                 st->codec->codec_id                     = codec_id;\r
 188                 st->codec->bit_rate                     = bitrate > 0 ? bitrate : format_desc_.width < 1280 ? 42*1000000 : 147*1000000;\r
 189                 st->codec->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 190                 st->codec->width                        = format_desc_.width;\r
 191                 st->codec->height                       = format_desc_.height;\r
 192                 st->codec->time_base.den        = format_desc_.time_scale;\r
 193                 st->codec->time_base.num        = format_desc_.duration;\r
 194 \r
 195                 if(st->codec->codec_id == CODEC_ID_PRORES)\r
 196                 {                       \r
 197                         st->codec->bit_rate     = bitrate > 0 ? bitrate : format_desc_.width < 1280 ? 42*1000000 : 147*1000000;\r
 198                         st->codec->pix_fmt      = PIX_FMT_YUV422P10;\r
 199                 }\r
 200                 else if(st->codec->codec_id == CODEC_ID_DNXHD)\r
 201                 {\r
 202                         if(format_desc_.width < 1280 || format_desc_.height < 720)\r
 203                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported dimension"));\r
 204 \r
 205                         st->codec->bit_rate     = bitrate > 0 ? bitrate : 145*1000000;\r
 206                         st->codec->pix_fmt      = PIX_FMT_YUV422P;\r
 207 \r
 208                 }\r
 209                 else if(st->codec->codec_id == CODEC_ID_DVVIDEO)\r
 210                 {\r
 211                         st->codec->bit_rate     = bitrate > 0 ? bitrate : format_desc_.width < 1280 ? 50*1000000 : 100*1000000;\r
 212                         st->codec->pix_fmt      = PIX_FMT_YUV422P;\r
 213                 }\r
 214                 //else if(st->codec->codec_id == CODEC_ID_H264)\r
 215                 //{                     \r
 216                 //      st->codec->pix_fmt              = PIX_FMT_YUV422P;\r
 217                 //      st->codec->me_range             = 16;\r
 218                 //      st->codec->max_qdiff    = 4;\r
 219                 //      st->codec->qmin                 = 10;\r
 220                 //      st->codec->qmax                 = 51;\r
 221                 //      st->codec->qcompress    = 0.6;\r
 222                 //      st->codec->gop_size             = 25;\r
 223                 //}\r
 224                 else\r
 225                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported codec"));\r
 226                 \r
 227                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 228                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 229 \r
 230                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 231                 if (!codec)\r
 232                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 233 \r
 234                 st->codec->thread_count = boost::thread::hardware_concurrency();\r
 235                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 236 \r
 237                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 238                 {\r
 239                         avcodec_close(st->codec);\r
 240                 });\r
 241         }\r
 242         \r
 243         std::shared_ptr<AVStream> add_audio_stream()\r
 244         {\r
 245                 auto st = av_new_stream(oc_.get(), 1);\r
 246                 if (!st) \r
 247                 {\r
 248                         BOOST_THROW_EXCEPTION(caspar_exception() \r
 249                                 << msg_info("Could not alloc audio-stream")                             \r
 250                                 << boost::errinfo_api_function("av_new_stream"));\r
 251                 }\r
 252 \r
 253                 st->codec->codec_id                     = CODEC_ID_PCM_S16LE;\r
 254                 st->codec->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 255                 st->codec->sample_rate          = 48000;\r
 256                 st->codec->channels                     = 2;\r
 257                 st->codec->sample_fmt           = SAMPLE_FMT_S16;\r
 258                 \r
 259                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 260                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 261                 \r
 262                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 263                 if (!codec)\r
 264                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 265 \r
 266                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 267 \r
 268                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 269                 {\r
 270                         avcodec_close(st->codec);\r
 271                 });\r
 272         }\r
 273   \r
 274         std::shared_ptr<AVPacket> encode_video_frame(const safe_ptr<core::read_frame>& frame)\r
 275         { \r
 276                 auto c = video_st_->codec;\r
 277  \r
 278                 if(!img_convert_ctx_) \r
 279                 {\r
 280                         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
 281                         if (img_convert_ctx_ == nullptr) \r
 282                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 283                 }\r
 284 \r
 285                 std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);\r
 286                 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
 287                                 \r
 288                 std::shared_ptr<AVFrame> local_av_frame(avcodec_alloc_frame(), av_free);\r
 289                 local_av_frame->interlaced_frame = format_desc_.field_mode != core::field_mode::progressive;\r
 290                 local_av_frame->top_field_first  = format_desc_.field_mode == core::field_mode::upper;\r
 291 \r
 292                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, format_desc_.width, format_desc_.height));\r
 293                 avpicture_fill(reinterpret_cast<AVPicture*>(local_av_frame.get()), picture_buf_.data(), c->pix_fmt, format_desc_.width, format_desc_.height);\r
 294 \r
 295                 sws_scale(img_convert_ctx_.get(), av_frame->data, av_frame->linesize, 0, c->height, local_av_frame->data, local_av_frame->linesize);\r
 296                                 \r
 297                 int out_size = THROW_ON_ERROR2(avcodec_encode_video(c, video_outbuf_.data(), video_outbuf_.size(), local_av_frame.get()), "[ffmpeg_consumer]");\r
 298                 if(out_size > 0)\r
 299                 {\r
 300                         safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 301                         {\r
 302                                 av_free_packet(p);\r
 303                                 delete p;\r
 304                         });\r
 305                         av_init_packet(pkt.get());\r
 306  \r
 307                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 308                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 309 \r
 310                         if(c->coded_frame->key_frame)\r
 311                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 312 \r
 313                         pkt->stream_index       = video_st_->index;\r
 314                         pkt->data                       = video_outbuf_.data();\r
 315                         pkt->size                       = out_size;\r
 316  \r
 317                         av_dup_packet(pkt.get());\r
 318                         return pkt;\r
 319                 }       \r
 320                 return nullptr;\r
 321         }\r
 322                 \r
 323         std::shared_ptr<AVPacket> encode_audio_frame(const safe_ptr<core::read_frame>& frame)\r
 324         {                       \r
 325                 auto c = audio_st_->codec;\r
 326 \r
 327                 auto audio_data = core::audio_32_to_16(frame->audio_data());\r
 328                 \r
 329                 safe_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 330                 {\r
 331                         av_free_packet(p);\r
 332                         delete p;\r
 333                 });\r
 334                 av_init_packet(pkt.get());\r
 335                 \r
 336                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 337                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 338 \r
 339                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 340                 pkt->stream_index = audio_st_->index;\r
 341                 pkt->size                = audio_data.size()*2;\r
 342                 pkt->data                = reinterpret_cast<uint8_t*>(audio_data.data());\r
 343                 \r
 344                 av_dup_packet(pkt.get());\r
 345                 return pkt;\r
 346         }\r
 347                  \r
 348         void send(const safe_ptr<core::read_frame>& frame)\r
 349         {\r
 350                 executor_.begin_invoke([=]\r
 351                 {               \r
 352                         frame_timer_.restart();\r
 353                         auto video = encode_video_frame(frame);\r
 354                         auto audio = encode_audio_frame(frame);\r
 355                         graph_->update_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 356                         \r
 357                         file_write_executor_.begin_invoke([=]\r
 358                         {\r
 359                                 write_timer_.restart();\r
 360                                 if(video)\r
 361                                         av_write_frame(oc_.get(), video.get());\r
 362                                 if(audio)\r
 363                                         av_write_frame(oc_.get(), audio.get());\r
 364                                 graph_->update_value("write-time", write_timer_.elapsed()*format_desc_.fps*0.5);\r
 365                         });\r
 366                 });\r
 367         }\r
 368 };\r
 369 \r
 370 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 371 {\r
 372         const std::wstring      filename_;\r
 373         const bool                      key_only_;\r
 374         const std::string       codec_;\r
 375         const int                       bitrate_;\r
 376 \r
 377         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 378 \r
 379 public:\r
 380 \r
 381         ffmpeg_consumer_proxy(const std::wstring& filename, bool key_only, const std::string codec, int bitrate)\r
 382                 : filename_(filename)\r
 383                 , key_only_(key_only)\r
 384                 , codec_(boost::to_lower_copy(codec))\r
 385                 , bitrate_(bitrate)\r
 386         {\r
 387         }\r
 388         \r
 389         virtual void initialize(const core::video_format_desc& format_desc, int, int)\r
 390         {\r
 391                 consumer_.reset();\r
 392                 consumer_.reset(new ffmpeg_consumer(narrow(filename_), format_desc, codec_, bitrate_));\r
 393         }\r
 394         \r
 395         virtual bool send(const safe_ptr<core::read_frame>& frame) override\r
 396         {\r
 397                 consumer_->send(frame);\r
 398                 return true;\r
 399         }\r
 400         \r
 401         virtual std::wstring print() const override\r
 402         {\r
 403                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 404         }\r
 405                 \r
 406         virtual bool has_synchronization_clock() const override\r
 407         {\r
 408                 return false;\r
 409         }\r
 410 \r
 411         virtual size_t buffer_depth() const override\r
 412         {\r
 413                 return 1;\r
 414         }\r
 415 };      \r
 416 \r
 417 safe_ptr<core::frame_consumer> create_ffmpeg_consumer(const std::vector<std::wstring>& params)\r
 418 {\r
 419         if(params.size() < 2 || params[0] != L"FILE")\r
 420                 return core::frame_consumer::empty();\r
 421         \r
 422         // TODO: Ask stakeholders about case where file already exists.\r
 423         boost::filesystem::remove(boost::filesystem::wpath(env::media_folder() + params[1])); // Delete the file if it exists\r
 424         bool key_only = std::find(params.begin(), params.end(), L"KEY_ONLY") != params.end();\r
 425 \r
 426         std::string codec = "dnxhd";\r
 427         auto codec_it = std::find(params.begin(), params.end(), L"CODEC");\r
 428         if(codec_it != params.end() && codec_it++ != params.end())\r
 429                 codec = narrow(*codec_it);\r
 430 \r
 431         int bitrate = 0;        \r
 432         auto bitrate_it = std::find(params.begin(), params.end(), L"BITRATE");\r
 433         if(bitrate_it != params.end() && bitrate_it++ != params.end())\r
 434                 bitrate = boost::lexical_cast<int>(*bitrate_it);\r
 435 \r
 436         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + params[1], key_only, codec, bitrate);\r
 437 }\r
 438 \r
 439 safe_ptr<core::frame_consumer> create_ffmpeg_consumer(const boost::property_tree::ptree& ptree)\r
 440 {\r
 441         std::string filename = ptree.get<std::string>("path");\r
 442         auto key_only            = ptree.get("key-only", false);\r
 443         auto codec                       = ptree.get("codec", "dnxhd");\r
 444         auto bitrate             = ptree.get("bitrate", 0);\r
 445         \r
 446         return make_safe<ffmpeg_consumer_proxy>(env::media_folder() + widen(filename), key_only, codec, bitrate);\r
 447 }\r
 448 \r
 449 }}\r