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 "../producer/audio/audio_resampler.h"\r
  29 \r
  30 #include <core/frame/frame.h>\r
  31 #include <core/mixer/audio/audio_util.h>\r
  32 #include <core/consumer/frame_consumer.h>\r
  33 #include <core/video_format.h>\r
  34 \r
  35 #include <common/env.h>\r
  36 #include <common/utf.h>\r
  37 #include <common/param.h>\r
  38 #include <common/executor.h>\r
  39 #include <common/diagnostics/graph.h>\r
  40 #include <common/array.h>\r
  41 #include <common/memory.h>\r
  42 \r
  43 #include <boost/algorithm/string.hpp>\r
  44 #include <boost/timer.hpp>\r
  45 #include <boost/property_tree/ptree.hpp>\r
  46 #include <boost/filesystem.hpp>\r
  47 #include <boost/range/algorithm.hpp>\r
  48 #include <boost/range/algorithm_ext.hpp>\r
  49 #include <boost/lexical_cast.hpp>\r
  50 \r
  51 #if defined(_MSC_VER)\r
  52 #pragma warning (push)\r
  53 #pragma warning (disable : 4244)\r
  54 #endif\r
  55 extern "C" \r
  56 {\r
  57         #define __STDC_CONSTANT_MACROS\r
  58         #define __STDC_LIMIT_MACROS\r
  59         #include <libavformat/avformat.h>\r
  60         #include <libswscale/swscale.h>\r
  61         #include <libavutil/opt.h>\r
  62         #include <libavutil/pixdesc.h>\r
  63         #include <libavutil/parseutils.h>\r
  64 }\r
  65 #if defined(_MSC_VER)\r
  66 #pragma warning (pop)\r
  67 #endif\r
  68 \r
  69 namespace caspar { namespace ffmpeg {\r
  70         \r
  71 int av_opt_set(void *obj, const char *name, const char *val, int search_flags)\r
  72 {\r
  73         AVClass* av_class = *(AVClass**)obj;\r
  74 \r
  75         if((strcmp(name, "pix_fmt") == 0 || strcmp(name, "pixel_format") == 0) && strcmp(av_class->class_name, "AVCodecContext") == 0)\r
  76         {\r
  77                 AVCodecContext* c = (AVCodecContext*)obj;               \r
  78                 auto pix_fmt = av_get_pix_fmt(val);\r
  79                 if(pix_fmt == PIX_FMT_NONE)\r
  80                         return -1;              \r
  81                 c->pix_fmt = pix_fmt;\r
  82                 return 0;\r
  83         }\r
  84         if((strcmp(name, "r") == 0 || strcmp(name, "frame_rate") == 0) && strcmp(av_class->class_name, "AVCodecContext") == 0)\r
  85         {\r
  86                 AVCodecContext* c = (AVCodecContext*)obj;       \r
  87 \r
  88                 if(c->codec_type != AVMEDIA_TYPE_VIDEO)\r
  89                         return -1;\r
  90 \r
  91                 AVRational rate;\r
  92                 int ret = av_parse_video_rate(&rate, val);\r
  93                 if(ret < 0)\r
  94                         return ret;\r
  95 \r
  96                 c->time_base.num = rate.den;\r
  97                 c->time_base.den = rate.num;\r
  98                 return 0;\r
  99         }\r
 100 \r
 101         return ::av_opt_set(obj, name, val, search_flags);\r
 102 }\r
 103 \r
 104 struct option\r
 105 {\r
 106         std::string name;\r
 107         std::string value;\r
 108 \r
 109         option(std::string name, std::string value)\r
 110                 : name(std::move(name))\r
 111                 , value(std::move(value))\r
 112         {\r
 113         }\r
 114 };\r
 115         \r
 116 struct output_format\r
 117 {\r
 118         AVOutputFormat* format;\r
 119         int                             width;\r
 120         int                             height;\r
 121         CodecID                 vcodec;\r
 122         CodecID                 acodec;\r
 123         int                             croptop;\r
 124         int                             cropbot;\r
 125 \r
 126         output_format(const core::video_format_desc& format_desc, const std::string& filename, std::vector<option>& options)\r
 127                 : format(av_guess_format(nullptr, filename.c_str(), nullptr))\r
 128                 , width(format_desc.width)\r
 129                 , height(format_desc.height)\r
 130                 , vcodec(CODEC_ID_NONE)\r
 131                 , acodec(CODEC_ID_NONE)\r
 132                 , croptop(0)\r
 133                 , cropbot(0)\r
 134         {\r
 135                 boost::range::remove_erase_if(options, [&](const option& o)\r
 136                 {\r
 137                         return set_opt(o.name, o.value);\r
 138                 });\r
 139                 \r
 140                 if(vcodec == CODEC_ID_NONE)\r
 141                         vcodec = format->video_codec;\r
 142 \r
 143                 if(acodec == CODEC_ID_NONE)\r
 144                         acodec = format->audio_codec;\r
 145                 \r
 146                 if(vcodec == CODEC_ID_NONE)\r
 147                         vcodec = CODEC_ID_H264;\r
 148                 \r
 149                 if(acodec == CODEC_ID_NONE)\r
 150                         acodec = CODEC_ID_PCM_S16LE;\r
 151         }\r
 152         \r
 153         bool set_opt(const std::string& name, const std::string& value)\r
 154         {\r
 155                 //if(name == "target")\r
 156                 //{ \r
 157                 //      enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;\r
 158                 //      \r
 159                 //      if(name.find("pal-") != std::string::npos)\r
 160                 //              norm = PAL;\r
 161                 //      else if(name.find("ntsc-") != std::string::npos)\r
 162                 //              norm = NTSC;\r
 163 \r
 164                 //      if(norm == UNKNOWN)\r
 165                 //              BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("target"));\r
 166                 //      \r
 167                 //      if (name.find("-dv") != std::string::npos) \r
 168                 //      {\r
 169                 //              set_opt("f", "dv");\r
 170                 //              set_opt("s", norm == PAL ? "720x576" : "720x480");\r
 171                 //              //set_opt("pix_fmt", name.find("-dv50") != std::string::npos ? "yuv422p" : norm == PAL ? "yuv420p" : "yuv411p");\r
 172                 //              //set_opt("ar", "48000");\r
 173                 //              //set_opt("ac", "2");\r
 174                 //      } \r
 175                 //}\r
 176                 if(name == "f")\r
 177                 {\r
 178                         format = av_guess_format(value.c_str(), nullptr, nullptr);\r
 179 \r
 180                         if(format == nullptr)\r
 181                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("f"));\r
 182 \r
 183                         return true;\r
 184                 }\r
 185                 else if(name == "vcodec")\r
 186                 {\r
 187                         auto c = avcodec_find_encoder_by_name(value.c_str());\r
 188                         if(c == nullptr)\r
 189                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("vcodec"));\r
 190 \r
 191                         vcodec = avcodec_find_encoder_by_name(value.c_str())->id;\r
 192                         return true;\r
 193 \r
 194                 }\r
 195                 else if(name == "acodec")\r
 196                 {\r
 197                         auto c = avcodec_find_encoder_by_name(value.c_str());\r
 198                         if(c == nullptr)\r
 199                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("acodec"));\r
 200 \r
 201                         acodec = avcodec_find_encoder_by_name(value.c_str())->id;\r
 202 \r
 203                         return true;\r
 204                 }\r
 205                 else if(name == "s")\r
 206                 {\r
 207                         if(av_parse_video_size(&width, &height, value.c_str()) < 0)\r
 208                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("s"));\r
 209                         \r
 210                         return true;\r
 211                 }\r
 212                 else if(name == "croptop")\r
 213                 {\r
 214                         croptop = boost::lexical_cast<int>(value);\r
 215 \r
 216                         return true;\r
 217                 }\r
 218                 else if(name == "cropbot")\r
 219                 {\r
 220                         cropbot = boost::lexical_cast<int>(value);\r
 221 \r
 222                         return true;\r
 223                 }\r
 224                 \r
 225                 return false;\r
 226         }\r
 227 };\r
 228 \r
 229 typedef std::vector<uint8_t, tbb::cache_aligned_allocator<uint8_t>>     byte_vector;\r
 230 \r
 231 struct ffmpeg_consumer : boost::noncopyable\r
 232 {               \r
 233         const std::string                                               filename_;\r
 234                 \r
 235         const std::shared_ptr<AVFormatContext>  oc_;\r
 236         const core::video_format_desc                   format_desc_;\r
 237         \r
 238         const spl::shared_ptr<diagnostics::graph>               graph_;\r
 239 \r
 240         executor                                                                encode_executor_;\r
 241         executor                                                                write_executor_;\r
 242         \r
 243         std::shared_ptr<AVStream>                               audio_st_;\r
 244         std::shared_ptr<AVStream>                               video_st_;\r
 245         \r
 246         byte_vector                                                             audio_outbuf_;\r
 247         byte_vector                                                             audio_buf_;\r
 248         byte_vector                                                             video_outbuf_;\r
 249         byte_vector                                                             picture_buf_;\r
 250         std::shared_ptr<audio_resampler>                swr_;\r
 251         std::shared_ptr<SwsContext>                             sws_;\r
 252 \r
 253         int64_t                                                                 in_frame_number_;\r
 254         int64_t                                                                 out_frame_number_;\r
 255 \r
 256         output_format                                                   output_format_;\r
 257         \r
 258 public:\r
 259         ffmpeg_consumer(const std::string& filename, const core::video_format_desc& format_desc, std::vector<option> options)\r
 260                 : filename_(filename)\r
 261                 , video_outbuf_(1920*1080*8)\r
 262                 , audio_outbuf_(10000)\r
 263                 , oc_(avformat_alloc_context(), av_free)\r
 264                 , format_desc_(format_desc)\r
 265                 , encode_executor_(print())\r
 266                 , write_executor_(print() + L"/output")\r
 267                 , in_frame_number_(0)\r
 268                 , out_frame_number_(0)\r
 269                 , output_format_(format_desc, filename, options)\r
 270         {\r
 271                 // TODO: Ask stakeholders about case where file already exists.\r
 272                 boost::filesystem::remove(boost::filesystem::path(env::media_folder() + u16(filename))); // Delete the file if it exists\r
 273 \r
 274                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 275                 graph_->set_text(print());\r
 276                 diagnostics::register_graph(graph_);\r
 277 \r
 278                 encode_executor_.set_capacity(8);\r
 279                 write_executor_.set_capacity(8);\r
 280 \r
 281                 oc_->oformat = output_format_.format;\r
 282                                 \r
 283                 THROW_ON_ERROR2(av_set_parameters(oc_.get(), nullptr), "[ffmpeg_consumer]");\r
 284 \r
 285                 strcpy_s(oc_->filename, filename_.c_str());\r
 286                 \r
 287                 //  Add the audio and video streams using the default format codecs     and initialize the codecs.\r
 288                 auto options2 = options;\r
 289                 video_st_ = add_video_stream(options2);\r
 290                 audio_st_ = add_audio_stream(options);\r
 291                                 \r
 292                 dump_format(oc_.get(), 0, filename_.c_str(), 1);\r
 293                  \r
 294                 // Open the output ffmpeg, if needed.\r
 295                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 296                         THROW_ON_ERROR2(avio_open(&oc_->pb, filename_.c_str(), URL_WRONLY), "[ffmpeg_consumer]");\r
 297                                 \r
 298                 THROW_ON_ERROR2(av_write_header(oc_.get()), "[ffmpeg_consumer]");\r
 299 \r
 300                 if(options.size() > 0)\r
 301                 {\r
 302                         BOOST_FOREACH(auto& option, options)\r
 303                                 CASPAR_LOG(warning) << L"Invalid option: -" << u16(option.name) << L" " << u16(option.value);\r
 304                 }\r
 305 \r
 306                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 307         }\r
 308 \r
 309         ~ffmpeg_consumer()\r
 310         {    \r
 311                 encode_executor_.wait();\r
 312                 write_executor_.wait();\r
 313                 \r
 314                 LOG_ON_ERROR2(av_write_trailer(oc_.get()), "[ffmpeg_consumer]");\r
 315                 \r
 316                 audio_st_.reset();\r
 317                 video_st_.reset();\r
 318                           \r
 319                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 320                         LOG_ON_ERROR2(avio_close(oc_->pb), "[ffmpeg_consumer]"); // Close the output ffmpeg.\r
 321 \r
 322                 CASPAR_LOG(info) << print() << L" Successfully Uninitialized."; \r
 323         }\r
 324                         \r
 325         std::wstring print() const\r
 326         {\r
 327                 return L"ffmpeg[" + u16(filename_) + L"]";\r
 328         }\r
 329 \r
 330         std::shared_ptr<AVStream> add_video_stream(std::vector<option>& options)\r
 331         { \r
 332                 if(output_format_.vcodec == CODEC_ID_NONE)\r
 333                         return nullptr;\r
 334 \r
 335                 auto st = av_new_stream(oc_.get(), 0);\r
 336                 if (!st)                \r
 337                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate video-stream.") << boost::errinfo_api_function("av_new_stream"));              \r
 338 \r
 339                 auto encoder = avcodec_find_encoder(output_format_.vcodec);\r
 340                 if (!encoder)\r
 341                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Codec not found."));\r
 342 \r
 343                 auto c = st->codec;\r
 344 \r
 345                 avcodec_get_context_defaults3(c, encoder);\r
 346                                 \r
 347                 c->codec_id                     = output_format_.vcodec;\r
 348                 c->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 349                 c->width                        = output_format_.width;\r
 350                 c->height                       = output_format_.height - output_format_.croptop - output_format_.cropbot;\r
 351                 c->time_base.den        = format_desc_.time_scale;\r
 352                 c->time_base.num        = format_desc_.duration;\r
 353                 c->gop_size                     = 25;\r
 354                 c->flags                   |= format_desc_.field_mode == core::field_mode::progressive ? 0 : (CODEC_FLAG_INTERLACED_ME | CODEC_FLAG_INTERLACED_DCT);\r
 355                 if(c->pix_fmt == PIX_FMT_NONE)\r
 356                         c->pix_fmt = PIX_FMT_YUV420P;\r
 357 \r
 358                 if(c->codec_id == CODEC_ID_PRORES)\r
 359                 {                       \r
 360                         c->bit_rate     = c->width < 1280 ? 63*1000000 : 220*1000000;\r
 361                         c->pix_fmt      = PIX_FMT_YUV422P10;\r
 362                 }\r
 363                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 364                 {\r
 365                         if(c->width < 1280 || c->height < 720)\r
 366                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Unsupported video dimensions."));\r
 367 \r
 368                         c->bit_rate     = 220*1000000;\r
 369                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 370                 }\r
 371                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 372                 {\r
 373                         c->width = c->height == 1280 ? 960  : c->width;\r
 374                         \r
 375                         if(format_desc_.format == core::video_format::ntsc)\r
 376                                 c->pix_fmt = PIX_FMT_YUV411P;\r
 377                         else if(format_desc_.format == core::video_format::pal)\r
 378                                 c->pix_fmt = PIX_FMT_YUV420P;\r
 379                         else // dv50\r
 380                                 c->pix_fmt = PIX_FMT_YUV422P;\r
 381                         \r
 382                         if(format_desc_.duration == 1001)                       \r
 383                                 c->width = c->height == 1080 ? 1280 : c->width;                 \r
 384                         else\r
 385                                 c->width = c->height == 1080 ? 1440 : c->width;                 \r
 386                 }\r
 387                 else if(c->codec_id == CODEC_ID_H264)\r
 388                 {                          \r
 389                         c->pix_fmt = PIX_FMT_YUV420P;    \r
 390                         if(options.empty())\r
 391                         {\r
 392                                 av_opt_set(c->priv_data, "preset", "ultrafast", 0);\r
 393                                 av_opt_set(c->priv_data, "tune",   "fastdecode",   0);\r
 394                                 av_opt_set(c->priv_data, "crf",    "5",     0);\r
 395                         }\r
 396                 }\r
 397                 else if(c->codec_id == CODEC_ID_QTRLE)\r
 398                 {\r
 399                         c->pix_fmt = PIX_FMT_ARGB;\r
 400                 }\r
 401                                 \r
 402                 c->max_b_frames = 0; // b-frames not supported.\r
 403                                 \r
 404                 boost::range::remove_erase_if(options, [&](const option& o)\r
 405                 {\r
 406                         return ffmpeg::av_opt_set(c, o.name.c_str(), o.value.c_str(), AV_OPT_SEARCH_CHILDREN) > -1;\r
 407                 });\r
 408                                 \r
 409                 if(output_format_.format->flags & AVFMT_GLOBALHEADER)\r
 410                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 411                 \r
 412                 c->thread_count = boost::thread::hardware_concurrency();\r
 413                 if(avcodec_open(c, encoder) < 0)\r
 414                 {\r
 415                         c->thread_count = 1;\r
 416                         THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 417                 }\r
 418 \r
 419                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 420                 {\r
 421                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");\r
 422                         av_freep(&st->codec);\r
 423                         av_freep(&st);\r
 424                 });\r
 425         }\r
 426                 \r
 427         std::shared_ptr<AVStream> add_audio_stream(std::vector<option>& options)\r
 428         {\r
 429                 if(output_format_.acodec == CODEC_ID_NONE)\r
 430                         return nullptr;\r
 431 \r
 432                 auto st = av_new_stream(oc_.get(), 1);\r
 433                 if(!st)\r
 434                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate audio-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 435                 \r
 436                 auto encoder = avcodec_find_encoder(output_format_.acodec);\r
 437                 if (!encoder)\r
 438                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 439                 \r
 440                 auto c = st->codec;\r
 441 \r
 442                 avcodec_get_context_defaults3(c, encoder);\r
 443 \r
 444                 c->codec_id                     = output_format_.acodec;\r
 445                 c->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 446                 c->sample_rate          = 48000;\r
 447                 c->channels                     = 2;\r
 448                 c->sample_fmt           = SAMPLE_FMT_S16;\r
 449 \r
 450                 if(output_format_.vcodec == CODEC_ID_FLV1)              \r
 451                         c->sample_rate  = 44100;                \r
 452 \r
 453                 if(output_format_.format->flags & AVFMT_GLOBALHEADER)\r
 454                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 455                                 \r
 456                 boost::range::remove_erase_if(options, [&](const option& o)\r
 457                 {\r
 458                         return ffmpeg::av_opt_set(c, o.name.c_str(), o.value.c_str(), AV_OPT_SEARCH_CHILDREN) > -1;\r
 459                 });\r
 460 \r
 461                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 462 \r
 463                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 464                 {\r
 465                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");;\r
 466                         av_freep(&st->codec);\r
 467                         av_freep(&st);\r
 468                 });\r
 469         }\r
 470         \r
 471         std::shared_ptr<AVFrame> convert_video(core::const_frame frame, AVCodecContext* c)\r
 472         {\r
 473                 if(!sws_) \r
 474                 {\r
 475                         sws_.reset(sws_getContext(format_desc_.width, \r
 476                                                                           format_desc_.height - output_format_.croptop  - output_format_.cropbot, \r
 477                                                                           PIX_FMT_BGRA,\r
 478                                                                           c->width,\r
 479                                                                           c->height, \r
 480                                                                           c->pix_fmt, \r
 481                                                                           SWS_BICUBIC, nullptr, nullptr, nullptr), \r
 482                                                 sws_freeContext);\r
 483                         if (sws_ == nullptr) \r
 484                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 485                 }\r
 486 \r
 487                 std::shared_ptr<AVFrame> in_frame(avcodec_alloc_frame(), av_free);\r
 488 \r
 489                 avpicture_fill(reinterpret_cast<AVPicture*>(in_frame.get()), \r
 490                                            const_cast<uint8_t*>(frame.image_data().begin()),\r
 491                                            PIX_FMT_BGRA, \r
 492                                            format_desc_.width,\r
 493                                            format_desc_.height - output_format_.croptop  - output_format_.cropbot);\r
 494 \r
 495                 for(int n = 0; n < 4; ++n)              \r
 496                         in_frame->data[n] += in_frame->linesize[n] * output_format_.croptop;            \r
 497                                                                 \r
 498                 std::shared_ptr<AVFrame> out_frame(avcodec_alloc_frame(), av_free);\r
 499 \r
 500                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, \r
 501                                                                                            c->width,\r
 502                                                                                            c->height));\r
 503 \r
 504                 avpicture_fill(reinterpret_cast<AVPicture*>(out_frame.get()),\r
 505                                            picture_buf_.data(), \r
 506                                            c->pix_fmt, \r
 507                                            c->width, \r
 508                                            c->height);\r
 509 \r
 510                 sws_scale(sws_.get(), \r
 511                                   in_frame->data, \r
 512                                   in_frame->linesize,\r
 513                                   0, \r
 514                                   format_desc_.height - output_format_.cropbot - output_format_.croptop, \r
 515                                   out_frame->data, \r
 516                                   out_frame->linesize);\r
 517 \r
 518                 return out_frame;\r
 519         }\r
 520   \r
 521         std::shared_ptr<AVPacket> encode_video_frame(core::const_frame frame)\r
 522         { \r
 523                 auto c = video_st_->codec;\r
 524                 \r
 525                 auto in_time  = static_cast<double>(in_frame_number_) / format_desc_.fps;\r
 526                 auto out_time = static_cast<double>(out_frame_number_) / (static_cast<double>(c->time_base.den) / static_cast<double>(c->time_base.num));\r
 527                 \r
 528                 in_frame_number_++;\r
 529 \r
 530                 if(out_time - in_time > 0.01)\r
 531                         return nullptr;\r
 532  \r
 533                 auto av_frame = convert_video(frame, c);\r
 534                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 535                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper;\r
 536                 av_frame->pts                           = out_frame_number_++;\r
 537 \r
 538                 int out_size = THROW_ON_ERROR2(avcodec_encode_video(c, video_outbuf_.data(), static_cast<int>(video_outbuf_.size()), av_frame.get()), "[ffmpeg_consumer]");\r
 539                 if(out_size > 0)\r
 540                 {\r
 541                         spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 542                         {\r
 543                                 av_free_packet(p);\r
 544                                 delete p;\r
 545                         });\r
 546                         av_init_packet(pkt.get());\r
 547  \r
 548                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 549                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 550 \r
 551                         if(c->coded_frame->key_frame)\r
 552                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 553 \r
 554                         pkt->stream_index       = video_st_->index;\r
 555                         pkt->data                       = video_outbuf_.data();\r
 556                         pkt->size                       = out_size;\r
 557  \r
 558                         av_dup_packet(pkt.get());\r
 559                         return pkt;\r
 560                 }       \r
 561                 return nullptr;\r
 562         }\r
 563                 \r
 564         byte_vector convert_audio(core::const_frame& frame, AVCodecContext* c)\r
 565         {\r
 566                 if(!swr_)               \r
 567                         swr_.reset(new audio_resampler(c->channels, format_desc_.audio_channels, \r
 568                                                                                    c->sample_rate, format_desc_.audio_sample_rate,\r
 569                                                                                    c->sample_fmt, AV_SAMPLE_FMT_S32));\r
 570                 \r
 571 \r
 572                 auto audio_data = frame.audio_data();\r
 573 \r
 574                 std::vector<int8_t,  tbb::cache_aligned_allocator<int8_t>> audio_resample_buffer;\r
 575                 std::copy(reinterpret_cast<const uint8_t*>(audio_data.data()), \r
 576                                   reinterpret_cast<const uint8_t*>(audio_data.data()) + audio_data.size()*4, \r
 577                                   std::back_inserter(audio_resample_buffer));\r
 578                 \r
 579                 audio_resample_buffer = swr_->resample(std::move(audio_resample_buffer));\r
 580                 \r
 581                 return byte_vector(audio_resample_buffer.begin(), audio_resample_buffer.end());\r
 582         }\r
 583         \r
 584         std::shared_ptr<AVPacket> encode_audio_frame(core::const_frame frame)\r
 585         {                       \r
 586                 auto c = audio_st_->codec;\r
 587 \r
 588                 boost::range::push_back(audio_buf_, convert_audio(frame, c));\r
 589                 \r
 590                 std::size_t frame_size = c->frame_size;\r
 591                 \r
 592                 spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 593                 {\r
 594                         av_free_packet(p);\r
 595                         delete p;\r
 596                 });\r
 597                 av_init_packet(pkt.get());\r
 598 \r
 599                 if(frame_size > 1)\r
 600                 {                       \r
 601                         auto input_audio_size = frame_size * av_get_bytes_per_sample(c->sample_fmt) * c->channels;\r
 602                    \r
 603                         if(audio_buf_.size() < input_audio_size)\r
 604                                 return nullptr;\r
 605                                         \r
 606                         pkt->size = avcodec_encode_audio(c, audio_outbuf_.data(), static_cast<int>(audio_outbuf_.size()), reinterpret_cast<short*>(audio_buf_.data()));\r
 607                         audio_buf_.erase(audio_buf_.begin(), audio_buf_.begin() + input_audio_size);\r
 608                 }\r
 609                 else\r
 610                 {\r
 611                         audio_outbuf_ = std::move(audio_buf_);          \r
 612                         audio_buf_.clear();\r
 613                         pkt->size = static_cast<int>(audio_outbuf_.size());\r
 614                         pkt->data = audio_outbuf_.data();\r
 615                 }\r
 616                 \r
 617                 if(pkt->size == 0)\r
 618                         return nullptr;\r
 619 \r
 620                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 621                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 622 \r
 623                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 624                 pkt->stream_index = audio_st_->index;\r
 625                 pkt->data                 = reinterpret_cast<uint8_t*>(audio_outbuf_.data());\r
 626                 \r
 627                 av_dup_packet(pkt.get());\r
 628                 return pkt;\r
 629         }\r
 630                  \r
 631         void send(core::const_frame& frame)\r
 632         {\r
 633                 encode_executor_.begin_invoke([=]\r
 634                 {               \r
 635                         boost::timer frame_timer;\r
 636 \r
 637                         auto video = encode_video_frame(frame);\r
 638                         auto audio = encode_audio_frame(frame);\r
 639 \r
 640                         graph_->set_value("frame-time", frame_timer.elapsed()*format_desc_.fps*0.5);\r
 641                         \r
 642                         write_executor_.begin_invoke([=]\r
 643                         {\r
 644                                 if(video)\r
 645                                         av_interleaved_write_frame(oc_.get(), video.get());\r
 646                                 if(audio)\r
 647                                         av_interleaved_write_frame(oc_.get(), audio.get());\r
 648                         });\r
 649                 });\r
 650         }\r
 651 };\r
 652 \r
 653 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 654 {\r
 655         const std::wstring                              filename_;\r
 656         const std::vector<option>               options_;\r
 657 \r
 658         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 659 \r
 660 public:\r
 661 \r
 662         ffmpeg_consumer_proxy(const std::wstring& filename, const std::vector<option>& options)\r
 663                 : filename_(filename)\r
 664                 , options_(options)\r
 665         {\r
 666         }\r
 667         \r
 668         virtual void initialize(const core::video_format_desc& format_desc, int)\r
 669         {\r
 670                 consumer_.reset();\r
 671                 consumer_.reset(new ffmpeg_consumer(u8(filename_), format_desc, options_));\r
 672         }\r
 673         \r
 674         virtual bool send(core::const_frame frame) override\r
 675         {\r
 676                 consumer_->send(frame);\r
 677                 return true;\r
 678         }\r
 679         \r
 680         virtual std::wstring print() const override\r
 681         {\r
 682                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 683         }\r
 684 \r
 685         virtual std::wstring name() const override\r
 686         {\r
 687                 return L"file";\r
 688         }\r
 689 \r
 690         virtual boost::property_tree::wptree info() const override\r
 691         {\r
 692                 boost::property_tree::wptree info;\r
 693                 info.add(L"type", L"file");\r
 694                 info.add(L"filename", filename_);\r
 695                 return info;\r
 696         }\r
 697                 \r
 698         virtual bool has_synchronization_clock() const override\r
 699         {\r
 700                 return false;\r
 701         }\r
 702 \r
 703         virtual int buffer_depth() const override\r
 704         {\r
 705                 return 1;\r
 706         }\r
 707 \r
 708         virtual int index() const override\r
 709         {\r
 710                 return 200;\r
 711         }\r
 712 };      \r
 713 spl::shared_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 714 {\r
 715         if(params.size() < 1 || params[0] != L"FILE")\r
 716                 return core::frame_consumer::empty();\r
 717         \r
 718         auto filename   = (params.size() > 1 ? params[1] : L"");\r
 719                         \r
 720         std::vector<option> options;\r
 721         \r
 722         if(params.size() >= 3)\r
 723         {\r
 724                 for(auto opt_it = params.begin()+2; opt_it != params.end();)\r
 725                 {\r
 726                         auto name  = u8(boost::trim_copy(boost::to_lower_copy(*opt_it++))).substr(1);\r
 727                         auto value = u8(boost::trim_copy(boost::to_lower_copy(*opt_it++)));\r
 728                                 \r
 729                         if(value == "h264")\r
 730                                 value = "libx264";\r
 731                         else if(value == "dvcpro")\r
 732                                 value = "dvvideo";\r
 733 \r
 734                         options.push_back(option(name, value));\r
 735                 }\r
 736         }\r
 737                 \r
 738         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, options);\r
 739 }\r
 740 \r
 741 spl::shared_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree)\r
 742 {\r
 743         auto filename   = ptree.get<std::wstring>(L"path");\r
 744         auto codec              = ptree.get(L"vcodec", L"libx264");\r
 745 \r
 746         std::vector<option> options;\r
 747         options.push_back(option("vcodec", u8(codec)));\r
 748         \r
 749         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, options);\r
 750 }\r
 751 \r
 752 }}\r