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 #include "../producer/tbb_avcodec.h"\r
  30 \r
  31 #include <core/frame/frame.h>\r
  32 #include <core/mixer/audio/audio_util.h>\r
  33 #include <core/consumer/frame_consumer.h>\r
  34 #include <core/video_format.h>\r
  35 \r
  36 #include <common/env.h>\r
  37 #include <common/utf.h>\r
  38 #include <common/param.h>\r
  39 #include <common/executor.h>\r
  40 #include <common/diagnostics/graph.h>\r
  41 #include <common/array.h>\r
  42 #include <common/memory.h>\r
  43 \r
  44 #include <boost/algorithm/string.hpp>\r
  45 #include <boost/timer.hpp>\r
  46 #include <boost/property_tree/ptree.hpp>\r
  47 #include <boost/filesystem.hpp>\r
  48 #include <boost/range/algorithm.hpp>\r
  49 #include <boost/range/algorithm_ext.hpp>\r
  50 #include <boost/lexical_cast.hpp>\r
  51 \r
  52 #if defined(_MSC_VER)\r
  53 #pragma warning (push)\r
  54 #pragma warning (disable : 4244)\r
  55 #endif\r
  56 extern "C" \r
  57 {\r
  58         #define __STDC_CONSTANT_MACROS\r
  59         #define __STDC_LIMIT_MACROS\r
  60         #include <libavformat/avformat.h>\r
  61         #include <libswscale/swscale.h>\r
  62         #include <libavutil/opt.h>\r
  63         #include <libavutil/pixdesc.h>\r
  64         #include <libavutil/parseutils.h>\r
  65         #include <libavutil/samplefmt.h>\r
  66 }\r
  67 #if defined(_MSC_VER)\r
  68 #pragma warning (pop)\r
  69 #endif\r
  70 \r
  71 namespace caspar { namespace ffmpeg {\r
  72         \r
  73 int av_opt_set(void *obj, const char *name, const char *val, int search_flags)\r
  74 {\r
  75         AVClass* av_class = *(AVClass**)obj;\r
  76 \r
  77         if((strcmp(name, "pix_fmt") == 0 || strcmp(name, "pixel_format") == 0) && strcmp(av_class->class_name, "AVCodecContext") == 0)\r
  78         {\r
  79                 AVCodecContext* c = (AVCodecContext*)obj;               \r
  80                 auto pix_fmt = av_get_pix_fmt(val);\r
  81                 if(pix_fmt == PIX_FMT_NONE)\r
  82                         return -1;              \r
  83                 c->pix_fmt = pix_fmt;\r
  84                 return 0;\r
  85         }\r
  86         if((strcmp(name, "r") == 0 || strcmp(name, "frame_rate") == 0) && strcmp(av_class->class_name, "AVCodecContext") == 0)\r
  87         {\r
  88                 AVCodecContext* c = (AVCodecContext*)obj;       \r
  89 \r
  90                 if(c->codec_type != AVMEDIA_TYPE_VIDEO)\r
  91                         return -1;\r
  92 \r
  93                 AVRational rate;\r
  94                 int ret = av_parse_video_rate(&rate, val);\r
  95                 if(ret < 0)\r
  96                         return ret;\r
  97 \r
  98                 c->time_base.num = rate.den;\r
  99                 c->time_base.den = rate.num;\r
 100                 return 0;\r
 101         }\r
 102 \r
 103         return ::av_opt_set(obj, name, val, search_flags);\r
 104 }\r
 105 \r
 106 struct option\r
 107 {\r
 108         std::string name;\r
 109         std::string value;\r
 110 \r
 111         option(std::string name, std::string value)\r
 112                 : name(std::move(name))\r
 113                 , value(std::move(value))\r
 114         {\r
 115         }\r
 116 };\r
 117         \r
 118 struct output_format\r
 119 {\r
 120         AVOutputFormat* format;\r
 121         int                             width;\r
 122         int                             height;\r
 123         CodecID                 vcodec;\r
 124         CodecID                 acodec;\r
 125         int                             croptop;\r
 126         int                             cropbot;\r
 127 \r
 128         output_format(const core::video_format_desc& format_desc, const std::string& filename, std::vector<option>& options)\r
 129                 : format(av_guess_format(nullptr, filename.c_str(), nullptr))\r
 130                 , width(format_desc.width)\r
 131                 , height(format_desc.height)\r
 132                 , vcodec(CODEC_ID_NONE)\r
 133                 , acodec(CODEC_ID_NONE)\r
 134                 , croptop(0)\r
 135                 , cropbot(0)\r
 136         {\r
 137                 boost::range::remove_erase_if(options, [&](const option& o)\r
 138                 {\r
 139                         return set_opt(o.name, o.value);\r
 140                 });\r
 141                 \r
 142                 if(vcodec == CODEC_ID_NONE)\r
 143                         vcodec = format->video_codec;\r
 144 \r
 145                 if(acodec == CODEC_ID_NONE)\r
 146                         acodec = format->audio_codec;\r
 147                 \r
 148                 if(vcodec == CODEC_ID_NONE)\r
 149                         vcodec = CODEC_ID_H264;\r
 150                 \r
 151                 if(acodec == CODEC_ID_NONE)\r
 152                         acodec = CODEC_ID_PCM_S16LE;\r
 153         }\r
 154         \r
 155         bool set_opt(const std::string& name, const std::string& value)\r
 156         {\r
 157                 //if(name == "target")\r
 158                 //{ \r
 159                 //      enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;\r
 160                 //      \r
 161                 //      if(name.find("pal-") != std::string::npos)\r
 162                 //              norm = PAL;\r
 163                 //      else if(name.find("ntsc-") != std::string::npos)\r
 164                 //              norm = NTSC;\r
 165 \r
 166                 //      if(norm == UNKNOWN)\r
 167                 //              BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("target"));\r
 168                 //      \r
 169                 //      if (name.find("-dv") != std::string::npos) \r
 170                 //      {\r
 171                 //              set_opt("f", "dv");\r
 172                 //              set_opt("s", norm == PAL ? "720x576" : "720x480");\r
 173                 //              //set_opt("pix_fmt", name.find("-dv50") != std::string::npos ? "yuv422p" : norm == PAL ? "yuv420p" : "yuv411p");\r
 174                 //              //set_opt("ar", "48000");\r
 175                 //              //set_opt("ac", "2");\r
 176                 //      } \r
 177                 //}\r
 178                 if(name == "f")\r
 179                 {\r
 180                         format = av_guess_format(value.c_str(), nullptr, nullptr);\r
 181 \r
 182                         if(format == nullptr)\r
 183                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("f"));\r
 184 \r
 185                         return true;\r
 186                 }\r
 187                 else if(name == "vcodec")\r
 188                 {\r
 189                         auto c = avcodec_find_encoder_by_name(value.c_str());\r
 190                         if(c == nullptr)\r
 191                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("vcodec"));\r
 192 \r
 193                         vcodec = avcodec_find_encoder_by_name(value.c_str())->id;\r
 194                         return true;\r
 195 \r
 196                 }\r
 197                 else if(name == "acodec")\r
 198                 {\r
 199                         auto c = avcodec_find_encoder_by_name(value.c_str());\r
 200                         if(c == nullptr)\r
 201                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("acodec"));\r
 202 \r
 203                         acodec = avcodec_find_encoder_by_name(value.c_str())->id;\r
 204 \r
 205                         return true;\r
 206                 }\r
 207                 else if(name == "s")\r
 208                 {\r
 209                         if(av_parse_video_size(&width, &height, value.c_str()) < 0)\r
 210                                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("s"));\r
 211                         \r
 212                         return true;\r
 213                 }\r
 214                 else if(name == "croptop")\r
 215                 {\r
 216                         croptop = boost::lexical_cast<int>(value);\r
 217 \r
 218                         return true;\r
 219                 }\r
 220                 else if(name == "cropbot")\r
 221                 {\r
 222                         cropbot = boost::lexical_cast<int>(value);\r
 223 \r
 224                         return true;\r
 225                 }\r
 226                 \r
 227                 return false;\r
 228         }\r
 229 };\r
 230 \r
 231 typedef std::vector<uint8_t, tbb::cache_aligned_allocator<uint8_t>>     byte_vector;\r
 232 \r
 233 struct ffmpeg_consumer : boost::noncopyable\r
 234 {               \r
 235         const std::string                                               filename_;\r
 236                 \r
 237         const std::shared_ptr<AVFormatContext>  oc_;\r
 238         const core::video_format_desc                   format_desc_;\r
 239         \r
 240         const spl::shared_ptr<diagnostics::graph>               graph_;\r
 241 \r
 242         executor                                                                encode_executor_;\r
 243         executor                                                                write_executor_;\r
 244         \r
 245         std::shared_ptr<AVStream>                               audio_st_;\r
 246         std::shared_ptr<AVStream>                               video_st_;\r
 247         \r
 248         byte_vector                                                             audio_outbuf_;\r
 249         byte_vector                                                             audio_buf_;\r
 250         byte_vector                                                             video_outbuf_;\r
 251         byte_vector                                                             picture_buf_;\r
 252         std::shared_ptr<audio_resampler>                swr_;\r
 253         std::shared_ptr<SwsContext>                             sws_;\r
 254 \r
 255         int64_t                                                                 in_frame_number_;\r
 256         int64_t                                                                 out_frame_number_;\r
 257 \r
 258         output_format                                                   output_format_;\r
 259         \r
 260 public:\r
 261         ffmpeg_consumer(const std::string& filename, const core::video_format_desc& format_desc, std::vector<option> options)\r
 262                 : filename_(filename)\r
 263                 , video_outbuf_(1920*1080*8)\r
 264                 , audio_outbuf_(10000)\r
 265                 , oc_(avformat_alloc_context(), av_free)\r
 266                 , format_desc_(format_desc)\r
 267                 , encode_executor_(print())\r
 268                 , write_executor_(print() + L"/output")\r
 269                 , in_frame_number_(0)\r
 270                 , out_frame_number_(0)\r
 271                 , output_format_(format_desc, filename, options)\r
 272         {\r
 273                 // TODO: Ask stakeholders about case where file already exists.\r
 274                 boost::filesystem::remove(boost::filesystem::path(env::media_folder() + u16(filename))); // Delete the file if it exists\r
 275 \r
 276                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 277                 graph_->set_text(print());\r
 278                 diagnostics::register_graph(graph_);\r
 279 \r
 280                 encode_executor_.set_capacity(8);\r
 281                 write_executor_.set_capacity(8);\r
 282 \r
 283                 oc_->oformat = output_format_.format;\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                 video_st_ = add_video_stream(options);\r
 289                 audio_st_ = add_audio_stream(options);\r
 290                                 \r
 291                 av_dump_format(oc_.get(), 0, filename_.c_str(), 1);\r
 292                  \r
 293                 // Open the output ffmpeg, if needed.\r
 294                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 295                         THROW_ON_ERROR2(avio_open(&oc_->pb, filename.c_str(), AVIO_FLAG_WRITE), "[ffmpeg_consumer]");\r
 296                                 \r
 297                 THROW_ON_ERROR2(avformat_write_header(oc_.get(), nullptr), "[ffmpeg_consumer]");\r
 298 \r
 299                 if(options.size() > 0)\r
 300                 {\r
 301                         BOOST_FOREACH(auto& option, options)\r
 302                                 CASPAR_LOG(warning) << L"Invalid option: -" << u16(option.name) << L" " << u16(option.value);\r
 303                 }\r
 304 \r
 305                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 306         }\r
 307 \r
 308         ~ffmpeg_consumer()\r
 309         {    \r
 310                 encode_executor_.wait();\r
 311                 write_executor_.wait();\r
 312                 \r
 313                 LOG_ON_ERROR2(av_write_trailer(oc_.get()), "[ffmpeg_consumer]");\r
 314                 \r
 315                 audio_st_.reset();\r
 316                 video_st_.reset();\r
 317                           \r
 318                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 319                         LOG_ON_ERROR2(avio_close(oc_->pb), "[ffmpeg_consumer]"); // Close the output ffmpeg.\r
 320 \r
 321                 CASPAR_LOG(info) << print() << L" Successfully Uninitialized."; \r
 322         }\r
 323                         \r
 324         std::wstring print() const\r
 325         {\r
 326                 return L"ffmpeg[" + u16(filename_) + L"]";\r
 327         }\r
 328 \r
 329         std::shared_ptr<AVStream> add_video_stream(std::vector<option>& options)\r
 330         { \r
 331                 if(output_format_.vcodec == CODEC_ID_NONE)\r
 332                         return nullptr;\r
 333 \r
 334                 auto st = av_new_stream(oc_.get(), 0);\r
 335                 if (!st)                \r
 336                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate video-stream.") << boost::errinfo_api_function("av_new_stream"));              \r
 337 \r
 338                 auto encoder = avcodec_find_encoder(output_format_.vcodec);\r
 339                 if (!encoder)\r
 340                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Codec not found."));\r
 341 \r
 342                 auto c = st->codec;\r
 343 \r
 344                 avcodec_get_context_defaults3(c, encoder);\r
 345                                 \r
 346                 c->codec_id                     = output_format_.vcodec;\r
 347                 c->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 348                 c->width                        = output_format_.width;\r
 349                 c->height                       = output_format_.height - output_format_.croptop - output_format_.cropbot;\r
 350                 c->time_base.den        = format_desc_.time_scale;\r
 351                 c->time_base.num        = format_desc_.duration;\r
 352                 c->gop_size                     = 25;\r
 353                 c->flags                   |= format_desc_.field_mode == core::field_mode::progressive ? 0 : (CODEC_FLAG_INTERLACED_ME | CODEC_FLAG_INTERLACED_DCT);\r
 354                 if(c->pix_fmt == PIX_FMT_NONE)\r
 355                         c->pix_fmt = PIX_FMT_YUV420P;\r
 356 \r
 357                 if(c->codec_id == CODEC_ID_PRORES)\r
 358                 {                       \r
 359                         c->bit_rate     = c->width < 1280 ? 63*1000000 : 220*1000000;\r
 360                         c->pix_fmt      = PIX_FMT_YUV422P10;\r
 361                 }\r
 362                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 363                 {\r
 364                         if(c->width < 1280 || c->height < 720)\r
 365                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Unsupported video dimensions."));\r
 366 \r
 367                         c->bit_rate     = 220*1000000;\r
 368                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 369                 }\r
 370                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 371                 {\r
 372                         c->width = c->height == 1280 ? 960  : c->width;\r
 373                         \r
 374                         if(format_desc_.format == core::video_format::ntsc)\r
 375                                 c->pix_fmt = PIX_FMT_YUV411P;\r
 376                         else if(format_desc_.format == core::video_format::pal)\r
 377                                 c->pix_fmt = PIX_FMT_YUV420P;\r
 378                         else // dv50\r
 379                                 c->pix_fmt = PIX_FMT_YUV422P;\r
 380                         \r
 381                         if(format_desc_.duration == 1001)                       \r
 382                                 c->width = c->height == 1080 ? 1280 : c->width;                 \r
 383                         else\r
 384                                 c->width = c->height == 1080 ? 1440 : c->width;                 \r
 385                 }\r
 386                 else if(c->codec_id == CODEC_ID_H264)\r
 387                 {                          \r
 388                         c->pix_fmt = PIX_FMT_YUV420P;    \r
 389                         if(options.empty())\r
 390                         {\r
 391                                 av_opt_set(c->priv_data, "preset", "ultrafast", 0);\r
 392                                 av_opt_set(c->priv_data, "tune",   "fastdecode",   0);\r
 393                                 av_opt_set(c->priv_data, "crf",    "5",     0);\r
 394                         }\r
 395                 }\r
 396                 else if(c->codec_id == CODEC_ID_QTRLE)\r
 397                 {\r
 398                         c->pix_fmt = PIX_FMT_ARGB;\r
 399                 }\r
 400                                 \r
 401                 c->max_b_frames = 0; // b-frames not supported.\r
 402                                 \r
 403                 boost::range::remove_erase_if(options, [&](const option& o)\r
 404                 {\r
 405                         return o.name.at(0) != 'a' && ffmpeg::av_opt_set(c, o.name.c_str(), o.value.c_str(), AV_OPT_SEARCH_CHILDREN) > -1;\r
 406                 });\r
 407                                 \r
 408                 if(output_format_.format->flags & AVFMT_GLOBALHEADER)\r
 409                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 410                 \r
 411                 //c->thread_count = boost::thread::hardware_concurrency();\r
 412                 THROW_ON_ERROR2(tbb_avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 413 \r
 414                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 415                 {\r
 416                         LOG_ON_ERROR2(tbb_avcodec_close(st->codec), "[ffmpeg_consumer]");\r
 417                         av_freep(&st->codec);\r
 418                         av_freep(&st);\r
 419                 });\r
 420         }\r
 421                 \r
 422         std::shared_ptr<AVStream> add_audio_stream(std::vector<option>& options)\r
 423         {\r
 424                 if(output_format_.acodec == CODEC_ID_NONE)\r
 425                         return nullptr;\r
 426 \r
 427                 auto st = av_new_stream(oc_.get(), 1);\r
 428                 if(!st)\r
 429                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate audio-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 430                 \r
 431                 auto encoder = avcodec_find_encoder(output_format_.acodec);\r
 432                 if (!encoder)\r
 433                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 434                 \r
 435                 auto c = st->codec;\r
 436 \r
 437                 avcodec_get_context_defaults3(c, encoder);\r
 438 \r
 439                 c->codec_id                     = output_format_.acodec;\r
 440                 c->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 441                 c->sample_rate          = 48000;\r
 442                 c->channels                     = 2;\r
 443                 c->sample_fmt           = AV_SAMPLE_FMT_S16;\r
 444 \r
 445                 if(output_format_.vcodec == CODEC_ID_FLV1)              \r
 446                         c->sample_rate  = 44100;                \r
 447 \r
 448                 if(output_format_.format->flags & AVFMT_GLOBALHEADER)\r
 449                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 450                                 \r
 451                 boost::range::remove_erase_if(options, [&](const option& o)\r
 452                 {\r
 453                         return ffmpeg::av_opt_set(c, o.name.c_str(), o.value.c_str(), AV_OPT_SEARCH_CHILDREN) > -1;\r
 454                 });\r
 455 \r
 456                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 457 \r
 458                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 459                 {\r
 460                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");;\r
 461                         av_freep(&st->codec);\r
 462                         av_freep(&st);\r
 463                 });\r
 464         }\r
 465         \r
 466         std::shared_ptr<AVFrame> convert_video(core::const_frame frame, AVCodecContext* c)\r
 467         {\r
 468                 if(!sws_) \r
 469                 {\r
 470                         sws_.reset(sws_getContext(format_desc_.width, \r
 471                                                                           format_desc_.height - output_format_.croptop  - output_format_.cropbot, \r
 472                                                                           PIX_FMT_BGRA,\r
 473                                                                           c->width,\r
 474                                                                           c->height, \r
 475                                                                           c->pix_fmt, \r
 476                                                                           SWS_BICUBIC, nullptr, nullptr, nullptr), \r
 477                                                 sws_freeContext);\r
 478                         if (sws_ == nullptr) \r
 479                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 480                 }\r
 481 \r
 482                 std::shared_ptr<AVFrame> in_frame(avcodec_alloc_frame(), av_free);\r
 483 \r
 484                 avpicture_fill(reinterpret_cast<AVPicture*>(in_frame.get()), \r
 485                                            const_cast<uint8_t*>(frame.image_data().begin()),\r
 486                                            PIX_FMT_BGRA, \r
 487                                            format_desc_.width,\r
 488                                            format_desc_.height - output_format_.croptop  - output_format_.cropbot);\r
 489 \r
 490                 for(int n = 0; n < 4; ++n)              \r
 491                         in_frame->data[n] += in_frame->linesize[n] * output_format_.croptop;            \r
 492                                                                 \r
 493                 std::shared_ptr<AVFrame> out_frame(avcodec_alloc_frame(), av_free);\r
 494 \r
 495                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, \r
 496                                                                                            c->width,\r
 497                                                                                            c->height));\r
 498 \r
 499                 avpicture_fill(reinterpret_cast<AVPicture*>(out_frame.get()),\r
 500                                            picture_buf_.data(), \r
 501                                            c->pix_fmt, \r
 502                                            c->width, \r
 503                                            c->height);\r
 504 \r
 505                 sws_scale(sws_.get(), \r
 506                                   in_frame->data, \r
 507                                   in_frame->linesize,\r
 508                                   0, \r
 509                                   format_desc_.height - output_format_.cropbot - output_format_.croptop, \r
 510                                   out_frame->data, \r
 511                                   out_frame->linesize);\r
 512 \r
 513                 return out_frame;\r
 514         }\r
 515   \r
 516         std::shared_ptr<AVPacket> encode_video_frame(core::const_frame frame)\r
 517         { \r
 518                 auto c = video_st_->codec;\r
 519                 \r
 520                 auto in_time  = static_cast<double>(in_frame_number_) / format_desc_.fps;\r
 521                 auto out_time = static_cast<double>(out_frame_number_) / (static_cast<double>(c->time_base.den) / static_cast<double>(c->time_base.num));\r
 522                 \r
 523                 in_frame_number_++;\r
 524 \r
 525                 if(out_time - in_time > 0.01)\r
 526                         return nullptr;\r
 527  \r
 528                 auto av_frame = convert_video(frame, c);\r
 529                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 530                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper;\r
 531                 av_frame->pts                           = out_frame_number_++;\r
 532 \r
 533                 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
 534                 if(out_size > 0)\r
 535                 {\r
 536                         spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 537                         {\r
 538                                 av_free_packet(p);\r
 539                                 delete p;\r
 540                         });\r
 541                         av_init_packet(pkt.get());\r
 542  \r
 543                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 544                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 545 \r
 546                         if(c->coded_frame->key_frame)\r
 547                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 548 \r
 549                         pkt->stream_index       = video_st_->index;\r
 550                         pkt->data                       = video_outbuf_.data();\r
 551                         pkt->size                       = out_size;\r
 552  \r
 553                         av_dup_packet(pkt.get());\r
 554                         return pkt;\r
 555                 }       \r
 556                 return nullptr;\r
 557         }\r
 558                 \r
 559         byte_vector convert_audio(core::const_frame& frame, AVCodecContext* c)\r
 560         {\r
 561                 if(!swr_)               \r
 562                         swr_.reset(new audio_resampler(c->channels, format_desc_.audio_channels, \r
 563                                                                                    c->sample_rate, format_desc_.audio_sample_rate,\r
 564                                                                                    c->sample_fmt, AV_SAMPLE_FMT_S32));\r
 565                 \r
 566 \r
 567                 auto audio_data = frame.audio_data();\r
 568 \r
 569                 std::vector<int8_t,  tbb::cache_aligned_allocator<int8_t>> audio_resample_buffer;\r
 570                 std::copy(reinterpret_cast<const uint8_t*>(audio_data.data()), \r
 571                                   reinterpret_cast<const uint8_t*>(audio_data.data()) + audio_data.size()*4, \r
 572                                   std::back_inserter(audio_resample_buffer));\r
 573                 \r
 574                 audio_resample_buffer = swr_->resample(std::move(audio_resample_buffer));\r
 575                 \r
 576                 return byte_vector(audio_resample_buffer.begin(), audio_resample_buffer.end());\r
 577         }\r
 578         \r
 579         std::shared_ptr<AVPacket> encode_audio_frame(core::const_frame frame)\r
 580         {                       \r
 581                 auto c = audio_st_->codec;\r
 582 \r
 583                 boost::range::push_back(audio_buf_, convert_audio(frame, c));\r
 584                 \r
 585                 std::size_t frame_size = c->frame_size;\r
 586                 \r
 587                 spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 588                 {\r
 589                         av_free_packet(p);\r
 590                         delete p;\r
 591                 });\r
 592                 av_init_packet(pkt.get());\r
 593 \r
 594                 if(frame_size > 1)\r
 595                 {                       \r
 596                         auto input_audio_size = frame_size * av_get_bytes_per_sample(c->sample_fmt) * c->channels;\r
 597                    \r
 598                         if(audio_buf_.size() < input_audio_size)\r
 599                                 return nullptr;\r
 600                                         \r
 601                         pkt->size = avcodec_encode_audio(c, audio_outbuf_.data(), static_cast<int>(audio_outbuf_.size()), reinterpret_cast<short*>(audio_buf_.data()));\r
 602                         audio_buf_.erase(audio_buf_.begin(), audio_buf_.begin() + input_audio_size);\r
 603                 }\r
 604                 else\r
 605                 {\r
 606                         audio_outbuf_ = std::move(audio_buf_);          \r
 607                         audio_buf_.clear();\r
 608                         pkt->size = static_cast<int>(audio_outbuf_.size());\r
 609                         pkt->data = audio_outbuf_.data();\r
 610                 }\r
 611                 \r
 612                 if(pkt->size == 0)\r
 613                         return nullptr;\r
 614 \r
 615                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 616                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 617 \r
 618                 pkt->flags               |= AV_PKT_FLAG_KEY;\r
 619                 pkt->stream_index = audio_st_->index;\r
 620                 pkt->data                 = reinterpret_cast<uint8_t*>(audio_outbuf_.data());\r
 621                 \r
 622                 av_dup_packet(pkt.get());\r
 623                 return pkt;\r
 624         }\r
 625                  \r
 626         void send(core::const_frame& frame)\r
 627         {\r
 628                 encode_executor_.begin_invoke([=]\r
 629                 {               \r
 630                         boost::timer frame_timer;\r
 631 \r
 632                         auto video = encode_video_frame(frame);\r
 633                         auto audio = encode_audio_frame(frame);\r
 634 \r
 635                         graph_->set_value("frame-time", frame_timer.elapsed()*format_desc_.fps*0.5);\r
 636                         \r
 637                         write_executor_.begin_invoke([=]\r
 638                         {\r
 639                                 if(video)\r
 640                                         av_interleaved_write_frame(oc_.get(), video.get());\r
 641                                 if(audio)\r
 642                                         av_interleaved_write_frame(oc_.get(), audio.get());\r
 643                         });\r
 644                 });\r
 645         }\r
 646 };\r
 647 \r
 648 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 649 {\r
 650         const std::wstring                              filename_;\r
 651         const std::vector<option>               options_;\r
 652 \r
 653         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 654 \r
 655 public:\r
 656 \r
 657         ffmpeg_consumer_proxy(const std::wstring& filename, const std::vector<option>& options)\r
 658                 : filename_(filename)\r
 659                 , options_(options)\r
 660         {\r
 661         }\r
 662         \r
 663         virtual void initialize(const core::video_format_desc& format_desc, int)\r
 664         {\r
 665                 consumer_.reset();\r
 666                 consumer_.reset(new ffmpeg_consumer(u8(filename_), format_desc, options_));\r
 667         }\r
 668         \r
 669         bool send(core::const_frame frame) override\r
 670         {\r
 671                 consumer_->send(frame);\r
 672                 return true;\r
 673         }\r
 674         \r
 675         std::wstring print() const override\r
 676         {\r
 677                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 678         }\r
 679 \r
 680         std::wstring name() const override\r
 681         {\r
 682                 return L"file";\r
 683         }\r
 684 \r
 685         boost::property_tree::wptree info() const override\r
 686         {\r
 687                 boost::property_tree::wptree info;\r
 688                 info.add(L"type", L"file");\r
 689                 info.add(L"filename", filename_);\r
 690                 return info;\r
 691         }\r
 692                 \r
 693         bool has_synchronization_clock() const override\r
 694         {\r
 695                 return false;\r
 696         }\r
 697 \r
 698         int buffer_depth() const override\r
 699         {\r
 700                 return 1;\r
 701         }\r
 702 \r
 703         int index() const override\r
 704         {\r
 705                 return 200;\r
 706         }\r
 707 };      \r
 708 spl::shared_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 709 {\r
 710         if(params.size() < 1 || params[0] != L"FILE")\r
 711                 return core::frame_consumer::empty();\r
 712         \r
 713         auto filename   = (params.size() > 1 ? params[1] : L"");\r
 714                         \r
 715         std::vector<option> options;\r
 716         \r
 717         if(params.size() >= 3)\r
 718         {\r
 719                 for(auto opt_it = params.begin()+2; opt_it != params.end();)\r
 720                 {\r
 721                         auto name  = u8(boost::trim_copy(boost::to_lower_copy(*opt_it++))).substr(1);\r
 722                         auto value = u8(boost::trim_copy(boost::to_lower_copy(*opt_it++)));\r
 723                                 \r
 724                         if(value == "h264")\r
 725                                 value = "libx264";\r
 726                         else if(value == "dvcpro")\r
 727                                 value = "dvvideo";\r
 728 \r
 729                         options.push_back(option(name, value));\r
 730                 }\r
 731         }\r
 732                 \r
 733         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, options);\r
 734 }\r
 735 \r
 736 spl::shared_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree)\r
 737 {\r
 738         auto filename   = ptree.get<std::wstring>(L"path");\r
 739         auto codec              = ptree.get(L"vcodec", L"libx264");\r
 740 \r
 741         std::vector<option> options;\r
 742         options.push_back(option("vcodec", u8(codec)));\r
 743         \r
 744         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, options);\r
 745 }\r
 746 \r
 747 }}\r