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 <core/frame/frame.h>\r
  29 #include <core/mixer/audio/audio_util.h>\r
  30 #include <core/consumer/frame_consumer.h>\r
  31 #include <core/video_format.h>\r
  32 \r
  33 #include <common/env.h>\r
  34 #include <common/utf.h>\r
  35 #include <common/param.h>\r
  36 #include <common/executor.h>\r
  37 #include <common/diagnostics/graph.h>\r
  38 #include <common/array.h>\r
  39 #include <common/memory.h>\r
  40 \r
  41 #include <boost/algorithm/string.hpp>\r
  42 #include <boost/timer.hpp>\r
  43 #include <boost/property_tree/ptree.hpp>\r
  44 #include <boost/filesystem.hpp>\r
  45 \r
  46 #if defined(_MSC_VER)\r
  47 #pragma warning (push)\r
  48 #pragma warning (disable : 4244)\r
  49 #endif\r
  50 extern "C" \r
  51 {\r
  52         #define __STDC_CONSTANT_MACROS\r
  53         #define __STDC_LIMIT_MACROS\r
  54         #include <libavformat/avformat.h>\r
  55         #include <libswscale/swscale.h>\r
  56         #include <libavutil/opt.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 option\r
  65 {\r
  66         std::string name;\r
  67         std::string value;\r
  68 \r
  69         option(std::string name, std::string value)\r
  70                 : name(std::move(name))\r
  71                 , value(std::move(value))\r
  72         {\r
  73         }\r
  74 };\r
  75         \r
  76 void set_format(AVOutputFormat*& format, const std::string& value)\r
  77 {\r
  78         format = av_guess_format(value.c_str(), nullptr, nullptr);\r
  79 \r
  80         if(format == nullptr)\r
  81                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("f"));        \r
  82 }\r
  83 \r
  84 bool parse_format(AVOutputFormat*& format, std::vector<option>& options)\r
  85 {       \r
  86         auto format_it = std::find_if(options.begin(), options.end(), [](const option& o)\r
  87         {\r
  88                 return o.name == "f" || o.name == "format";\r
  89         });\r
  90 \r
  91         if(format_it == options.end())\r
  92                 return false;\r
  93 \r
  94         set_format(format, format_it->value);\r
  95 \r
  96         options.erase(format_it);\r
  97 \r
  98         return true;\r
  99 }\r
 100 \r
 101 void set_vcodec(CodecID& vcodec, const std::string& value)\r
 102 {       \r
 103         vcodec = avcodec_find_encoder_by_name(value.c_str())->id;\r
 104         if(vcodec == CODEC_ID_NONE)\r
 105                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("vcodec"));\r
 106 }\r
 107 \r
 108 bool parse_vcodec(CodecID& vcodec, std::vector<option>& options)\r
 109 {\r
 110         auto vcodec_it = std::find_if(options.begin(), options.end(), [](const option& o)\r
 111         {\r
 112                 return o.name == "vcodec";\r
 113         });\r
 114 \r
 115         if(vcodec_it == options.end())\r
 116                 return false;\r
 117         \r
 118         set_vcodec(vcodec, vcodec_it->value);\r
 119 \r
 120         options.erase(vcodec_it);\r
 121 \r
 122         return true;\r
 123 }\r
 124 \r
 125 void set_pix_fmt(AVCodecContext* vcodec, const std::string& value)\r
 126 {\r
 127         auto pix_fmt = av_get_pix_fmt(value.c_str());\r
 128         if(pix_fmt == PIX_FMT_NONE)\r
 129                 BOOST_THROW_EXCEPTION(invalid_argument() << arg_name_info("pix_fmt"));\r
 130 \r
 131         vcodec->pix_fmt = pix_fmt;\r
 132 }\r
 133 \r
 134 bool parse_pix_fmt(AVCodecContext* vcodec, std::vector<option>& options)\r
 135 {\r
 136         auto pix_fmt_it = std::find_if(options.begin(), options.end(), [](const option& o)\r
 137         {\r
 138                 return o.name == "pix_fmt" || o.name == "pixel_format";\r
 139         });\r
 140         \r
 141         if(pix_fmt_it == options.end())\r
 142                 return false;\r
 143 \r
 144         set_pix_fmt(vcodec, pix_fmt_it->value);\r
 145         \r
 146         options.erase(pix_fmt_it);\r
 147 \r
 148         return true;\r
 149 }\r
 150 \r
 151 struct ffmpeg_consumer : boost::noncopyable\r
 152 {               \r
 153         const std::string                                               filename_;\r
 154                 \r
 155         const std::shared_ptr<AVFormatContext>  oc_;\r
 156         const core::video_format_desc                   format_desc_;\r
 157         \r
 158         const spl::shared_ptr<diagnostics::graph>               graph_;\r
 159         boost::timer                                                    frame_timer_;\r
 160         boost::timer                                                    write_timer_;\r
 161 \r
 162         executor                                                                executor_;\r
 163         executor                                                                file_write_executor_;\r
 164 \r
 165         // Audio\r
 166         std::shared_ptr<AVStream>                               audio_st_;\r
 167         \r
 168         // Video\r
 169         std::shared_ptr<AVStream>                               video_st_;\r
 170 \r
 171         std::vector<uint8_t>                                    video_outbuf_;\r
 172         std::vector<uint8_t>                                    picture_buf_;\r
 173         std::shared_ptr<SwsContext>                             sws_;\r
 174 \r
 175         int64_t                                                                 frame_number_;\r
 176         \r
 177 public:\r
 178         ffmpeg_consumer(const std::string& filename, const core::video_format_desc& format_desc, std::vector<option> options)\r
 179                 : filename_(filename)\r
 180                 , video_outbuf_(1920*1080*8)\r
 181                 , oc_(avformat_alloc_context(), av_free)\r
 182                 , format_desc_(format_desc)\r
 183                 , executor_(print())\r
 184                 , file_write_executor_(print() + L"/output")\r
 185                 , frame_number_(0)\r
 186         {\r
 187                 // TODO: Ask stakeholders about case where file already exists.\r
 188                 boost::filesystem::remove(boost::filesystem::path(env::media_folder() + u16(filename))); // Delete the file if it exists\r
 189 \r
 190                 graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
 191                 graph_->set_color("write-time", diagnostics::color(0.5f, 0.5f, 0.1f));\r
 192                 graph_->set_text(print());\r
 193                 diagnostics::register_graph(graph_);\r
 194 \r
 195                 executor_.set_capacity(8);\r
 196                 file_write_executor_.set_capacity(8);\r
 197 \r
 198                 oc_->oformat = av_guess_format(nullptr, filename_.c_str(), nullptr);\r
 199                 if (!oc_->oformat)\r
 200                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not find suitable output format."));\r
 201                 \r
 202                 parse_format(oc_->oformat, options);\r
 203 \r
 204                 auto vcodec = oc_->oformat->video_codec;\r
 205                 parse_vcodec(vcodec, options);\r
 206                 \r
 207                 THROW_ON_ERROR2(av_set_parameters(oc_.get(), nullptr), "[ffmpeg_consumer]");\r
 208 \r
 209                 strcpy_s(oc_->filename, filename_.c_str());\r
 210                 \r
 211                 //  Add the audio and video streams using the default format codecs     and initialize the codecs .\r
 212                 video_st_ = add_video_stream(vcodec, options);\r
 213                 audio_st_ = add_audio_stream();\r
 214                                 \r
 215                 dump_format(oc_.get(), 0, filename_.c_str(), 1);\r
 216                  \r
 217                 // Open the output ffmpeg, if needed.\r
 218                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 219                         THROW_ON_ERROR2(avio_open(&oc_->pb, filename_.c_str(), URL_WRONLY), "[ffmpeg_consumer]");\r
 220                                 \r
 221                 THROW_ON_ERROR2(av_write_header(oc_.get()), "[ffmpeg_consumer]");\r
 222 \r
 223                 CASPAR_LOG(info) << print() << L" Successfully Initialized.";   \r
 224         }\r
 225 \r
 226         ~ffmpeg_consumer()\r
 227         {    \r
 228                 executor_.wait();\r
 229                 file_write_executor_.wait();\r
 230                 \r
 231                 LOG_ON_ERROR2(av_write_trailer(oc_.get()), "[ffmpeg_consumer]");\r
 232                 \r
 233                 audio_st_.reset();\r
 234                 video_st_.reset();\r
 235                           \r
 236                 if (!(oc_->oformat->flags & AVFMT_NOFILE)) \r
 237                         LOG_ON_ERROR2(avio_close(oc_->pb), "[ffmpeg_consumer]"); // Close the output ffmpeg.\r
 238 \r
 239                 CASPAR_LOG(info) << print() << L" Successfully Uninitialized."; \r
 240         }\r
 241                         \r
 242         std::wstring print() const\r
 243         {\r
 244                 return L"ffmpeg[" + u16(filename_) + L"]";\r
 245         }\r
 246 \r
 247         std::shared_ptr<AVStream> add_video_stream(CodecID vcodec, std::vector<option>& options)\r
 248         { \r
 249                 auto st = av_new_stream(oc_.get(), 0);\r
 250                 if (!st)                \r
 251                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate video-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 252 \r
 253                 auto encoder = avcodec_find_encoder(vcodec);\r
 254                 if (!encoder)\r
 255                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 256 \r
 257                 auto c = st->codec;\r
 258 \r
 259                 avcodec_get_context_defaults3(c, encoder);\r
 260                                 \r
 261                 c->codec_id                     = vcodec;\r
 262                 c->codec_type           = AVMEDIA_TYPE_VIDEO;\r
 263                 c->width                        = format_desc_.width;\r
 264                 c->height                       = format_desc_.height;\r
 265                 c->time_base.den        = format_desc_.time_scale;\r
 266                 c->time_base.num        = format_desc_.duration;\r
 267                 c->gop_size                     = 25;\r
 268                 c->flags                   |= format_desc_.field_mode == core::field_mode::progressive ? 0 : (CODEC_FLAG_INTERLACED_ME | CODEC_FLAG_INTERLACED_DCT);\r
 269 \r
 270                 if(c->codec_id == CODEC_ID_PRORES)\r
 271                 {                       \r
 272                         c->bit_rate     = format_desc_.width < 1280 ? 63*1000000 : 220*1000000;\r
 273                         c->pix_fmt      = PIX_FMT_YUV422P10;\r
 274                 }\r
 275                 else if(c->codec_id == CODEC_ID_DNXHD)\r
 276                 {\r
 277                         if(format_desc_.width < 1280 || format_desc_.height < 720)\r
 278                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("unsupported dimension"));\r
 279 \r
 280                         c->bit_rate     = 220*1000000;\r
 281                         c->pix_fmt      = PIX_FMT_YUV422P;\r
 282                 }\r
 283                 else if(c->codec_id == CODEC_ID_DVVIDEO)\r
 284                 {\r
 285                         c->bit_rate     = format_desc_.width < 1280 ? 50*1000000 : 100*1000000;\r
 286                         c->width = format_desc_.height == 1280 ? 960  : c->width;\r
 287                         \r
 288                         if(format_desc_.format == core::video_format::ntsc)\r
 289                                 c->pix_fmt = PIX_FMT_YUV411P;\r
 290                         else if(format_desc_.format == core::video_format::pal)\r
 291                                 c->pix_fmt = PIX_FMT_YUV420P;\r
 292                         \r
 293                         if(c->bit_rate >= 50*1000000) // dv50\r
 294                                 c->pix_fmt = PIX_FMT_YUV422P;\r
 295                         \r
 296                         if(format_desc_.duration == 1001)                       \r
 297                                 c->width = format_desc_.height == 1080 ? 1280 : c->width;                       \r
 298                         else\r
 299                                 c->width = format_desc_.height == 1080 ? 1440 : c->width;                       \r
 300                 }\r
 301                 else if(c->codec_id == CODEC_ID_H264)\r
 302                 {                          \r
 303                         c->pix_fmt = PIX_FMT_YUV420P;    \r
 304                         if(options.empty())\r
 305                         {\r
 306                                 av_opt_set(c->priv_data, "preset", "ultrafast", 0);\r
 307                                 av_opt_set(c->priv_data, "tune",   "fastdecode",   0);\r
 308                                 av_opt_set(c->priv_data, "crf",    "5",     0);\r
 309                         }\r
 310                 }\r
 311                 else if(c->codec_id == CODEC_ID_QTRLE)\r
 312                 {\r
 313                         c->pix_fmt = PIX_FMT_ARGB;\r
 314                 }\r
 315                 else\r
 316                 {\r
 317                         BOOST_THROW_EXCEPTION(invalid_argument() << msg_info("Unsupported output parameters."));\r
 318                 }\r
 319 \r
 320                 parse_pix_fmt(c, options);\r
 321                 \r
 322                 c->max_b_frames = 0; // b-frames not supported.\r
 323 \r
 324                 BOOST_FOREACH(auto& option, options)\r
 325                         THROW_ON_ERROR2(av_opt_set(c, option.name.c_str(), option.value.c_str(), AV_OPT_SEARCH_CHILDREN), "[ffmpeg_consumer]");\r
 326                                 \r
 327                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 328                         c->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 329                 \r
 330                 c->thread_count = boost::thread::hardware_concurrency();\r
 331                 THROW_ON_ERROR2(avcodec_open(c, encoder), "[ffmpeg_consumer]");\r
 332 \r
 333                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 334                 {\r
 335                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");\r
 336                         av_freep(&st->codec);\r
 337                         av_freep(&st);\r
 338                 });\r
 339         }\r
 340         \r
 341         std::shared_ptr<AVStream> add_audio_stream()\r
 342         {\r
 343                 auto st = av_new_stream(oc_.get(), 1);\r
 344                 if(!st)\r
 345                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Could not allocate audio-stream") << boost::errinfo_api_function("av_new_stream"));               \r
 346 \r
 347                 st->codec->codec_id                     = CODEC_ID_PCM_S16LE;\r
 348                 st->codec->codec_type           = AVMEDIA_TYPE_AUDIO;\r
 349                 st->codec->sample_rate          = 48000;\r
 350                 st->codec->channels                     = 2;\r
 351                 st->codec->sample_fmt           = SAMPLE_FMT_S16;\r
 352                 \r
 353                 if(oc_->oformat->flags & AVFMT_GLOBALHEADER)\r
 354                         st->codec->flags |= CODEC_FLAG_GLOBAL_HEADER;\r
 355                 \r
 356                 auto codec = avcodec_find_encoder(st->codec->codec_id);\r
 357                 if (!codec)\r
 358                         BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("codec not found"));\r
 359 \r
 360                 THROW_ON_ERROR2(avcodec_open(st->codec, codec), "[ffmpeg_consumer]");\r
 361 \r
 362                 return std::shared_ptr<AVStream>(st, [](AVStream* st)\r
 363                 {\r
 364                         LOG_ON_ERROR2(avcodec_close(st->codec), "[ffmpeg_consumer]");;\r
 365                         av_freep(&st->codec);\r
 366                         av_freep(&st);\r
 367                 });\r
 368         }\r
 369 \r
 370         std::shared_ptr<AVFrame> convert_video_frame(core::const_frame frame, AVCodecContext* c)\r
 371         {\r
 372                 if(!sws_) \r
 373                 {\r
 374                         sws_.reset(sws_getContext(static_cast<int>(format_desc_.width), static_cast<int>(format_desc_.height), PIX_FMT_BGRA, c->width, c->height, c->pix_fmt, SWS_BICUBIC, nullptr, nullptr, nullptr), sws_freeContext);\r
 375                         if (sws_ == nullptr) \r
 376                                 BOOST_THROW_EXCEPTION(caspar_exception() << msg_info("Cannot initialize the conversion context"));\r
 377                 }\r
 378 \r
 379                 std::shared_ptr<AVFrame> av_frame(avcodec_alloc_frame(), av_free);\r
 380                 avpicture_fill(reinterpret_cast<AVPicture*>(av_frame.get()), const_cast<uint8_t*>(frame.image_data().begin()), PIX_FMT_BGRA, static_cast<int>(format_desc_.width), static_cast<int>(format_desc_.height));\r
 381                                 \r
 382                 std::shared_ptr<AVFrame> local_av_frame(avcodec_alloc_frame(), av_free);\r
 383                 picture_buf_.resize(avpicture_get_size(c->pix_fmt, static_cast<int>(format_desc_.width), static_cast<int>(format_desc_.height)));\r
 384                 avpicture_fill(reinterpret_cast<AVPicture*>(local_av_frame.get()), picture_buf_.data(), c->pix_fmt, static_cast<int>(format_desc_.width), static_cast<int>(format_desc_.height));\r
 385 \r
 386                 sws_scale(sws_.get(), av_frame->data, av_frame->linesize, 0, c->height, local_av_frame->data, local_av_frame->linesize);\r
 387 \r
 388                 return local_av_frame;\r
 389         }\r
 390   \r
 391         std::shared_ptr<AVPacket> encode_video_frame(core::const_frame frame)\r
 392         { \r
 393                 auto c = video_st_->codec;\r
 394  \r
 395                 auto av_frame = convert_video_frame(frame, c);\r
 396                 av_frame->interlaced_frame      = format_desc_.field_mode != core::field_mode::progressive;\r
 397                 av_frame->top_field_first       = format_desc_.field_mode == core::field_mode::upper;\r
 398                 av_frame->pts                           = frame_number_++;\r
 399 \r
 400                 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
 401                 if(out_size > 0)\r
 402                 {\r
 403                         spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 404                         {\r
 405                                 av_free_packet(p);\r
 406                                 delete p;\r
 407                         });\r
 408                         av_init_packet(pkt.get());\r
 409  \r
 410                         if (c->coded_frame->pts != AV_NOPTS_VALUE)\r
 411                                 pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, video_st_->time_base);\r
 412 \r
 413                         if(c->coded_frame->key_frame)\r
 414                                 pkt->flags |= AV_PKT_FLAG_KEY;\r
 415 \r
 416                         pkt->stream_index       = video_st_->index;\r
 417                         pkt->data                       = video_outbuf_.data();\r
 418                         pkt->size                       = out_size;\r
 419  \r
 420                         av_dup_packet(pkt.get());\r
 421                         return pkt;\r
 422                 }       \r
 423                 return nullptr;\r
 424         }\r
 425                 \r
 426         std::shared_ptr<AVPacket> encode_audio_frame(core::const_frame frame)\r
 427         {                       \r
 428                 auto c = audio_st_->codec;\r
 429 \r
 430                 auto audio_data = core::audio_32_to_16(frame.audio_data());\r
 431                 \r
 432                 spl::shared_ptr<AVPacket> pkt(new AVPacket, [](AVPacket* p)\r
 433                 {\r
 434                         av_free_packet(p);\r
 435                         delete p;\r
 436                 });\r
 437                 av_init_packet(pkt.get());\r
 438                 \r
 439                 if (c->coded_frame && c->coded_frame->pts != AV_NOPTS_VALUE)\r
 440                         pkt->pts = av_rescale_q(c->coded_frame->pts, c->time_base, audio_st_->time_base);\r
 441 \r
 442                 pkt->flags                      |= AV_PKT_FLAG_KEY;\r
 443                 pkt->stream_index       = audio_st_->index;\r
 444                 pkt->size                       = static_cast<int>(audio_data.size()*2);\r
 445                 pkt->data                       = reinterpret_cast<uint8_t*>(audio_data.data());\r
 446                 \r
 447                 av_dup_packet(pkt.get());\r
 448                 return pkt;\r
 449         }\r
 450                  \r
 451         void send(core::const_frame& frame)\r
 452         {\r
 453                 executor_.begin_invoke([=]\r
 454                 {               \r
 455                         frame_timer_.restart();\r
 456 \r
 457                         auto video = encode_video_frame(frame);\r
 458                         auto audio = encode_audio_frame(frame);\r
 459 \r
 460                         graph_->set_value("frame-time", frame_timer_.elapsed()*format_desc_.fps*0.5);\r
 461                         \r
 462                         file_write_executor_.begin_invoke([=]\r
 463                         {\r
 464                                 write_timer_.restart();\r
 465 \r
 466                                 if(video)\r
 467                                         av_write_frame(oc_.get(), video.get());\r
 468                                 if(audio)\r
 469                                         av_write_frame(oc_.get(), audio.get());\r
 470 \r
 471                                 graph_->set_value("write-time", write_timer_.elapsed()*format_desc_.fps*0.5);\r
 472                         });\r
 473                 });\r
 474         }\r
 475 };\r
 476 \r
 477 struct ffmpeg_consumer_proxy : public core::frame_consumer\r
 478 {\r
 479         const std::wstring                              filename_;\r
 480         const std::vector<option>               options_;\r
 481 \r
 482         std::unique_ptr<ffmpeg_consumer> consumer_;\r
 483 \r
 484 public:\r
 485 \r
 486         ffmpeg_consumer_proxy(const std::wstring& filename, const std::vector<option>& options)\r
 487                 : filename_(filename)\r
 488                 , options_(options)\r
 489         {\r
 490         }\r
 491         \r
 492         virtual void initialize(const core::video_format_desc& format_desc, int)\r
 493         {\r
 494                 consumer_.reset();\r
 495                 consumer_.reset(new ffmpeg_consumer(u8(filename_), format_desc, options_));\r
 496         }\r
 497         \r
 498         virtual bool send(core::const_frame frame) override\r
 499         {\r
 500                 consumer_->send(frame);\r
 501                 return true;\r
 502         }\r
 503         \r
 504         virtual std::wstring print() const override\r
 505         {\r
 506                 return consumer_ ? consumer_->print() : L"[ffmpeg_consumer]";\r
 507         }\r
 508 \r
 509         virtual std::wstring name() const override\r
 510         {\r
 511                 return L"file";\r
 512         }\r
 513 \r
 514         virtual boost::property_tree::wptree info() const override\r
 515         {\r
 516                 boost::property_tree::wptree info;\r
 517                 info.add(L"type", L"file");\r
 518                 info.add(L"filename", filename_);\r
 519                 return info;\r
 520         }\r
 521                 \r
 522         virtual bool has_synchronization_clock() const override\r
 523         {\r
 524                 return false;\r
 525         }\r
 526 \r
 527         virtual int buffer_depth() const override\r
 528         {\r
 529                 return 1;\r
 530         }\r
 531 \r
 532         virtual int index() const override\r
 533         {\r
 534                 return 200;\r
 535         }\r
 536 };      \r
 537 \r
 538 spl::shared_ptr<core::frame_consumer> create_consumer(const std::vector<std::wstring>& params)\r
 539 {\r
 540         if(params.size() < 1 || params[0] != L"FILE")\r
 541                 return core::frame_consumer::empty();\r
 542         \r
 543         auto filename   = (params.size() > 1 ? params[1] : L"");\r
 544                         \r
 545         std::vector<option> options;\r
 546         \r
 547         if(params.size() >= 3)\r
 548         {\r
 549                 for(auto opt_it = params.begin()+2; opt_it != params.end();)\r
 550                 {\r
 551                         auto name  = u8(boost::trim_copy(boost::to_lower_copy(*opt_it++))).substr(1);\r
 552                         auto value = u8(boost::trim_copy(boost::to_lower_copy(*opt_it++)));\r
 553                                 \r
 554                         if(value == "h264")\r
 555                                 value = "libx264";\r
 556                         else if(value == "dvcpro")\r
 557                                 value = "dvvideo";\r
 558 \r
 559                         options.push_back(option(name, value));\r
 560                 }\r
 561         }\r
 562                 \r
 563         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, options);\r
 564 }\r
 565 \r
 566 spl::shared_ptr<core::frame_consumer> create_consumer(const boost::property_tree::wptree& ptree)\r
 567 {\r
 568         auto filename   = ptree.get<std::wstring>(L"path");\r
 569         auto codec              = ptree.get(L"vcodec", L"libx264");\r
 570 \r
 571         std::vector<option> options;\r
 572         options.push_back(option("vcodec", u8(codec)));\r
 573         \r
 574         return spl::make_shared<ffmpeg_consumer_proxy>(env::media_folder() + filename, options);\r
 575 }\r
 576 \r
 577 }}\r