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