git.sesse.net Git - casparcg/blob - modules/ffmpeg/producer/filter/filter.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 "filter.h"\r
  25 \r
  26 #include "parallel_yadif.h"\r
  27 \r
  28 #include "../../ffmpeg_error.h"\r
  29 \r
  30 #include <common/exception/exceptions.h>\r
  31 \r
  32 #include <boost/assign.hpp>\r
  33 #include <boost/range/iterator_range.hpp>\r
  34 #include <boost/range/adaptors.hpp>\r
  35 #include <boost/assign.hpp>\r
  36 #include <boost/algorithm/string.hpp>\r
  37 #include <boost/foreach.hpp>\r
  38 \r
  39 #include <cstdio>\r
  40 #include <sstream>\r
  41 \r
  42 #if defined(_MSC_VER)\r
  43 #pragma warning (push)\r
  44 #pragma warning (disable : 4244)\r
  45 #endif\r
  46 extern "C" \r
  47 {\r
  48         #include <libavutil/avutil.h>\r
  49         #include <libavutil/imgutils.h>\r
  50         #include <libavfilter/avfilter.h>\r
  51         #include <libavfilter/avcodec.h>\r
  52         #include <libavfilter/avfiltergraph.h>\r
  53         #include <libavfilter/buffersink.h>\r
  54         #include <libavfilter/vsrc_buffer.h>\r
  55 }\r
  56 #if defined(_MSC_VER)\r
  57 #pragma warning (pop)\r
  58 #endif\r
  59 \r
  60 \r
  61 namespace caspar { namespace ffmpeg {\r
  62 \r
  63 static int query_formats_444(AVFilterContext *ctx)\r
  64 {\r
  65     static const int pix_fmts[] = {PIX_FMT_YUV444P, PIX_FMT_NONE};\r
  66     avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));\r
  67     return 0;\r
  68 }\r
  69 \r
  70 static int query_formats_422(AVFilterContext *ctx)\r
  71 {\r
  72     static const int pix_fmts[] = {PIX_FMT_YUV422P, PIX_FMT_NONE};\r
  73     avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));\r
  74     return 0;\r
  75 }\r
  76 \r
  77 static int query_formats_420(AVFilterContext *ctx)\r
  78 {\r
  79     static const int pix_fmts[] = {PIX_FMT_YUV420P, PIX_FMT_NONE};\r
  80     avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));\r
  81     return 0;\r
  82 }\r
  83 \r
  84 static int query_formats_420a(AVFilterContext *ctx)\r
  85 {\r
  86     static const int pix_fmts[] = {PIX_FMT_YUVA420P, PIX_FMT_NONE};\r
  87     avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));\r
  88     return 0;\r
  89 }\r
  90 \r
  91 static int query_formats_411(AVFilterContext *ctx)\r
  92 {\r
  93     static const int pix_fmts[] = {PIX_FMT_YUV411P, PIX_FMT_NONE};\r
  94     avfilter_set_common_pixel_formats(ctx, avfilter_make_format_list(pix_fmts));\r
  95     return 0;\r
  96 }\r
  97 \r
  98 struct filter::implementation\r
  99 {\r
 100         std::wstring                                    filters_;\r
 101         std::shared_ptr<AVFilterGraph>  graph_; \r
 102         AVFilterContext*                                buffersink_ctx_;\r
 103         AVFilterContext*                                buffersrc_ctx_;\r
 104         std::shared_ptr<void>                   parallel_yadif_ctx_;\r
 105         std::vector<PixelFormat>                pix_fmts_;\r
 106         std::queue<safe_ptr<AVFrame>>   bypass_;\r
 107                 \r
 108         implementation(const std::wstring& filters, const std::vector<PixelFormat>& pix_fmts) \r
 109                 : filters_(filters)\r
 110                 , parallel_yadif_ctx_(nullptr)\r
 111                 , pix_fmts_(pix_fmts)\r
 112         {\r
 113                 if(pix_fmts_.empty())\r
 114                 {\r
 115                         pix_fmts_ = boost::assign::list_of\r
 116                                 (PIX_FMT_YUVA420P)\r
 117                                 (PIX_FMT_YUV444P)\r
 118                                 (PIX_FMT_YUV422P)\r
 119                                 (PIX_FMT_YUV420P)\r
 120                                 (PIX_FMT_YUV411P)\r
 121                                 (PIX_FMT_BGRA)\r
 122                                 (PIX_FMT_ARGB)\r
 123                                 (PIX_FMT_RGBA)\r
 124                                 (PIX_FMT_ABGR)\r
 125                                 (PIX_FMT_GRAY8);\r
 126                 }\r
 127                 \r
 128                 pix_fmts_.push_back(PIX_FMT_NONE);\r
 129         }\r
 130         \r
 131         void push(const std::shared_ptr<AVFrame>& frame)\r
 132         {               \r
 133                 if(!frame)\r
 134                         return;\r
 135 \r
 136                 if(frame->data[0] == nullptr || frame->width < 1)\r
 137                         BOOST_THROW_EXCEPTION(invalid_argument());\r
 138 \r
 139                 if(filters_.empty())\r
 140                 {\r
 141                         bypass_.push(make_safe_ptr(frame));\r
 142                         return;\r
 143                 }\r
 144                 \r
 145                 try\r
 146                 {\r
 147                         if(!graph_)\r
 148                         {\r
 149                                 try\r
 150                                 {\r
 151                                         graph_.reset(avfilter_graph_alloc(), [](AVFilterGraph* p){avfilter_graph_free(&p);});\r
 152                                                                 \r
 153                                         // Input\r
 154                                         std::stringstream args;\r
 155                                         args << frame->width << ":" << frame->height << ":" << frame->format << ":" << 0 << ":" << 0 << ":" << 0 << ":" << 0; // don't care about pts and aspect_ratio\r
 156                                         THROW_ON_ERROR2(avfilter_graph_create_filter(&buffersrc_ctx_, avfilter_get_by_name("buffer"), "src", args.str().c_str(), NULL, graph_.get()), "[filter]");\r
 157                                         \r
 158 #if FF_API_OLD_VSINK_API\r
 159                                         THROW_ON_ERROR2(avfilter_graph_create_filter(&buffersink_ctx_, avfilter_get_by_name("buffersink"), "out", NULL, pix_fmts_.data(), graph_.get()), "[filter]");\r
 160 #else\r
 161                                         safe_ptr<AVBufferSinkParams> buffersink_params(av_buffersink_params_alloc(), av_free);\r
 162                                         buffersink_params->pixel_fmts = pix_fmts_.data();\r
 163                                         THROW_ON_ERROR2(avfilter_graph_create_filter(&buffersink_ctx_, avfilter_get_by_name("buffersink"), "out", NULL, buffersink_params.get(), graph_.get()), "[filter]");\r
 164 #endif\r
 165                                         AVFilterInOut* inputs  = avfilter_inout_alloc();\r
 166                                         AVFilterInOut* outputs = avfilter_inout_alloc();\r
 167                                                                 \r
 168                                         outputs->name                   = av_strdup("in");\r
 169                                         outputs->filter_ctx             = buffersrc_ctx_;\r
 170                                         outputs->pad_idx                = 0;\r
 171                                         outputs->next                   = nullptr;\r
 172 \r
 173                                         inputs->name                    = av_strdup("out");\r
 174                                         inputs->filter_ctx              = buffersink_ctx_;\r
 175                                         inputs->pad_idx                 = 0;\r
 176                                         inputs->next                    = nullptr;\r
 177                         \r
 178                                         std::string filters = boost::to_lower_copy(narrow(filters_));\r
 179                                         THROW_ON_ERROR2(avfilter_graph_parse(graph_.get(), filters.c_str(), &inputs, &outputs, NULL), "[filter]");\r
 180                         \r
 181                                         auto yadif_filter = boost::adaptors::filtered([&](AVFilterContext* p){return strstr(p->name, "yadif") != 0;});\r
 182 \r
 183                                         BOOST_FOREACH(auto filter_ctx, boost::make_iterator_range(graph_->filters, graph_->filters + graph_->filter_count) | yadif_filter)\r
 184                                         {\r
 185                                                 filter_ctx->filter->query_formats = [&]() -> int (*)(AVFilterContext*)\r
 186                                                 {\r
 187                                                         switch(frame->format)\r
 188                                                         {\r
 189                                                         case PIX_FMT_UYVY422:   return query_formats_422;\r
 190                                                         case PIX_FMT_YUYV422:   return query_formats_422;\r
 191                                                         case PIX_FMT_UYYVYY411: return query_formats_411;\r
 192                                                         case PIX_FMT_YUV420P10: return query_formats_420;\r
 193                                                         case PIX_FMT_YUV422P10: return query_formats_422;\r
 194                                                         case PIX_FMT_YUV444P10: return query_formats_444;\r
 195                                                         case PIX_FMT_YUV420P9:  return query_formats_420;\r
 196                                                         case PIX_FMT_YUV422P9:  return query_formats_422;\r
 197                                                         case PIX_FMT_YUV444P9:  return query_formats_444;\r
 198                                                         case PIX_FMT_BGR24:             return query_formats_444;\r
 199                                                         case PIX_FMT_RGB24:             return query_formats_444;\r
 200                                                         case PIX_FMT_BGRA:              return query_formats_420a;\r
 201                                                         case PIX_FMT_RGBA:              return query_formats_420a;\r
 202                                                         case PIX_FMT_ABGR:              return query_formats_420a;\r
 203                                                         case PIX_FMT_ARGB:              return query_formats_420a;\r
 204                                                         default:                                return filter_ctx->filter->query_formats;\r
 205                                                         }\r
 206                                                 }();\r
 207                                         }\r
 208                                         \r
 209                                         THROW_ON_ERROR2(avfilter_graph_config(graph_.get(), NULL), "[filter]"); \r
 210                                         \r
 211                                         BOOST_FOREACH(auto filter_ctx, boost::make_iterator_range(graph_->filters, graph_->filters + graph_->filter_count) | yadif_filter)                                              \r
 212                                                 parallel_yadif_ctx_ = make_parallel_yadif(filter_ctx);                                          \r
 213                                 }\r
 214                                 catch(...)\r
 215                                 {\r
 216                                         graph_ = nullptr;\r
 217                                         throw;\r
 218                                 }\r
 219                         }\r
 220                 \r
 221                         THROW_ON_ERROR2(av_vsrc_buffer_add_frame(buffersrc_ctx_, frame.get(), 0), "[filter]");\r
 222                 }\r
 223                 catch(ffmpeg_error&)\r
 224                 {\r
 225                         throw;\r
 226                 }\r
 227                 catch(...)\r
 228                 {\r
 229                         BOOST_THROW_EXCEPTION(ffmpeg_error() << boost::errinfo_nested_exception(boost::current_exception()));\r
 230                 }\r
 231         }\r
 232 \r
 233         std::shared_ptr<AVFrame> poll()\r
 234         {\r
 235                 if(filters_.empty())\r
 236                 {\r
 237                         if(bypass_.empty())\r
 238                                 return nullptr;\r
 239                         auto frame = bypass_.front();\r
 240                         bypass_.pop();\r
 241                         return frame;\r
 242                 }\r
 243 \r
 244                 if(!graph_)\r
 245                         return nullptr;\r
 246                 \r
 247                 try\r
 248                 {\r
 249                         if(avfilter_poll_frame(buffersink_ctx_->inputs[0])) \r
 250                         {\r
 251                                 AVFilterBufferRef *picref;\r
 252                                 THROW_ON_ERROR2(av_buffersink_get_buffer_ref(buffersink_ctx_, &picref, 0), "[filter]");\r
 253 \r
 254                                 if (!picref) \r
 255                                         return nullptr;\r
 256                                 \r
 257                                 safe_ptr<AVFrame> frame(avcodec_alloc_frame(), [=](AVFrame* p)\r
 258                                 {\r
 259                                         av_free(p);\r
 260                                         avfilter_unref_buffer(picref);\r
 261                                 });\r
 262 \r
 263                                 avcodec_get_frame_defaults(frame.get());        \r
 264 \r
 265                                 memcpy(frame->data,     picref->data,     sizeof(frame->data));\r
 266                                 memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));\r
 267                                 frame->format                           = picref->format;\r
 268                                 frame->width                            = picref->video->w;\r
 269                                 frame->height                           = picref->video->h;\r
 270                                 frame->pkt_pos                          = picref->pos;\r
 271                                 frame->interlaced_frame         = picref->video->interlaced;\r
 272                                 frame->top_field_first          = picref->video->top_field_first;\r
 273                                 frame->key_frame                        = picref->video->key_frame;\r
 274                                 frame->pict_type                        = picref->video->pict_type;\r
 275                                 frame->sample_aspect_ratio      = picref->video->sample_aspect_ratio;\r
 276                                         \r
 277                                 return frame;                           \r
 278                         }\r
 279 \r
 280                         return nullptr;\r
 281                 }\r
 282                 catch(ffmpeg_error&)\r
 283                 {\r
 284                         throw;\r
 285                 }\r
 286                 catch(...)\r
 287                 {\r
 288                         BOOST_THROW_EXCEPTION(ffmpeg_error() << boost::errinfo_nested_exception(boost::current_exception()));\r
 289                 }\r
 290         }\r
 291 };\r
 292 \r
 293 filter::filter(const std::wstring& filters, const std::vector<PixelFormat>& pix_fmts) : impl_(new implementation(filters, pix_fmts)){}\r
 294 filter::filter(filter&& other) : impl_(std::move(other.impl_)){}\r
 295 filter& filter::operator=(filter&& other){impl_ = std::move(other.impl_); return *this;}\r
 296 void filter::push(const std::shared_ptr<AVFrame>& frame){impl_->push(frame);}\r
 297 std::shared_ptr<AVFrame> filter::poll(){return impl_->poll();}\r
 298 std::wstring filter::filter_str() const{return impl_->filters_;}\r
 299 std::vector<safe_ptr<AVFrame>> filter::poll_all()\r
 300 {       \r
 301         std::vector<safe_ptr<AVFrame>> frames;\r
 302         for(auto frame = poll(); frame; frame = poll())\r
 303                 frames.push_back(make_safe_ptr(frame));\r
 304         return frames;\r
 305 }\r
 306 \r
 307 }}