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