2.0. video_format: Renamed video_mode to field_mode. image_mixer: Refactored field...

[casparcg] / modules / ffmpeg / producer / util.cpp

diff --git a/modules/ffmpeg/producer/util.cpp b/modules/ffmpeg/producer/util.cpp
index de20fe2efc8fa50edfd9777d9d0557583eecf299..5336aca50630a1741d8fb350f686ae23e854461e 100644 (file)
--- a/modules/ffmpeg/producer/util.cpp
+++ b/modules/ffmpeg/producer/util.cpp
@@ -2,6 +2,8 @@
 \r
 #include "util.h"\r
 \r
+#include "format/flv.h"\r
+\r
 #include <tbb/concurrent_unordered_map.h>\r
 #include <tbb/concurrent_queue.h>\r
 \r
@@ -14,6 +16,9 @@
 \r
 #include <tbb/parallel_for.h>\r
 \r
+#include <boost/filesystem.hpp>\r
+#include <boost/lexical_cast.hpp>\r
+\r
 #if defined(_MSC_VER)\r
 #pragma warning (push)\r
 #pragma warning (disable : 4244)\r
@@ -22,6 +27,7 @@ extern "C"
 {\r
        #include <libswscale/swscale.h>\r
        #include <libavcodec/avcodec.h>\r
+       #include <libavformat/avformat.h>\r
 }\r
 #if defined(_MSC_VER)\r
 #pragma warning (pop)\r
@@ -29,12 +35,12 @@ extern "C"
 \r
 namespace caspar {\r
 \r
-core::video_mode::type get_mode(AVFrame& frame)\r
+core::field_mode::type get_mode(AVFrame& frame)\r
 {\r
        if(!frame.interlaced_frame)\r
-               return core::video_mode::progressive;\r
+               return core::field_mode::progressive;\r
 \r
-       return frame.top_field_first ? core::video_mode::upper : core::video_mode::lower;\r
+       return frame.top_field_first ? core::field_mode::upper : core::field_mode::lower;\r
 }\r
 \r
 core::pixel_format::type get_pixel_format(PixelFormat pix_fmt)\r
@@ -191,22 +197,79 @@ safe_ptr<core::write_frame> make_write_frame(const void* tag, const safe_ptr<AVF
 \r
                        write->commit(n);\r
                }\r
+               \r
+               return write;\r
+       }\r
+}\r
 \r
-               //for(int n = 0; n < static_cast<int>(desc.planes.size()); ++n)\r
-               //{\r
-               //      auto plane            = desc.planes[n];\r
-               //      auto result           = write->image_data(n).begin();\r
-               //      auto decoded          = decoded_frame->data[n];\r
-               //      auto decoded_linesize = decoded_frame->linesize[n];\r
-               //              \r
-               //      for(size_t y = 0; y < static_cast<int>(desc.planes[n].height); ++y)\r
-               //              fast_memcpy(result + y*plane.linesize, decoded + y*decoded_linesize, plane.linesize);\r
+bool is_sane_fps(AVRational time_base)\r
+{\r
+       double fps = static_cast<double>(time_base.den) / static_cast<double>(time_base.num);\r
+       return fps > 20.0 && fps < 65.0;\r
+}\r
 \r
-               //      write->commit(n);\r
-               //}\r
+void fix_meta_data(AVFormatContext& context)\r
+{\r
+       auto video_index = av_find_best_stream(&context, AVMEDIA_TYPE_VIDEO, -1, -1, 0, 0);\r
+       auto audio_index = av_find_best_stream(&context, AVMEDIA_TYPE_AUDIO, -1, -1, 0, 0);\r
 \r
-               return write;\r
+       if(video_index < 0)\r
+               return;\r
+\r
+       auto& video_context = *context.streams[video_index]->codec;\r
+       auto& video_stream  = *context.streams[video_index];\r
+                                               \r
+       if(boost::filesystem2::path(context.filename).extension() == ".flv")\r
+       {\r
+               try\r
+               {\r
+                       auto meta = read_flv_meta_info(context.filename);\r
+                       double fps = boost::lexical_cast<double>(meta["framerate"]);\r
+                       video_context.time_base.num = 1000000;\r
+                       video_context.time_base.den = static_cast<int>(fps*1000000.0);\r
+                       video_stream.nb_frames = static_cast<int64_t>(boost::lexical_cast<double>(meta["duration"])*fps);\r
+               }\r
+               catch(...){}\r
        }\r
+       else\r
+       {\r
+               if(video_stream.nb_frames == 0)\r
+                       video_stream.nb_frames = video_stream.duration;\r
+\r
+               if(!is_sane_fps(video_context.time_base))\r
+               {                       \r
+                       if(video_context.time_base.num == 1)\r
+                               video_context.time_base.num = static_cast<int>(std::pow(10.0, static_cast<int>(std::log10(static_cast<float>(video_context.time_base.den)))-1));        \r
+\r
+                       if(!is_sane_fps(video_context.time_base) && audio_index > -1)\r
+                       {\r
+                               auto& audio_context = *context.streams[audio_index]->codec;\r
+                               auto& audio_stream  = *context.streams[audio_index];\r
+\r
+                               double duration_sec = audio_stream.duration / static_cast<double>(audio_context.sample_rate);\r
+                                                               \r
+                               video_context.time_base.num = static_cast<int>(duration_sec*100000.0);\r
+                               video_context.time_base.den = static_cast<int>(video_stream.nb_frames*100000);\r
+                       }\r
+               }\r
+       }\r
+\r
+       double fps = static_cast<double>(video_context.time_base.den) / static_cast<double>(video_context.time_base.num);\r
+\r
+       double closest_fps = 0.0;\r
+       for(int n = 0; n < core::video_format::count; ++n)\r
+       {\r
+               auto format = core::video_format_desc::get(static_cast<core::video_format::type>(n));\r
+\r
+               double diff1 = std::abs(format.fps - fps);\r
+               double diff2 = std::abs(closest_fps - fps);\r
+\r
+               if(diff1 < diff2)\r
+                       closest_fps = format.fps;\r
+       }\r
+       \r
+       video_context.time_base.num = 1000000;\r
+       video_context.time_base.den = static_cast<int>(closest_fps*1000000.0);\r
 }\r
 \r
 }
\ No newline at end of file