rendertext.hpp

   1 #ifndef _rendertext_hpp_included_
   2 #define _rendertext_hpp_included_
   3
   4 #include <map>
   5 #include "png.hpp"
   6 #include "yuv4mpeg.hpp"
   7 #include "marker.hpp"
   8
   9 struct text_render_parameters
  10 {
  11         text_render_parameters();
  12         std::string fontfile;
  13         unsigned fontsize;
  14         signed text_alignment;
  15         unsigned text_spacing;
  16         long fontface;
  17         uint32_t fg_color;
  18         uint32_t halo_color;
  19         uint32_t bg_color;
  20         signed halo_thickness;
  21         bool argument(const std::string& arg);
  22         parsed_png& render(const std::string& str);
  23         std::pair<size_t, size_t> render_size(const std::string& str);
  24 };
  25
  26 struct pre_subtitle
  27 {
  28         pre_subtitle();
  29         ~pre_subtitle();
  30         parsed_png* image;
  31         ssize_t xpos;
  32         ssize_t ypos;
  33         bool xabsolute;
  34         bool yabsolute;
  35         timemarker start;
  36         timemarker duration;
  37 };
  38
  39 struct subtitle
  40 {
  41         subtitle(const pre_subtitle& presub, const yuv4mpeg_stream_header& strmh);
  42         ~subtitle();
  43         uint8_t* data;
  44         uint32_t* alpha;
  45         size_t width;
  46         size_t height;
  47         size_t planesep;
  48         unsigned planes;
  49         bool bits16;
  50         ssize_t x;
  51         ssize_t y;
  52         uint64_t frame;
  53         uint64_t duration;
  54         static std::vector<subtitle*> from_presub(const std::vector<pre_subtitle*>& presubs,
  55                 const yuv4mpeg_stream_header& strmh);
  56         void stamp(uint8_t* data, size_t iwidth, size_t iheight, uint64_t frameno) const;
  57 };
  58
  59 struct subtitle_render_context
  60 {
  61         subtitle_render_context();
  62         text_render_parameters tparams;
  63         ssize_t xpos;
  64         ssize_t ypos;
  65         bool xabsolute;
  66         bool yabsolute;
  67         timemarker duration;
  68         bool argument(const std::string& arg, pre_subtitle*& presub);
  69         bool argument(const std::string& arg, std::vector<pre_subtitle*>& presubs)
  70         {
  71                 pre_subtitle* presub = NULL;
  72                 bool ret = argument(arg, presub);
  73                 if(presub)
  74                         presubs.push_back(presub);
  75                 return ret;
  76         }
  77 };
  78
  79 #endif