src/lib/video_content.cc

   1 #include <libcxml/cxml.h>
   2 #include "video_content.h"
   3 #include "video_decoder.h"
   4
   5 int const VideoContentProperty::VIDEO_LENGTH = 0;
   6 int const VideoContentProperty::VIDEO_SIZE = 1;
   7 int const VideoContentProperty::VIDEO_FRAME_RATE = 2;
   8
   9 using std::string;
  10 using boost::shared_ptr;
  11 using boost::lexical_cast;
  12
  13 VideoContent::VideoContent (boost::filesystem::path f)
  14         : Content (f)
  15         , _video_length (0)
  16 {
  17
  18 }
  19
  20 VideoContent::VideoContent (shared_ptr<const cxml::Node> node)
  21         : Content (node)
  22 {
  23         _video_length = node->number_child<ContentVideoFrame> ("VideoLength");
  24         _video_size.width = node->number_child<int> ("VideoWidth");
  25         _video_size.height = node->number_child<int> ("VideoHeight");
  26         _video_frame_rate = node->number_child<float> ("VideoFrameRate");
  27 }
  28
  29 void
  30 VideoContent::as_xml (xmlpp::Node* node) const
  31 {
  32         boost::mutex::scoped_lock lm (_mutex);
  33         node->add_child("VideoLength")->add_child_text (lexical_cast<string> (_video_length));
  34         node->add_child("VideoWidth")->add_child_text (lexical_cast<string> (_video_size.width));
  35         node->add_child("VideoHeight")->add_child_text (lexical_cast<string> (_video_size.height));
  36         node->add_child("VideoFrameRate")->add_child_text (lexical_cast<string> (_video_frame_rate));
  37 }
  38
  39 void
  40 VideoContent::take_from_video_decoder (shared_ptr<VideoDecoder> d)
  41 {
  42         {
  43                 boost::mutex::scoped_lock lm (_mutex);
  44                 _video_size = d->native_size ();
  45                 _video_frame_rate = d->frames_per_second ();
  46         }
  47
  48         Changed (VideoContentProperty::VIDEO_SIZE);
  49         Changed (VideoContentProperty::VIDEO_FRAME_RATE);
  50 }