public string Convert(Project project)
{
bool rslt;
string of = GetOutputFile (project.Details.Type);
string outfile = project.FileToFullPath (of);
Logger.Debug ("Video.Convert. File {0} to {1}", filename, outfile);
// TODO: If rslt != 0 throw an exception
rslt = Backends.GStreamer.Video.Convert (filename, outfile, (uint) project.Details.FramesPerSecond);
return outfile;
}
public string Generate(Project project, ProgressEventHandler progress)
{
int total_frames = 0;
int frames_sec = project.Details.FramesPerSecond;
ProgressEventArgs args = new ProgressEventArgs ();
for (int i = 0; i < images.Count - 1; i++)
{
total_frames += (frames_sec * images[i].ShowTime) + (images[i].TransitionTime * frames_sec);
((SlideImage) images[i]).Project = project;
}
((SlideImage) images[images.Count - 1]).Project = project;
total_frames += frames_sec * images[images.Count - 1].ShowTime;
args.Total = images.Count;
Logger.Debug ("SlideShow.Generate. Generating MPEG for " + images.Count + " images " + "total frames " + total_frames + " at " + filename);
string outfile;
if (filename == null)
outfile = GetOutputFile (project.Details.Type);
else
outfile = filename;
Backends.GStreamer.SlideShow.CreateStream (project.FileToFullPath (outfile), project.Details.Type,
(uint) project.Details.Width, (uint) project.Details.Height, (uint) frames_sec, (uint) total_frames);
if (AudioFile != null) {
Logger.Debug ("SlideShow.Generate. Audiofile {0}", AudioFile);
Backends.GStreamer.SlideShow.AddAudio (AudioFile);
}
Transition transition;
Logger.Debug ("SlideShow.Generate. Images.Count {0}", images.Count);
// We need to make sure that source and target slides are loaded. Here we make sure that source is loaded
((SlideImage) images[0]).LoadSlide ();
for (int i = 0; i < images.Count - 1; i++) {
if (progress != null) {
args.Progress = args.Progress + 1;
progress (this, args);
}
Logger.Debug ("SlideShow.Generate. Send Fixed image {0}, time {1} (frames)", i, (uint) (frames_sec * images[i].ShowTime));
transition = TransitionManager.CreateFromName (images[i].Transition);
Backends.GStreamer.SlideShow.AddImageFixed (((SlideImage)images[i]), (uint) (frames_sec * images[i].ShowTime));
// Transition between two images
Logger.Debug ("SlideShow.Generate. Generate transition for frames_sec {0} and time {1}", frames_sec, images[i].TransitionTime);
// We need to make sure that source and target slides are loaded. Here we make sure that target is loaded
((SlideImage) images[i + 1]).LoadSlide (); // Here we do target
transition.Source = (SlideImage) images[i];
transition.Target = (SlideImage) images[i + 1];
transition.Frames = frames_sec * images[i].TransitionTime;
foreach (SlideImage img in transition)
Backends.GStreamer.SlideShow.AddImage (img);
Logger.Debug ("Sending subimage completed");
((SlideImage) images[i]).ReleasePixels ();
}
Logger.Debug ("SlideShow.Generate. Send fixed image time {0} (frames)", (uint) (frames_sec * images[images.Count -1].ShowTime));
Backends.GStreamer.SlideShow.AddImageFixed (((SlideImage)images[images.Count - 1]), (uint) (frames_sec * images[images.Count -1].ShowTime));
((SlideImage) images[images.Count - 1]).ReleasePixels ();
if (progress != null) {
args.Progress = args.Progress + 1;
progress (this, args);
}
// This a blocking call. It does not return until the pipeline sends an EOS
Backends.GStreamer.SlideShow.Close ();
Logger.Debug ("SlideShow.Generate. Finished generation");
return project.FileToFullPath (outfile);
}