/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2013 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
ImageMagickDecoder::ImageMagickDecoder (shared_ptr<const Film> f, shared_ptr<const ImageMagickContent> c)
: Decoder (f)
- , VideoDecoder (f, c)
- , _imagemagick_content (c)
+ , VideoDecoder (f)
+ , ImageMagick (c)
{
}
-libdcp::Size
-ImageMagickDecoder::video_size () const
-{
- if (!_video_size) {
- using namespace MagickCore;
- Magick::Image* image = new Magick::Image (_imagemagick_content->file().string());
- _video_size = libdcp::Size (image->columns(), image->rows());
- delete image;
- }
-
- return _video_size.get ();
-}
-
-int
-ImageMagickDecoder::video_length () const
-{
- return _imagemagick_content->video_length ();
-}
-
-float
-ImageMagickDecoder::video_frame_rate () const
-{
- boost::shared_ptr<const Film> f = _film.lock ();
- if (!f) {
- return 24;
- }
-
- return f->dcp_video_frame_rate ();
-}
-
void
ImageMagickDecoder::pass ()
{
- if (_position < 0 || _position >= _imagemagick_content->video_length ()) {
+ if (_video_position >= _imagemagick_content->video_length ()) {
return;
}
if (_image) {
- video (_image, true, double (_position) / video_frame_rate());
- _position++;
+ video (_image, true, _video_position);
return;
}
delete magick_image;
- _image = _image->crop (_imagemagick_content->crop(), true);
- video (_image, false, double (_position) / 24);
-
- ++_position;
- return false;
+ video (_image, false, _video_position);
}
-PixelFormat
-ImageMagickDecoder::pixel_format () const
+void
+ImageMagickDecoder::seek (VideoContent::Frame frame)
{
- /* XXX: always true? */
- return PIX_FMT_RGB24;
+ _video_position = frame;
}
-bool
-ImageMagickDecoder::seek (double t)
+void
+ImageMagickDecoder::seek_back ()
{
- int const f = t * _imagemagick_content->video_frame_rate ();
-
- if (f >= _imagemagick_content->video_length()) {
- _position = 0;
- return true;
+ if (_video_position > 0) {
+ _video_position--;
}
-
- _position = f;
- return false;
}
-Time
-ImageMagickDecoder::next () const
+bool
+ImageMagickDecoder::done () const
{
- return _next_video;
+ return _video_position >= _imagemagick_content->video_length ();
}