/*
- 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)
- , _position (0)
+ , VideoDecoder (f)
+ , ImageMagick (c)
{
}
-libdcp::Size
-ImageMagickDecoder::native_size () const
-{
- if (!_native_size) {
- using namespace MagickCore;
- Magick::Image* image = new Magick::Image (_imagemagick_content->file().string());
- _native_size = libdcp::Size (image->columns(), image->rows());
- delete image;
- }
-
- return _native_size.get ();
-}
-
-int
-ImageMagickDecoder::video_length () const
-{
- return _imagemagick_content->video_length ();
-}
-
-bool
+void
ImageMagickDecoder::pass ()
{
- if (_position < 0 || _position >= _imagemagick_content->video_length ()) {
- return true;
+ if (_video_position >= _imagemagick_content->video_length ()) {
+ return;
}
if (_image) {
- emit_video (_image, true, double (_position) / 24);
- _position++;
- return false;
+ video (_image, true, _video_position);
+ return;
}
Magick::Image* magick_image = new Magick::Image (_imagemagick_content->file().string ());
- _native_size = libdcp::Size (magick_image->columns(), magick_image->rows());
+ _video_size = libdcp::Size (magick_image->columns(), magick_image->rows());
- _image.reset (new SimpleImage (PIX_FMT_RGB24, _native_size.get(), false));
+ _image.reset (new SimpleImage (PIX_FMT_RGB24, _video_size.get(), false));
using namespace MagickCore;
uint8_t* p = _image->data()[0];
- for (int y = 0; y < _native_size->height; ++y) {
- for (int x = 0; x < _native_size->width; ++x) {
+ for (int y = 0; y < _video_size->height; ++y) {
+ for (int x = 0; x < _video_size->width; ++x) {
Magick::Color c = magick_image->pixelColor (x, y);
*p++ = c.redQuantum() * 255 / QuantumRange;
*p++ = c.greenQuantum() * 255 / QuantumRange;
delete magick_image;
- _image = _image->crop (_imagemagick_content->crop(), true);
- emit_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 ();
}