#include "image_content.h"
#include "image_decoder.h"
#include "image.h"
+#include "magick_image_proxy.h"
+#include "j2k_image_proxy.h"
#include "film.h"
#include "exceptions.h"
ImageDecoder::ImageDecoder (shared_ptr<const ImageContent> c)
: VideoDecoder (c)
, _image_content (c)
+ , _video_position (0)
{
}
bool
ImageDecoder::pass ()
{
- if (_video_position >= _image_content->video_length().frames (_image_content->video_frame_rate ())) {
+ if (_video_position >= _image_content->video_length()) {
return true;
}
- if (_image && _image_content->still ()) {
- video (_image, _video_position);
- ++_video_position;
- return false;
- }
-
- Magick::Image* magick_image = 0;
-
- boost::filesystem::path const path = _image_content->path (_image_content->still() ? 0 : _video_position);
-
- try {
- magick_image = new Magick::Image (path.string ());
- } catch (...) {
- throw OpenFileError (path);
- }
-
- dcp::Size size (magick_image->columns(), magick_image->rows());
-
- _image.reset (new Image (PIX_FMT_RGB24, size, true));
-
- using namespace MagickCore;
-
- uint8_t* p = _image->data()[0];
- for (int y = 0; y < size.height; ++y) {
- uint8_t* q = p;
- for (int x = 0; x < size.width; ++x) {
- Magick::Color c = magick_image->pixelColor (x, y);
- *q++ = c.redQuantum() * 255 / QuantumRange;
- *q++ = c.greenQuantum() * 255 / QuantumRange;
- *q++ = c.blueQuantum() * 255 / QuantumRange;
+ if (!_image_content->still() || !_image) {
+ /* Either we need an image or we are using moving images, so load one */
+ boost::filesystem::path path = _image_content->path (_image_content->still() ? 0 : _video_position);
+ if (valid_j2k_file (path)) {
+ /* We can't extract image size from a JPEG2000 codestream without decoding it,
+ so pass in the image content's size here.
+ */
+ _image.reset (new J2KImageProxy (path, _image_content->video_size ()));
+ } else {
+ _image.reset (new MagickImageProxy (path));
}
- p += _image->stride()[0];
}
- delete magick_image;
-
video (_image, _video_position);
++_video_position;
-
return false;
}
ImageDecoder::seek (ContentTime time, bool accurate)
{
VideoDecoder::seek (time, accurate);
- _video_position = time.frames (_image_content->video_frame_rate ());
+ _video_position = time.frames_round (_image_content->video_frame_rate ());
}