#include "lut.h"
#include "util.h"
-using namespace std;
-using namespace boost;
+using std::string;
+using boost::shared_ptr;
using namespace libdcp;
/** Make a picture frame from a 2D (monoscopic) asset.
delete _buffer;
}
-/** @return An ARGB representation of this frame. This is ARGB in the
+/** @param reduce a factor by which to reduce the resolution
+ * of the image, expressed as a power of two (pass 0 for no
+ * reduction).
+ *
+ * @return An ARGB representation of this frame. This is ARGB in the
* Cairo sense, so that each pixel takes up 4 bytes; the first byte
* is blue, second green, third red and fourth alpha (always 255).
+ *
*/
shared_ptr<ARGBFrame>
-MonoPictureFrame::argb_frame () const
+MonoPictureFrame::argb_frame (int reduce) const
{
- opj_image_t* xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->RoData()), _buffer->Size());
+ opj_image_t* xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->RoData()), _buffer->Size(), reduce);
assert (xyz_frame->numcomps == 3);
shared_ptr<ARGBFrame> f = xyz_to_rgb (xyz_frame);
opj_image_destroy (xyz_frame);
delete _buffer;
}
-/** @return An ARGB representation of one of the eyes (left or right)
+/** @param reduce a factor by which to reduce the resolution
+ * of the image, expressed as a power of two (pass 0 for no
+ * reduction).
+ *
+ * @param eye Eye to return (EYE_LEFT or EYE_RIGHT).
+ *
+ * @return An ARGB representation of one of the eyes (left or right)
* of this frame. This is ARGB in the Cairo sense, so that each
* pixel takes up 4 bytes; the first byte is blue, second green,
* third red and fourth alpha (always 255).
*
- * @param eye Eye to return (EYE_LEFT or EYE_RIGHT).
*/
shared_ptr<ARGBFrame>
-StereoPictureFrame::argb_frame (Eye eye) const
+StereoPictureFrame::argb_frame (Eye eye, int reduce) const
{
opj_image_t* xyz_frame = 0;
switch (eye) {
case LEFT:
- xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Left.RoData()), _buffer->Left.Size());
+ xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Left.RoData()), _buffer->Left.Size(), reduce);
break;
case RIGHT:
- xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Right.RoData()), _buffer->Right.Size());
+ xyz_frame = decompress_j2k (const_cast<uint8_t*> (_buffer->Right.RoData()), _buffer->Right.Size(), reduce);
break;
}