#include "mono_picture_frame.h"
#include "exceptions.h"
-#include "argb_frame.h"
#include "util.h"
#include "rgb_xyz.h"
#include "colour_conversion.h"
#include "KM_fileio.h"
#include "AS_DCP.h"
+#include "compose.hpp"
#include <openjpeg.h>
#define DCI_GAMMA 2.6
using std::string;
using boost::shared_ptr;
+using boost::optional;
using namespace dcp;
/** Make a picture frame from a JPEG2000 file.
{
boost::uintmax_t const size = boost::filesystem::file_size (path);
_buffer = new ASDCP::JP2K::FrameBuffer (size);
- FILE* f = fopen_boost (path, "r");
+ FILE* f = fopen_boost (path, "rb");
if (!f) {
boost::throw_exception (FileError ("could not open JPEG2000 file", path, errno));
}
}
/** Make a picture frame from a 2D (monoscopic) asset.
- * @param mxf_path Path to the asset's MXF file.
+ * @param path Path to the asset's MXF file.
* @param n Frame within the asset, not taking EntryPoint into account.
* @param c Context for decryption, or 0.
*/
-MonoPictureFrame::MonoPictureFrame (boost::filesystem::path mxf_path, int n, ASDCP::AESDecContext* c)
+MonoPictureFrame::MonoPictureFrame (boost::filesystem::path path, int n, ASDCP::AESDecContext* c)
{
ASDCP::JP2K::MXFReader reader;
- Kumu::Result_t r = reader.OpenRead (mxf_path.string().c_str());
+ Kumu::Result_t r = reader.OpenRead (path.string().c_str());
if (ASDCP_FAILURE (r)) {
- boost::throw_exception (FileError ("could not open MXF file for reading", mxf_path, r));
+ boost::throw_exception (FileError ("could not open MXF file for reading", path, r));
}
/* XXX: unfortunate guesswork on this buffer size */
_buffer = new ASDCP::JP2K::FrameBuffer (4 * Kumu::Megabyte);
if (ASDCP_FAILURE (reader.ReadFrame (n, *_buffer, c))) {
- boost::throw_exception (DCPReadError ("could not read video frame"));
+ boost::throw_exception (DCPReadError (String::compose ("could not read video frame %1 of %2", n, path.string())));
}
}
/** @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 srgb_gamma Reciprocal of output gamma to use after
- * the conversion from XYZ to RGB.
- *
- * @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 (int reduce, float srgb_gamma) const
+shared_ptr<OpenJPEGImage>
+MonoPictureFrame::xyz_image (int reduce) const
{
- return xyz_to_rgba (
- decompress_j2k (const_cast<uint8_t*> (_buffer->RoData()), _buffer->Size(), reduce),
- ColourConversion::xyz_to_srgb
- );
-}
-
-void
-MonoPictureFrame::rgb_frame (uint16_t* buffer) const
-{
- xyz_to_rgb (
- decompress_j2k (const_cast<uint8_t*> (_buffer->RoData()), _buffer->Size(), 0),
- ColourConversion::xyz_to_srgb,
- buffer
- );
+ return decompress_j2k (const_cast<uint8_t*> (_buffer->RoData()), _buffer->Size(), reduce);
}