*/
+/** @file src/picture_asset.cc
+ * @brief An asset made up of JPEG2000 files
+ */
+
#include <list>
#include <stdexcept>
#include <iostream>
#include <sstream>
#include <boost/filesystem.hpp>
+#include <boost/lexical_cast.hpp>
+#include <openjpeg.h>
+#include <libxml++/nodes/element.h>
#include "AS_DCP.h"
#include "KM_fileio.h"
#include "picture_asset.h"
#include "util.h"
+#include "exceptions.h"
+#include "xyz_frame.h"
+#include "picture_asset_writer.h"
-using namespace std;
-using namespace boost;
+using std::string;
+using std::ostream;
+using std::list;
+using std::vector;
+using std::max;
+using std::stringstream;
+using std::pair;
+using std::make_pair;
+using std::istream;
+using std::cout;
+using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using boost::lexical_cast;
using namespace libdcp;
-/** Construct a PictureAsset, generating the MXF from the JPEG2000 files.
- * This may take some time; progress is indicated by emission of the Progress signal.
- * @param files Pathnames of JPEG2000 files, in frame order.
- * @param p Pathname of MXF file to create.
- * @param fps Frames per second.
- * @param len Length in frames.
- * @param w Width of images in pixels.
- * @param h Height of images in pixels.
- */
+PictureAsset::PictureAsset (boost::filesystem::path directory, boost::filesystem::path mxf_name)
+ : MXFAsset (directory, mxf_name)
+{
+
+}
-PictureAsset::PictureAsset (list<string> const & files, string p, sigc::signal1<void, float>* progress, int fps, int len, int w, int h)
- : Asset (p, progress, fps, len)
- , _width (w)
- , _height (h)
+void
+PictureAsset::write_to_cpl (xmlpp::Element* node, bool interop) const
{
- ASDCP::JP2K::CodestreamParser j2k_parser;
- ASDCP::JP2K::FrameBuffer frame_buffer (4 * Kumu::Megabyte);
- if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (files.front().c_str(), frame_buffer))) {
- stringstream s;
- s << "could not open " << files.front() << " for reading";
- throw runtime_error (s.str());
+ MXFAsset::write_to_cpl (node, interop);
+
+ xmlpp::Node::NodeList c = node->get_children ();
+ xmlpp::Node::NodeList::iterator i = c.begin();
+ while (i != c.end() && (*i)->get_name() != cpl_node_name ()) {
+ ++i;
+ }
+
+ assert (i != c.end ());
+
+ (*i)->add_child ("FrameRate")->add_child_text (lexical_cast<string> (_edit_rate * edit_rate_factor ()) + " 1");
+ if (interop) {
+ (*i)->add_child ("ScreenAspectRatio")->add_child_text (lexical_cast<string> (float (_size.width) / _size.height));
+ } else {
+ (*i)->add_child ("ScreenAspectRatio")->add_child_text (lexical_cast<string> (_size.width) + " " + lexical_cast<string> (_size.height));
+ }
+}
+
+bool
+PictureAsset::descriptor_equals (
+ ASDCP::JP2K::PictureDescriptor const & a, ASDCP::JP2K::PictureDescriptor const & b, boost::function<void (NoteType, string)> note
+ ) const
+{
+ if (
+ a.EditRate != b.EditRate ||
+ a.SampleRate != b.SampleRate ||
+ a.StoredWidth != b.StoredWidth ||
+ a.StoredHeight != b.StoredHeight ||
+ a.AspectRatio != b.AspectRatio ||
+ a.Rsize != b.Rsize ||
+ a.Xsize != b.Xsize ||
+ a.Ysize != b.Ysize ||
+ a.XOsize != b.XOsize ||
+ a.YOsize != b.YOsize ||
+ a.XTsize != b.XTsize ||
+ a.YTsize != b.YTsize ||
+ a.XTOsize != b.XTOsize ||
+ a.YTOsize != b.YTOsize ||
+ a.Csize != b.Csize
+// a.CodingStyleDefault != b.CodingStyleDefault ||
+// a.QuantizationDefault != b.QuantizationDefault
+ ) {
+
+ note (ERROR, "video MXF picture descriptors differ");
+ return false;
+ }
+
+ if (a.ContainerDuration != b.ContainerDuration) {
+ note (ERROR, "video container durations differ");
}
- ASDCP::JP2K::PictureDescriptor picture_desc;
- j2k_parser.FillPictureDescriptor (picture_desc);
- picture_desc.EditRate = ASDCP::Rational (_fps, 1);
+// for (unsigned int j = 0; j < ASDCP::JP2K::MaxComponents; ++j) {
+// if (a.ImageComponents[j] != b.ImageComponents[j]) {
+// notes.pack_start ("video MXF picture descriptors differ");
+// }
+// }
+
+ return true;
+}
+
+bool
+PictureAsset::frame_buffer_equals (
+ int frame, EqualityOptions opt, boost::function<void (NoteType, string)> note,
+ uint8_t const * data_A, unsigned int size_A, uint8_t const * data_B, unsigned int size_B
+ ) const
+{
+ if (size_A == size_B && memcmp (data_A, data_B, size_A) == 0) {
+ note (NOTE, "J2K identical");
+ /* Easy result; the J2K data is identical */
+ return true;
+ }
+
+ /* Decompress the images to bitmaps */
+ shared_ptr<XYZFrame> image_A = decompress_j2k (const_cast<uint8_t*> (data_A), size_A, 0);
+ shared_ptr<XYZFrame> image_B = decompress_j2k (const_cast<uint8_t*> (data_B), size_B, 0);
- ASDCP::WriterInfo writer_info;
- fill_writer_info (&writer_info);
+ /* Compare them */
- ASDCP::JP2K::MXFWriter mxf_writer;
- if (ASDCP_FAILURE (mxf_writer.OpenWrite (_mxf_path.c_str(), writer_info, picture_desc))) {
- throw runtime_error ("could not open MXF for writing");
- }
-
- int j = 0;
- for (list<string>::const_iterator i = files.begin(); i != files.end(); ++i) {
- if (ASDCP_FAILURE (j2k_parser.OpenReadFrame (i->c_str(), frame_buffer))) {
- stringstream s;
- s << "could not open " << *i << " for reading";
- throw runtime_error (s.str());
+ vector<int> abs_diffs (image_A->size().width * image_A->size().height * 3);
+ int d = 0;
+ int max_diff = 0;
+
+ for (int c = 0; c < 3; ++c) {
+
+ if (image_A->size() != image_B->size()) {
+ note (ERROR, "image sizes for frame " + lexical_cast<string>(frame) + " differ");
+ return false;
}
-
- /* XXX: passing 0 to WriteFrame ok? */
- if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, 0, 0))) {
- throw runtime_error ("error in writing video MXF");
+
+ int const pixels = image_A->size().width * image_A->size().height;
+ for (int j = 0; j < pixels; ++j) {
+ int const t = abs (image_A->data(c)[j] - image_B->data(c)[j]);
+ abs_diffs[d++] = t;
+ max_diff = max (max_diff, t);
}
+ }
- ++j;
- (*_progress) (0.5 * float (j) / files.size ());
+ uint64_t total = 0;
+ for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
+ total += *j;
+ }
+
+ double const mean = double (total) / abs_diffs.size ();
+
+ uint64_t total_squared_deviation = 0;
+ for (vector<int>::iterator j = abs_diffs.begin(); j != abs_diffs.end(); ++j) {
+ total_squared_deviation += pow (*j - mean, 2);
}
- if (ASDCP_FAILURE (mxf_writer.Finalize())) {
- throw runtime_error ("error in finalising video MXF");
+ double const std_dev = sqrt (double (total_squared_deviation) / abs_diffs.size());
+
+ note (NOTE, "mean difference " + lexical_cast<string> (mean) + ", deviation " + lexical_cast<string> (std_dev));
+
+ if (mean > opt.max_mean_pixel_error) {
+ note (
+ ERROR,
+ "mean " + lexical_cast<string>(mean) +
+ " out of range " + lexical_cast<string>(opt.max_mean_pixel_error) +
+ " in frame " + lexical_cast<string>(frame)
+ );
+
+ return false;
+ }
+
+ if (std_dev > opt.max_std_dev_pixel_error) {
+ note (
+ ERROR,
+ "standard deviation " + lexical_cast<string>(std_dev) +
+ " out of range " + lexical_cast<string>(opt.max_std_dev_pixel_error) +
+ " in frame " + lexical_cast<string>(frame)
+ );
+
+ return false;
}
- _digest = make_digest (_mxf_path, _progress);
+ return true;
}
-/** Write details of this asset to a CPL stream.
- * @param s Stream.
- */
-void
-PictureAsset::write_to_cpl (ostream& s) const
+string
+PictureAsset::key_type () const
{
- s << " <MainPicture>\n"
- << " <Id>urn:uuid:" << _uuid << "</Id>\n"
- << " <AnnotationText>" << filesystem::path(_mxf_path).filename() << "</AnnotationText>\n"
- << " <EditRate>" << _fps << " 1</EditRate>\n"
- << " <IntrinsicDuration>" << _length << "</IntrinsicDuration>\n"
- << " <EntryPoint>0</EntryPoint>\n"
- << " <Duration>" << _length << "</Duration>\n"
- << " <FrameRate>" << _fps << " 1</FrameRate>\n"
- << " <ScreenAspectRatio>" << _width << " " << _height << "</ScreenAspectRatio>\n"
- << " </MainPicture>\n";
+ return "MDIK";
}
+
+
+