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Diffstat (limited to 'src/mono_picture_mxf.cc')
| -rw-r--r-- | src/mono_picture_mxf.cc | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/mono_picture_mxf.cc b/src/mono_picture_mxf.cc new file mode 100644 index 00000000..30973e5a --- /dev/null +++ b/src/mono_picture_mxf.cc @@ -0,0 +1,146 @@ +/* + 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 + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + +*/ + +#include "mono_picture_mxf.h" +#include "mono_picture_mxf_writer.h" +#include "AS_DCP.h" +#include "KM_fileio.h" +#include "exceptions.h" +#include "mono_picture_frame.h" + +using std::string; +using std::vector; +using boost::shared_ptr; +using boost::dynamic_pointer_cast; +using boost::lexical_cast; +using namespace dcp; + +MonoPictureMXF::MonoPictureMXF (boost::filesystem::path directory, boost::filesystem::path mxf_name) + : PictureMXF (directory, mxf_name) +{ + +} + +void +MonoPictureMXF::read () +{ + ASDCP::JP2K::MXFReader reader; + Kumu::Result_t r = reader.OpenRead (path().string().c_str()); + if (ASDCP_FAILURE (r)) { + boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string(), r)); + } + + ASDCP::JP2K::PictureDescriptor desc; + if (ASDCP_FAILURE (reader.FillPictureDescriptor (desc))) { + boost::throw_exception (DCPReadError ("could not read video MXF information")); + } + + _size.width = desc.StoredWidth; + _size.height = desc.StoredHeight; + _edit_rate = desc.EditRate.Numerator; + assert (desc.EditRate.Denominator == 1); + _intrinsic_duration = desc.ContainerDuration; +} + +boost::filesystem::path +MonoPictureMXF::path_from_list (int f, vector<boost::filesystem::path> const & files) const +{ + return files[f]; +} + +shared_ptr<const MonoPictureFrame> +MonoPictureMXF::get_frame (int n) const +{ + return shared_ptr<const MonoPictureFrame> (new MonoPictureFrame (path(), n, _decryption_context)); +} + +bool +MonoPictureMXF::equals (shared_ptr<const ContentAsset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const +{ + if (!MXF::equals (other, opt, note)) { + return false; + } + + ASDCP::JP2K::MXFReader reader_A; + Kumu::Result_t r = reader_A.OpenRead (path().string().c_str()); + if (ASDCP_FAILURE (r)) { + boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string(), r)); + } + + ASDCP::JP2K::MXFReader reader_B; + r = reader_B.OpenRead (other->path().string().c_str()); + if (ASDCP_FAILURE (r)) { + boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string(), r)); + } + + ASDCP::JP2K::PictureDescriptor desc_A; + if (ASDCP_FAILURE (reader_A.FillPictureDescriptor (desc_A))) { + boost::throw_exception (DCPReadError ("could not read video MXF information")); + } + ASDCP::JP2K::PictureDescriptor desc_B; + if (ASDCP_FAILURE (reader_B.FillPictureDescriptor (desc_B))) { + boost::throw_exception (DCPReadError ("could not read video MXF information")); + } + + if (!descriptor_equals (desc_A, desc_B, note)) { + return false; + } + + shared_ptr<const MonoPictureMXF> other_picture = dynamic_pointer_cast<const MonoPictureMXF> (other); + assert (other_picture); + + for (int i = 0; i < _intrinsic_duration; ++i) { + if (i >= other_picture->intrinsic_duration()) { + return false; + } + + note (PROGRESS, "Comparing video frame " + lexical_cast<string> (i) + " of " + lexical_cast<string> (_intrinsic_duration)); + shared_ptr<const MonoPictureFrame> frame_A = get_frame (i); + shared_ptr<const MonoPictureFrame> frame_B = other_picture->get_frame (i); + + if (!frame_buffer_equals ( + i, opt, note, + frame_A->j2k_data(), frame_A->j2k_size(), + frame_B->j2k_data(), frame_B->j2k_size() + )) { + return false; + } + } + + return true; +} + +shared_ptr<PictureMXFWriter> +MonoPictureMXF::start_write (bool overwrite) +{ + /* XXX: can't we use shared_ptr here? */ + return shared_ptr<MonoPictureMXFWriter> (new MonoPictureMXFWriter (this, overwrite)); +} + +string +MonoPictureMXF::cpl_node_name () const +{ + return "MainPicture"; +} + +int +MonoPictureMXF::edit_rate_factor () const +{ + return 1; +} |