diff options
Diffstat (limited to 'src/picture_asset_writer_common.cc')
| -rw-r--r-- | src/picture_asset_writer_common.cc | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/picture_asset_writer_common.cc b/src/picture_asset_writer_common.cc new file mode 100644 index 00000000..b463cb4a --- /dev/null +++ b/src/picture_asset_writer_common.cc @@ -0,0 +1,64 @@ +/* + Copyright (C) 2012-2014 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. + +*/ + +using boost::shared_ptr; + +struct ASDCPStateBase +{ + ASDCPStateBase () + : frame_buffer (4 * Kumu::Megabyte) + {} + + ASDCP::JP2K::CodestreamParser j2k_parser; + ASDCP::JP2K::FrameBuffer frame_buffer; + ASDCP::WriterInfo writer_info; + ASDCP::JP2K::PictureDescriptor picture_descriptor; +}; + +template <class P, class Q> +void dcp::start (PictureAssetWriter* writer, shared_ptr<P> state, Standard standard, Q* mxf, uint8_t* data, int size) +{ + mxf->set_file (writer->_file); + + if (ASDCP_FAILURE (state->j2k_parser.OpenReadFrame (data, size, state->frame_buffer))) { + boost::throw_exception (MiscError ("could not parse J2K frame")); + } + + state->j2k_parser.FillPictureDescriptor (state->picture_descriptor); + state->picture_descriptor.EditRate = ASDCP::Rational (mxf->edit_rate().numerator, mxf->edit_rate().denominator); + + mxf->set_size (Size (state->picture_descriptor.StoredWidth, state->picture_descriptor.StoredHeight)); + mxf->set_screen_aspect_ratio (Fraction (state->picture_descriptor.AspectRatio.Numerator, state->picture_descriptor.AspectRatio.Denominator)); + + mxf->fill_writer_info (&state->writer_info, mxf->id(), standard); + + Kumu::Result_t r = state->mxf_writer.OpenWrite ( + mxf->file().string().c_str(), + state->writer_info, + state->picture_descriptor, + 16384, + writer->_overwrite + ); + + if (ASDCP_FAILURE (r)) { + boost::throw_exception (MXFFileError ("could not open MXF file for writing", mxf->file().string(), r)); + } + + writer->_started = true; +} |