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Diffstat (limited to 'src/lib/j2k_image_proxy.cc')
| -rw-r--r-- | src/lib/j2k_image_proxy.cc | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/src/lib/j2k_image_proxy.cc b/src/lib/j2k_image_proxy.cc deleted file mode 100644 index 023723c8b..000000000 --- a/src/lib/j2k_image_proxy.cc +++ /dev/null @@ -1,246 +0,0 @@ -/* - Copyright (C) 2014-2021 Carl Hetherington <cth@carlh.net> - - This file is part of DCP-o-matic. - - DCP-o-matic 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. - - DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>. - -*/ - - -#include "dcpomatic_assert.h" -#include "dcpomatic_socket.h" -#include "image.h" -#include "j2k_image_proxy.h" -#include <dcp/colour_conversion.h> -#include <dcp/j2k_transcode.h> -#include <dcp/mono_j2k_picture_frame.h> -#include <dcp/openjpeg_image.h> -#include <dcp/raw_convert.h> -#include <dcp/rgb_xyz.h> -#include <dcp/stereo_j2k_picture_frame.h> -#include <dcp/warnings.h> -#include <libcxml/cxml.h> -LIBDCP_DISABLE_WARNINGS -#include <libxml++/libxml++.h> -LIBDCP_ENABLE_WARNINGS -#include <iostream> - -#include "i18n.h" - - -using std::cout; -using std::dynamic_pointer_cast; -using std::make_shared; -using std::max; -using std::shared_ptr; -using std::string; -using boost::optional; -using dcp::ArrayData; -using dcp::raw_convert; - - -/** Construct a J2KImageProxy from a JPEG2000 file */ -J2KImageProxy::J2KImageProxy (boost::filesystem::path path, dcp::Size size, AVPixelFormat pixel_format) - : _data (new dcp::ArrayData(path)) - , _size (size) - , _pixel_format (pixel_format) - , _error (false) -{ - /* ::image assumes 16bpp */ - DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE); -} - - -J2KImageProxy::J2KImageProxy ( - shared_ptr<const dcp::MonoJ2KPictureFrame> frame, - dcp::Size size, - AVPixelFormat pixel_format, - optional<int> forced_reduction - ) - : _data (frame) - , _size (size) - , _pixel_format (pixel_format) - , _forced_reduction (forced_reduction) - , _error (false) -{ - /* ::image assumes 16bpp */ - DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE); -} - - -J2KImageProxy::J2KImageProxy ( - shared_ptr<const dcp::StereoJ2KPictureFrame> frame, - dcp::Size size, - dcp::Eye eye, - AVPixelFormat pixel_format, - optional<int> forced_reduction - ) - : _data (eye == dcp::Eye::LEFT ? frame->left() : frame->right()) - , _size (size) - , _eye (eye) - , _pixel_format (pixel_format) - , _forced_reduction (forced_reduction) - , _error (false) -{ - /* ::image assumes 16bpp */ - DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE); -} - - -J2KImageProxy::J2KImageProxy (shared_ptr<cxml::Node> xml, shared_ptr<Socket> socket) - : _error (false) -{ - _size = dcp::Size (xml->number_child<int>("Width"), xml->number_child<int>("Height")); - if (xml->optional_number_child<int>("Eye")) { - _eye = static_cast<dcp::Eye>(xml->number_child<int>("Eye")); - } - auto data = make_shared<ArrayData>(xml->number_child<int>("Size")); - /* This only matters when we are using J2KImageProxy for the preview, which - will never use this constructor (which is only used for passing data to - encode servers). So we can put anything in here. It's a bit of a hack. - */ - _pixel_format = AV_PIX_FMT_XYZ12LE; - socket->read (data->data(), data->size()); - _data = data; -} - - -int -J2KImageProxy::prepare (Image::Alignment alignment, optional<dcp::Size> target_size) const -{ - boost::mutex::scoped_lock lm (_mutex); - - if (_image && target_size == _target_size) { - DCPOMATIC_ASSERT (_reduce); - return *_reduce; - } - - int reduce = 0; - - if (_forced_reduction) { - reduce = *_forced_reduction; - } else { - while (target_size && (_size.width / pow(2, reduce)) > target_size->width && (_size.height / pow(2, reduce)) > target_size->height) { - ++reduce; - } - - --reduce; - reduce = max (0, reduce); - } - - try { - /* XXX: should check that potentially trashing _data here doesn't matter */ - auto decompressed = dcp::decompress_j2k (const_cast<uint8_t*>(_data->data()), _data->size(), reduce); - _image = make_shared<Image>(_pixel_format, decompressed->size(), alignment); - - int const shift = 16 - decompressed->precision (0); - - /* Copy data in whatever format (sRGB or XYZ) into our Image; I'm assuming - the data is 12-bit either way. - */ - - int const width = decompressed->size().width; - - int p = 0; - int* decomp_0 = decompressed->data (0); - int* decomp_1 = decompressed->data (1); - int* decomp_2 = decompressed->data (2); - for (int y = 0; y < decompressed->size().height; ++y) { - auto q = reinterpret_cast<uint16_t *>(_image->data()[0] + y * _image->stride()[0]); - for (int x = 0; x < width; ++x) { - *q++ = decomp_0[p] << shift; - *q++ = decomp_1[p] << shift; - *q++ = decomp_2[p] << shift; - ++p; - } - } - } catch (dcp::J2KDecompressionError& e) { - _image = make_shared<Image>(_pixel_format, _size, alignment); - _image->make_black (); - _error = true; - } - - _target_size = target_size; - _reduce = reduce; - - return reduce; -} - - -ImageProxy::Result -J2KImageProxy::image (Image::Alignment alignment, optional<dcp::Size> target_size) const -{ - int const r = prepare (alignment, target_size); - - /* I think this is safe without a lock on mutex. _image is guaranteed to be - set up when prepare() has happened. - */ - return Result (_image, r, _error); -} - - -void -J2KImageProxy::add_metadata(xmlpp::Element* element) const -{ - cxml::add_text_child(element, "Type", N_("J2K")); - cxml::add_text_child(element, "Width", raw_convert<string>(_size.width)); - cxml::add_text_child(element, "Height", raw_convert<string>(_size.height)); - if (_eye) { - cxml::add_text_child(element, "Eye", raw_convert<string>(static_cast<int>(_eye.get()))); - } - cxml::add_text_child(element, "Size", raw_convert<string>(_data->size())); -} - - -void -J2KImageProxy::write_to_socket (shared_ptr<Socket> socket) const -{ - socket->write (_data->data(), _data->size()); -} - - -bool -J2KImageProxy::same (shared_ptr<const ImageProxy> other) const -{ - auto jp = dynamic_pointer_cast<const J2KImageProxy>(other); - if (!jp) { - return false; - } - - return *_data == *jp->_data; -} - - -J2KImageProxy::J2KImageProxy (ArrayData data, dcp::Size size, AVPixelFormat pixel_format) - : _data (new ArrayData(data)) - , _size (size) - , _pixel_format (pixel_format) - , _error (false) -{ - /* ::image assumes 16bpp */ - DCPOMATIC_ASSERT (_pixel_format == AV_PIX_FMT_RGB48 || _pixel_format == AV_PIX_FMT_XYZ12LE); -} - - -size_t -J2KImageProxy::memory_used () const -{ - size_t m = _data->size(); - if (_image) { - /* 3 components, 16-bits per pixel */ - m += 3 * 2 * _image->size().width * _image->size().height; - } - return m; -} |