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/*
Copyright (C) 2014-2015 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 "j2k_image_proxy.h"
#include "dcpomatic_socket.h"
#include "image.h"
#include "raw_convert.h"
#include <dcp/openjpeg_image.h>
#include <dcp/mono_picture_frame.h>
#include <dcp/stereo_picture_frame.h>
#include <dcp/colour_conversion.h>
#include <dcp/rgb_xyz.h>
#include <dcp/j2k.h>
#include <libcxml/cxml.h>
#include <libxml++/libxml++.h>
#include <iostream>
#include "i18n.h"
using std::string;
using std::cout;
using boost::shared_ptr;
using boost::optional;
using boost::dynamic_pointer_cast;
using dcp::Data;
/** Construct a J2KImageProxy from a JPEG2000 file */
J2KImageProxy::J2KImageProxy (boost::filesystem::path path, dcp::Size size)
: _data (path)
, _size (size)
{
}
J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::MonoPictureFrame> frame, dcp::Size size)
: _data (frame->j2k_size ())
, _size (size)
{
memcpy (_data.data().get(), frame->j2k_data(), _data.size ());
}
J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::StereoPictureFrame> frame, dcp::Size size, dcp::Eye eye)
: _size (size)
, _eye (eye)
{
switch (eye) {
case dcp::EYE_LEFT:
_data = Data (frame->left_j2k_size ());
memcpy (_data.data().get(), frame->left_j2k_data(), _data.size ());
break;
case dcp::EYE_RIGHT:
_data = Data (frame->right_j2k_size ());
memcpy (_data.data().get(), frame->right_j2k_data(), _data.size ());
break;
}
}
J2KImageProxy::J2KImageProxy (shared_ptr<cxml::Node> xml, shared_ptr<Socket> socket)
{
_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"));
}
_data = Data (xml->number_child<int> ("Size"));
socket->read (_data.data().get (), _data.size ());
}
void
J2KImageProxy::ensure_j2k () const
{
if (!_j2k) {
_j2k = dcp::decompress_j2k (const_cast<uint8_t*> (_data.data().get()), _data.size (), 0);
}
}
shared_ptr<Image>
J2KImageProxy::image (optional<dcp::NoteHandler>) const
{
ensure_j2k ();
if (_j2k->precision(0) < 12) {
int const shift = 12 - _j2k->precision (0);
for (int c = 0; c < 3; ++c) {
int* p = _j2k->data (c);
for (int y = 0; y < _j2k->size().height; ++y) {
for (int x = 0; x < _j2k->size().width; ++x) {
*p++ <<= shift;
}
}
}
}
shared_ptr<Image> image (new Image (pixel_format(), _size, true));
/* Copy data in whatever format (sRGB or XYZ) into our Image; I'm assuming
the data is 12-bit either way.
*/
int p = 0;
for (int y = 0; y < _j2k->size().height; ++y) {
uint16_t* q = (uint16_t *) (image->data()[0] + y * image->stride()[0]);
for (int x = 0; x < _j2k->size().width; ++x) {
for (int c = 0; c < 3; ++c) {
*q++ = _j2k->data(c)[p] << 4;
}
++p;
}
}
return image;
}
void
J2KImageProxy::add_metadata (xmlpp::Node* node) const
{
node->add_child("Type")->add_child_text (N_("J2K"));
node->add_child("Width")->add_child_text (raw_convert<string> (_size.width));
node->add_child("Height")->add_child_text (raw_convert<string> (_size.height));
if (_eye) {
node->add_child("Eye")->add_child_text (raw_convert<string> (_eye.get ()));
}
node->add_child("Size")->add_child_text (raw_convert<string> (_data.size ()));
}
void
J2KImageProxy::send_binary (shared_ptr<Socket> socket) const
{
socket->write (_data.data().get(), _data.size());
}
bool
J2KImageProxy::same (shared_ptr<const ImageProxy> other) const
{
shared_ptr<const J2KImageProxy> jp = dynamic_pointer_cast<const J2KImageProxy> (other);
if (!jp) {
return false;
}
if (_data.size() != jp->_data.size()) {
return false;
}
return memcmp (_data.data().get(), jp->_data.data().get(), _data.size()) == 0;
}
AVPixelFormat
J2KImageProxy::pixel_format () const
{
ensure_j2k ();
if (_j2k->srgb ()) {
return AV_PIX_FMT_RGB48LE;
}
return AV_PIX_FMT_XYZ12LE;
}
J2KImageProxy::J2KImageProxy (Data data, dcp::Size size)
: _data (data)
, _size (size)
{
}
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