/*
Copyright (C) 2014-2015 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ 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.
- This program is distributed in the hope that it will be useful,
+ 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "j2k_image_proxy.h"
#include "dcpomatic_socket.h"
#include "image.h"
-#include "raw_convert.h"
+#include <dcp/raw_convert.h>
#include <dcp/openjpeg_image.h>
#include <dcp/mono_picture_frame.h>
#include <dcp/stereo_picture_frame.h>
#include <dcp/rgb_xyz.h>
#include <dcp/j2k.h>
#include <libcxml/cxml.h>
-#include <openjpeg.h>
#include <libxml++/libxml++.h>
+#include <Magick++.h>
#include <iostream>
#include "i18n.h"
using std::string;
using std::cout;
+using std::max;
using boost::shared_ptr;
using boost::optional;
using boost::dynamic_pointer_cast;
using dcp::Data;
+using dcp::raw_convert;
/** Construct a J2KImageProxy from a JPEG2000 file */
-J2KImageProxy::J2KImageProxy (boost::filesystem::path path, dcp::Size size)
+J2KImageProxy::J2KImageProxy (boost::filesystem::path path, dcp::Size size, AVPixelFormat pixel_format)
: _data (path)
, _size (size)
+ , _pixel_format (pixel_format)
{
}
-J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::MonoPictureFrame> frame, dcp::Size size)
+J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::MonoPictureFrame> frame, dcp::Size size, AVPixelFormat pixel_format)
: _data (frame->j2k_size ())
, _size (size)
+ , _pixel_format (pixel_format)
{
memcpy (_data.data().get(), frame->j2k_data(), _data.size ());
}
-J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::StereoPictureFrame> frame, dcp::Size size, dcp::Eye eye)
+J2KImageProxy::J2KImageProxy (shared_ptr<const dcp::StereoPictureFrame> frame, dcp::Size size, dcp::Eye eye, AVPixelFormat pixel_format)
: _size (size)
, _eye (eye)
+ , _pixel_format (pixel_format)
{
switch (eye) {
case dcp::EYE_LEFT:
_eye = static_cast<dcp::Eye> (xml->number_child<int> ("Eye"));
}
_data = Data (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().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
+J2KImageProxy::image (optional<dcp::NoteHandler>, optional<dcp::Size> target_size) const
{
- ensure_j2k ();
-
- if (_j2k->opj_image()->comps[0].prec < 12) {
- int const shift = 12 - _j2k->opj_image()->comps[0].prec;
- 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;
+ if (!_j2k || target_size != _j2k_target_size) {
+ int reduce = 0;
+
+ 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);
+ _j2k = dcp::decompress_j2k (const_cast<uint8_t*> (_data.data().get()), _data.size (), reduce);
+
+ 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;
+ }
}
}
}
+
+ _j2k_target_size = target_size;
}
- shared_ptr<Image> image (new Image (pixel_format(), _size, true));
+ shared_ptr<Image> image (new Image (_pixel_format, _j2k->size(), true));
/* Copy data in whatever format (sRGB or XYZ) into our Image; I'm assuming
the data is 12-bit either way.
*/
+ int const width = _j2k->size().width;
+
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 x = 0; x < width; ++x) {
for (int c = 0; c < 3; ++c) {
*q++ = _j2k->data(c)[p] << 4;
}
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("Eye")->add_child_text (raw_convert<string> (static_cast<int> (_eye.get ())));
}
node->add_child("Size")->add_child_text (raw_convert<string> (_data.size ()));
}
return memcmp (_data.data().get(), jp->_data.data().get(), _data.size()) == 0;
}
-AVPixelFormat
-J2KImageProxy::pixel_format () const
-{
- ensure_j2k ();
-
- if (_j2k->opj_image()->color_space == CLRSPC_SRGB) {
- return AV_PIX_FMT_RGB48LE;
- }
-
- return AV_PIX_FMT_XYZ12LE;
-}
-
-J2KImageProxy::J2KImageProxy (Data data, dcp::Size size)
+J2KImageProxy::J2KImageProxy (Data data, dcp::Size size, AVPixelFormat pixel_format)
: _data (data)
, _size (size)
+ , _pixel_format (pixel_format)
{
}
projects / dcpomatic.git / blobdiff