/*
- Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2016 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/>.
*/
+/** @file src/dcp_video_frame.cc
+ * @brief A single frame of video destined for a DCP.
+ *
+ * Given an Image and some settings, this class knows how to encode
+ * the image to J2K either on the local host or on a remote server.
+ *
+ * Objects of this class are used for the queue that we keep
+ * of images that require encoding.
+ */
+
#include "dcp_video.h"
+#include "config.h"
+#include "exceptions.h"
+#include "encode_server_description.h"
+#include "dcpomatic_socket.h"
#include "image.h"
+#include "log.h"
+#include "dcpomatic_log.h"
+#include "cross.h"
+#include "player_video.h"
+#include "compose.hpp"
+#include <libcxml/cxml.h>
+#include <dcp/raw_convert.h>
+#include <dcp/openjpeg_image.h>
+#include <dcp/rgb_xyz.h>
+#include <dcp/j2k.h>
+#include <libxml++/libxml++.h>
+#include <boost/asio.hpp>
+#include <boost/thread.hpp>
+#include <stdint.h>
+#include <iomanip>
+#include <iostream>
+
+#include "i18n.h"
+using std::string;
+using std::cout;
using boost::shared_ptr;
+using dcp::Size;
+using dcp::Data;
+using dcp::raw_convert;
-/** From ContentVideo:
- * @param in Image.
- * @param eyes Eye(s) that the Image is for.
- *
- * From Content:
- * @param crop Crop to apply.
- * @param inter_size
- * @param out_size
- * @param scaler Scaler to use.
- * @param conversion Colour conversion to use.
- *
- * @param time DCP time.
+#define DCI_COEFFICENT (48.0 / 52.37)
+
+/** Construct a DCP video frame.
+ * @param frame Input frame.
+ * @param index Index of the frame within the DCP.
+ * @param bw J2K bandwidth to use (see Config::j2k_bandwidth ())
*/
DCPVideo::DCPVideo (
- shared_ptr<const Image> in,
- Eyes eyes,
- Crop crop,
- dcp::Size inter_size,
- dcp::Size out_size,
- Scaler const * scaler,
- ColourConversion conversion,
- DCPTime time
+ shared_ptr<const PlayerVideo> frame, int index, int dcp_fps, int bw, Resolution r
)
- : _in (in)
- , _eyes (eyes)
- , _crop (crop)
- , _inter_size (inter_size)
- , _out_size (out_size)
- , _scaler (scaler)
- , _conversion (conversion)
- , _time (time)
+ : _frame (frame)
+ , _index (index)
+ , _frames_per_second (dcp_fps)
+ , _j2k_bandwidth (bw)
+ , _resolution (r)
{
}
-void
-DCPVideo::set_subtitle (PositionImage s)
+DCPVideo::DCPVideo (shared_ptr<const PlayerVideo> frame, shared_ptr<const cxml::Node> node)
+ : _frame (frame)
{
- _subtitle = s;
+ _index = node->number_child<int> ("Index");
+ _frames_per_second = node->number_child<int> ("FramesPerSecond");
+ _j2k_bandwidth = node->number_child<int> ("J2KBandwidth");
+ _resolution = Resolution (node->optional_number_child<int>("Resolution").get_value_or (RESOLUTION_2K));
}
-shared_ptr<Image>
-DCPVideo::image (AVPixelFormat format, bool aligned) const
+shared_ptr<dcp::OpenJPEGImage>
+DCPVideo::convert_to_xyz (shared_ptr<const PlayerVideo> frame, dcp::NoteHandler note)
{
- shared_ptr<Image> out = _in->crop_scale_window (_crop, _inter_size, _out_size, _scaler, format, aligned);
-
- Position<int> const container_offset ((_out_size.width - _inter_size.width) / 2, (_out_size.height - _inter_size.width) / 2);
+ shared_ptr<dcp::OpenJPEGImage> xyz;
- if (_subtitle.image) {
- out->alpha_blend (_subtitle.image, _subtitle.position);
+ shared_ptr<Image> image = frame->image (bind (&PlayerVideo::keep_xyz_or_rgb, _1), true, false);
+ if (frame->colour_conversion()) {
+ xyz = dcp::rgb_to_xyz (
+ image->data()[0],
+ image->size(),
+ image->stride()[0],
+ frame->colour_conversion().get(),
+ note
+ );
+ } else {
+ xyz.reset (new dcp::OpenJPEGImage (image->data()[0], image->size(), image->stride()[0]));
}
- return out;
+ return xyz;
}
+/** J2K-encode this frame on the local host.
+ * @return Encoded data.
+ */
+Data
+DCPVideo::encode_locally ()
+{
+ Data enc = compress_j2k (
+ convert_to_xyz (_frame, boost::bind(&Log::dcp_log, dcpomatic_log.get(), _1, _2)),
+ _j2k_bandwidth,
+ _frames_per_second,
+ _frame->eyes() == EYES_LEFT || _frame->eyes() == EYES_RIGHT,
+ _resolution == RESOLUTION_4K
+ );
+
+ switch (_frame->eyes()) {
+ case EYES_BOTH:
+ LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for mono"), _index);
+ break;
+ case EYES_LEFT:
+ LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for L"), _index);
+ break;
+ case EYES_RIGHT:
+ LOG_DEBUG_ENCODE (N_("Finished locally-encoded frame %1 for R"), _index);
+ break;
+ default:
+ break;
+ }
+
+ return enc;
+}
+
+/** Send this frame to a remote server for J2K encoding, then read the result.
+ * @param serv Server to send to.
+ * @param timeout timeout in seconds.
+ * @return Encoded data.
+ */
+Data
+DCPVideo::encode_remotely (EncodeServerDescription serv, int timeout)
+{
+ boost::asio::io_service io_service;
+ boost::asio::ip::tcp::resolver resolver (io_service);
+ boost::asio::ip::tcp::resolver::query query (serv.host_name(), raw_convert<string> (ENCODE_FRAME_PORT));
+ boost::asio::ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve (query);
+
+ shared_ptr<Socket> socket (new Socket (timeout));
+
+ socket->connect (*endpoint_iterator);
+
+ /* Collect all XML metadata */
+ xmlpp::Document doc;
+ xmlpp::Element* root = doc.create_root_node ("EncodingRequest");
+ root->add_child("Version")->add_child_text (raw_convert<string> (SERVER_LINK_VERSION));
+ add_metadata (root);
+
+ LOG_DEBUG_ENCODE (N_("Sending frame %1 to remote"), _index);
+
+ {
+ Socket::WriteDigestScope ds (socket);
+
+ /* Send XML metadata */
+ string xml = doc.write_to_string ("UTF-8");
+ socket->write (xml.length() + 1);
+ socket->write ((uint8_t *) xml.c_str(), xml.length() + 1);
+
+ /* Send binary data */
+ LOG_TIMING("start-remote-send thread=%1", thread_id ());
+ _frame->write_to_socket (socket);
+ }
+
+ /* Read the response (JPEG2000-encoded data); this blocks until the data
+ is ready and sent back.
+ */
+ Socket::ReadDigestScope ds (socket);
+ LOG_TIMING("start-remote-encode thread=%1", thread_id ());
+ Data e (socket->read_uint32 ());
+ LOG_TIMING("start-remote-receive thread=%1", thread_id ());
+ socket->read (e.data().get(), e.size());
+ LOG_TIMING("finish-remote-receive thread=%1", thread_id ());
+ if (!ds.check()) {
+ throw NetworkError ("Checksums do not match");
+ }
+
+ LOG_DEBUG_ENCODE (N_("Finished remotely-encoded frame %1"), _index);
+
+ return e;
+}
+
+void
+DCPVideo::add_metadata (xmlpp::Element* el) const
+{
+ el->add_child("Index")->add_child_text (raw_convert<string> (_index));
+ el->add_child("FramesPerSecond")->add_child_text (raw_convert<string> (_frames_per_second));
+ el->add_child("J2KBandwidth")->add_child_text (raw_convert<string> (_j2k_bandwidth));
+ el->add_child("Resolution")->add_child_text (raw_convert<string> (int (_resolution)));
+ _frame->add_metadata (el);
+}
+
+Eyes
+DCPVideo::eyes () const
+{
+ return _frame->eyes ();
+}
+
+/** @return true if this DCPVideo is definitely the same as another;
+ * (apart from the frame index), false if it is probably not.
+ */
+bool
+DCPVideo::same (shared_ptr<const DCPVideo> other) const
+{
+ if (_frames_per_second != other->_frames_per_second ||
+ _j2k_bandwidth != other->_j2k_bandwidth ||
+ _resolution != other->_resolution) {
+ return false;
+ }
+
+ return _frame->same (other->_frame);
+}
projects / dcpomatic.git / blobdiff