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authorCarl Hetherington <cth@carlh.net>2012-07-15 00:14:28 +0100
committerCarl Hetherington <cth@carlh.net>2012-07-15 00:14:28 +0100
commitbb767c7e338414beee132af3e96829c1448e214b (patch)
treebec2858dcc7225a9bcc2acd8170c25508f6df6cb /src/lib/dcp_video_frame.h
parent66c9be6bdb1361e5681e094a0c8170d268aa9518 (diff)
Move things round a bit.
Diffstat (limited to 'src/lib/dcp_video_frame.h')
-rw-r--r--src/lib/dcp_video_frame.h143
1 files changed, 143 insertions, 0 deletions
diff --git a/src/lib/dcp_video_frame.h b/src/lib/dcp_video_frame.h
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+/*
+ Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Taken from code Copyright (C) 2010-2011 Terrence Meiczinger
+
+ 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 <openjpeg.h>
+#include "util.h"
+
+/** @file src/dcp_video_frame.h
+ * @brief A single frame of video destined for a DCP.
+ */
+
+class FilmState;
+class Options;
+class Server;
+class Scaler;
+class Image;
+class Log;
+
+/** @class EncodedData
+ * @brief Container for J2K-encoded data.
+ */
+class EncodedData
+{
+public:
+ /** @param d Data (will not be freed by this class, but may be by subclasses)
+ * @param s Size of data, in bytes.
+ */
+ EncodedData (uint8_t* d, int s)
+ : _data (d)
+ , _size (s)
+ {}
+
+ virtual ~EncodedData () {}
+
+ void send (int);
+ void write (boost::shared_ptr<const Options>, int);
+
+#ifdef DEBUG_HASH
+ void hash (std::string) const;
+#endif
+
+ /** @return data */
+ uint8_t* data () const {
+ return _data;
+ }
+
+ /** @return data size, in bytes */
+ int size () const {
+ return _size;
+ }
+
+protected:
+ uint8_t* _data; ///< data
+ int _size; ///< data size in bytes
+};
+
+/** @class LocallyEncodedData
+ * @brief EncodedData that was encoded locally; this class
+ * just keeps a pointer to the data, but does no memory
+ * management.
+ */
+class LocallyEncodedData : public EncodedData
+{
+public:
+ /** @param d Data (which will not be freed by this class)
+ * @param s Size of data, in bytes.
+ */
+ LocallyEncodedData (uint8_t* d, int s)
+ : EncodedData (d, s)
+ {}
+};
+
+/** @class RemotelyEncodedData
+ * @brief EncodedData that is being read from a remote server;
+ * this class allocates and manages memory for the data.
+ */
+class RemotelyEncodedData : public EncodedData
+{
+public:
+ RemotelyEncodedData (int s);
+ ~RemotelyEncodedData ();
+};
+
+/** @class DCPVideoFrame
+ * @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.
+ */
+class DCPVideoFrame
+{
+public:
+ DCPVideoFrame (boost::shared_ptr<Image>, Size, int, Scaler const *, int, float, std::string, int, int, Log *);
+ virtual ~DCPVideoFrame ();
+
+ boost::shared_ptr<EncodedData> encode_locally ();
+ boost::shared_ptr<EncodedData> encode_remotely (Server const *);
+
+ int frame () const {
+ return _frame;
+ }
+
+private:
+ void create_openjpeg_container ();
+ void write_encoded (boost::shared_ptr<const Options>, uint8_t *, int);
+
+ boost::shared_ptr<Image> _input; ///< the input image
+ Size _out_size; ///< the required size of the output, in pixels
+ int _padding;
+ Scaler const * _scaler; ///< scaler to use
+ int _frame; ///< frame index within the Film
+ int _frames_per_second; ///< Frames per second that we will use for the DCP (rounded)
+ std::string _post_process; ///< FFmpeg post-processing string to use
+ int _colour_lut_index; ///< Colour look-up table to use (see Config::colour_lut_index ())
+ int _j2k_bandwidth; ///< J2K bandwidth to use (see Config::j2k_bandwidth ())
+
+ Log* _log; ///< log
+
+ opj_image_cmptparm_t _cmptparm[3]; ///< libopenjpeg's opj_image_cmptparm_t
+ opj_image* _image; ///< libopenjpeg's image container
+ opj_cparameters_t* _parameters; ///< libopenjpeg's parameters
+ opj_cinfo_t* _cinfo; ///< libopenjpeg's opj_cinfo_t
+ opj_cio_t* _cio; ///< libopenjpeg's opj_cio_t
+};