diff options
| author | Carl Hetherington <cth@carlh.net> | 2012-07-15 00:14:28 +0100 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2012-07-15 00:14:28 +0100 |
| commit | bb767c7e338414beee132af3e96829c1448e214b (patch) | |
| tree | bec2858dcc7225a9bcc2acd8170c25508f6df6cb /src/lib/dcp_video_frame.h | |
| parent | 66c9be6bdb1361e5681e094a0c8170d268aa9518 (diff) | |
Move things round a bit.
Diffstat (limited to 'src/lib/dcp_video_frame.h')
| -rw-r--r-- | src/lib/dcp_video_frame.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/src/lib/dcp_video_frame.h b/src/lib/dcp_video_frame.h new file mode 100644 index 000000000..26b44ad43 --- /dev/null +++ b/src/lib/dcp_video_frame.h @@ -0,0 +1,143 @@ +/* + 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 +}; |
