diff options
| author | Carl Hetherington <cth@carlh.net> | 2013-02-08 12:38:04 +0000 |
|---|---|---|
| committer | Carl Hetherington <cth@carlh.net> | 2013-02-08 12:38:04 +0000 |
| commit | bfd87f274b440b3c10bde8e6cdc45bedbadd9a9b (patch) | |
| tree | edee073aaf95d99cfb6f69c49eb42c7bc7b8dd0e /src/lib | |
| parent | c188b321ccda7972021b64017a3655be5f19f21e (diff) | |
Some comments.
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/writer.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/lib/writer.h b/src/lib/writer.h index ba989b022..cee20acb9 100644 --- a/src/lib/writer.h +++ b/src/lib/writer.h @@ -37,8 +37,14 @@ struct QueueItem { public: enum Type { + /** a normal frame with some JPEG200 data */ FULL, + /** a frame whose data already exists in the MXF, + and we fake-write it; i.e. we update the writer's + state but we use the data that is already on disk. + */ FAKE, + /** this is a repeat of the last frame to be written */ REPEAT } type; @@ -71,22 +77,41 @@ private: void thread (); void check_existing_picture_mxf (); + /** our Film */ boost::shared_ptr<Film> _film; + /** the first frame index that does not already exist in our MXF */ int _first_nonexistant_frame; + /** our thread, or 0 */ boost::thread* _thread; + /** true if our thread should finish */ bool _finish; + /** queue of things to write to disk */ std::list<QueueItem> _queue; + /** number of FULL frames whose JPEG200 data is currently held in RAM */ int _queued_full_in_memory; + /** mutex for thread state */ mutable boost::mutex _mutex; + /** condition to manage thread wakeups */ boost::condition _condition; + /** the data of the last written frame, or 0 if there isn't one */ boost::shared_ptr<const EncodedData> _last_written; + /** the index of the last written frame */ int _last_written_frame; + /** maximum number of frames to hold in memory, for when we are managing + ordering + */ static const int _maximum_frames_in_memory; + /** number of FULL written frames */ int _full_written; + /** number of FAKE written frames */ int _fake_written; + /** number of REPEAT written frames */ int _repeat_written; + /** number of frames pushed to disk and then recovered + due to the limit of frames to be held in memory. + */ int _pushed_to_disk; boost::shared_ptr<libdcp::MonoPictureAsset> _picture_asset; |
