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Diffstat (limited to 'libdvdnav/dvdnav_events.h')
| -rw-r--r-- | libdvdnav/dvdnav_events.h | 241 |
1 files changed, 241 insertions, 0 deletions
diff --git a/libdvdnav/dvdnav_events.h b/libdvdnav/dvdnav_events.h new file mode 100644 index 0000000..1623277 --- /dev/null +++ b/libdvdnav/dvdnav_events.h @@ -0,0 +1,241 @@ +/* + * Copyright (C) 2001 Rich Wareham <richwareham@users.sourceforge.net> + * + * This file is part of libdvdnav, a DVD navigation library. + * + * libdvdnav 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. + * + * libdvdnav 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + * + * $Id: dvdnav_events.h,v 1.11 2003/04/07 18:10:48 mroi Exp $ + * + */ + +/* + * This header defines events and event types + */ + +#ifndef DVDNAV_EVENTS_H_INCLUDED +#define DVDNAV_EVENTS_H_INCLUDED + +#include "common.h" + +/* + * DVDNAV_BLOCK_OK + * + * A regular data block from the DVD has been returned. + * This one should be demuxed and decoded for playback. + */ +#define DVDNAV_BLOCK_OK 0 + + +/* + * DVDNAV_NOP + * + * Just ignore this. + */ +#define DVDNAV_NOP 1 + + +/* + * DVDNAV_STILL_FRAME + * + * We have reached a still frame. The player application should wait + * the amount of time specified by the still's length while still handling + * user input to make menus and other interactive stills work. + * The last delivered frame should be kept showing. + * Once the still has timed out, call dvdnav_skip_still(). + * A length of 0xff means an infinite still which has to be skipped + * indirectly by some user interaction. + */ +#define DVDNAV_STILL_FRAME 2 + +typedef struct { + /* The length (in seconds) the still frame should be displayed for, + * or 0xff if infinite. */ + int length; +} dvdnav_still_event_t; + + +/* + * DVDNAV_SPU_STREAM_CHANGE + * + * Inform the SPU decoding/overlaying engine to switch SPU channels. + */ +#define DVDNAV_SPU_STREAM_CHANGE 3 + +typedef struct { + /* The physical (MPEG) stream number for widescreen SPU display. + * Use this, if you blend the SPU on an anamorphic image before + * unsqueezing it. */ + int physical_wide; + + /* The physical (MPEG) stream number for letterboxed display. + * Use this, if you blend the SPU on an anamorphic image after + * unsqueezing it. */ + int physical_letterbox; + + /* The physical (MPEG) stream number for pan&scan display. + * Use this, if you blend the SPU on an anamorphic image after + * unsqueezing it the pan&scan way. */ + int physical_pan_scan; + + /* The logical (DVD) stream number. */ + int logical; +} dvdnav_spu_stream_change_event_t; + + +/* + * DVDNAV_AUDIO_STREAM_CHANGE + * + * Inform the audio decoder to switch channels. + */ +#define DVDNAV_AUDIO_STREAM_CHANGE 4 + +typedef struct { + /* The physical (MPEG) stream number. */ + int physical; + + /* The logical (DVD) stream number. */ + int logical; +} dvdnav_audio_stream_change_event_t; + + +/* + * DVDNAV_VTS_CHANGE + * + * Some status information like video aspect and video scale permissions do + * not change inside a VTS. Therefore this event can be used to query such + * information only when necessary and update the decoding/displaying + * accordingly. + */ +#define DVDNAV_VTS_CHANGE 5 + +typedef struct { + int old_vtsN; /* the old VTS number */ + dvd_read_domain_t old_domain; /* the old domain */ + int new_vtsN; /* the new VTS number */ + dvd_read_domain_t new_domain; /* the new domain */ +} dvdnav_vts_change_event_t; + + +/* + * DVDNAV_CELL_CHANGE + * + * Some status information like the current Title and Part numbers do not + * change inside a cell. Therefore this event can be used to query such + * information only when necessary and update the decoding/displaying + * accordingly. + * Some useful information for accurate time display is also reported + * together with this event. + */ +#define DVDNAV_CELL_CHANGE 6 + +typedef struct { + int cellN; /* the new cell number */ + int pgN; /* the current program number */ + int64_t cell_length; /* the length of the current cell in PTS ticks */ + int64_t pg_length; /* the length of the current program in PTS ticks */ + int64_t pgc_length; /* the length of the current program chain in PTS ticks */ + int64_t cell_start; /* the start time of the current cell relatively to the PGC in PTS ticks */ + int64_t pg_start; /* the start time of the current PG relatively to the PGC in PTS ticks */ +} dvdnav_cell_change_event_t; + + +/* + * DVDNAV_NAV_PACKET + * + * NAV packets are useful for various purposes. They define the button + * highlight areas and VM commands of DVD menus, so they should in any + * case be sent to the SPU decoder/overlaying engine for the menus to work. + * NAV packets also provide a way to detect PTS discontinuities, because + * they carry the start and end PTS values for the current VOBU. + * (pci.vobu_s_ptm and pci.vobu_e_ptm) Whenever the start PTS of the + * current NAV does not match the end PTS of the previous NAV, a PTS + * discontinuity has occured. + * NAV packets can also be used for time display, because they are + * timestamped relatively to the current Cell. + */ +#define DVDNAV_NAV_PACKET 7 + + +/* + * DVDNAV_STOP + * + * Applications should end playback here. A subsequent dvdnav_get_next_block() + * call will restart the VM from the beginning of the DVD. + */ +#define DVDNAV_STOP 8 + + +/* + * DVDNAV_HIGHLIGHT + * + * The current button highlight changed. Inform the overlaying engine to + * highlight a different button. Please note, that at the moment only mode 1 + * highlights are reported this way. That means, when the button highlight + * has been moved around by some function call, you will receive an event + * telling you the new button. But when a button gets activated, you have + * to handle the mode 2 highlighting (that is some different colour the + * button turns to on activation) in your application. + */ +#define DVDNAV_HIGHLIGHT 9 + +typedef struct { + /* highlight mode: 0 - hide, 1 - show, 2 - activate, currently always 1 */ + int display; + + /* FIXME: these fields are currently not set */ + uint32_t palette; /* The CLUT entries for the highlight palette + (4-bits per entry -> 4 entries) */ + uint16_t sx,sy,ex,ey; /* The start/end x,y positions */ + uint32_t pts; /* Highlight PTS to match with SPU */ + + /* button number for the SPU decoder/overlaying engine */ + uint32_t buttonN; +} dvdnav_highlight_event_t; + + +/* + * DVDNAV_SPU_CLUT_CHANGE + * + * Inform the SPU decoder/overlaying engine to update its colour lookup table. + * The CLUT is given as 16 uint32_t's in the buffer. + */ +#define DVDNAV_SPU_CLUT_CHANGE 10 + + +/* + * DVDNAV_HOP_CHANNEL + * + * A non-seamless operation has been performed. Applications can drop all + * their internal fifo's content, which will speed up the response. + */ +#define DVDNAV_HOP_CHANNEL 12 + + +/* + * DVDNAV_WAIT + * + * We have reached a point in DVD playback, where timing is critical. + * Player application with internal fifos can introduce state + * inconsistencies, because libdvdnav is always the fifo's length + * ahead in the stream compared to what the application sees. + * Such applications should wait until their fifos are empty + * when they receive this type of event. + * Once this is achieved, call dvdnav_skip_wait(). + */ +#define DVDNAV_WAIT 13 + + +#endif /* DVDNAV_EVENTS_H_INCLUDED */ |