mpv/mpvcore/mp_core.h

351 lines
12 KiB
C
Raw Normal View History

/*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_MP_CORE_H
#define MPLAYER_MP_CORE_H
#include <stdbool.h>
#include "mpvcore/options.h"
#include "audio/mixer.h"
#include "demux/demux.h"
// definitions used internally by the core player code
#define INITIALIZED_VO 1
#define INITIALIZED_AO 2
#define INITIALIZED_VOL 4
#define INITIALIZED_GETCH2 8
#define INITIALIZED_PLAYBACK 16
#define INITIALIZED_STREAM 64
#define INITIALIZED_DEMUXER 512
#define INITIALIZED_ACODEC 1024
#define INITIALIZED_VCODEC 2048
#define INITIALIZED_SUB 4096
#define INITIALIZED_ALL 0xFFFF
enum stop_play_reason {
mplayer: turn playtree into a list, and change per-file option handling Summary: - There is no playtree anymore. It's reduced to a simple list. - Options are now always global. You can still have per-file options, but these are optional and require special syntax. - The slave command pt_step has been removed, and playlist_next and playlist_prev added. (See etc/input.conf changes.) This is a user visible incompatible change, and will break slave-mode applications. - The pt_clear slave command is renamed to playlist_clear. - Playtree entries could have multiple files. This is not the case anymore, and playlist entries have always exactly one entry. Whenever something adds more than one file (like ASX playlists or dvd:// or dvdnav:// on the command line), all files are added as separate playlist entries. Note that some of the changes are quite deep and violent. Expect regressions. The playlist parsing code in particular is of low quality. I didn't try to improve it, and merely spent to least effort necessary to keep it somehow working. (Especially ASX playlist handling.) The playtree code was complicated and bloated. It was also barely used. Most users don't even know that mplayer manages the playlist as tree, or how to use it. The most obscure features was probably specifying a tree on command line (with '{' and '}' to create/close tree nodes). It filled the player code with complexity and confused users with weird slave commands like pt_up. Replace the playtree with a simple flat playlist. Playlist parsers that actually return trees are changed to append all files to the playlist pre-order. It used to be the responsibility of the playtree code to change per-file config options. Now this is done by the player core, and the playlist code is free of such details. Options are not per-file by default anymore. This was a very obscure and complicated feature that confused even experienced users. Consider the following command line: mplayer file1.mkv file2.mkv --no-audio file3.mkv This will disable the audio for file2.mkv only, because options are per-file by default. To make the option affect all files, you're supposed to put it before the first file. This is bad, because normally you don't need per-file options. They are very rarely needed, and the only reasonable use cases I can imagine are use of the encode backend (mplayer encode branch), or for debugging. The normal use case is made harder, and the feature is perceived as bug. Even worse, correct usage is hard to explain for users. Make all options global by default. The position of an option isn't significant anymore (except for options that compensate each other, consider --shuffle --no-shuffle). One other important change is that no options are reset anymore if a new file is started. If you change settings with slave mode commands, they will not be changed by playing a new file. (Exceptions include settings that are too file specific, like audio/subtitle stream selection.) There is still some need for per-file options. Debugging and encoding are use cases that profit from per-file options. Per-file profiles (as well as per-protocol and per-VO/AO options) need the implementation related mechanisms to backup and restore options when the playback file changes. Simplify the save-slot stuff, which is possible because there is no hierarchical play tree anymore. Now there's a simple backup field. Add a way to specify per-file options on command line. Example: mplayer f1.mkv -o0 --{ -o1 f2.mkv -o2 f3.mkv --} f4.mkv -o3 will have the following options per file set: f1.mkv, f4.mkv: -o0 -o3 f2.mkv, f3.mkv: -o0 -o3 -o1 -o2 The options --{ and --} start and end per-file options. All files inside the { } will be affected by the options equally (similar to how global options and multiple files are handled). When playback of a file starts, the per-file options are set according to the command line. When playback ends, the per-file options are restored to the values when playback started.
2012-07-31 19:33:26 +00:00
KEEP_PLAYING = 0, // must be 0, numeric values of others do not matter
AT_END_OF_FILE, // file has ended normally, prepare to play next
PT_NEXT_ENTRY, // prepare to play next entry in playlist
PT_CURRENT_ENTRY, // prepare to play mpctx->playlist->current
PT_STOP, // stop playback, clear playlist
PT_RESTART, // restart previous file
PT_QUIT, // stop playback, quit player
};
enum exit_reason {
EXIT_NONE,
EXIT_QUIT,
2013-08-02 08:32:38 +00:00
EXIT_PLAYED,
EXIT_ERROR,
EXIT_NOTPLAYED,
EXIT_SOMENOTPLAYED
};
struct timeline_part {
double start;
double source_start;
struct demuxer *source;
};
struct chapter {
double start;
char *name;
};
enum mp_osd_seek_info {
OSD_SEEK_INFO_BAR = 1,
OSD_SEEK_INFO_TEXT = 2,
OSD_SEEK_INFO_CHAPTER_TEXT = 4,
OSD_SEEK_INFO_EDITION = 8,
};
enum seek_type {
MPSEEK_NONE = 0,
MPSEEK_RELATIVE,
MPSEEK_ABSOLUTE,
MPSEEK_FACTOR,
};
struct track {
enum stream_type type;
// The type specific ID, also called aid (audio), sid (subs), vid (video).
// For UI purposes only; this ID doesn't have anything to do with any
// IDs coming from demuxers or container files.
int user_tid;
// Same as stream->demuxer_id. -1 if not set.
int demuxer_id;
char *title;
bool default_track;
bool attached_picture;
char *lang;
// If this track is from an external file (e.g. subtitle file).
bool is_external;
char *external_filename;
bool auto_loaded;
// If the track's stream changes with the timeline (ordered chapters).
bool under_timeline;
// NULL if not backed by a demuxer (e.g. external subtitles).
// Value can change if under_timeline==true.
struct demuxer *demuxer;
// Invariant: (!demuxer && !stream) || stream->demuxer == demuxer
struct sh_stream *stream;
// For external subtitles, which are read fully on init. Do not attempt
// to read packets from them.
bool preloaded;
};
core: add backstep support Allows stepping back one frame via the frame_back_step inout command, bound to "," by default. This uses the precise seeking facility, and a perfect frame index built on the fly. The index is built during playback and precise seeking, and contains (as of this commit) the last 100 displayed or skipped frames. This index is used to find the PTS of the previous frame, which is then used as target for a precise seek. If no PTS is found, the core attempts to do a seek before the current frame, and skip decoded frames until the current frame is reached; this will create a sufficient index and the normal backstep algorithm can be applied. This can be rather slow. The worst case for backstepping is about the same as the worst case for precise seeking if the previous frame can be deduced from the index. If not, the worst case will be twice as slow. There's also some minor danger that the index is incorrect in case framedropping is involved. For framedropping due to --framedrop, this problem is ignored (use of --framedrop is discouraged anyway). For framedropping during precise seeking (done to make it faster), we try to not add frames to the index that are produced when this can happen. I'm not sure how well that works (or if the logic is sane), and it's sure to break with some video filters. In the worst case, backstepping might silently skip frames if you backstep after a user-initiated precise seek. (Precise seeks to do indexing are not affected.) Likewise, video filters that somehow change timing of frames and do not do this in a deterministic way (i.e. if you seek to a position, frames with different timings are produced than when the position is reached during normal playback) will make backstepping silently jump to the wrong frame. Enabling/disabling filters during playback (like for example deinterlacing) will have similar bad effects.
2013-04-24 17:31:48 +00:00
enum {
MAX_NUM_VO_PTS = 100,
};
typedef struct MPContext {
struct mpv_global *global;
struct MPOpts *opts;
struct mp_log *log;
struct m_config *mconfig;
struct input_ctx *input;
struct osd_state *osd;
struct mp_osd_msg *osd_msg_stack;
char *terminal_osd_text;
int add_osd_seek_info; // bitfield of enum mp_osd_seek_info
double osd_visible; // for the osd bar only
int osd_function;
double osd_function_visible;
double osd_last_update;
mplayer: turn playtree into a list, and change per-file option handling Summary: - There is no playtree anymore. It's reduced to a simple list. - Options are now always global. You can still have per-file options, but these are optional and require special syntax. - The slave command pt_step has been removed, and playlist_next and playlist_prev added. (See etc/input.conf changes.) This is a user visible incompatible change, and will break slave-mode applications. - The pt_clear slave command is renamed to playlist_clear. - Playtree entries could have multiple files. This is not the case anymore, and playlist entries have always exactly one entry. Whenever something adds more than one file (like ASX playlists or dvd:// or dvdnav:// on the command line), all files are added as separate playlist entries. Note that some of the changes are quite deep and violent. Expect regressions. The playlist parsing code in particular is of low quality. I didn't try to improve it, and merely spent to least effort necessary to keep it somehow working. (Especially ASX playlist handling.) The playtree code was complicated and bloated. It was also barely used. Most users don't even know that mplayer manages the playlist as tree, or how to use it. The most obscure features was probably specifying a tree on command line (with '{' and '}' to create/close tree nodes). It filled the player code with complexity and confused users with weird slave commands like pt_up. Replace the playtree with a simple flat playlist. Playlist parsers that actually return trees are changed to append all files to the playlist pre-order. It used to be the responsibility of the playtree code to change per-file config options. Now this is done by the player core, and the playlist code is free of such details. Options are not per-file by default anymore. This was a very obscure and complicated feature that confused even experienced users. Consider the following command line: mplayer file1.mkv file2.mkv --no-audio file3.mkv This will disable the audio for file2.mkv only, because options are per-file by default. To make the option affect all files, you're supposed to put it before the first file. This is bad, because normally you don't need per-file options. They are very rarely needed, and the only reasonable use cases I can imagine are use of the encode backend (mplayer encode branch), or for debugging. The normal use case is made harder, and the feature is perceived as bug. Even worse, correct usage is hard to explain for users. Make all options global by default. The position of an option isn't significant anymore (except for options that compensate each other, consider --shuffle --no-shuffle). One other important change is that no options are reset anymore if a new file is started. If you change settings with slave mode commands, they will not be changed by playing a new file. (Exceptions include settings that are too file specific, like audio/subtitle stream selection.) There is still some need for per-file options. Debugging and encoding are use cases that profit from per-file options. Per-file profiles (as well as per-protocol and per-VO/AO options) need the implementation related mechanisms to backup and restore options when the playback file changes. Simplify the save-slot stuff, which is possible because there is no hierarchical play tree anymore. Now there's a simple backup field. Add a way to specify per-file options on command line. Example: mplayer f1.mkv -o0 --{ -o1 f2.mkv -o2 f3.mkv --} f4.mkv -o3 will have the following options per file set: f1.mkv, f4.mkv: -o0 -o3 f2.mkv, f3.mkv: -o0 -o3 -o1 -o2 The options --{ and --} start and end per-file options. All files inside the { } will be affected by the options equally (similar to how global options and multiple files are handled). When playback of a file starts, the per-file options are set according to the command line. When playback ends, the per-file options are restored to the values when playback started.
2012-07-31 19:33:26 +00:00
struct playlist *playlist;
2008-04-26 12:17:51 +00:00
char *filename; // currently playing file
struct mp_resolve_result *resolve_result;
enum stop_play_reason stop_play;
unsigned int initialized_flags; // which subsystems have been initialized
// Return code to use with PT_QUIT
2013-08-02 08:32:38 +00:00
enum exit_reason quit_player_rc;
int quit_custom_rc;
bool has_quit_custom_rc;
bool error_playing;
struct demuxer **sources;
int num_sources;
struct timeline_part *timeline;
int num_timeline_parts;
int timeline_part;
// NOTE: even if num_chapters==0, chapters being not NULL signifies presence
// of chapter metadata
struct chapter *chapters;
int num_chapters;
double video_offset;
struct stream *stream;
struct demuxer *demuxer;
struct track **tracks;
int num_tracks;
// Selected tracks. NULL if no track selected.
struct track *current_track[STREAM_TYPE_COUNT];
struct sh_stream *sh[STREAM_TYPE_COUNT];
struct sh_audio *sh_audio; // same as sh[STREAM_AUDIO]->audio
struct sh_video *sh_video; // same as sh[STREAM_VIDEO]->video
struct sh_sub *sh_sub; // same as sh[STREAM_SUB]->sub
// Uses: accessing metadata (consider ordered chapters case, where the main
// demuxer defines metadata), or special purpose demuxers like TV.
struct demuxer *master_demuxer;
mixer_t mixer;
struct ao *ao;
struct vo *video_out;
/* We're starting playback from scratch or after a seek. Show first
* video frame immediately and reinitialize sync. */
bool restart_playback;
/* Set if audio should be timed to start with video frame after seeking,
* not set when e.g. playing cover art */
bool sync_audio_to_video;
/* After playback restart (above) or audio stream change, adjust audio
* stream by cutting samples or adding silence at the beginning to make
* audio playback position match video position. */
bool syncing_audio;
bool hrseek_active;
bool hrseek_framedrop;
double hrseek_pts;
// AV sync: the next frame should be shown when the audio out has this
// much (in seconds) buffered data left. Increased when more data is
// written to the ao, decreased when moving to the next frame.
// In the audio-only case used as a timer since the last seek
// by the audio CPU usage meter.
double delay;
// AV sync: time until next frame should be shown
double time_frame;
// How long the last vo flip() call took. Used to adjust timing with
// the goal of making flip() calls finish (rather than start) at the
// specified time.
double last_vo_flip_duration;
// How much video timing has been changed to make it match the audio
// timeline. Used for status line information only.
double total_avsync_change;
// Total number of dropped frames that were "approved" to be dropped.
// Actual dropping depends on --framedrop and decoder internals.
int drop_frame_cnt;
// Number of frames dropped in a row.
int dropped_frames;
// A-V sync difference when last frame was displayed. Kept to display
// the same value if the status line is updated at a time where no new
// video frame is shown.
double last_av_difference;
/* timestamp of video frame currently visible on screen
* (or at least queued to be flipped by VO) */
double video_pts;
double last_seek_pts;
// As video_pts, but is not reset when seeking away. (For the very short
// period of time until a new frame is decoded and shown.)
double last_vo_pts;
// Video PTS, or audio PTS if video has ended.
double playback_pts;
core: add backstep support Allows stepping back one frame via the frame_back_step inout command, bound to "," by default. This uses the precise seeking facility, and a perfect frame index built on the fly. The index is built during playback and precise seeking, and contains (as of this commit) the last 100 displayed or skipped frames. This index is used to find the PTS of the previous frame, which is then used as target for a precise seek. If no PTS is found, the core attempts to do a seek before the current frame, and skip decoded frames until the current frame is reached; this will create a sufficient index and the normal backstep algorithm can be applied. This can be rather slow. The worst case for backstepping is about the same as the worst case for precise seeking if the previous frame can be deduced from the index. If not, the worst case will be twice as slow. There's also some minor danger that the index is incorrect in case framedropping is involved. For framedropping due to --framedrop, this problem is ignored (use of --framedrop is discouraged anyway). For framedropping during precise seeking (done to make it faster), we try to not add frames to the index that are produced when this can happen. I'm not sure how well that works (or if the logic is sane), and it's sure to break with some video filters. In the worst case, backstepping might silently skip frames if you backstep after a user-initiated precise seek. (Precise seeks to do indexing are not affected.) Likewise, video filters that somehow change timing of frames and do not do this in a deterministic way (i.e. if you seek to a position, frames with different timings are produced than when the position is reached during normal playback) will make backstepping silently jump to the wrong frame. Enabling/disabling filters during playback (like for example deinterlacing) will have similar bad effects.
2013-04-24 17:31:48 +00:00
// History of video frames timestamps that were queued in the VO
// This includes even skipped frames during hr-seek
double vo_pts_history_pts[MAX_NUM_VO_PTS];
// Whether the PTS at vo_pts_history[n] is after a seek reset
uint64_t vo_pts_history_seek[MAX_NUM_VO_PTS];
uint64_t vo_pts_history_seek_ts;
uint64_t backstep_start_seek_ts;
bool backstep_active;
double audio_delay;
double last_heartbeat;
double last_metadata_update;
double mouse_timer;
unsigned int mouse_event_ts;
int mouse_waiting_hide;
// used to prevent hanging in some error cases
double start_timestamp;
// Timestamp from the last time some timing functions read the
// current time, in (occasionally wrapping) microseconds. Used
// to turn a new time value to a delta from last time.
int64_t last_time;
// Used to communicate the parameters of a seek between parts
struct seek_params {
enum seek_type type;
double amount;
int exact; // -1 = disable, 0 = default, 1 = enable
// currently not set by commands, only used internally by seek()
int direction; // -1 = backward, 0 = default, 1 = forward
} seek;
/* Heuristic for relative chapter seeks: keep track which chapter
* the user wanted to go to, even if we aren't exactly within the
* boundaries of that chapter due to an inaccurate seek. */
int last_chapter_seek;
double last_chapter_pts;
struct ass_library *ass_library;
int last_dvb_step;
int dvbin_reopen;
bool paused;
// step this many frames, then pause
int step_frames;
// Counted down each frame, stop playback if 0 is reached. (-1 = disable)
int max_frames;
bool playing_msg_shown;
bool paused_for_cache;
// Set after showing warning about decoding being too slow for realtime
// playback rate. Used to avoid showing it multiple times.
bool drop_message_shown;
struct screenshot_ctx *screenshot_ctx;
char *track_layout_hash;
struct encode_lavc_context *encode_lavc_ctx;
} MPContext;
// should not be global
extern FILE *edl_fd;
// These appear in options list
extern int forced_subs_only;
void uninit_player(struct MPContext *mpctx, unsigned int mask);
void reinit_audio_chain(struct MPContext *mpctx);
2008-04-21 03:55:23 +00:00
double playing_audio_pts(struct MPContext *mpctx);
struct track *mp_add_subtitles(struct MPContext *mpctx, char *filename);
int reinit_video_chain(struct MPContext *mpctx);
int reinit_video_filters(struct MPContext *mpctx);
int reinit_audio_filters(struct MPContext *mpctx);
void pause_player(struct MPContext *mpctx);
void unpause_player(struct MPContext *mpctx);
core: add backstep support Allows stepping back one frame via the frame_back_step inout command, bound to "," by default. This uses the precise seeking facility, and a perfect frame index built on the fly. The index is built during playback and precise seeking, and contains (as of this commit) the last 100 displayed or skipped frames. This index is used to find the PTS of the previous frame, which is then used as target for a precise seek. If no PTS is found, the core attempts to do a seek before the current frame, and skip decoded frames until the current frame is reached; this will create a sufficient index and the normal backstep algorithm can be applied. This can be rather slow. The worst case for backstepping is about the same as the worst case for precise seeking if the previous frame can be deduced from the index. If not, the worst case will be twice as slow. There's also some minor danger that the index is incorrect in case framedropping is involved. For framedropping due to --framedrop, this problem is ignored (use of --framedrop is discouraged anyway). For framedropping during precise seeking (done to make it faster), we try to not add frames to the index that are produced when this can happen. I'm not sure how well that works (or if the logic is sane), and it's sure to break with some video filters. In the worst case, backstepping might silently skip frames if you backstep after a user-initiated precise seek. (Precise seeks to do indexing are not affected.) Likewise, video filters that somehow change timing of frames and do not do this in a deterministic way (i.e. if you seek to a position, frames with different timings are produced than when the position is reached during normal playback) will make backstepping silently jump to the wrong frame. Enabling/disabling filters during playback (like for example deinterlacing) will have similar bad effects.
2013-04-24 17:31:48 +00:00
void add_step_frame(struct MPContext *mpctx, int dir);
void queue_seek(struct MPContext *mpctx, enum seek_type type, double amount,
int exact);
bool mp_seek_chapter(struct MPContext *mpctx, int chapter);
double get_time_length(struct MPContext *mpctx);
double get_start_time(struct MPContext *mpctx);
double get_current_time(struct MPContext *mpctx);
int get_percent_pos(struct MPContext *mpctx);
double get_current_pos_ratio(struct MPContext *mpctx, bool use_range);
int get_current_chapter(struct MPContext *mpctx);
char *chapter_display_name(struct MPContext *mpctx, int chapter);
char *chapter_name(struct MPContext *mpctx, int chapter);
double chapter_start_time(struct MPContext *mpctx, int chapter);
int get_chapter_count(struct MPContext *mpctx);
void mp_switch_track(struct MPContext *mpctx, enum stream_type type,
struct track *track);
struct track *mp_track_by_tid(struct MPContext *mpctx, enum stream_type type,
int tid);
bool mp_remove_track(struct MPContext *mpctx, struct track *track);
struct playlist_entry *mp_next_file(struct MPContext *mpctx, int direction);
int mp_get_cache_percent(struct MPContext *mpctx);
void mp_write_watch_later_conf(struct MPContext *mpctx);
void mp_set_playlist_entry(struct MPContext *mpctx, struct playlist_entry *e);
struct playlist_entry *mp_resume_playlist(struct playlist *pl);
void mp_force_video_refresh(struct MPContext *mpctx);
void mp_print_version(int always);
// timeline/tl_matroska.c
void build_ordered_chapter_timeline(struct MPContext *mpctx);
EDL: add support for new EDL file format The timeline code previously added to support Matroska ordered chapters allows constructing a playback timeline from segments picked from multiple source files. Add support for a new EDL format to make this machinery available for use with file formats other than Matroska and in a manner easier to use than creating files with ordered chapters. Unlike the old -edl option which specifies an additional file with edits to apply to the video file given as the main argument, the new EDL format is used by giving only the EDL file as the file to play; that file then contains the filename(s) to use as source files where actual video segments come from. Filename paths in the EDL file are ignored. Currently the source files are only searched for in the directory of the EDL file; support for a search path option will likely be added in the future. Format of the EDL files The first line in the file must be "mplayer EDL file, version 2". The rest of the lines belong to one of these classes: 1) lines specifying source files 2) empty lines 3) lines specifying timeline segments. Lines beginning with '<' specify source files. These lines first contain an identifier used to refer to the source file later, then the filename separated by whitespace. The identifier must start with a letter. Filenames that start or end with whitespace or contain newlines are not supported. On other lines '#' characters delimit comments. Lines that contain only whitespace after comments have been removed are ignored. Timeline segments must appear in the file in chronological order. Each segment has the following information associated with it: - duration - output start time - output end time (= output start time + duration) - source id (specifies the file the content of the segment comes from) - source start time (timestamp in the source file) - source end time (= source start time + duration) The output timestamps must form a continuous timeline from 0 to the end of the last segment, such that each new segment starts from the time the previous one ends at. Source files and times may change arbitrarily between segments. The general format for lines specifying timeline segments is [output time info] source_id [source time info] source_id must be an identifier defined on a '<' line. Both the time info parts consists of zero or more of the following elements: 1) timestamp 2) -timestamp 3) +duration 4) * 5) -* , where "timestamp" and "duration" are decimal numbers (computations are done with nanosecond precision). Whitespace around "+" and "-" is optional. 1) and 2) specify start and end time of the segment on output or source side. 3) specifies duration; the semantics are the same whether this appears on output or source side. 4) and 5) are ignored on the output side (they're always implicitly assumed). On the source side 4) specifies that the segment starts where the previous segment _using this source_ ended; if there was no previous segment time 0 is used. 5) specifies that the segment ends where the next segment using this source starts. Redundant information may be omitted. It will be filled in using the following rules: - output start for first segment is 0 - two of [output start, output end, duration] imply third - two of [source start, source end, duration] imply third - output start = output end of previous segment - output end = output start of next segment - if "*", source start = source end of earlier segment - if "-*", source end = source start of a later segment As a special rule, a last zero-duration segment without a source specification may appear. This will produce no corresponding segment in the resulting timeline, but can be used as syntax to specify the end time of the timeline (with effect equal to adding -time on the previous line). Examples: ----- begin ----- mplayer EDL file, version 2 < id1 filename 0 id1 123 100 id1 456 200 id1 789 300 ----- end ----- All segments come from the source file "filename". First segment (output time 0-100) comes from time 123-223, second 456-556, third 789-889. ----- begin ----- mplayer EDL file, version 2 < f filename f 60-120 f 600-660 f 30- 90 ----- end ----- Play first seconds 60-120 from the file, then 600-660, then 30-90. ----- begin ----- mplayer EDL file, version 2 < id1 filename1 < id2 filename2 +10 id1 * +10 id2 * +10 id1 * +10 id2 * +10 id1 * +10 id2 * ----- end ----- This plays time 0-10 from filename1, then 0-10 from filename1, then 10-20 from filename1, then 10-20 from filename2, then 20-30 from filename1, then 20-30 from filename2. ----- begin ----- mplayer EDL file, version 2 < t1 filename1 < t2 filename2 t1 * +2 # segment 1 +2 t2 100 # segment 2 t1 * # segment 3 t2 *-* # segment 4 t1 3 -* # segment 5 +0.111111 t2 102.5 # segment 6 7.37 t1 5 +1 # segment 7 ----- end ----- This rather pathological example illustrates the rules for filling in implied data. All the values can be determined by recursively applying the rules given above, and the full end result is this: +2 0-2 t1 0-2 # segment 1 +2 2-4 t2 100-102 # segment 2 +0.758889 4-4.758889 t1 2-2.758889 # segment 3 +0.5 4.4758889-5.258889 t2 102-102.5 # segment 4 +2 5.258889-7.258889 t1 3-5 # segment 5 +0.111111 7.258889-7.37 t2 102.5-102.611111 # segment 6 +1 7.37-8.37 t1 5-6 # segment 7
2011-02-14 11:05:35 +00:00
// timeline/tl_edl.c
void build_edl_timeline(struct MPContext *mpctx);
// timeline/tl_cue.c
void build_cue_timeline(struct MPContext *mpctx);
#endif /* MPLAYER_MP_CORE_H */