mirror of
https://github.com/mpv-player/mpv
synced 2024-12-27 01:22:30 +00:00
2c6a3cb1f2
Commit 884c179 attempted to make it possible to skip backwards through
the playlist, even for files which fail to intitialize, or play for a
very short time. This was also used to prevent mpv from looping forever
and doing nothing if --loop=inf is used, and no file in the playlist is
playable.
This broke looping of very short files, because mpv was assuming that
this case happened. But there are legitimate use cases.
Fix this by making the looping case special. Instead of checking whether
playback was "very short", check whether something could be decoded and
displayed/played. If yes, allow looping.
356 lines
12 KiB
C
356 lines
12 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_MP_CORE_H
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#define MPLAYER_MP_CORE_H
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#include <stdbool.h>
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#include "mpvcore/options.h"
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#include "demux/demux.h"
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// definitions used internally by the core player code
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#define INITIALIZED_VO 1
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#define INITIALIZED_AO 2
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#define INITIALIZED_GETCH2 8
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#define INITIALIZED_PLAYBACK 16
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#define INITIALIZED_STREAM 64
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#define INITIALIZED_DEMUXER 512
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#define INITIALIZED_ACODEC 1024
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#define INITIALIZED_VCODEC 2048
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#define INITIALIZED_SUB 4096
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#define INITIALIZED_ALL 0xFFFF
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enum stop_play_reason {
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KEEP_PLAYING = 0, // must be 0, numeric values of others do not matter
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AT_END_OF_FILE, // file has ended, prepare to play next
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// also returned on unrecoverable playback errors
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PT_NEXT_ENTRY, // prepare to play next entry in playlist
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PT_CURRENT_ENTRY, // prepare to play mpctx->playlist->current
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PT_STOP, // stop playback, clear playlist
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PT_RESTART, // restart previous file
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PT_QUIT, // stop playback, quit player
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};
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enum exit_reason {
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EXIT_NONE,
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EXIT_QUIT,
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EXIT_PLAYED,
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EXIT_ERROR,
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EXIT_NOTPLAYED,
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EXIT_SOMENOTPLAYED
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};
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struct timeline_part {
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double start;
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double source_start;
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struct demuxer *source;
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};
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struct chapter {
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double start;
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char *name;
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};
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enum mp_osd_seek_info {
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OSD_SEEK_INFO_BAR = 1,
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OSD_SEEK_INFO_TEXT = 2,
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OSD_SEEK_INFO_CHAPTER_TEXT = 4,
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OSD_SEEK_INFO_EDITION = 8,
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};
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enum seek_type {
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MPSEEK_NONE = 0,
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MPSEEK_RELATIVE,
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MPSEEK_ABSOLUTE,
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MPSEEK_FACTOR,
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};
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struct track {
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enum stream_type type;
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// The type specific ID, also called aid (audio), sid (subs), vid (video).
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// For UI purposes only; this ID doesn't have anything to do with any
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// IDs coming from demuxers or container files.
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int user_tid;
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// Same as stream->demuxer_id. -1 if not set.
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int demuxer_id;
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char *title;
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bool default_track;
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bool attached_picture;
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char *lang;
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// If this track is from an external file (e.g. subtitle file).
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bool is_external;
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char *external_filename;
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bool auto_loaded;
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// If the track's stream changes with the timeline (ordered chapters).
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bool under_timeline;
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// Value can change if under_timeline==true.
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struct demuxer *demuxer;
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// Invariant: !stream || stream->demuxer == demuxer
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struct sh_stream *stream;
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// For external subtitles, which are read fully on init. Do not attempt
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// to read packets from them.
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bool preloaded;
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};
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enum {
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MAX_NUM_VO_PTS = 100,
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};
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typedef struct MPContext {
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struct mpv_global *global;
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struct MPOpts *opts;
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struct mp_log *log;
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struct m_config *mconfig;
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struct input_ctx *input;
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struct osd_state *osd;
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struct mp_osd_msg *osd_msg_stack;
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char *terminal_osd_text;
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int add_osd_seek_info; // bitfield of enum mp_osd_seek_info
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double osd_visible; // for the osd bar only
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int osd_function;
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double osd_function_visible;
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double osd_last_update;
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struct playlist *playlist;
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char *filename; // currently playing file
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struct mp_resolve_result *resolve_result;
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enum stop_play_reason stop_play;
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unsigned int initialized_flags; // which subsystems have been initialized
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// Return code to use with PT_QUIT
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enum exit_reason quit_player_rc;
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int quit_custom_rc;
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bool has_quit_custom_rc;
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bool error_playing;
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int64_t shown_vframes, shown_aframes;
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struct demuxer **sources;
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int num_sources;
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struct timeline_part *timeline;
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int num_timeline_parts;
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int timeline_part;
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// NOTE: even if num_chapters==0, chapters being not NULL signifies presence
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// of chapter metadata
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struct chapter *chapters;
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int num_chapters;
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double video_offset;
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struct stream *stream;
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struct demuxer *demuxer;
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struct track **tracks;
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int num_tracks;
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char *track_layout_hash;
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// Selected tracks. NULL if no track selected.
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struct track *current_track[STREAM_TYPE_COUNT];
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struct sh_stream *sh[STREAM_TYPE_COUNT];
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struct sh_audio *sh_audio; // same as sh[STREAM_AUDIO]->audio
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struct sh_video *sh_video; // same as sh[STREAM_VIDEO]->video
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struct sh_sub *sh_sub; // same as sh[STREAM_SUB]->sub
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// Uses: accessing metadata (consider ordered chapters case, where the main
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// demuxer defines metadata), or special purpose demuxers like TV.
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struct demuxer *master_demuxer;
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struct mixer *mixer;
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struct ao *ao;
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struct vo *video_out;
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/* We're starting playback from scratch or after a seek. Show first
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* video frame immediately and reinitialize sync. */
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bool restart_playback;
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/* Set if audio should be timed to start with video frame after seeking,
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* not set when e.g. playing cover art */
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bool sync_audio_to_video;
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/* After playback restart (above) or audio stream change, adjust audio
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* stream by cutting samples or adding silence at the beginning to make
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* audio playback position match video position. */
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bool syncing_audio;
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bool hrseek_active;
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bool hrseek_framedrop;
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double hrseek_pts;
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// AV sync: the next frame should be shown when the audio out has this
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// much (in seconds) buffered data left. Increased when more data is
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// written to the ao, decreased when moving to the next frame.
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// In the audio-only case used as a timer since the last seek
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// by the audio CPU usage meter.
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double delay;
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// AV sync: time until next frame should be shown
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double time_frame;
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// How long the last vo flip() call took. Used to adjust timing with
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// the goal of making flip() calls finish (rather than start) at the
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// specified time.
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double last_vo_flip_duration;
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// How much video timing has been changed to make it match the audio
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// timeline. Used for status line information only.
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double total_avsync_change;
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// Total number of dropped frames that were "approved" to be dropped.
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// Actual dropping depends on --framedrop and decoder internals.
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int drop_frame_cnt;
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// Number of frames dropped in a row.
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int dropped_frames;
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// A-V sync difference when last frame was displayed. Kept to display
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// the same value if the status line is updated at a time where no new
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// video frame is shown.
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double last_av_difference;
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/* timestamp of video frame currently visible on screen
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* (or at least queued to be flipped by VO) */
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double video_pts;
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double last_seek_pts;
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// As video_pts, but is not reset when seeking away. (For the very short
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// period of time until a new frame is decoded and shown.)
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double last_vo_pts;
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// Video PTS, or audio PTS if video has ended.
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double playback_pts;
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// Used to determine whether the video filter chain was rebuilt.
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long last_vf_reconfig_count;
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// History of video frames timestamps that were queued in the VO
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// This includes even skipped frames during hr-seek
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double vo_pts_history_pts[MAX_NUM_VO_PTS];
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// Whether the PTS at vo_pts_history[n] is after a seek reset
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uint64_t vo_pts_history_seek[MAX_NUM_VO_PTS];
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uint64_t vo_pts_history_seek_ts;
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uint64_t backstep_start_seek_ts;
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bool backstep_active;
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double audio_delay;
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double last_heartbeat;
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double last_metadata_update;
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double mouse_timer;
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unsigned int mouse_event_ts;
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bool mouse_cursor_visible;
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// used to prevent hanging in some error cases
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double start_timestamp;
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// Timestamp from the last time some timing functions read the
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// current time, in (occasionally wrapping) microseconds. Used
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// to turn a new time value to a delta from last time.
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int64_t last_time;
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// Used to communicate the parameters of a seek between parts
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struct seek_params {
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enum seek_type type;
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double amount;
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int exact; // -1 = disable, 0 = default, 1 = enable
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// currently not set by commands, only used internally by seek()
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int direction; // -1 = backward, 0 = default, 1 = forward
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} seek;
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/* Heuristic for relative chapter seeks: keep track which chapter
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* the user wanted to go to, even if we aren't exactly within the
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* boundaries of that chapter due to an inaccurate seek. */
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int last_chapter_seek;
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double last_chapter_pts;
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struct ass_library *ass_library;
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int last_dvb_step;
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int dvbin_reopen;
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bool paused;
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// step this many frames, then pause
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int step_frames;
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// Counted down each frame, stop playback if 0 is reached. (-1 = disable)
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int max_frames;
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bool playing_msg_shown;
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bool paused_for_cache;
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// Set after showing warning about decoding being too slow for realtime
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// playback rate. Used to avoid showing it multiple times.
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bool drop_message_shown;
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struct screenshot_ctx *screenshot_ctx;
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struct command_ctx *command_ctx;
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struct encode_lavc_context *encode_lavc_ctx;
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struct lua_ctx *lua_ctx;
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} MPContext;
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// should not be global
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extern FILE *edl_fd;
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// These appear in options list
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extern int forced_subs_only;
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void uninit_player(struct MPContext *mpctx, unsigned int mask);
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void reinit_audio_chain(struct MPContext *mpctx);
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double playing_audio_pts(struct MPContext *mpctx);
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struct track *mp_add_subtitles(struct MPContext *mpctx, char *filename);
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int reinit_video_chain(struct MPContext *mpctx);
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int reinit_video_filters(struct MPContext *mpctx);
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int reinit_audio_filters(struct MPContext *mpctx);
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void pause_player(struct MPContext *mpctx);
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void unpause_player(struct MPContext *mpctx);
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void add_step_frame(struct MPContext *mpctx, int dir);
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void queue_seek(struct MPContext *mpctx, enum seek_type type, double amount,
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int exact);
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bool mp_seek_chapter(struct MPContext *mpctx, int chapter);
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double get_time_length(struct MPContext *mpctx);
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double get_start_time(struct MPContext *mpctx);
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double get_current_time(struct MPContext *mpctx);
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int get_percent_pos(struct MPContext *mpctx);
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double get_current_pos_ratio(struct MPContext *mpctx, bool use_range);
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int get_current_chapter(struct MPContext *mpctx);
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char *chapter_display_name(struct MPContext *mpctx, int chapter);
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char *chapter_name(struct MPContext *mpctx, int chapter);
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double chapter_start_time(struct MPContext *mpctx, int chapter);
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int get_chapter_count(struct MPContext *mpctx);
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void mp_switch_track(struct MPContext *mpctx, enum stream_type type,
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struct track *track);
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struct track *mp_track_by_tid(struct MPContext *mpctx, enum stream_type type,
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int tid);
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bool mp_remove_track(struct MPContext *mpctx, struct track *track);
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struct playlist_entry *mp_next_file(struct MPContext *mpctx, int direction,
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bool force);
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int mp_get_cache_percent(struct MPContext *mpctx);
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void mp_write_watch_later_conf(struct MPContext *mpctx);
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void mp_set_playlist_entry(struct MPContext *mpctx, struct playlist_entry *e);
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struct playlist_entry *mp_resume_playlist(struct playlist *playlist,
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struct MPOpts *opts);
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void mp_force_video_refresh(struct MPContext *mpctx);
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void mp_print_version(int always);
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// timeline/tl_matroska.c
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void build_ordered_chapter_timeline(struct MPContext *mpctx);
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// timeline/tl_edl.c
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void build_edl_timeline(struct MPContext *mpctx);
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// timeline/tl_cue.c
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void build_cue_timeline(struct MPContext *mpctx);
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#endif /* MPLAYER_MP_CORE_H */
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