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🎥 Command line media player
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#include <stddef.h>#include <stdbool.h>#include <inttypes.h>#include <math.h>#include <assert.h>
#include "config.h"#include "mpv_talloc.h"
#include "common/msg.h"#include "options/options.h"#include "common/common.h"#include "common/encode.h"#include "common/recorder.h"#include "options/m_config.h"#include "options/m_property.h"#include "common/playlist.h"#include "input/input.h"
#include "misc/dispatch.h"#include "osdep/terminal.h"#include "osdep/timer.h"
#include "audio/decode/dec_audio.h"#include "audio/out/ao.h"#include "demux/demux.h"#include "stream/stream.h"#include "sub/osd.h"#include "video/filter/vf.h"#include "video/decode/dec_video.h"#include "video/out/vo.h"
#include "core.h"#include "client.h"#include "command.h"
// Wait until mp_wakeup_core() is called, since the last time// mp_wait_events() was called.void mp_wait_events(struct MPContext *mpctx){ bool sleeping = mpctx->sleeptime > 0; if (sleeping) MP_STATS(mpctx, "start sleep");
mpctx->in_dispatch = true;
mp_dispatch_queue_process(mpctx->dispatch, mpctx->sleeptime);
mpctx->in_dispatch = false; mpctx->sleeptime = INFINITY;
if (sleeping) MP_STATS(mpctx, "end sleep");}
// Set the timeout used when the playloop goes to sleep. This means the// playloop will re-run as soon as the timeout elapses (or earlier).// mp_set_timeout(c, 0) is essentially equivalent to mp_wakeup_core(c).void mp_set_timeout(struct MPContext *mpctx, double sleeptime){ mpctx->sleeptime = MPMIN(mpctx->sleeptime, sleeptime);
// Can't adjust timeout if called from mp_dispatch_queue_process(). if (mpctx->in_dispatch && isfinite(sleeptime)) mp_wakeup_core(mpctx);}
// Cause the playloop to run. This can be called from any thread. If called// from within the playloop itself, it will be run immediately again, instead// of going to sleep in the next mp_wait_events().void mp_wakeup_core(struct MPContext *mpctx){ mp_dispatch_interrupt(mpctx->dispatch);}
// Opaque callback variant of mp_wakeup_core().void mp_wakeup_core_cb(void *ctx){ struct MPContext *mpctx = ctx; mp_wakeup_core(mpctx);}
// Process any queued input, whether it's user input, or requests from client// API threads. This also resets the "wakeup" flag used with mp_wait_events().void mp_process_input(struct MPContext *mpctx){ for (;;) { mp_cmd_t *cmd = mp_input_read_cmd(mpctx->input); if (!cmd) break; run_command(mpctx, cmd, NULL); mp_cmd_free(cmd); } mp_set_timeout(mpctx, mp_input_get_delay(mpctx->input));}
double get_relative_time(struct MPContext *mpctx){ int64_t new_time = mp_time_us(); int64_t delta = new_time - mpctx->last_time; mpctx->last_time = new_time; return delta * 0.000001;}
void update_core_idle_state(struct MPContext *mpctx){ bool eof = mpctx->video_status == STATUS_EOF && mpctx->audio_status == STATUS_EOF; bool active = !mpctx->paused && mpctx->restart_complete && mpctx->playing && mpctx->in_playloop && !eof;
if (mpctx->playback_active != active) { mpctx->playback_active = active;
update_screensaver_state(mpctx);
mp_notify(mpctx, MP_EVENT_CORE_IDLE, NULL); }}
// The value passed here is the new value for mpctx->opts->pausevoid set_pause_state(struct MPContext *mpctx, bool user_pause){ struct MPOpts *opts = mpctx->opts; bool send_update = false;
if (opts->pause != user_pause) send_update = true; opts->pause = user_pause;
bool internal_paused = opts->pause || mpctx->paused_for_cache; if (internal_paused != mpctx->paused) { mpctx->paused = internal_paused; send_update = true;
if (mpctx->ao && mpctx->ao_chain) { if (internal_paused) { ao_pause(mpctx->ao); } else { ao_resume(mpctx->ao); } }
if (mpctx->video_out) vo_set_paused(mpctx->video_out, internal_paused);
mpctx->osd_function = 0; mpctx->osd_force_update = true;
mp_wakeup_core(mpctx);
if (internal_paused) { mpctx->step_frames = 0; mpctx->time_frame -= get_relative_time(mpctx); } else { (void)get_relative_time(mpctx); // ignore time that passed during pause } }
update_core_idle_state(mpctx);
if (send_update) mp_notify(mpctx, opts->pause ? MPV_EVENT_PAUSE : MPV_EVENT_UNPAUSE, 0);}
void update_internal_pause_state(struct MPContext *mpctx){ set_pause_state(mpctx, mpctx->opts->pause);}
void update_screensaver_state(struct MPContext *mpctx){ if (!mpctx->video_out) return;
bool saver_state = !mpctx->playback_active || !mpctx->opts->stop_screensaver; vo_control_async(mpctx->video_out, saver_state ? VOCTRL_RESTORE_SCREENSAVER : VOCTRL_KILL_SCREENSAVER, NULL);}
void add_step_frame(struct MPContext *mpctx, int dir){ if (!mpctx->vo_chain) return; if (dir > 0) { mpctx->step_frames += 1; set_pause_state(mpctx, false); } else if (dir < 0) { if (!mpctx->hrseek_active) { queue_seek(mpctx, MPSEEK_BACKSTEP, 0, MPSEEK_VERY_EXACT, 0); set_pause_state(mpctx, true); } }}
// Clear some playback-related fields on file loading or after seeks.void reset_playback_state(struct MPContext *mpctx){ if (mpctx->lavfi) lavfi_seek_reset(mpctx->lavfi);
for (int n = 0; n < mpctx->num_tracks; n++) { if (mpctx->tracks[n]->d_video) video_reset(mpctx->tracks[n]->d_video); if (mpctx->tracks[n]->d_audio) audio_reset_decoding(mpctx->tracks[n]->d_audio); }
reset_video_state(mpctx); reset_audio_state(mpctx); reset_subtitle_state(mpctx);
mpctx->hrseek_active = false; mpctx->hrseek_framedrop = false; mpctx->hrseek_lastframe = false; mpctx->hrseek_backstep = false; mpctx->current_seek = (struct seek_params){0}; mpctx->playback_pts = MP_NOPTS_VALUE; mpctx->last_seek_pts = MP_NOPTS_VALUE; mpctx->cache_wait_time = 0; mpctx->step_frames = 0; mpctx->ab_loop_clip = true; mpctx->restart_complete = false;
#if HAVE_ENCODING encode_lavc_discontinuity(mpctx->encode_lavc_ctx);#endif
update_core_idle_state(mpctx);}
static void mp_seek(MPContext *mpctx, struct seek_params seek){ struct MPOpts *opts = mpctx->opts;
if (!mpctx->demuxer || seek.type == MPSEEK_NONE || seek.amount == MP_NOPTS_VALUE) return;
bool hr_seek_very_exact = seek.exact == MPSEEK_VERY_EXACT; double current_time = get_current_time(mpctx); if (current_time == MP_NOPTS_VALUE && seek.type == MPSEEK_RELATIVE) return; if (current_time == MP_NOPTS_VALUE) current_time = 0; double seek_pts = MP_NOPTS_VALUE; int demux_flags = 0;
switch (seek.type) { case MPSEEK_ABSOLUTE: seek_pts = seek.amount; break; case MPSEEK_BACKSTEP: seek_pts = current_time; hr_seek_very_exact = true; break; case MPSEEK_RELATIVE: demux_flags = seek.amount > 0 ? SEEK_FORWARD : 0; seek_pts = current_time + seek.amount; break; case MPSEEK_FACTOR: ; double len = get_time_length(mpctx); if (len >= 0) seek_pts = seek.amount * len; break; default: abort(); }
double demux_pts = seek_pts;
bool hr_seek = opts->correct_pts && seek.exact != MPSEEK_KEYFRAME && ((opts->hr_seek == 0 && seek.type == MPSEEK_ABSOLUTE) || opts->hr_seek > 0 || seek.exact >= MPSEEK_EXACT) && seek_pts != MP_NOPTS_VALUE;
if (seek.type == MPSEEK_FACTOR || seek.amount < 0 || (seek.type == MPSEEK_ABSOLUTE && seek.amount < mpctx->last_chapter_pts)) mpctx->last_chapter_seek = -2;
// Under certain circumstances, prefer SEEK_FACTOR. if (seek.type == MPSEEK_FACTOR && !hr_seek && (mpctx->demuxer->ts_resets_possible || seek_pts == MP_NOPTS_VALUE)) { demux_pts = seek.amount; demux_flags |= SEEK_FACTOR; }
if (hr_seek) { double hr_seek_offset = opts->hr_seek_demuxer_offset; // Always try to compensate for possibly bad demuxers in "special" // situations where we need more robustness from the hr-seek code, even // if the user doesn't use --hr-seek-demuxer-offset. // The value is arbitrary, but should be "good enough" in most situations. if (hr_seek_very_exact) hr_seek_offset = MPMAX(hr_seek_offset, 0.5); // arbitrary for (int n = 0; n < mpctx->num_tracks; n++) { double offset = 0; if (!mpctx->tracks[n]->is_external) offset += get_track_seek_offset(mpctx, mpctx->tracks[n]); hr_seek_offset = MPMAX(hr_seek_offset, -offset); } demux_pts -= hr_seek_offset; demux_flags = (demux_flags | SEEK_HR) & ~SEEK_FORWARD; }
if (!mpctx->demuxer->seekable) demux_flags |= SEEK_CACHED;
if (!demux_seek(mpctx->demuxer, demux_pts, demux_flags)) { if (!mpctx->demuxer->seekable) { MP_ERR(mpctx, "Cannot seek in this file.\n"); MP_ERR(mpctx, "You can force it with '--force-seekable=yes'.\n"); } return; }
// Seek external, extra files too: for (int t = 0; t < mpctx->num_tracks; t++) { struct track *track = mpctx->tracks[t]; if (track->selected && track->is_external && track->demuxer) { double main_new_pos = demux_pts; if (!hr_seek || track->is_external) main_new_pos += get_track_seek_offset(mpctx, track); if (demux_flags & SEEK_FACTOR) main_new_pos = seek_pts; demux_seek(track->demuxer, main_new_pos, 0); } }
if (!(seek.flags & MPSEEK_FLAG_NOFLUSH)) clear_audio_output_buffers(mpctx);
reset_playback_state(mpctx); if (mpctx->recorder) mp_recorder_mark_discontinuity(mpctx->recorder);
/* Use the target time as "current position" for further relative * seeks etc until a new video frame has been decoded */ mpctx->last_seek_pts = seek_pts;
if (hr_seek) { mpctx->hrseek_active = true; mpctx->hrseek_framedrop = !hr_seek_very_exact && opts->hr_seek_framedrop; mpctx->hrseek_backstep = seek.type == MPSEEK_BACKSTEP; mpctx->hrseek_pts = seek_pts;
MP_VERBOSE(mpctx, "hr-seek, skipping to %f%s%s\n", mpctx->hrseek_pts, mpctx->hrseek_framedrop ? "" : " (no framedrop)", mpctx->hrseek_backstep ? " (backstep)" : ""); }
if (mpctx->stop_play == AT_END_OF_FILE) mpctx->stop_play = KEEP_PLAYING;
mpctx->start_timestamp = mp_time_sec(); mp_wakeup_core(mpctx);
mp_notify(mpctx, MPV_EVENT_SEEK, NULL); mp_notify(mpctx, MPV_EVENT_TICK, NULL);
mpctx->audio_allow_second_chance_seek = !hr_seek && !(demux_flags & SEEK_FORWARD);
mpctx->ab_loop_clip = mpctx->last_seek_pts < opts->ab_loop[1];
mpctx->current_seek = seek;}
// This combines consecutive seek requests.void queue_seek(struct MPContext *mpctx, enum seek_type type, double amount, enum seek_precision exact, int flags){ struct seek_params *seek = &mpctx->seek;
mp_wakeup_core(mpctx);
if (mpctx->stop_play == AT_END_OF_FILE) mpctx->stop_play = KEEP_PLAYING;
switch (type) { case MPSEEK_RELATIVE: seek->flags |= flags; if (seek->type == MPSEEK_FACTOR) return; // Well... not common enough to bother doing better seek->amount += amount; seek->exact = MPMAX(seek->exact, exact); if (seek->type == MPSEEK_NONE) seek->exact = exact; if (seek->type == MPSEEK_ABSOLUTE) return; seek->type = MPSEEK_RELATIVE; return; case MPSEEK_ABSOLUTE: case MPSEEK_FACTOR: case MPSEEK_BACKSTEP: *seek = (struct seek_params) { .type = type, .amount = amount, .exact = exact, .flags = flags, }; return; case MPSEEK_NONE: *seek = (struct seek_params){ 0 }; return; } abort();}
void execute_queued_seek(struct MPContext *mpctx){ if (mpctx->seek.type) { // Let explicitly imprecise seeks cancel precise seeks: if (mpctx->hrseek_active && mpctx->seek.exact == MPSEEK_KEYFRAME) mpctx->start_timestamp = -1e9; /* If the user seeks continuously (keeps arrow key down) * try to finish showing a frame from one location before doing * another seek (which could lead to unchanging display). */ bool delay = mpctx->seek.flags & MPSEEK_FLAG_DELAY; if (delay && mpctx->video_status < STATUS_PLAYING && mp_time_sec() - mpctx->start_timestamp < 0.3) return; mp_seek(mpctx, mpctx->seek); mpctx->seek = (struct seek_params){0}; }}
// NOPTS (i.e. <0) if unknowndouble get_time_length(struct MPContext *mpctx){ struct demuxer *demuxer = mpctx->demuxer; return demuxer && demuxer->duration >= 0 ? demuxer->duration : MP_NOPTS_VALUE;}
double get_current_time(struct MPContext *mpctx){ struct demuxer *demuxer = mpctx->demuxer; if (demuxer) { if (mpctx->playback_pts != MP_NOPTS_VALUE) return mpctx->playback_pts; if (mpctx->last_seek_pts != MP_NOPTS_VALUE) return mpctx->last_seek_pts; } return MP_NOPTS_VALUE;}
double get_playback_time(struct MPContext *mpctx){ double cur = get_current_time(mpctx); if (cur == MP_NOPTS_VALUE) return cur; // During seeking, the time corresponds to the last seek time - apply some // cosmetics to it. if (mpctx->playback_pts == MP_NOPTS_VALUE) { double length = get_time_length(mpctx); if (length >= 0) cur = MPCLAMP(cur, 0, length); } return cur;}
// Return playback position in 0.0-1.0 ratio, or -1 if unknown.double get_current_pos_ratio(struct MPContext *mpctx, bool use_range){ struct demuxer *demuxer = mpctx->demuxer; if (!demuxer) return -1; double ans = -1; double start = 0; double len = get_time_length(mpctx); if (use_range) { double startpos = get_play_start_pts(mpctx); double endpos = get_play_end_pts(mpctx); if (endpos == MP_NOPTS_VALUE || endpos > MPMAX(0, len)) endpos = MPMAX(0, len); if (startpos == MP_NOPTS_VALUE || startpos < 0) startpos = 0; if (endpos < startpos) endpos = startpos; start = startpos; len = endpos - startpos; } double pos = get_current_time(mpctx); if (len > 0) ans = MPCLAMP((pos - start) / len, 0, 1); if (ans < 0 || demuxer->ts_resets_possible) { int64_t size; if (demux_stream_control(demuxer, STREAM_CTRL_GET_SIZE, &size) > 0) { if (size > 0 && demuxer->filepos >= 0) ans = MPCLAMP(demuxer->filepos / (double)size, 0, 1); } } if (use_range) { if (mpctx->opts->play_frames > 0) ans = MPMAX(ans, 1.0 - mpctx->max_frames / (double) mpctx->opts->play_frames); } return ans;}
// 0-100, -1 if unknownint get_percent_pos(struct MPContext *mpctx){ double pos = get_current_pos_ratio(mpctx, false); return pos < 0 ? -1 : pos * 100;}
// -2 is no chapters, -1 is before first chapterint get_current_chapter(struct MPContext *mpctx){ if (!mpctx->num_chapters) return -2; double current_pts = get_current_time(mpctx); int i; for (i = 0; i < mpctx->num_chapters; i++) if (current_pts < mpctx->chapters[i].pts) break; return MPMAX(mpctx->last_chapter_seek, i - 1);}
char *chapter_display_name(struct MPContext *mpctx, int chapter){ char *name = chapter_name(mpctx, chapter); char *dname = NULL; if (name) { dname = talloc_asprintf(NULL, "(%d) %s", chapter + 1, name); } else if (chapter < -1) { dname = talloc_strdup(NULL, "(unavailable)"); } else { int chapter_count = get_chapter_count(mpctx); if (chapter_count <= 0) dname = talloc_asprintf(NULL, "(%d)", chapter + 1); else dname = talloc_asprintf(NULL, "(%d) of %d", chapter + 1, chapter_count); } return dname;}
// returns NULL if chapter name unavailablechar *chapter_name(struct MPContext *mpctx, int chapter){ if (chapter < 0 || chapter >= mpctx->num_chapters) return NULL; return mp_tags_get_str(mpctx->chapters[chapter].metadata, "title");}
// returns the start of the chapter in seconds (NOPTS if unavailable)double chapter_start_time(struct MPContext *mpctx, int chapter){ if (chapter == -1) return 0; if (chapter >= 0 && chapter < mpctx->num_chapters) return mpctx->chapters[chapter].pts; return MP_NOPTS_VALUE;}
int get_chapter_count(struct MPContext *mpctx){ return mpctx->num_chapters;}
static void handle_osd_redraw(struct MPContext *mpctx){ if (!mpctx->video_out || !mpctx->video_out->config_ok) return; // If we're playing normally, let OSD be redrawn naturally as part of // video display. if (!mpctx->paused) { if (mpctx->sleeptime < 0.1 && mpctx->video_status == STATUS_PLAYING) return; } // Don't redraw immediately during a seek (makes it significantly slower). bool use_video = mpctx->vo_chain && !mpctx->vo_chain->is_coverart; if (use_video && mp_time_sec() - mpctx->start_timestamp < 0.1) { mp_set_timeout(mpctx, 0.1); return; } bool want_redraw = osd_query_and_reset_want_redraw(mpctx->osd) || vo_want_redraw(mpctx->video_out); if (!want_redraw) return; vo_redraw(mpctx->video_out);}
static void handle_pause_on_low_cache(struct MPContext *mpctx){ bool force_update = false; struct MPOpts *opts = mpctx->opts; if (!mpctx->demuxer) return;
double now = mp_time_sec();
struct stream_cache_info c = {.idle = true}; demux_stream_control(mpctx->demuxer, STREAM_CTRL_GET_CACHE_INFO, &c);
struct demux_ctrl_reader_state s = {.idle = true, .ts_duration = -1}; demux_control(mpctx->demuxer, DEMUXER_CTRL_GET_READER_STATE, &s);
int cache_buffer = 100; bool use_pause_on_low_cache = c.size > 0 || mpctx->demuxer->is_network;
if (mpctx->restart_complete && use_pause_on_low_cache) { if (mpctx->paused && mpctx->paused_for_cache) { if (!s.underrun && (!opts->cache_pausing || s.idle || s.ts_duration >= mpctx->cache_wait_time)) { double elapsed_time = now - mpctx->cache_stop_time; if (elapsed_time > mpctx->cache_wait_time) { mpctx->cache_wait_time *= 1.5 + 0.1; } else { mpctx->cache_wait_time /= 1.5 - 0.1; } mpctx->paused_for_cache = false; update_internal_pause_state(mpctx); force_update = true; } mp_set_timeout(mpctx, 0.2); } else { if (opts->cache_pausing && s.underrun) { mpctx->paused_for_cache = true; update_internal_pause_state(mpctx); mpctx->cache_stop_time = now; force_update = true; } } mpctx->cache_wait_time = MPCLAMP(mpctx->cache_wait_time, 1, 10); if (mpctx->paused_for_cache) { cache_buffer = 100 * MPCLAMP(s.ts_duration / mpctx->cache_wait_time, 0, 0.99); } }
// Also update cache properties. bool busy = !s.idle || !c.idle; if (busy || mpctx->next_cache_update > 0) { if (mpctx->next_cache_update <= now) { mpctx->next_cache_update = busy ? now + 0.25 : 0; force_update = true; } if (mpctx->next_cache_update > 0) mp_set_timeout(mpctx, mpctx->next_cache_update - now); }
if (mpctx->cache_buffer != cache_buffer) { if (mpctx->cache_buffer >= 0 && (mpctx->cache_buffer == 100) != (cache_buffer == 100)) { if (cache_buffer < 100) { MP_VERBOSE(mpctx, "Enter buffering.\n"); } else { double t = now - mpctx->cache_stop_time; MP_VERBOSE(mpctx, "End buffering (waited %f secs).\n", t); } } mpctx->cache_buffer = cache_buffer; force_update = true; }
if (s.eof && !busy) prefetch_next(mpctx);
if (force_update) mp_notify(mpctx, MP_EVENT_CACHE_UPDATE, NULL);}
int get_cache_buffering_percentage(struct MPContext *mpctx){ return mpctx->demuxer ? mpctx->cache_buffer : -1;}
static void handle_cursor_autohide(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; struct vo *vo = mpctx->video_out;
if (!vo) return;
bool mouse_cursor_visible = mpctx->mouse_cursor_visible; double now = mp_time_sec();
unsigned mouse_event_ts = mp_input_get_mouse_event_counter(mpctx->input); if (mpctx->mouse_event_ts != mouse_event_ts) { mpctx->mouse_event_ts = mouse_event_ts; mpctx->mouse_timer = now + opts->cursor_autohide_delay / 1000.0; mouse_cursor_visible = true; }
if (mpctx->mouse_timer > now) { mp_set_timeout(mpctx, mpctx->mouse_timer - now); } else { mouse_cursor_visible = false; }
if (opts->cursor_autohide_delay == -1) mouse_cursor_visible = true;
if (opts->cursor_autohide_delay == -2) mouse_cursor_visible = false;
if (opts->cursor_autohide_fs && !opts->vo->fullscreen) mouse_cursor_visible = true;
if (mouse_cursor_visible != mpctx->mouse_cursor_visible) vo_control(vo, VOCTRL_SET_CURSOR_VISIBILITY, &mouse_cursor_visible); mpctx->mouse_cursor_visible = mouse_cursor_visible;}
static void handle_vo_events(struct MPContext *mpctx){ struct vo *vo = mpctx->video_out; int events = vo ? vo_query_and_reset_events(vo, VO_EVENTS_USER) : 0; if (events & VO_EVENT_RESIZE) mp_notify(mpctx, MP_EVENT_WIN_RESIZE, NULL); if (events & VO_EVENT_WIN_STATE) mp_notify(mpctx, MP_EVENT_WIN_STATE, NULL); if (events & VO_EVENT_FULLSCREEN_STATE) { // The only purpose of this is to update the fullscreen flag on the // playloop side if it changes "from outside" on the VO. int fs = mpctx->opts->vo->fullscreen; vo_control(vo, VOCTRL_GET_FULLSCREEN, &fs); m_config_set_option_raw_direct(mpctx->mconfig, m_config_get_co(mpctx->mconfig, bstr0("fullscreen")), &fs, 0); }}
static void handle_sstep(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; if (mpctx->stop_play || !mpctx->restart_complete) return;
if (opts->step_sec > 0 && !mpctx->paused) { set_osd_function(mpctx, OSD_FFW); queue_seek(mpctx, MPSEEK_RELATIVE, opts->step_sec, MPSEEK_DEFAULT, 0); }
if (mpctx->video_status >= STATUS_EOF) { if (mpctx->max_frames >= 0 && !mpctx->stop_play) mpctx->stop_play = AT_END_OF_FILE; // force EOF even if audio left if (mpctx->step_frames > 0 && !mpctx->paused) set_pause_state(mpctx, true); }}
static void handle_loop_file(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts;
if (mpctx->stop_play == AT_END_OF_FILE && (opts->ab_loop[0] != MP_NOPTS_VALUE || opts->ab_loop[1] != MP_NOPTS_VALUE)) { // Assumes execute_queued_seek() happens before next audio/video is // attempted to be decoded or filtered. mpctx->stop_play = KEEP_PLAYING; double start = get_ab_loop_start_time(mpctx); if (start == MP_NOPTS_VALUE) start = 0; mark_seek(mpctx); queue_seek(mpctx, MPSEEK_ABSOLUTE, start, MPSEEK_EXACT, MPSEEK_FLAG_NOFLUSH); }
// Do not attempt to loop-file if --ab-loop is active. else if (opts->loop_file && mpctx->stop_play == AT_END_OF_FILE) { double play_start_pts = get_play_start_pts(mpctx); if (play_start_pts == MP_NOPTS_VALUE) play_start_pts = 0; double play_end_pts = get_play_end_pts(mpctx); if (play_end_pts == MP_NOPTS_VALUE || play_start_pts < play_end_pts){ mpctx->stop_play = KEEP_PLAYING; set_osd_function(mpctx, OSD_FFW); queue_seek(mpctx, MPSEEK_ABSOLUTE, play_start_pts, MPSEEK_EXACT, MPSEEK_FLAG_NOFLUSH); if (opts->loop_file > 0) opts->loop_file--; }
}}
void seek_to_last_frame(struct MPContext *mpctx){ if (!mpctx->vo_chain) return; if (mpctx->hrseek_lastframe) // exit if we already tried this return; MP_VERBOSE(mpctx, "seeking to last frame...\n"); // Approximately seek close to the end of the file. // Usually, it will seek some seconds before end. double end = get_play_end_pts(mpctx); if (end == MP_NOPTS_VALUE) end = get_time_length(mpctx); mp_seek(mpctx, (struct seek_params){ .type = MPSEEK_ABSOLUTE, .amount = end, .exact = MPSEEK_VERY_EXACT, }); // Make it exact: stop seek only if last frame was reached. if (mpctx->hrseek_active) { mpctx->hrseek_pts = 1e99; // "infinite" mpctx->hrseek_lastframe = true; }}
static void handle_keep_open(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; if (opts->keep_open && mpctx->stop_play == AT_END_OF_FILE && (opts->keep_open == 2 || !playlist_get_next(mpctx->playlist, 1)) && opts->loop_times == 1) { mpctx->stop_play = KEEP_PLAYING; if (mpctx->vo_chain) { if (!vo_has_frame(mpctx->video_out)) // EOF not reached normally seek_to_last_frame(mpctx); mpctx->playback_pts = mpctx->last_vo_pts; } if (opts->keep_open_pause) set_pause_state(mpctx, true); }}
static void handle_chapter_change(struct MPContext *mpctx){ int chapter = get_current_chapter(mpctx); if (chapter != mpctx->last_chapter) { mpctx->last_chapter = chapter; mp_notify(mpctx, MPV_EVENT_CHAPTER_CHANGE, NULL); }}
// Execute a forceful refresh of the VO window. This clears the window from// the previous video. It also creates/destroys the VO on demand.// It tries to make the change only in situations where the window is// definitely needed or not needed, or if the force parameter is set (the// latter also decides whether to clear an existing window, because there's// no way to know if this has already been done or not).int handle_force_window(struct MPContext *mpctx, bool force){ // True if we're either in idle mode, or loading of the file has finished. // It's also set via force in some stages during file loading. bool act = !mpctx->playing || mpctx->playback_initialized || force;
// On the other hand, if a video track is selected, but no video is ever // decoded on it, then create the window. bool stalled_video = mpctx->playback_initialized && mpctx->restart_complete && mpctx->video_status == STATUS_EOF && mpctx->vo_chain && !mpctx->video_out->config_ok;
// Don't interfere with real video playback if (mpctx->vo_chain && !stalled_video) return 0;
if (!mpctx->opts->force_vo) { if (act && !mpctx->vo_chain) uninit_video_out(mpctx); return 0; }
if (mpctx->opts->force_vo != 2 && !act) return 0;
if (!mpctx->video_out) { struct vo_extra ex = { .input_ctx = mpctx->input, .osd = mpctx->osd, .encode_lavc_ctx = mpctx->encode_lavc_ctx, .opengl_cb_context = mpctx->gl_cb_ctx, .wakeup_cb = mp_wakeup_core_cb, .wakeup_ctx = mpctx, }; mpctx->video_out = init_best_video_out(mpctx->global, &ex); if (!mpctx->video_out) goto err; mpctx->mouse_cursor_visible = true; }
if (!mpctx->video_out->config_ok || force) { struct vo *vo = mpctx->video_out; // Pick whatever works int config_format = 0; uint8_t fmts[IMGFMT_END - IMGFMT_START] = {0}; vo_query_formats(vo, fmts); for (int fmt = IMGFMT_START; fmt < IMGFMT_END; fmt++) { if (fmts[fmt - IMGFMT_START]) { config_format = fmt; break; } } int w = 960; int h = 480; struct mp_image_params p = { .imgfmt = config_format, .w = w, .h = h, .p_w = 1, .p_h = 1, }; if (vo_reconfig(vo, &p) < 0) goto err; update_screensaver_state(mpctx); vo_set_paused(vo, true); vo_redraw(vo); mp_notify(mpctx, MPV_EVENT_VIDEO_RECONFIG, NULL); }
return 0;
err: mpctx->opts->force_vo = 0; uninit_video_out(mpctx); MP_FATAL(mpctx, "Error opening/initializing the VO window.\n"); return -1;}
// Potentially needed by some Lua scripts, which assume TICK always comes.static void handle_dummy_ticks(struct MPContext *mpctx){ if (mpctx->video_status == STATUS_EOF || mpctx->paused) { if (mp_time_sec() - mpctx->last_idle_tick > 0.050) { mpctx->last_idle_tick = mp_time_sec(); mp_notify(mpctx, MPV_EVENT_TICK, NULL); } }}
// Update current playback time.static void handle_playback_time(struct MPContext *mpctx){ if (mpctx->vo_chain && !mpctx->vo_chain->is_coverart && mpctx->video_status >= STATUS_PLAYING && mpctx->video_status < STATUS_EOF) { mpctx->playback_pts = mpctx->video_pts; } else if (mpctx->audio_status >= STATUS_PLAYING && mpctx->audio_status < STATUS_EOF) { mpctx->playback_pts = playing_audio_pts(mpctx); }}
// We always make sure audio and video buffers are filled before actually// starting playback. This code handles starting them at the same time.static void handle_playback_restart(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts;
if (mpctx->audio_status < STATUS_READY || mpctx->video_status < STATUS_READY) return;
if (mpctx->video_status == STATUS_READY) { mpctx->video_status = STATUS_PLAYING; get_relative_time(mpctx); mp_wakeup_core(mpctx); }
if (mpctx->audio_status == STATUS_READY) { // If a new seek is queued while the current one finishes, don't // actually play the audio, but resume seeking immediately. if (mpctx->seek.type && mpctx->video_status == STATUS_PLAYING) { handle_playback_time(mpctx); execute_queued_seek(mpctx); return; }
fill_audio_out_buffers(mpctx); // actually play prepared buffer }
if (!mpctx->restart_complete) { mpctx->hrseek_active = false; mpctx->restart_complete = true; mpctx->current_seek = (struct seek_params){0}; mpctx->audio_allow_second_chance_seek = false; handle_playback_time(mpctx); mp_notify(mpctx, MPV_EVENT_PLAYBACK_RESTART, NULL); update_core_idle_state(mpctx); if (!mpctx->playing_msg_shown) { if (opts->playing_msg && opts->playing_msg[0]) { char *msg = mp_property_expand_escaped_string(mpctx, opts->playing_msg); struct mp_log *log = mp_log_new(NULL, mpctx->log, "!term-msg"); mp_info(log, "%s\n", msg); talloc_free(log); talloc_free(msg); } if (opts->osd_playing_msg && opts->osd_playing_msg[0]) { char *msg = mp_property_expand_escaped_string(mpctx, opts->osd_playing_msg); set_osd_msg(mpctx, 1, opts->osd_duration, "%s", msg); talloc_free(msg); } } mpctx->playing_msg_shown = true; mp_wakeup_core(mpctx); mpctx->ab_loop_clip = mpctx->playback_pts < opts->ab_loop[1]; MP_VERBOSE(mpctx, "playback restart complete\n"); }}
static void handle_eof(struct MPContext *mpctx){ /* Don't quit while paused and we're displaying the last video frame. On the * other hand, if we don't have a video frame, then the user probably seeked * outside of the video, and we do want to quit. */ bool prevent_eof = mpctx->paused && mpctx->video_out && vo_has_frame(mpctx->video_out); /* It's possible for the user to simultaneously switch both audio * and video streams to "disabled" at runtime. Handle this by waiting * rather than immediately stopping playback due to EOF. */ if ((mpctx->ao_chain || mpctx->vo_chain) && !prevent_eof && mpctx->audio_status == STATUS_EOF && mpctx->video_status == STATUS_EOF && !mpctx->stop_play) { mpctx->stop_play = AT_END_OF_FILE; }}
static void handle_complex_filter_decoders(struct MPContext *mpctx){ if (!mpctx->lavfi) return;
for (int n = 0; n < mpctx->num_tracks; n++) { struct track *track = mpctx->tracks[n]; if (!track->selected) continue; if (!track->sink || !lavfi_needs_input(track->sink)) continue; if (track->d_audio) { audio_work(track->d_audio); struct mp_aframe *fr; int res = audio_get_frame(track->d_audio, &fr); if (res == DATA_OK) { lavfi_send_frame_a(track->sink, fr); } else { lavfi_send_status(track->sink, res); } } if (track->d_video) { video_work(track->d_video); struct mp_image *fr; int res = video_get_frame(track->d_video, &fr); if (res == DATA_OK) { lavfi_send_frame_v(track->sink, fr); } else { lavfi_send_status(track->sink, res); } } }}
void run_playloop(struct MPContext *mpctx){#if HAVE_ENCODING if (encode_lavc_didfail(mpctx->encode_lavc_ctx)) { mpctx->stop_play = PT_QUIT; return; }#endif
update_demuxer_properties(mpctx);
handle_complex_filter_decoders(mpctx);
handle_cursor_autohide(mpctx); handle_vo_events(mpctx); handle_command_updates(mpctx);
if (mpctx->lavfi) { if (lavfi_process(mpctx->lavfi)) mp_wakeup_core(mpctx); if (lavfi_has_failed(mpctx->lavfi)) mpctx->stop_play = AT_END_OF_FILE; }
fill_audio_out_buffers(mpctx); write_video(mpctx);
handle_playback_restart(mpctx);
handle_playback_time(mpctx);
handle_dummy_ticks(mpctx);
update_osd_msg(mpctx); if (mpctx->video_status == STATUS_EOF) update_subtitles(mpctx, mpctx->playback_pts);
handle_eof(mpctx);
handle_loop_file(mpctx);
handle_keep_open(mpctx);
handle_sstep(mpctx);
update_core_idle_state(mpctx);
if (mpctx->stop_play) return;
handle_osd_redraw(mpctx);
mp_wait_events(mpctx);
handle_pause_on_low_cache(mpctx);
mp_process_input(mpctx);
handle_chapter_change(mpctx);
handle_force_window(mpctx, false);
execute_queued_seek(mpctx);}
void mp_idle(struct MPContext *mpctx){ handle_dummy_ticks(mpctx); mp_wait_events(mpctx); mp_process_input(mpctx); handle_command_updates(mpctx); handle_cursor_autohide(mpctx); handle_vo_events(mpctx); update_osd_msg(mpctx); handle_osd_redraw(mpctx);}
// Waiting for the slave master to send us a new file to play.void idle_loop(struct MPContext *mpctx){ // ================= idle loop (STOP state) ========================= bool need_reinit = true; while (mpctx->opts->player_idle_mode && !mpctx->playlist->current && mpctx->stop_play != PT_QUIT) { if (need_reinit) { uninit_audio_out(mpctx); handle_force_window(mpctx, true); mp_wakeup_core(mpctx); mp_notify(mpctx, MPV_EVENT_IDLE, NULL); need_reinit = false; } mp_idle(mpctx); }}