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🎥 Command line media player
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#include <assert.h>#include <inttypes.h>#include <math.h>#include <stdbool.h>#include <stddef.h>
#include "client.h"#include "command.h"#include "core.h"#include "mpv_talloc.h"#include "screenshot.h"
#include "audio/out/ao.h"#include "common/common.h"#include "common/encode.h"#include "common/msg.h"#include "common/playlist.h"#include "common/stats.h"#include "demux/demux.h"#include "filters/f_decoder_wrapper.h"#include "filters/filter_internal.h"#include "input/input.h"#include "misc/dispatch.h"#include "options/m_config_frontend.h"#include "options/m_property.h"#include "options/options.h"#include "osdep/terminal.h"#include "osdep/timer.h"#include "stream/stream.h"#include "sub/dec_sub.h"#include "sub/osd.h"#include "video/out/vo.h"
// Wait until mp_wakeup_core() is called, since the last time// mp_wait_events() was called.void mp_wait_events(struct MPContext *mpctx){ mp_client_send_property_changes(mpctx);
stats_event(mpctx->stats, "iterations");
bool sleeping = mpctx->sleeptime > 0; if (sleeping) MP_STATS(mpctx, "start sleep");
mp_dispatch_queue_process(mpctx->dispatch, mpctx->sleeptime);
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){ if (mpctx->sleeptime > sleeptime) { mpctx->sleeptime = sleeptime; int64_t abstime = mp_time_ns_add(mp_time_ns(), sleeptime); mp_dispatch_adjust_timeout(mpctx->dispatch, abstime); }}
// 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);}
void mp_core_lock(struct MPContext *mpctx){ mp_dispatch_lock(mpctx->dispatch);}
void mp_core_unlock(struct MPContext *mpctx){ mp_dispatch_unlock(mpctx->dispatch);}
// Process any queued user input.static void mp_process_input(struct MPContext *mpctx){ int processed = 0; for (;;) { mp_cmd_t *cmd = mp_input_read_cmd(mpctx->input); if (!cmd) break; run_command(mpctx, cmd, NULL, NULL, NULL); processed = 1; } mp_set_timeout(mpctx, mp_input_get_delay(mpctx->input)); if (processed) mp_notify(mpctx, MP_EVENT_INPUT_PROCESSED, NULL);}
double get_relative_time(struct MPContext *mpctx){ int64_t new_time = mp_time_ns(); int64_t delta = new_time - mpctx->last_time; mpctx->last_time = new_time; return delta * 1e-9;}
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->stop_play && 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); }}
bool get_internal_paused(struct MPContext *mpctx){ return mpctx->opts->pause || mpctx->paused_for_cache;}
// 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;
opts->pause = user_pause;
bool internal_paused = get_internal_paused(mpctx); if (internal_paused != mpctx->paused) { mpctx->paused = internal_paused;
if (mpctx->ao) { bool eof = mpctx->audio_status == STATUS_EOF; ao_set_paused(mpctx->ao, internal_paused, eof); }
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);
m_config_notify_change_opt_ptr(mpctx->mconfig, &opts->pause);}
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) && mpctx->opts->stop_screensaver != 2; vo_control_async(mpctx->video_out, saver_state ? VOCTRL_RESTORE_SCREENSAVER : VOCTRL_KILL_SCREENSAVER, NULL);}
void add_step_frame(struct MPContext *mpctx, int dir, bool use_seek){ if (!mpctx->vo_chain) return; if (dir > 0 && !use_seek) { mpctx->step_frames += dir; set_pause_state(mpctx, false); } else { if (!mpctx->hrseek_active) { queue_seek(mpctx, MPSEEK_FRAMESTEP, dir, 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){ mp_filter_reset(mpctx->filter_root);
reset_video_state(mpctx); reset_audio_state(mpctx); reset_subtitle_state(mpctx);
for (int n = 0; n < mpctx->num_tracks; n++) { struct track *t = mpctx->tracks[n]; // (Often, but not always, this is redundant and also done elsewhere.) if (t->dec) mp_decoder_wrapper_set_play_dir(t->dec, mpctx->play_dir); if (t->d_sub) sub_set_play_dir(t->d_sub, mpctx->play_dir); }
// May need unpause first if (mpctx->paused_for_cache) update_internal_pause_state(mpctx);
mpctx->hrseek_active = false; mpctx->hrseek_lastframe = false; mpctx->hrseek_backstep = false; mpctx->current_seek = (struct seek_params){0}; mpctx->playback_pts = MP_NOPTS_VALUE; mpctx->step_frames = 0; mpctx->ab_loop_clip = true; mpctx->restart_complete = false; mpctx->paused_for_cache = false; mpctx->cache_buffer = 100; mpctx->cache_update_pts = MP_NOPTS_VALUE;
encode_lavc_discontinuity(mpctx->encode_lavc_ctx);
update_internal_pause_state(mpctx); update_core_idle_state(mpctx);}
static double calculate_framestep_pts(MPContext *mpctx, double current_time, int step_frames){ // Crude guess at the pts. Use current_time if step_frames is -1. int previous_frame = mpctx->num_past_frames - 1; int offset = step_frames == -1 ? 0 : step_frames; double pts = mpctx->past_frames[previous_frame].approx_duration * offset; return current_time + pts;}
static void mp_seek(MPContext *mpctx, struct seek_params seek){ struct MPOpts *opts = mpctx->opts;
if (!mpctx->demuxer || !seek.type || seek.amount == MP_NOPTS_VALUE) return;
if (seek.type == MPSEEK_CHAPTER) { mpctx->last_chapter_flag = false; seek.type = MPSEEK_ABSOLUTE; } else { mpctx->last_chapter_seek = -2; }
bool hr_seek_very_exact = seek.exact == MPSEEK_VERY_EXACT; double current_time = get_playback_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_FRAMESTEP: seek_pts = calculate_framestep_pts(mpctx, current_time, (int)seek.amount); 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: MP_ASSERT_UNREACHABLE(); }
double demux_pts = seek_pts;
bool hr_seek = seek.exact != MPSEEK_KEYFRAME && seek_pts != MP_NOPTS_VALUE && (seek.exact >= MPSEEK_EXACT || opts->hr_seek == 1 || (opts->hr_seek >= 0 && seek.type == MPSEEK_ABSOLUTE) || (opts->hr_seek == 2 && (!mpctx->vo_chain || mpctx->vo_chain->is_sparse)));
// 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; }
int play_dir = opts->play_dir; if (play_dir < 0) demux_flags |= SEEK_SATAN;
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 * play_dir; demux_flags = (demux_flags | SEEK_HR) & ~SEEK_FORWARD; // For HR seeks in backward playback mode, the correct seek rounding // direction is forward instead of backward. if (play_dir < 0) demux_flags |= SEEK_FORWARD; }
if (!mpctx->demuxer->seekable) demux_flags |= SEEK_CACHED;
demux_flags |= SEEK_BLOCK;
if (!demux_seek(mpctx->demuxer, demux_pts, demux_flags)) { if (!mpctx->demuxer->seekable) { MP_ERR(mpctx, "Cannot seek in this stream.\n"); MP_ERR(mpctx, "You can force it with '--force-seekable=yes'.\n"); } return; }
mpctx->play_dir = play_dir;
// 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, demux_flags & (SEEK_SATAN | SEEK_BLOCK)); } }
if (!(seek.flags & MPSEEK_FLAG_NOFLUSH)) clear_audio_output_buffers(mpctx);
reset_playback_state(mpctx);
demux_block_reading(mpctx->demuxer, false); for (int t = 0; t < mpctx->num_tracks; t++) { struct track *track = mpctx->tracks[t]; if (track->selected && track->demuxer) demux_block_reading(track->demuxer, false); }
/* 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_backstep = seek.type == MPSEEK_FRAMESTEP && seek.amount == -1; mpctx->hrseek_pts = seek_pts * mpctx->play_dir;
// allow decoder to drop frames before hrseek_pts bool hrseek_framedrop = !hr_seek_very_exact && opts->hr_seek_framedrop;
MP_VERBOSE(mpctx, "hr-seek, skipping to %f%s%s\n", mpctx->hrseek_pts, hrseek_framedrop ? "" : " (no framedrop)", mpctx->hrseek_backstep ? " (backstep)" : "");
for (int n = 0; n < mpctx->num_tracks; n++) { struct track *track = mpctx->tracks[n]; struct mp_decoder_wrapper *dec = track->dec; if (dec && hrseek_framedrop) mp_decoder_wrapper_set_start_pts(dec, mpctx->hrseek_pts); } }
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);
update_ab_loop_clip(mpctx);
mpctx->current_seek = seek; redraw_subs(mpctx);}
// 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);
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_FRAMESTEP: case MPSEEK_CHAPTER: *seek = (struct seek_params) { .type = type, .amount = amount, .exact = exact, .flags = flags, }; return; case MPSEEK_NONE: *seek = (struct seek_params){ 0 }; return; } MP_ASSERT_UNREACHABLE();}
void execute_queued_seek(struct MPContext *mpctx){ if (mpctx->seek.type) { bool queued_hr_seek = mpctx->seek.exact != MPSEEK_KEYFRAME; // Let explicitly imprecise seeks cancel precise seeks: if (mpctx->hrseek_active && !queued_hr_seek) 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 (instead // of never updating the screen). if ((mpctx->seek.flags & MPSEEK_FLAG_DELAY) && mp_time_sec() - mpctx->start_timestamp < 0.3) { // Wait until a video frame is available and has been shown. if (mpctx->video_status < STATUS_PLAYING) return; // On A/V hr-seeks, always wait for the full result, to avoid corner // cases when seeking past EOF (we want it to determine that EOF // actually happened, instead of overwriting it with the new seek). if (mpctx->hrseek_active && queued_hr_seek && mpctx->vo_chain && mpctx->ao_chain && !mpctx->restart_complete) 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;}
// Return approximate PTS of first frame played. This can be completely wrong// for a number of reasons in a number of situations.double get_start_time(struct MPContext *mpctx, int dir){ double res = 0; if (mpctx->demuxer) { if (!mpctx->opts->rebase_start_time) res += mpctx->demuxer->start_time; if (dir < 0) res += MPMAX(mpctx->demuxer->duration, 0); } return res;}
double get_current_time(struct MPContext *mpctx){ if (!mpctx->demuxer) return MP_NOPTS_VALUE; if (mpctx->playback_pts != MP_NOPTS_VALUE) return mpctx->playback_pts * mpctx->play_dir; return mpctx->last_seek_pts;}
double get_playback_time(struct MPContext *mpctx){ double cur = get_current_time(mpctx); // During seeking, the time corresponds to the last seek time - apply some // cosmetics to it. if (cur != MP_NOPTS_VALUE && mpctx->playback_pts == MP_NOPTS_VALUE) { double length = get_time_length(mpctx); if (length >= 0) cur = MPCLAMP(cur, 0, length); } // Force to 0 if this is not MP_NOPTS_VALUE. if (cur != MP_NOPTS_VALUE && cur < 0) cur = 0.0; 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 ret = -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 > MPMAX(0, len)) endpos = MPMAX(0, len); if (endpos < startpos) endpos = startpos; start = startpos; len = endpos - startpos; } double pos = get_current_time(mpctx); if (len > 0) ret = MPCLAMP((pos - start) / len, 0, 1); if (ret < 0) { int64_t size = demuxer->filesize; if (size > 0 && demuxer->filepos >= 0) ret = MPCLAMP(demuxer->filepos / (double)size, 0, 1); } if (use_range) { if (mpctx->opts->play_frames > 0) ret = MPMAX(ret, 1.0 - mpctx->max_frames / (double) mpctx->opts->play_frames); } return ret;}
// -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 mpctx->last_chapter_flag ? mpctx->last_chapter_seek : 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;}
// If the current playback position (or seek target) falls before the B// position, actually make playback loop when reaching the B point. The// intention is that you can seek out of the ab-loop range.void update_ab_loop_clip(struct MPContext *mpctx){ double pts = get_current_time(mpctx); double ab[2]; mpctx->ab_loop_clip = pts != MP_NOPTS_VALUE && get_ab_loop_times(mpctx, ab) && pts * mpctx->play_dir <= ab[1] * mpctx->play_dir;}
static void handle_osd_redraw(struct MPContext *mpctx){ if (!mpctx->video_out || !mpctx->video_out->config_ok || (mpctx->playing && mpctx->stop_play)) 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_sparse; 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 clear_underruns(struct MPContext *mpctx){ if (mpctx->ao_chain && mpctx->ao_chain->underrun) { mpctx->ao_chain->underrun = false; mp_wakeup_core(mpctx); }
if (mpctx->vo_chain && mpctx->vo_chain->underrun) { mpctx->vo_chain->underrun = false; mp_wakeup_core(mpctx); }}
static void handle_update_cache(struct MPContext *mpctx){ bool force_update = false; struct MPOpts *opts = mpctx->opts;
if (!mpctx->demuxer || mpctx->encode_lavc_ctx) { clear_underruns(mpctx); return; }
double now = mp_time_sec();
struct demux_reader_state s; demux_get_reader_state(mpctx->demuxer, &s);
mpctx->demux_underrun |= s.underrun;
int cache_buffer = 100; bool use_pause_on_low_cache = opts->cache_pause && mpctx->play_dir > 0;
if (!mpctx->restart_complete) { // Audio or video is restarting, and initial buffering is enabled. Make // sure we actually restart them in paused mode, so no audio gets // dropped and video technically doesn't start yet. use_pause_on_low_cache &= opts->cache_pause_initial && (mpctx->video_status == STATUS_READY || mpctx->audio_status == STATUS_READY); }
bool is_low = use_pause_on_low_cache && !s.idle && s.ts_info.duration < opts->cache_pause_wait;
// Enter buffering state only if there actually was an underrun (or if // initial caching before playback restart is used). bool need_wait = is_low; if (is_low && !mpctx->paused_for_cache && mpctx->restart_complete) { // Wait only if an output underrun was registered. (Or if there is no // underrun detection.) bool output_underrun = false;
if (mpctx->ao_chain) output_underrun |= mpctx->ao_chain->underrun; if (mpctx->vo_chain) output_underrun |= mpctx->vo_chain->underrun;
// Output underruns could be sporadic (unrelated to demuxer buffer state // and for example caused by slow decoding), so use a past demuxer // underrun as indication that the underrun was possibly due to a // demuxer underrun. need_wait = mpctx->demux_underrun && output_underrun; }
// Let the underrun flag "stick" around until the cache has fully recovered. // See logic where demux_underrun is used. if (!is_low) mpctx->demux_underrun = false;
if (mpctx->paused_for_cache != need_wait) { mpctx->paused_for_cache = need_wait; update_internal_pause_state(mpctx); force_update = true; if (mpctx->paused_for_cache) mpctx->cache_stop_time = now; }
if (!mpctx->paused_for_cache) clear_underruns(mpctx);
if (mpctx->paused_for_cache) { cache_buffer = 100 * MPCLAMP(s.ts_info.duration / opts->cache_pause_wait, 0, 0.99); mp_set_timeout(mpctx, 0.2); }
// Also update cache properties. bool busy = !s.idle; if (fabs(mpctx->cache_update_pts - mpctx->playback_pts) >= 1.0) busy = true; 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 == 100) != (cache_buffer == 100)) { if (cache_buffer < 100) { MP_VERBOSE(mpctx, "Enter buffering (buffer went from %d%% -> %d%%) [%fs].\n", mpctx->cache_buffer, cache_buffer, s.ts_info.duration); } else { double t = now - mpctx->cache_stop_time; MP_VERBOSE(mpctx, "End buffering (waited %f secs) [%fs].\n", t, s.ts_info.duration); } } else { MP_VERBOSE(mpctx, "Still buffering (buffer went from %d%% -> %d%%) [%fs].\n", mpctx->cache_buffer, cache_buffer, s.ts_info.duration); } mpctx->cache_buffer = cache_buffer; force_update = true; }
if (s.eof && !busy) prefetch_next(mpctx);
if (force_update) { mpctx->cache_update_pts = mpctx->playback_pts; 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_update_subtitles(struct MPContext *mpctx){ if (mpctx->video_status == STATUS_EOF) { update_subtitles(mpctx, mpctx->playback_pts); return; }
for (int n = 0; n < mpctx->num_tracks; n++) { struct track *track = mpctx->tracks[n]; if (track->type == STREAM_SUB && !track->demuxer_ready) { update_subtitles(mpctx, mpctx->playback_pts); break; } }}
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_DPI) mp_notify(mpctx, MP_EVENT_WIN_STATE2, NULL); if (events & VO_EVENT_FOCUS) mp_notify(mpctx, MP_EVENT_FOCUS, NULL); if (events & VO_EVENT_AMBIENT_LIGHTING_CHANGED) mp_notify(mpctx, MP_EVENT_AMBIENT_LIGHTING_CHANGED, NULL);}
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){ if (mpctx->stop_play != AT_END_OF_FILE) return;
double target = MP_NOPTS_VALUE; enum seek_precision prec = MPSEEK_DEFAULT;
double ab[2]; if (get_ab_loop_times(mpctx, ab) && mpctx->ab_loop_clip) { if (mpctx->remaining_ab_loops > 0) { mpctx->remaining_ab_loops--; mp_notify_property(mpctx, "remaining-ab-loops"); } target = ab[0]; prec = MPSEEK_EXACT; } else if (mpctx->remaining_file_loops) { if (mpctx->remaining_file_loops > 0) { mpctx->remaining_file_loops--; mp_notify_property(mpctx, "remaining-file-loops"); } target = get_start_time(mpctx, mpctx->play_dir); }
if (target != MP_NOPTS_VALUE) { if (!mpctx->shown_aframes && !mpctx->shown_vframes) { MP_WARN(mpctx, "No media data to loop.\n"); return; }
mpctx->stop_play = KEEP_PLAYING; set_osd_function(mpctx, OSD_FFW); mark_seek(mpctx);
// Assumes execute_queued_seek() happens before next audio/video is // attempted to be decoded or filtered. queue_seek(mpctx, MPSEEK_ABSOLUTE, target, prec, MPSEEK_FLAG_NOFLUSH); }}
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 = MP_NOPTS_VALUE; if (mpctx->play_dir > 0) { end = get_play_end_pts(mpctx); if (end == MP_NOPTS_VALUE) end = get_time_length(mpctx); } else { end = get_start_time(mpctx, 1); } 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 = INFINITY * mpctx->play_dir; 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->audio_status = STATUS_EOF; mpctx->video_status = STATUS_EOF; } } if (opts->keep_open_pause) { if (mpctx->ao && ao_is_playing(mpctx->ao)) return; 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, MP_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->stop_play || 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, .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; } }
// Use a 16:9 aspect ratio so that fullscreen on a 16:9 screen will not // have vertical margins, which can lead to a different size or position // of subtitles than with 16:9 videos. int w = 960; int h = 540; struct mp_image_params p = { .imgfmt = config_format, .w = w, .h = h, .p_w = 1, .p_h = 1, .force_window = true, }; if (vo_reconfig(vo, &p) < 0) goto err; struct track *track = mpctx->current_track[0][STREAM_VIDEO]; update_content_type(mpctx, track); 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; m_config_notify_change_opt_ptr(mpctx->mconfig, &mpctx->opts->force_vo); 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_PLAYING && mpctx->video_status != STATUS_DRAINING) || 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_sparse && 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); } else if (mpctx->video_status == STATUS_EOF && mpctx->audio_status == STATUS_EOF) { double apts = playing_audio_pts(mpctx); double vpts = mpctx->video_pts; double mpts = MP_PTS_MAX(apts, vpts); if (mpts != MP_NOPTS_VALUE) mpctx->playback_pts = mpts; }}
// 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;
handle_update_cache(mpctx);
if (mpctx->video_status == STATUS_READY) { mpctx->video_status = STATUS_PLAYING; get_relative_time(mpctx); mp_wakeup_core(mpctx); MP_DBG(mpctx, "starting video playback\n"); }
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); mpctx->seek.flags &= ~MPSEEK_FLAG_DELAY; // immediately execute_queued_seek(mpctx); return; }
audio_start_ao(mpctx); }
if (!mpctx->restart_complete) { mpctx->hrseek_active = false; mpctx->restart_complete = true; mpctx->current_seek = (struct seek_params){0}; 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_playing_msg_duration ? opts->osd_playing_msg_duration : opts->osd_duration, "%s", msg); talloc_free(msg); } } mpctx->playing_msg_shown = true; mp_wakeup_core(mpctx); update_ab_loop_clip(mpctx); MP_VERBOSE(mpctx, "playback restart complete @ %f, audio=%s, video=%s%s\n", mpctx->playback_pts, mp_status_str(mpctx->audio_status), mp_status_str(mpctx->video_status), get_internal_paused(mpctx) ? " (paused)" : "");
// To avoid strange effects when using relative seeks, especially if // there are no proper audio & video timestamps (seeks after EOF). double length = get_time_length(mpctx); if (mpctx->last_seek_pts != MP_NOPTS_VALUE && length >= 0) mpctx->last_seek_pts = MPCLAMP(mpctx->last_seek_pts, 0, length);
// Continuous seeks past EOF => treat as EOF instead of repeating seek. if (mpctx->seek.type == MPSEEK_RELATIVE && mpctx->seek.amount > 0 && mpctx->video_status == STATUS_EOF && mpctx->audio_status == STATUS_EOF) mpctx->seek = (struct seek_params){0}; }}
static void handle_eof(struct MPContext *mpctx){ if (mpctx->seek.type) return; // for proper keep-open operation
/* 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) && !mpctx->vo_chain->is_coverart; /* 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_clipboard_updates(struct MPContext *mpctx){ if (mp_clipboard_data_changed(mpctx->clipboard)) mp_notify_property(mpctx, "clipboard");}
void run_playloop(struct MPContext *mpctx){ if (encode_lavc_didfail(mpctx->encode_lavc_ctx)) { mpctx->stop_play = PT_ERROR; return; }
update_demuxer_properties(mpctx);
handle_cursor_autohide(mpctx); handle_vo_events(mpctx); handle_command_updates(mpctx);
if (mpctx->lavfi && mp_filter_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);
handle_clipboard_updates(mpctx);
update_osd_msg(mpctx);
handle_update_subtitles(mpctx);
handle_each_frame_screenshot(mpctx);
handle_eof(mpctx);
handle_loop_file(mpctx);
handle_keep_open(mpctx);
handle_sstep(mpctx);
update_core_idle_state(mpctx);
execute_queued_seek(mpctx);
if (mpctx->stop_play) return;
handle_osd_redraw(mpctx);
if (mp_filter_graph_run(mpctx->filter_root)) mp_wakeup_core(mpctx);
mp_wait_events(mpctx);
handle_update_cache(mpctx);
mp_process_input(mpctx);
handle_chapter_change(mpctx);
handle_force_window(mpctx, false);}
void mp_idle(struct MPContext *mpctx){ handle_dummy_ticks(mpctx); handle_clipboard_updates(mpctx); mp_wait_events(mpctx); mp_process_input(mpctx); handle_command_updates(mpctx); handle_update_cache(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->stop_play == PT_STOP) { 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); }}