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🎥 Command line media player
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#include <stddef.h>#include <stdbool.h>#include <errno.h>#include <assert.h>
#include "config.h"#include "mpv_talloc.h"
#include "osdep/io.h"#include "osdep/timer.h"#include "osdep/threads.h"
#include "common/msg.h"#include "options/options.h"#include "options/m_property.h"#include "options/m_config.h"#include "common/common.h"#include "common/global.h"#include "common/encode.h"#include "common/playlist.h"#include "input/input.h"
#include "audio/out/ao.h"#include "demux/demux.h"#include "stream/stream.h"#include "video/out/vo.h"
#include "core.h"#include "command.h"
double rel_time_to_abs(struct MPContext *mpctx, struct m_rel_time t){ double length = get_time_length(mpctx); // declaration up here because of C grammar quirk double chapter_start_pts; switch (t.type) { case REL_TIME_ABSOLUTE: return t.pos; case REL_TIME_RELATIVE: if (t.pos >= 0) { return t.pos; } else { if (length >= 0) return MPMAX(length + t.pos, 0.0); } break; case REL_TIME_PERCENT: if (length >= 0) return length * (t.pos / 100.0); break; case REL_TIME_CHAPTER: chapter_start_pts = chapter_start_time(mpctx, t.pos); if (chapter_start_pts != MP_NOPTS_VALUE){ /* * rel_time_to_abs always returns rebased timetamps, * even with --rebase-start-time=no. (See the above two * cases.) chapter_start_time values are not rebased without * --rebase-start-time=yes, so we need to rebase them * here to be consistent with the rest of rel_time_to_abs. */ if (mpctx->demuxer && !mpctx->opts->rebase_start_time){ chapter_start_pts -= mpctx->demuxer->start_time; } return chapter_start_pts; } break; } return MP_NOPTS_VALUE;}
double get_play_end_pts(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; double end = MP_NOPTS_VALUE; if (opts->play_end.type) { end = rel_time_to_abs(mpctx, opts->play_end); } if (opts->play_length.type) { double start = get_play_start_pts(mpctx); if (start == MP_NOPTS_VALUE) start = 0; double length = rel_time_to_abs(mpctx, opts->play_length); if (length != MP_NOPTS_VALUE && (end == MP_NOPTS_VALUE || start + length < end)) end = start + length; } if (opts->chapterrange[1] > 0) { double cend = chapter_start_time(mpctx, opts->chapterrange[1]); if (cend != MP_NOPTS_VALUE && (end == MP_NOPTS_VALUE || cend < end)) end = cend; } // even though MP_NOPTS_VALUE is currently negative // it doesn't necessarily have to remain that way double ab_loop_start_time = get_ab_loop_start_time(mpctx); if (mpctx->ab_loop_clip && opts->ab_loop[1] != MP_NOPTS_VALUE && (ab_loop_start_time == MP_NOPTS_VALUE || opts->ab_loop[1] > ab_loop_start_time)) { if (end == MP_NOPTS_VALUE || end > opts->ab_loop[1]) end = opts->ab_loop[1]; } return end;}
/** * Get the rebased PTS for which playback should start. * The order of priority is as follows: * 1. --start, if set. * 2. The start chapter, if set. * 3. MP_NOPTS_VALUE. * If unspecified, return MP_NOPTS_VALUE. * Does not return zero unless the start time is explicitly set to zero. */double get_play_start_pts(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; double play_start_pts = rel_time_to_abs(mpctx, opts->play_start); if (play_start_pts == MP_NOPTS_VALUE && opts->chapterrange[0] > 0) { double chapter_start_pts = chapter_start_time(mpctx, opts->chapterrange[0] - 1); if (chapter_start_pts != MP_NOPTS_VALUE) { /* * get_play_start_pts always returns rebased timetamps, * even with --rebase-start-time=no. chapter_start_time * values are not rebased without --rebase-start-time=yes, * so we need to rebase them here to be consistent with * the rest of get_play_start_pts. */ if (mpctx->demuxer && !mpctx->opts->rebase_start_time){ chapter_start_pts -= mpctx->demuxer->start_time; } play_start_pts = chapter_start_pts; } } return play_start_pts;}
/** * Get the time that an ab-loop seek should seek to. * The order of priority is as follows: * 1. --ab-loop-a, if set. * 2. The Playback Start PTS, if set. * 3. MP_NOPTS_VALUE. * If unspecified, return MP_NOPTS_VALUE. * Does not return zero unless the start time is explicitly set to zero. */double get_ab_loop_start_time(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; double ab_loop_start_time; if (opts->ab_loop[0] != MP_NOPTS_VALUE) { ab_loop_start_time = opts->ab_loop[0]; } else { /* * There is no check for MP_NOPTS_VALUE here * because that's exactly what we want to return * if get_play_start_pts comes up empty here. */ ab_loop_start_time = get_play_start_pts(mpctx); } return ab_loop_start_time;}
double get_track_seek_offset(struct MPContext *mpctx, struct track *track){ struct MPOpts *opts = mpctx->opts; if (track->selected) { if (track->type == STREAM_AUDIO) return -opts->audio_delay; if (track->type == STREAM_SUB) return -opts->sub_delay; } return 0;}
void issue_refresh_seek(struct MPContext *mpctx, enum seek_precision min_prec){ // let queued seeks execute at a slightly later point if (mpctx->seek.type) { mp_wakeup_core(mpctx); return; } // repeat currently ongoing seeks if (mpctx->current_seek.type) { mpctx->seek = mpctx->current_seek; mp_wakeup_core(mpctx); return; } // maybe happens when changing filters while file is loaded - ignore for now if (mpctx->playback_pts == MP_NOPTS_VALUE) return; queue_seek(mpctx, MPSEEK_ABSOLUTE, mpctx->playback_pts, min_prec, 0);}
float mp_get_cache_percent(struct MPContext *mpctx){ struct stream_cache_info info = {0}; if (mpctx->demuxer) demux_stream_control(mpctx->demuxer, STREAM_CTRL_GET_CACHE_INFO, &info); if (info.size > 0 && info.fill >= 0) return info.fill / (info.size / 100.0); return -1;}
bool mp_get_cache_idle(struct MPContext *mpctx){ struct stream_cache_info info = {0}; if (mpctx->demuxer) demux_stream_control(mpctx->demuxer, STREAM_CTRL_GET_CACHE_INFO, &info); return info.idle;}
void update_vo_playback_state(struct MPContext *mpctx){ if (mpctx->video_out && mpctx->video_out->config_ok) { struct voctrl_playback_state oldstate = mpctx->vo_playback_state; struct voctrl_playback_state newstate = { .taskbar_progress = mpctx->opts->vo->taskbar_progress, .playing = mpctx->playing, .paused = mpctx->paused, .percent_pos = get_percent_pos(mpctx), };
if (oldstate.taskbar_progress != newstate.taskbar_progress || oldstate.playing != newstate.playing || oldstate.paused != newstate.paused || oldstate.percent_pos != newstate.percent_pos) { // Don't update progress bar if it was and still is hidden if ((oldstate.playing && oldstate.taskbar_progress) || (newstate.playing && newstate.taskbar_progress)) { vo_control_async(mpctx->video_out, VOCTRL_UPDATE_PLAYBACK_STATE, &newstate); } mpctx->vo_playback_state = newstate; } } else { mpctx->vo_playback_state = (struct voctrl_playback_state){ 0 }; }}
void update_window_title(struct MPContext *mpctx, bool force){ if (!mpctx->video_out && !mpctx->ao) { talloc_free(mpctx->last_window_title); mpctx->last_window_title = NULL; return; } char *title = mp_property_expand_string(mpctx, mpctx->opts->wintitle); if (!mpctx->last_window_title || force || strcmp(title, mpctx->last_window_title) != 0) { talloc_free(mpctx->last_window_title); mpctx->last_window_title = talloc_steal(mpctx, title);
if (mpctx->video_out) vo_control(mpctx->video_out, VOCTRL_UPDATE_WINDOW_TITLE, title);
if (mpctx->ao) { ao_control(mpctx->ao, AOCONTROL_UPDATE_STREAM_TITLE, title); } } else { talloc_free(title); }}
void error_on_track(struct MPContext *mpctx, struct track *track){ if (!track || !track->selected) return; mp_deselect_track(mpctx, track); if (track->type == STREAM_AUDIO) MP_INFO(mpctx, "Audio: no audio\n"); if (track->type == STREAM_VIDEO) MP_INFO(mpctx, "Video: no video\n"); if (mpctx->opts->stop_playback_on_init_failure || !(mpctx->vo_chain || mpctx->ao_chain)) { if (!mpctx->stop_play) mpctx->stop_play = PT_ERROR; if (mpctx->error_playing >= 0) mpctx->error_playing = MPV_ERROR_NOTHING_TO_PLAY; } mp_wakeup_core(mpctx);}
int stream_dump(struct MPContext *mpctx, const char *source_filename){ struct MPOpts *opts = mpctx->opts; stream_t *stream = stream_open(source_filename, mpctx->global); if (!stream) return -1;
int64_t size = stream_get_size(stream);
FILE *dest = fopen(opts->stream_dump, "wb"); if (!dest) { MP_ERR(mpctx, "Error opening dump file: %s\n", mp_strerror(errno)); return -1; }
bool ok = true;
while (mpctx->stop_play == KEEP_PLAYING && ok) { if (!opts->quiet && ((stream->pos / (1024 * 1024)) % 2) == 1) { uint64_t pos = stream->pos; MP_MSG(mpctx, MSGL_STATUS, "Dumping %lld/%lld...", (long long int)pos, (long long int)size); } bstr data = stream_peek(stream, STREAM_MAX_BUFFER_SIZE); if (data.len == 0) { ok &= stream->eof; break; } ok &= fwrite(data.start, data.len, 1, dest) == 1; stream_skip(stream, data.len); mp_wakeup_core(mpctx); // don't actually sleep mp_idle(mpctx); // but process input }
ok &= fclose(dest) == 0; free_stream(stream); return ok ? 0 : -1;}
void merge_playlist_files(struct playlist *pl){ if (!pl->first) return; char *edl = talloc_strdup(NULL, "edl://"); for (struct playlist_entry *e = pl->first; e; e = e->next) { if (e != pl->first) edl = talloc_strdup_append_buffer(edl, ";"); // Escape if needed if (e->filename[strcspn(e->filename, "=%,;\n")] || bstr_strip(bstr0(e->filename)).len != strlen(e->filename)) { // %length% edl = talloc_asprintf_append_buffer(edl, "%%%zd%%", strlen(e->filename)); } edl = talloc_strdup_append_buffer(edl, e->filename); } playlist_clear(pl); playlist_add_file(pl, edl); talloc_free(edl);}