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🎥 Command line media player
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C
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304/* * This file is part of mpv. * * mpv is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * mpv is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with mpv. If not, see <http://www.gnu.org/licenses/>. */
#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); // Relative times are an offset to the start of the file. double start = 0; if (mpctx->demuxer && !mpctx->opts->rebase_start_time) start = mpctx->demuxer->start_time;
switch (t.type) { case REL_TIME_ABSOLUTE: return t.pos; case REL_TIME_RELATIVE: if (t.pos >= 0) { return start + t.pos; } else { if (length >= 0) return start + MPMAX(length + t.pos, 0.0); } break; case REL_TIME_PERCENT: if (length >= 0) return start + length * (t.pos / 100.0); break; case REL_TIME_CHAPTER: return chapter_start_time(mpctx, t.pos); // already absolute time }
return MP_NOPTS_VALUE;}
static double get_play_end_pts_setting(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; double end = rel_time_to_abs(mpctx, opts->play_end); double length = rel_time_to_abs(mpctx, opts->play_length); if (length != MP_NOPTS_VALUE) { double start = get_play_start_pts(mpctx); if (end == MP_NOPTS_VALUE || start + length < end) end = start + length; } return end;}
// Return absolute timestamp against which currently playing media should be// clipped. Returns MP_NOPTS_VALUE if no clipping should happen.double get_play_end_pts(struct MPContext *mpctx){ double end = get_play_end_pts_setting(mpctx); double ab[2]; if (mpctx->ab_loop_clip && get_ab_loop_times(mpctx, ab)) { if (end == MP_NOPTS_VALUE || end > ab[1]) end = ab[1]; } return end;}
// Get the absolute PTS at which playback should start.// Never returns MP_NOPTS_VALUE.double get_play_start_pts(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; double res = rel_time_to_abs(mpctx, opts->play_start); if (res == MP_NOPTS_VALUE) res = get_start_time(mpctx, mpctx->play_dir); return res;}
// Get timestamps to use for AB-loop. Returns false iff any of the timestamps// are invalid and/or AB-loops are currently disabled, and set t[] to either// the user options or NOPTS on best effort basis.bool get_ab_loop_times(struct MPContext *mpctx, double t[2]){ struct MPOpts *opts = mpctx->opts; int dir = mpctx->play_dir;
t[0] = opts->ab_loop[0]; t[1] = opts->ab_loop[1];
if (!opts->ab_loop_count) return false;
if (t[0] == MP_NOPTS_VALUE || t[1] == MP_NOPTS_VALUE || t[0] == t[1]) return false;
if (t[0] * dir > t[1] * dir) MPSWAP(double, t[0], t[1]);
return true;}
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->subs_rend->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; } queue_seek(mpctx, MPSEEK_ABSOLUTE, get_current_time(mpctx), min_prec, 0);}
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_create(source_filename, STREAM_ORIGIN_DIRECT | STREAM_READ, mpctx->playback_abort, 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); } uint8_t buf[4096]; int len = stream_read(stream, buf, sizeof(buf)); if (!len) { ok &= stream->eof; break; } ok &= fwrite(buf, len, 1, dest) == 1; 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->num_entries) return; char *edl = talloc_strdup(NULL, "edl://"); for (int n = 0; n < pl->num_entries; n++) { struct playlist_entry *e = pl->entries[n]; if (n) 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);}