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🎥 Command line media player
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C
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#include <assert.h>#include <errno.h>#include <math.h>#include <stdbool.h>#include <stddef.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 "options/path.h"#include "common/common.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"
const int num_ptracks[STREAM_TYPE_COUNT] = { [STREAM_VIDEO] = 1, [STREAM_AUDIO] = 1, [STREAM_SUB] = 2,};
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 (!mpctx->remaining_ab_loops) 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) { for (int n = 0; n < num_ptracks[STREAM_SUB]; n++) { if (mpctx->current_track[n][STREAM_SUB] == track) return -opts->subs_shared->sub_delay[n]; } } } 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_content_type(struct MPContext *mpctx, struct track *track){ enum mp_content_type content_type; if (!track || !track->vo_c) { content_type = MP_CONTENT_NONE; } else if (track->image) { content_type = MP_CONTENT_IMAGE; } else { content_type = MP_CONTENT_VIDEO; } if (mpctx->video_out) vo_control(mpctx->video_out, VOCTRL_CONTENT_TYPE, &content_type);}
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; double pos = get_current_pos_ratio(mpctx, false); struct voctrl_playback_state newstate = { .taskbar_progress = mpctx->opts->vo->taskbar_progress && pos >= 0, .playing = mpctx->playing, .paused = mpctx->paused, .position = pos > 0 ? lrint(pos * UINT8_MAX) : 0, };
if (oldstate.taskbar_progress != newstate.taskbar_progress || oldstate.playing != newstate.playing || oldstate.paused != newstate.paused || oldstate.position != newstate.position) { // 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->current_track[0][STREAM_AUDIO] && !mpctx->current_track[0][STREAM_VIDEO])) { 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; bool ok = false;
char *filename = mp_get_user_path(NULL, mpctx->global, opts->stream_dump); stream_t *stream = stream_create(source_filename, STREAM_ORIGIN_DIRECT | STREAM_READ, mpctx->playback_abort, mpctx->global); if (!stream || stream->is_directory) goto done;
int64_t size = stream_get_size(stream);
FILE *dest = fopen(filename, "wb"); if (!dest) { MP_ERR(mpctx, "Error opening dump file: %s\n", mp_strerror(errno)); goto done; }
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;done: free_stream(stream); talloc_free(filename); 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_append_file(pl, edl); talloc_free(edl);}
const char *mp_status_str(enum playback_status st){ switch (st) { case STATUS_SYNCING: return "syncing"; case STATUS_READY: return "ready"; case STATUS_PLAYING: return "playing"; case STATUS_DRAINING: return "draining"; case STATUS_EOF: return "eof"; default: return "bug"; }}
bool str_in_list(bstr str, char **list){ if (!list) return false; while (*list) { if (!bstrcasecmp0(str, *list++)) return true; } return false;}
#define ADD_FLAG(ctx, dst, flag, first) do { \ bstr_xappend_asprintf(ctx, &dst, " %s%s", first ? "[" : "", flag); \ first = false; \} while(0)
char *mp_format_track_metadata(void *ctx, struct track *t, bool add_lang){ struct sh_stream *s = t->stream; bstr dst = {0};
if (t->title) bstr_xappend_asprintf(ctx, &dst, "'%s' ", t->title);
const char *codec = s ? s->codec->codec : NULL;
bstr_xappend0(ctx, &dst, "(");
if (add_lang && t->lang) bstr_xappend_asprintf(ctx, &dst, "%s ", t->lang);
bstr_xappend0(ctx, &dst, codec ? codec : "<unknown>");
if (s && s->codec->codec_profile) bstr_xappend_asprintf(ctx, &dst, " [%s]", s->codec->codec_profile); if (s && s->codec->disp_w) bstr_xappend_asprintf(ctx, &dst, " %dx%d", s->codec->disp_w, s->codec->disp_h); if (s && s->codec->fps && !t->image) { char *fps = mp_format_double(ctx, s->codec->fps, 4, false, false, true); bstr_xappend_asprintf(ctx, &dst, " %s fps", fps); } if (s && s->codec->channels.num) bstr_xappend_asprintf(ctx, &dst, " %dch", s->codec->channels.num); if (s && s->codec->samplerate) bstr_xappend_asprintf(ctx, &dst, " %d Hz", s->codec->samplerate); if (s && s->codec->bitrate > 0 && s->codec->bitrate < INT_MAX - 500) { bstr_xappend_asprintf(ctx, &dst, " %d kbps", (s->codec->bitrate + 500) / 1000); } else if (s && s->hls_bitrate > 0 && s->hls_bitrate < INT_MAX - 500) { bstr_xappend_asprintf(ctx, &dst, " %d kbps", (s->hls_bitrate + 500) / 1000); } bstr_xappend0(ctx, &dst, ")");
bool first = true; if (t->default_track) ADD_FLAG(ctx, dst, "default", first); if (t->forced_track) ADD_FLAG(ctx, dst, "forced", first); if (t->dependent_track) ADD_FLAG(ctx, dst, "dependent", first); if (t->visual_impaired_track) ADD_FLAG(ctx, dst, "visual-impaired", first); if (t->hearing_impaired_track) ADD_FLAG(ctx, dst, "hearing-impaired", first); if (t->is_external) ADD_FLAG(ctx, dst, "external", first); if (!first) bstr_xappend0(ctx, &dst, "]");
return bstrto0(ctx, dst);}
const char *mp_find_non_filename_media_title(MPContext *mpctx){ const char *name = mpctx->opts->media_title; if (name && name[0]) return name; if (mpctx->demuxer) { name = mp_tags_get_str(mpctx->demuxer->metadata, "service_name"); if (name && name[0]) return name; name = mp_tags_get_str(mpctx->demuxer->metadata, "title"); if (name && name[0]) return name; name = mp_tags_get_str(mpctx->demuxer->metadata, "icy-title"); if (name && name[0]) return name; } if (mpctx->playing && mpctx->playing->title) return mpctx->playing->title; return NULL;}