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🎥 Command line media player
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C
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#include <errno.h>#include <stddef.h>#include <stdbool.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <unistd.h>#include <utime.h>
#include <libavutil/md5.h>
#include "config.h"#include "mpv_talloc.h"
#include "osdep/io.h"
#include "common/global.h"#include "common/encode.h"#include "common/msg.h"#include "misc/ctype.h"#include "options/path.h"#include "options/m_config.h"#include "options/parse_configfile.h"#include "common/playlist.h"#include "options/options.h"#include "options/m_property.h"
#include "stream/stream.h"
#include "core.h"#include "command.h"
static void load_all_cfgfiles(struct MPContext *mpctx, char *section, char *filename){ char **cf = mp_find_all_config_files(NULL, mpctx->global, filename); for (int i = 0; cf && cf[i]; i++) m_config_parse_config_file(mpctx->mconfig, cf[i], section, 0); talloc_free(cf);}
// This name is used in builtin.conf to force encoding defaults (like ao/vo).#define SECT_ENCODE "encoding"
void mp_parse_cfgfiles(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts;
mp_mk_config_dir(mpctx->global, "");
m_config_t *conf = mpctx->mconfig; char *section = NULL; bool encoding = opts->encode_opts && opts->encode_opts->file && opts->encode_opts->file[0]; // In encoding mode, we don't want to apply normal config options. // So we "divert" normal options into a separate section, and the diverted // section is never used - unless maybe it's explicitly referenced from an // encoding profile. if (encoding) section = "playback-default";
load_all_cfgfiles(mpctx, NULL, "encoding-profiles.conf");
load_all_cfgfiles(mpctx, section, "mpv.conf|config");
if (encoding) m_config_set_profile(conf, SECT_ENCODE, 0);}
static int try_load_config(struct MPContext *mpctx, const char *file, int flags, int msgl){ if (!mp_path_exists(file)) return 0; MP_MSG(mpctx, msgl, "Loading config '%s'\n", file); m_config_parse_config_file(mpctx->mconfig, file, NULL, flags); return 1;}
// Set options file-local, and don't set them if the user set them via the// command line.#define FILE_LOCAL_FLAGS (M_SETOPT_BACKUP | M_SETOPT_PRESERVE_CMDLINE)
static void mp_load_per_file_config(struct MPContext *mpctx){ struct MPOpts *opts = mpctx->opts; char *confpath; char cfg[512]; const char *file = mpctx->filename;
if (opts->use_filedir_conf) { if (snprintf(cfg, sizeof(cfg), "%s.conf", file) >= sizeof(cfg)) { MP_VERBOSE(mpctx, "Filename is too long, can not load file or " "directory specific config files\n"); return; }
char *name = mp_basename(cfg);
bstr dir = mp_dirname(cfg); char *dircfg = mp_path_join_bstr(NULL, dir, bstr0("mpv.conf")); try_load_config(mpctx, dircfg, FILE_LOCAL_FLAGS, MSGL_INFO); talloc_free(dircfg);
if (try_load_config(mpctx, cfg, FILE_LOCAL_FLAGS, MSGL_INFO)) return;
if ((confpath = mp_find_config_file(NULL, mpctx->global, name))) { try_load_config(mpctx, confpath, FILE_LOCAL_FLAGS, MSGL_INFO);
talloc_free(confpath); } }}
static void mp_auto_load_profile(struct MPContext *mpctx, char *category, bstr item){ if (!item.len) return;
char t[512]; snprintf(t, sizeof(t), "%s.%.*s", category, BSTR_P(item)); m_profile_t *p = m_config_get_profile0(mpctx->mconfig, t); if (p) { MP_INFO(mpctx, "Auto-loading profile '%s'\n", t); m_config_set_profile(mpctx->mconfig, t, FILE_LOCAL_FLAGS); }}
void mp_load_auto_profiles(struct MPContext *mpctx){ mp_auto_load_profile(mpctx, "protocol", mp_split_proto(bstr0(mpctx->filename), NULL)); mp_auto_load_profile(mpctx, "extension", bstr0(mp_splitext(mpctx->filename, NULL)));
mp_load_per_file_config(mpctx);}
#define MP_WATCH_LATER_CONF "watch_later"
static bool check_mtime(const char *f1, const char *f2){ struct stat st1, st2; if (stat(f1, &st1) != 0 || stat(f2, &st2) != 0) return false; return st1.st_mtime == st2.st_mtime;}
static bool copy_mtime(const char *f1, const char *f2){ struct stat st1, st2;
if (stat(f1, &st1) != 0 || stat(f2, &st2) != 0) return false;
struct utimbuf ut = { .actime = st2.st_atime, // we want to pass this through intact .modtime = st1.st_mtime, };
if (utime(f2, &ut) != 0) return false;
return true;}
static char *mp_get_playback_resume_config_filename(struct MPContext *mpctx, const char *fname){ struct MPOpts *opts = mpctx->opts; char *res = NULL; void *tmp = talloc_new(NULL); const char *realpath = fname; bstr bfname = bstr0(fname); if (!mp_is_url(bfname)) { if (opts->ignore_path_in_watch_later_config) { realpath = mp_basename(fname); } else { char *cwd = mp_getcwd(tmp); if (!cwd) goto exit; realpath = mp_path_join(tmp, cwd, fname); } } uint8_t md5[16]; av_md5_sum(md5, realpath, strlen(realpath)); char *conf = talloc_strdup(tmp, ""); for (int i = 0; i < 16; i++) conf = talloc_asprintf_append(conf, "%02X", md5[i]);
if (!mpctx->cached_watch_later_configdir) { char *wl_dir = mpctx->opts->watch_later_directory; if (wl_dir && wl_dir[0]) { mpctx->cached_watch_later_configdir = mp_get_user_path(mpctx, mpctx->global, wl_dir); } }
if (!mpctx->cached_watch_later_configdir) { mpctx->cached_watch_later_configdir = mp_find_user_config_file(mpctx, mpctx->global, MP_WATCH_LATER_CONF); }
if (mpctx->cached_watch_later_configdir) res = mp_path_join(NULL, mpctx->cached_watch_later_configdir, conf);
exit: talloc_free(tmp); return res;}
static const char *const backup_properties[] = { "osd-level", //"loop", "speed", "options/edition", "pause", "volume", "mute", "audio-delay", //"balance", "fullscreen", "ontop", "border", "gamma", "brightness", "contrast", "saturation", "hue", "options/deinterlace", "vf", "af", "panscan", "options/aid", "options/vid", "options/sid", "sub-delay", "sub-speed", "sub-pos", "sub-visibility", "sub-scale", "sub-use-margins", "sub-ass-force-margins", "sub-ass-vsfilter-aspect-compat", "sub-style-override", "ab-loop-a", "ab-loop-b", "options/video-aspect-override", 0};
// Used to retrieve default settings, which should not be stored in the// resume config. Uses backup_properties[] meaning/order of values.// This explicitly includes values set by config files and command line.void mp_get_resume_defaults(struct MPContext *mpctx){ char **list = talloc_zero_array(mpctx, char*, MP_ARRAY_SIZE(backup_properties)); for (int i = 0; backup_properties[i]; i++) { const char *pname = backup_properties[i]; char *val = NULL; int r = mp_property_do(pname, M_PROPERTY_GET_STRING, &val, mpctx); if (r == M_PROPERTY_OK) list[i] = talloc_steal(list, val); } mpctx->resume_defaults = list;}
// Should follow what parser-cfg.c does/needsstatic bool needs_config_quoting(const char *s){ if (s[0] == '%') return true; for (int i = 0; s[i]; i++) { unsigned char c = s[i]; if (!mp_isprint(c) || mp_isspace(c) || c == '#' || c == '\'' || c == '"') return true; } return false;}
static void write_filename(struct MPContext *mpctx, FILE *file, char *filename){ if (mpctx->opts->write_filename_in_watch_later_config) { char write_name[1024] = {0}; for (int n = 0; filename[n] && n < sizeof(write_name) - 1; n++) write_name[n] = (unsigned char)filename[n] < 32 ? '_' : filename[n]; fprintf(file, "# %s\n", write_name); }}
static void write_redirect(struct MPContext *mpctx, char *path){ char *conffile = mp_get_playback_resume_config_filename(mpctx, path); if (conffile) { FILE *file = fopen(conffile, "wb"); if (file) { fprintf(file, "# redirect entry\n"); write_filename(mpctx, file, path); fclose(file); }
if (mpctx->opts->position_check_mtime && !mp_is_url(bstr0(path)) && !copy_mtime(path, conffile)) MP_WARN(mpctx, "Can't copy mtime from %s to %s\n", path, conffile);
talloc_free(conffile); }}
void mp_write_watch_later_conf(struct MPContext *mpctx){ struct playlist_entry *cur = mpctx->playing; char *conffile = NULL; if (!cur) goto exit;
struct demuxer *demux = mpctx->demuxer;
conffile = mp_get_playback_resume_config_filename(mpctx, cur->filename); if (!conffile) goto exit;
mp_mk_config_dir(mpctx->global, mpctx->cached_watch_later_configdir);
MP_INFO(mpctx, "Saving state.\n");
FILE *file = fopen(conffile, "wb"); if (!file) goto exit;
write_filename(mpctx, file, cur->filename);
double pos = get_current_time(mpctx);
if ((demux && (!demux->seekable || demux->partially_seekable)) || pos == MP_NOPTS_VALUE) { MP_INFO(mpctx, "Not seekable, or time unknown - not saving position.\n"); } else { fprintf(file, "start=%f\n", pos); } for (int i = 0; backup_properties[i]; i++) { const char *pname = backup_properties[i]; char *val = NULL; int r = mp_property_do(pname, M_PROPERTY_GET_STRING, &val, mpctx); if (r == M_PROPERTY_OK) { if (strncmp(pname, "options/", 8) == 0) pname += 8; // Only store it if it's different from the initial value. char *prev = mpctx->resume_defaults[i]; if (!prev || strcmp(prev, val) != 0) { if (needs_config_quoting(val)) { // e.g. '%6%STRING' fprintf(file, "%s=%%%d%%%s\n", pname, (int)strlen(val), val); } else { fprintf(file, "%s=%s\n", pname, val); } } } talloc_free(val); } fclose(file);
if (mpctx->opts->position_check_mtime && !mp_is_url(bstr0(cur->filename)) && !copy_mtime(cur->filename, conffile)) { MP_WARN(mpctx, "Can't copy mtime from %s to %s\n", cur->filename, conffile); }
// This allows us to recursively resume directories etc., whose entries are // expanded the first time it's "played". For example, if "/a/b/c.mkv" is // the current entry, then we want to resume this file if the user does // "mpv /a". This would expand to the directory entries in "/a", and if // "/a/a.mkv" is not the first entry, this would be played. // Here, we write resume entries for "/a" and "/a/b". // (Unfortunately, this will leave stray resume files on resume, because // obviously it resumes only from one of those paths.) for (int n = 0; n < cur->num_redirects; n++) write_redirect(mpctx, cur->redirects[n]); // And at last, for local directories, we write an entry for each path // prefix, so the user can resume from an arbitrary directory. This starts // with the first redirect (all other redirects are further prefixes). if (cur->num_redirects) { char *path = cur->redirects[0]; char tmp[4096]; if (!mp_is_url(bstr0(path)) && strlen(path) < sizeof(tmp)) { snprintf(tmp, sizeof(tmp), "%s", path); for (;;) { bstr dir = mp_dirname(tmp); if (dir.len == strlen(tmp) || !dir.len || bstr_equals0(dir, ".")) break;
tmp[dir.len] = '\0'; if (strlen(tmp) >= 2) // keep "/" mp_path_strip_trailing_separator(tmp); write_redirect(mpctx, tmp); } } }
exit: talloc_free(conffile);}
void mp_load_playback_resume(struct MPContext *mpctx, const char *file){ if (!mpctx->opts->position_resume) return; char *fname = mp_get_playback_resume_config_filename(mpctx, file); if (fname && mp_path_exists(fname)) { if (mpctx->opts->position_check_mtime && !mp_is_url(bstr0(file)) && !check_mtime(file, fname)) { talloc_free(fname); return; }
// Never apply the saved start position to following files m_config_backup_opt(mpctx->mconfig, "start"); MP_INFO(mpctx, "Resuming playback. This behavior can " "be disabled with --no-resume-playback.\n"); try_load_config(mpctx, fname, M_SETOPT_PRESERVE_CMDLINE, MSGL_V); unlink(fname); } talloc_free(fname);}
// Returns the first file that has a resume config.// Compared to hashing the playlist file or contents and managing separate// resume file for them, this is simpler, and also has the nice property// that appending to a playlist doesn't interfere with resuming (especially// if the playlist comes from the command line).struct playlist_entry *mp_check_playlist_resume(struct MPContext *mpctx, struct playlist *playlist){ if (!mpctx->opts->position_resume) return NULL; for (int n = 0; n < playlist->num_entries; n++) { struct playlist_entry *e = playlist->entries[n]; char *conf = mp_get_playback_resume_config_filename(mpctx, e->filename); bool exists = conf && mp_path_exists(conf); talloc_free(conf); if (exists) return e; } return NULL;}