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mirror of https://github.com/mpv-player/mpv synced 2024-12-23 07:12:39 +00:00
mpv/player/configfiles.c
wm4 35f43dfacb player: make watch later/resume work when "playing" directories
If you do "mpv /bla/", and then branch out into sub-directories using
playlist navigation, and then used quit and watch later, then playing
the same directory did not resume from the previous point. This was
because resuming is based on the path hash, so a path prefix can't be
detected when resuming the parent directory.

Solve this by writing each path prefix when playing directories is
involved. (This includes all parent paths, so interestingly, "mpv /"
would also resume in the above example.)

Something like this was requested multiple times, and I want it too.
2016-01-06 22:40:55 +01:00

423 lines
14 KiB
C

/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stddef.h>
#include <stdbool.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <libavutil/md5.h>
#include "config.h"
#include "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);
}
#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, SECT_ENCODE, "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)
{
if (!mp_path_exists(file))
return 0;
MP_INFO(mpctx, "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);
talloc_free(dircfg);
if (try_load_config(mpctx, cfg, FILE_LOCAL_FLAGS))
return;
if ((confpath = mp_find_config_file(NULL, mpctx->global, name))) {
try_load_config(mpctx, confpath, FILE_LOCAL_FLAGS);
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)
{
struct MPOpts *opts = mpctx->opts;
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);
if (opts->vo.video_driver_list)
mp_auto_load_profile(mpctx, "vo", bstr0(opts->vo.video_driver_list[0].name));
if (opts->audio_driver_list)
mp_auto_load_profile(mpctx, "ao", bstr0(opts->audio_driver_list[0].name));
}
#define MP_WATCH_LATER_CONF "watch_later"
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);
}
}
if (bstr_startswith0(bfname, "dvd://") && opts->dvd_device)
realpath = talloc_asprintf(tmp, "%s - %s", realpath, opts->dvd_device);
if ((bstr_startswith0(bfname, "br://") || bstr_startswith0(bfname, "bd://") ||
bstr_startswith0(bfname, "bluray://")) && opts->bluray_device)
realpath = talloc_asprintf(tmp, "%s - %s", realpath, opts->bluray_device);
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) {
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[] = {
"options/osd-level",
//"loop",
"options/speed",
"options/edition",
"options/pause",
"volume-restore-data",
"options/audio-delay",
//"balance",
"options/fullscreen",
"options/colormatrix",
"options/colormatrix-input-range",
"options/colormatrix-output-range",
"options/ontop",
"options/border",
"options/gamma",
"options/brightness",
"options/contrast",
"options/saturation",
"options/hue",
"options/deinterlace",
"options/vf",
"options/af",
"options/panscan",
"options/aid",
"options/vid",
"options/sid",
"options/sub-delay",
"options/sub-pos",
"options/sub-visibility",
"options/sub-scale",
"options/sub-use-margins",
"options/ass-force-margins",
"options/ass-vsfilter-aspect-compat",
"options/ass-style-override",
"options/ab-loop-a",
"options/ab-loop-b",
"options/video-aspect",
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/needs
static 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);
}
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;
if (demux && (!demux->seekable || demux->partially_seekable)) {
MP_INFO(mpctx, "Not seekable - not saving state.\n");
goto exit;
}
mp_mk_config_dir(mpctx->global, MP_WATCH_LATER_CONF);
conffile = mp_get_playback_resume_config_filename(mpctx, cur->filename);
if (!conffile)
goto exit;
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 (pos != MP_NOPTS_VALUE)
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);
// 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)) {
// 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);
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 (struct playlist_entry *e = playlist->first; e; e = e->next) {
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;
}