mpv/player/configfiles.c

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/*
* This file is part of mpv.
*
player: change license of most core files to LGPL These files have all in common that they were fully or mostly taken from mplayer.c. (mplayer.c was a huge file that contains almost all of the playback core, until it was split into multiple parts.) This was probably the hardest part to relicense, because so much code was moved around all the time. player/audio.c still does not compile. We'll have to redo audio filtering. Once that is done, we can probably actually provide an actual LGPL configure switch. Here is a relatively detailed list of potential issues: 8d190244: author did not reply, parts were made GPL-only in a previous commit. 7882ea9b: author could not be reached, but the code is gone. wscript still has --datadir switch, but I don't think this is relevant to copyright. f197efd5: unclear origin, but I consider the code gone anyway (replaced with generic OSD mechanisms). 8337d9c2: author did not reply, but only the option still exists (under a different name), other code was removed. d8fd7131: did not reply. Disabled in a previous commit. 05258251: same author as above. Both fields actually seem to have vanished (even when tracking renames), so no action taken. d459e644, 268b2c1a: author did not reply, but we reuse only the options (with different names and slightly or fully different semantics, and completely different implementations), so I don't think this is relevant for copyright. 09e742fe, 17c39c4e: same as above. e8a173de, bff4b3ee: author could not be reached. The commands were reworked to properties, and the code outside of the TV code were moved back to the TV code. So I don't think copyright applies to the current command.c parts (mp_property_tv_color, mp_property_tv_freq, mp_property_tv_scan). The TV parts remain GPL. 0810e427: could not be reached. Disabled in a previous commit. 43744a2d: unknown author, but this was replaced by dynamic alloc (if the change is even copyrightable). 116ca0c7: unknown author; reasoning see input.c relicensing commit. e7e4d1d8: these semantics still exist, but as generic code, and this code was fully removed. f1175cd9: the author of the cited patch is unknown, and upon inspection it turns out that I was only using the idea to pause the player on EOF, so I claim it's not copyright relevant. 25affdcc: author could not be reached (yet) - but it's only a function rename, not copyrightable. 5728504c was committed by Arpi (who agreed), but hints that it might be by a different author. In fact it seems to be mostly this patch: http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2001-November/002041.html The author did not respond, but it all seems to have been removed later. It's a terrible mess though. Arpi reverted the A-V sync code at first, but left the RTC code for a while. The following commits remove these changes 100%: 14b35442, 7181a091, 31482783, 614f8475, df58e822. cehoyos did explicitly not agree to LGPL, but was involved in the following changes: c99d8fc8: applied a patch and didn't modify it, the original author agreed. 40ac0d31: author could not be reached, but all code is gone anyway. The "af" command has a similar function, but works completely different and actually reuses a mechanism older than this patch. 54350436: applied a patch, but didn't modify it, except for adding a German translation, which was removed later. a2dda036: same situation as above 240b743e: this was made GPL-only in a previous commit 7b25afd7: same as above (for now) kirijua could not be reached, but was a regular patch contributor: c2c997fd: video equalizer code move; probably not copyrightable. Is GPL due to Nick anyway. be54f481: technically, this became the audio track property later. But all what is left is the fact that you pass a track ID to it, so consider the original coypright non-relevant. 2f376d1b: this was rewritten in b7052b43, but for now we can afford to be careful, so this was marked as GPL only in a previous commit. 43844d09: remaining parts in main.c were reverted in a previous commit. anders has mostly disagreed with the LGPL relicensing. Does not want libaf to become LGPL, but made some concessions. In particular, he granted us permission to relicense 4943e9c52c and 242aa6ebd4. We also consider some of his changes remaining in mpv not relevant for copyright (such as 735de602 - we won't remove the this option completely). We will completely remove his other contributions, including the entire audio filter chain. For now, this stuff is marked as GPL only. The remaining question is how much code in player/audio.c (based on the former mplayer.c and dec_audio.c) is under his copyright. I made claims about this in a previous commit. Nick(ols) Kurshev, svn username "nick" and "nickols_k", could not be reached. He had a lot of changes in early MPlayer. It seems all of that was removed, at least in mpv. His main work, like VIDIX or libswscale work, does not exist in mpv anymore, but the changes to mplayer.c and other core parts still deserve attention: a4119f6b, fb927549, ad3529b8, e11b23dc, 5f2178be, 93c371d5: removed in b43d67e0, d1628d12, 24ed01fe, df58e822. 0a83c6ec, 104c125e, 4e067f62, aec5dcc8, b587a3d6, f3de6e6b: DR, VAA, and "tune" stuff was fully removed later on or replaced with other mechanisms. 340183b0: screenshots were redone later (the VOCTRL was even removed, with an independent implementation using the same VOCTRL a few years later), so not relevant anymore. Basically only the 's' shortcut remains (but not its implementation). 92c5c274, bffd4007, 555c6766: for now marked as GPL only in a previous commit. Might contain some trace amounts of "michael"'s copyright, who agreed to LGPL only once the core is relicensed. This will still be respected, but I don't think it matters at this in this case. (Some code touched by him was merged into mplayer.c, and then disappeared after heavy refactoring.) I tried to be as careful and as complete as possible. It can't be excluded that amends to this will be made later. This does not make the player LGPL yet.
2017-06-23 13:53:41 +00:00
* 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
player: change license of most core files to LGPL These files have all in common that they were fully or mostly taken from mplayer.c. (mplayer.c was a huge file that contains almost all of the playback core, until it was split into multiple parts.) This was probably the hardest part to relicense, because so much code was moved around all the time. player/audio.c still does not compile. We'll have to redo audio filtering. Once that is done, we can probably actually provide an actual LGPL configure switch. Here is a relatively detailed list of potential issues: 8d190244: author did not reply, parts were made GPL-only in a previous commit. 7882ea9b: author could not be reached, but the code is gone. wscript still has --datadir switch, but I don't think this is relevant to copyright. f197efd5: unclear origin, but I consider the code gone anyway (replaced with generic OSD mechanisms). 8337d9c2: author did not reply, but only the option still exists (under a different name), other code was removed. d8fd7131: did not reply. Disabled in a previous commit. 05258251: same author as above. Both fields actually seem to have vanished (even when tracking renames), so no action taken. d459e644, 268b2c1a: author did not reply, but we reuse only the options (with different names and slightly or fully different semantics, and completely different implementations), so I don't think this is relevant for copyright. 09e742fe, 17c39c4e: same as above. e8a173de, bff4b3ee: author could not be reached. The commands were reworked to properties, and the code outside of the TV code were moved back to the TV code. So I don't think copyright applies to the current command.c parts (mp_property_tv_color, mp_property_tv_freq, mp_property_tv_scan). The TV parts remain GPL. 0810e427: could not be reached. Disabled in a previous commit. 43744a2d: unknown author, but this was replaced by dynamic alloc (if the change is even copyrightable). 116ca0c7: unknown author; reasoning see input.c relicensing commit. e7e4d1d8: these semantics still exist, but as generic code, and this code was fully removed. f1175cd9: the author of the cited patch is unknown, and upon inspection it turns out that I was only using the idea to pause the player on EOF, so I claim it's not copyright relevant. 25affdcc: author could not be reached (yet) - but it's only a function rename, not copyrightable. 5728504c was committed by Arpi (who agreed), but hints that it might be by a different author. In fact it seems to be mostly this patch: http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2001-November/002041.html The author did not respond, but it all seems to have been removed later. It's a terrible mess though. Arpi reverted the A-V sync code at first, but left the RTC code for a while. The following commits remove these changes 100%: 14b35442, 7181a091, 31482783, 614f8475, df58e822. cehoyos did explicitly not agree to LGPL, but was involved in the following changes: c99d8fc8: applied a patch and didn't modify it, the original author agreed. 40ac0d31: author could not be reached, but all code is gone anyway. The "af" command has a similar function, but works completely different and actually reuses a mechanism older than this patch. 54350436: applied a patch, but didn't modify it, except for adding a German translation, which was removed later. a2dda036: same situation as above 240b743e: this was made GPL-only in a previous commit 7b25afd7: same as above (for now) kirijua could not be reached, but was a regular patch contributor: c2c997fd: video equalizer code move; probably not copyrightable. Is GPL due to Nick anyway. be54f481: technically, this became the audio track property later. But all what is left is the fact that you pass a track ID to it, so consider the original coypright non-relevant. 2f376d1b: this was rewritten in b7052b43, but for now we can afford to be careful, so this was marked as GPL only in a previous commit. 43844d09: remaining parts in main.c were reverted in a previous commit. anders has mostly disagreed with the LGPL relicensing. Does not want libaf to become LGPL, but made some concessions. In particular, he granted us permission to relicense 4943e9c52c and 242aa6ebd4. We also consider some of his changes remaining in mpv not relevant for copyright (such as 735de602 - we won't remove the this option completely). We will completely remove his other contributions, including the entire audio filter chain. For now, this stuff is marked as GPL only. The remaining question is how much code in player/audio.c (based on the former mplayer.c and dec_audio.c) is under his copyright. I made claims about this in a previous commit. Nick(ols) Kurshev, svn username "nick" and "nickols_k", could not be reached. He had a lot of changes in early MPlayer. It seems all of that was removed, at least in mpv. His main work, like VIDIX or libswscale work, does not exist in mpv anymore, but the changes to mplayer.c and other core parts still deserve attention: a4119f6b, fb927549, ad3529b8, e11b23dc, 5f2178be, 93c371d5: removed in b43d67e0, d1628d12, 24ed01fe, df58e822. 0a83c6ec, 104c125e, 4e067f62, aec5dcc8, b587a3d6, f3de6e6b: DR, VAA, and "tune" stuff was fully removed later on or replaced with other mechanisms. 340183b0: screenshots were redone later (the VOCTRL was even removed, with an independent implementation using the same VOCTRL a few years later), so not relevant anymore. Basically only the 's' shortcut remains (but not its implementation). 92c5c274, bffd4007, 555c6766: for now marked as GPL only in a previous commit. Might contain some trace amounts of "michael"'s copyright, who agreed to LGPL only once the core is relicensed. This will still be respected, but I don't think it matters at this in this case. (Some code touched by him was merged into mplayer.c, and then disappeared after heavy refactoring.) I tried to be as careful and as complete as possible. It can't be excluded that amends to this will be made later. This does not make the player LGPL yet.
2017-06-23 13:53:41 +00:00
* GNU Lesser General Public License for more details.
*
player: change license of most core files to LGPL These files have all in common that they were fully or mostly taken from mplayer.c. (mplayer.c was a huge file that contains almost all of the playback core, until it was split into multiple parts.) This was probably the hardest part to relicense, because so much code was moved around all the time. player/audio.c still does not compile. We'll have to redo audio filtering. Once that is done, we can probably actually provide an actual LGPL configure switch. Here is a relatively detailed list of potential issues: 8d190244: author did not reply, parts were made GPL-only in a previous commit. 7882ea9b: author could not be reached, but the code is gone. wscript still has --datadir switch, but I don't think this is relevant to copyright. f197efd5: unclear origin, but I consider the code gone anyway (replaced with generic OSD mechanisms). 8337d9c2: author did not reply, but only the option still exists (under a different name), other code was removed. d8fd7131: did not reply. Disabled in a previous commit. 05258251: same author as above. Both fields actually seem to have vanished (even when tracking renames), so no action taken. d459e644, 268b2c1a: author did not reply, but we reuse only the options (with different names and slightly or fully different semantics, and completely different implementations), so I don't think this is relevant for copyright. 09e742fe, 17c39c4e: same as above. e8a173de, bff4b3ee: author could not be reached. The commands were reworked to properties, and the code outside of the TV code were moved back to the TV code. So I don't think copyright applies to the current command.c parts (mp_property_tv_color, mp_property_tv_freq, mp_property_tv_scan). The TV parts remain GPL. 0810e427: could not be reached. Disabled in a previous commit. 43744a2d: unknown author, but this was replaced by dynamic alloc (if the change is even copyrightable). 116ca0c7: unknown author; reasoning see input.c relicensing commit. e7e4d1d8: these semantics still exist, but as generic code, and this code was fully removed. f1175cd9: the author of the cited patch is unknown, and upon inspection it turns out that I was only using the idea to pause the player on EOF, so I claim it's not copyright relevant. 25affdcc: author could not be reached (yet) - but it's only a function rename, not copyrightable. 5728504c was committed by Arpi (who agreed), but hints that it might be by a different author. In fact it seems to be mostly this patch: http://lists.mplayerhq.hu/pipermail/mplayer-dev-eng/2001-November/002041.html The author did not respond, but it all seems to have been removed later. It's a terrible mess though. Arpi reverted the A-V sync code at first, but left the RTC code for a while. The following commits remove these changes 100%: 14b35442, 7181a091, 31482783, 614f8475, df58e822. cehoyos did explicitly not agree to LGPL, but was involved in the following changes: c99d8fc8: applied a patch and didn't modify it, the original author agreed. 40ac0d31: author could not be reached, but all code is gone anyway. The "af" command has a similar function, but works completely different and actually reuses a mechanism older than this patch. 54350436: applied a patch, but didn't modify it, except for adding a German translation, which was removed later. a2dda036: same situation as above 240b743e: this was made GPL-only in a previous commit 7b25afd7: same as above (for now) kirijua could not be reached, but was a regular patch contributor: c2c997fd: video equalizer code move; probably not copyrightable. Is GPL due to Nick anyway. be54f481: technically, this became the audio track property later. But all what is left is the fact that you pass a track ID to it, so consider the original coypright non-relevant. 2f376d1b: this was rewritten in b7052b43, but for now we can afford to be careful, so this was marked as GPL only in a previous commit. 43844d09: remaining parts in main.c were reverted in a previous commit. anders has mostly disagreed with the LGPL relicensing. Does not want libaf to become LGPL, but made some concessions. In particular, he granted us permission to relicense 4943e9c52c and 242aa6ebd4. We also consider some of his changes remaining in mpv not relevant for copyright (such as 735de602 - we won't remove the this option completely). We will completely remove his other contributions, including the entire audio filter chain. For now, this stuff is marked as GPL only. The remaining question is how much code in player/audio.c (based on the former mplayer.c and dec_audio.c) is under his copyright. I made claims about this in a previous commit. Nick(ols) Kurshev, svn username "nick" and "nickols_k", could not be reached. He had a lot of changes in early MPlayer. It seems all of that was removed, at least in mpv. His main work, like VIDIX or libswscale work, does not exist in mpv anymore, but the changes to mplayer.c and other core parts still deserve attention: a4119f6b, fb927549, ad3529b8, e11b23dc, 5f2178be, 93c371d5: removed in b43d67e0, d1628d12, 24ed01fe, df58e822. 0a83c6ec, 104c125e, 4e067f62, aec5dcc8, b587a3d6, f3de6e6b: DR, VAA, and "tune" stuff was fully removed later on or replaced with other mechanisms. 340183b0: screenshots were redone later (the VOCTRL was even removed, with an independent implementation using the same VOCTRL a few years later), so not relevant anymore. Basically only the 's' shortcut remains (but not its implementation). 92c5c274, bffd4007, 555c6766: for now marked as GPL only in a previous commit. Might contain some trace amounts of "michael"'s copyright, who agreed to LGPL only once the core is relicensed. This will still be respected, but I don't think it matters at this in this case. (Some code touched by him was merged into mplayer.c, and then disappeared after heavy refactoring.) I tried to be as careful and as complete as possible. It can't be excluded that amends to this will be made later. This does not make the player LGPL yet.
2017-06-23 13:53:41 +00:00
* 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 <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 "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/m_config_frontend.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, "");
char *p1 = mp_get_user_path(NULL, mpctx->global, "~~home/");
char *p2 = mp_get_user_path(NULL, mpctx->global, "~~old_home/");
if (strcmp(p1, p2) != 0 && mp_path_exists(p2)) {
MP_WARN(mpctx, "Warning, two config dirs found:\n %s (main)\n"
" %s (bogus)\nYou should merge or delete the second one.\n",
p1, p2);
}
talloc_free(p1);
talloc_free(p2);
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(mpctx->mconfig, 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;
}
// 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);
}
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);
bool write_start = true;
double pos = get_current_time(mpctx);
if ((demux && (!demux->seekable || demux->partially_seekable)) ||
pos == MP_NOPTS_VALUE)
{
write_start = false;
MP_INFO(mpctx, "Not seekable, or time unknown - not saving position.\n");
}
char **watch_later_options = mpctx->opts->watch_later_options;
for (int i = 0; watch_later_options && watch_later_options[i]; i++) {
char *pname = watch_later_options[i];
// Always save start if we have it in the array.
if (write_start && strcmp(pname, "start") == 0) {
fprintf(file, "%s=%f\n", pname, pos);
continue;
}
// Only store it if it's different from the initial value.
if (m_config_watch_later_backup_opt_changed(mpctx->mconfig, pname)) {
char *val = NULL;
mp_property_do(pname, M_PROPERTY_GET_STRING, &val, mpctx);
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);
}
command: add delete-watch-later-config This introduces the delete-watch-later-config command, to complement write-watch-later-config. This is an alternative to #8141. The general problem that this change is attempting to help solve has been described in #336, #3169 and #6574. Though persistent playback position of a single file is generally a solved problem, this is not the case for playlists, as described in #8138. The motivation is facilitating intermittent playback of very large playlists, consisting of hundreds of entries each many hours long. Though the current "watch later" mechanism works well - provided that the files each occur only once in that playlist, and are played only via that playlist - the biggest issue is that the position is lost completely should mpv exit uncleanly (e.g. due to a power failure). Existing workarounds (in the form of Lua scripts which call write-watch-later-config periodically) fail in the playlist case, due to the mechanism used by mpv to determine where within a playlist to resume playback from. The missing puzzle piece needed to allow scripts to implement a complete solution to this problem is simply a way to clean up the watch-later configuration that the script asked mpv to write using write-watch-later-config. With that in place, scripts can then register an end-file event listener, check the stop playback reason, and in the "eof" and "stop" case, invoke delete-watch-later-config to delete any saved positions written by write-watch-later-config. The script can then proceed to immediately write a new one when the next file is loaded, which altogether allows mpv to resume from the correct playlist and file position upon next startup. Because events are delivered and executed asynchronously, delete-watch-later-config takes an optional filename argument, to allow scripts to clear watch-later configuration for files after mpv had already moved on from playing them and proceeded to another file. A Lua script which makes use of this change can be found here: https://gist.github.com/CyberShadow/2f71a97fb85ed42146f6d9f522bc34ef (A modification of the one written by @Hakkin, in that this one takes advantage of the new command, and also saves the state immediately when a new file is loaded.)
2020-10-22 16:25:20 +00:00
void mp_delete_watch_later_conf(struct MPContext *mpctx, const char *file)
{
if (!file) {
struct playlist_entry *cur = mpctx->playing;
if (!cur)
return;
file = cur->filename;
if (!file)
return;
}
char *fname = mp_get_playback_resume_config_filename(mpctx, file);
if (fname)
unlink(fname);
talloc_free(fname);
}
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 &&
2020-01-26 13:29:48 +00:00
!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;
}