mirror of
https://github.com/mpv-player/mpv
synced 2025-01-17 04:22:41 +00:00
1cb9e7efb8
mpv has a very weak and very annoying policy that determines whether a
playlist should be used or not. For example, if you play a remote
playlist, you usually don't want it to be able to read local filesystem
entries. (Although for a media player the impact is small I guess.)
It's weak and annoying as in that it does not prevent certain cases
which could be interpreted as bad in some cases, such as allowing
playlists on the local filesystem to reference remote URLs. It probably
barely makes sense, but we just want to exclude some other "definitely
not a good idea" things, all while playlists generally just work, so
whatever.
The policy is:
- from the command line anything is played
- local playlists can reference anything except "unsafe" streams
("unsafe" means special stream inputs like libavfilter graphs)
- remote playlists can reference only remote URLs
- things like "memory://" and archives are "transparent" to this
This commit does... something. It replaces the weird stream flags with a
slightly clearer "origin" value, which is now consequently passed down
and used everywhere. It fixes some deviations from the described policy.
I wanted to force archives to reference only content within them, but
this would probably have been more complicated (or required different
abstractions), and I'm too lazy to figure it out, so archives are now
"transparent" (playlists within archives behave the same outside).
There may be a lot of bugs in this.
This is unfortunately a very noisy commit because:
- every stream open call now needs to pass the origin
- so does every demuxer open call (=> params param. gets mandatory)
- most stream were changed to provide the "origin" value
- the origin value needed to be passed along in a lot of places
- I was too lazy to split the commit
Fixes: #7274
107 lines
3.9 KiB
C
107 lines
3.9 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MPLAYER_PLAYLIST_H
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#define MPLAYER_PLAYLIST_H
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#include <stdbool.h>
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#include "misc/bstr.h"
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struct playlist_param {
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bstr name, value;
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};
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struct playlist_entry {
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struct playlist_entry *prev, *next;
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struct playlist *pl;
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char *filename;
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struct playlist_param *params;
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int num_params;
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char *title;
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// If the user plays a playlist, then the playlist's URL will be appended
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// as redirect to each entry. (Same for directories etc.)
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char **redirects;
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int num_redirects;
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// Set to true if playback didn't seem to work, or if the file could be
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// played only for a very short time. This is used to make playlist
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// navigation just work in case the user has unplayable files in the
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// playlist.
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bool playback_short : 1;
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// Set to true if not at least 1 frame (audio or video) could be played.
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bool init_failed : 1;
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// Entry was removed with playlist_remove (etc.), but not deallocated.
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bool removed : 1;
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// Additional refcount. Normally (reserved==0), the entry is owned by the
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// playlist, and this can be used to keep the entry alive.
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int reserved;
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// Any flags from STREAM_ORIGIN_FLAGS. 0 if unknown.
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// Used to reject loading of unsafe entries from external playlists.
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int stream_flags;
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};
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struct playlist {
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struct playlist_entry *first, *last;
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// This provides some sort of stable iterator. If this entry is removed from
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// the playlist, current is set to the next element (or NULL), and
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// current_was_replaced is set to true.
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struct playlist_entry *current;
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bool current_was_replaced;
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};
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void playlist_entry_add_param(struct playlist_entry *e, bstr name, bstr value);
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void playlist_entry_add_params(struct playlist_entry *e,
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struct playlist_param *params,
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int params_count);
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struct playlist_entry *playlist_entry_new(const char *filename);
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void playlist_insert(struct playlist *pl, struct playlist_entry *after,
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struct playlist_entry *add);
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void playlist_add(struct playlist *pl, struct playlist_entry *add);
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void playlist_remove(struct playlist *pl, struct playlist_entry *entry);
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void playlist_clear(struct playlist *pl);
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void playlist_move(struct playlist *pl, struct playlist_entry *entry,
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struct playlist_entry *at);
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void playlist_add_file(struct playlist *pl, const char *filename);
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void playlist_shuffle(struct playlist *pl);
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struct playlist_entry *playlist_get_next(struct playlist *pl, int direction);
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void playlist_add_base_path(struct playlist *pl, bstr base_path);
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void playlist_add_redirect(struct playlist *pl, const char *redirected_from);
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void playlist_transfer_entries(struct playlist *pl, struct playlist *source_pl);
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void playlist_append_entries(struct playlist *pl, struct playlist *source_pl);
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int playlist_entry_to_index(struct playlist *pl, struct playlist_entry *e);
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int playlist_entry_count(struct playlist *pl);
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struct playlist_entry *playlist_entry_from_index(struct playlist *pl, int index);
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struct mp_cancel;
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struct mpv_global;
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struct playlist *playlist_parse_file(const char *file, struct mp_cancel *cancel,
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struct mpv_global *global);
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void playlist_entry_unref(struct playlist_entry *e);
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#endif
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