Relicense some non-MPlayer source files to LGPL 2.1 or later

This covers source files which were added in mplayer2 and mpv times
only, and where all code is covered by LGPL relicensing agreements.

There are probably more files to which this applies, but I'm being
conservative here.

A file named ao_sdl.c exists in MPlayer too, but the mpv one is a
complete rewrite, and was added some time after the original ao_sdl.c
was removed. The same applies to vo_sdl.c, for which the SDL2 API is
radically different in addition (MPlayer supports SDL 1.2 only).

common.c contains only code written by me. But common.h is a strange
case: although it originally was named mp_common.h and exists in MPlayer
too, by now it contains only definitions written by uau and me. The
exceptions are the CONTROL_ defines - thus not changing the license of
common.h yet.

codec_tags.c contained once large tables generated from MPlayer's
codecs.conf, but all of these tables were removed.

From demux_playlist.c I'm removing a code fragment from someone who was
not asked; this probably could be done later (see commit 15dccc37).

misc.c is a bit complicated to reason about (it was split off mplayer.c
and thus contains random functions out of this file), but actually all
functions have been added post-MPlayer. Except get_relative_time(),
which was written by uau, but looks similar to 3 different versions of
something similar in each of the Unix/win32/OSX timer source files. I'm
not sure what that means in regards to copyright, so I've just moved it
into another still-GPL source file for now.

screenshot.c once had some minor parts of MPlayer's vf_screenshot.c, but
they're all gone.

1 files changed, 1 insertions, 1 deletions

diff --git a/player/core.h b/player/core.h
index e3397d234a..89502d4e1b 100644
--- a/player/core.h
+++ b/player/core.h
@@ -465,7 +465,6 @@ void wakeup_playloop(void *ctx);
 // misc.c
 double rel_time_to_abs(struct MPContext *mpctx, struct m_rel_time t);
 double get_play_end_pts(struct MPContext *mpctx);
-double get_relative_time(struct MPContext *mpctx);
 void merge_playlist_files(struct playlist *pl);
 float mp_get_cache_percent(struct MPContext *mpctx);
 bool mp_get_cache_idle(struct MPContext *mpctx);
@@ -490,6 +489,7 @@ void set_osd_bar_chapters(struct MPContext *mpctx, int type);
 // playloop.c
 void mp_wait_events(struct MPContext *mpctx, double sleeptime);
 void mp_process_input(struct MPContext *mpctx);
+double get_relative_time(struct MPContext *mpctx);
 void reset_playback_state(struct MPContext *mpctx);
 void pause_player(struct MPContext *mpctx);
 void unpause_player(struct MPContext *mpctx);