demux: xspf: default psz_base to the XSPF resource location (fixes #6186, #12058)
demux: xspf: default psz_base to the XSPF resource location (fixes #6186, #12058)

Signed-off-by: Jean-Baptiste Kempf <7b85a41a628204b76aba4326273a3ccc74bd009a@videolan.org>
(cherry picked from commit 6ed9931a413ff81c8e7eb7ef73877ba4c6de6c7d)
Signed-off-by: Jean-Baptiste Kempf <7b85a41a628204b76aba4326273a3ccc74bd009a@videolan.org>

jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2,jomanmuk/vlc-2.2