freetype: do not cache variables for relative font size, background opacity, background color, outline thickness and text color

fixes #8630
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Revert "freetype: allow on-the-fly changes of relative font size, background opacity, background color, outline thickness and text color"

This reverts commit 269a40cb.

Conflicts:
	modules/text_renderer/freetype.c
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

This commit fixes multiple regressions introduced in
2b0891bb.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Don't mess up deinterleaving if there is leftover-samples and keep
leftover samples in interleaved format. Fixes #8570

Signed-off-by: Rafaël Carré <funman@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

The new audio filter API deals with these cases automatically.

Signed-off-by: Rafaël Carré <funman@videolan.org>

The text needs to be always set, as its used by the GUI.

Never do a last minute refactoring of common parts without a build test.
Fix a typo in dvbpsi_compat.h header and ts-muxer for the move to libdvbpsi >= 1.0.0.