vf_format: add gross mechanism for forcing scaler for testing

This sucks, but is helpful for testing.

Obviously, it would be much nicer if there were a way to specify _all_
scaler options per filter (if the user wanted), instead of always using
the global options. But this is "too hard" for now. For testing, it is
extremely convenient to select the scaler backend, so add this option,
but make clear that it could go away. We'd delete it once there is a
better mechanism for this.

1 files changed, 3 insertions, 0 deletions

diff --git a/filters/f_autoconvert.h b/filters/f_autoconvert.h
index 7cb144aa59..6d6660c46a 100644
--- a/filters/f_autoconvert.h
+++ b/filters/f_autoconvert.h
@@ -1,6 +1,7 @@
 #pragma once
 
 #include "filter.h"
+#include "video/sws_utils.h"
 
 struct mp_image;
 struct mp_image_params;
@@ -12,6 +13,8 @@ struct mp_autoconvert {
     // f->pins[0] is input, f->pins[1] is output
     struct mp_filter *f;
 
+    enum mp_sws_scaler force_scaler;
+
     // If this is set, the callback is invoked (from the process function), and
     // further data flow is blocked until mp_autoconvert_format_change_continue()
     // is called. The idea is that you can reselect the output parameters on