video: remove --flip

The --flip option flipped the image upside-down, by trying to use VO
support, or if not available, by inserting a video filter. I'm not sure
why it existed. Maybe it was important in ancient times when VfW based
decoders output an image this way (but even then, flipping an image is a
free operation by negating the stride).

One nice thing about this is that it provided a possible path for
implementing video orientation, which is a feature we should probably
support eventually. The important part is that it would be for free for
VOs that support it, and would work even with hardware decoding.

But for now get rid of it. It's useless, trivial, stands in the way, and
supporting video orientation would require solving other problems first.

1 files changed, 1 insertions, 1 deletions

diff --git a/video/out/vo_vdpau.c b/video/out/vo_vdpau.c
index 727fea532f..082ad1a05d 100644
--- a/video/out/vo_vdpau.c
+++ b/video/out/vo_vdpau.c
@@ -1272,7 +1272,7 @@ static int query_format(struct vo *vo, uint32_t format)
 {
     struct vdpctx *vc = vo->priv;
 
-    int flags = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_FLIP;
+    int flags = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
     if (mp_vdpau_get_format(format, NULL, NULL))
         return flags;
     int rgb_format = get_rgb_format(format);