ffmpeg: Add display_{rotation, hflip, vflip} options

This enables overriding the rotation as well as horizontal/vertical
flip state of a specific video stream on the input side.

Additionally, switch the singular test that was utilizing the rotation
metadata to instead override the input display rotation, thus leading
to the same result.

1 files changed, 6 insertions, 0 deletions

diff --git a/fftools/ffmpeg.h b/fftools/ffmpeg.h
index 91c5cfa3ab..13a2100439 100644
--- a/fftools/ffmpeg.h
+++ b/fftools/ffmpeg.h
@@ -194,6 +194,12 @@ typedef struct OptionsContext {
     int        nb_force_fps;
     SpecifierOpt *frame_aspect_ratios;
     int        nb_frame_aspect_ratios;
+    SpecifierOpt *display_rotations;
+    int        nb_display_rotations;
+    SpecifierOpt *display_hflips;
+    int        nb_display_hflips;
+    SpecifierOpt *display_vflips;
+    int        nb_display_vflips;
     SpecifierOpt *rc_overrides;
     int        nb_rc_overrides;
     SpecifierOpt *intra_matrices;