diff options
Diffstat (limited to 'video/filter/vf.c')
| -rw-r--r-- | video/filter/vf.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/video/filter/vf.c b/video/filter/vf.c index f286da8a4f..b7a2044ad1 100644 --- a/video/filter/vf.c +++ b/video/filter/vf.c @@ -30,6 +30,7 @@ #include "core/m_option.h" #include "core/m_struct.h" +#include "core/options.h" #include "video/img_format.h" #include "video/mp_image.h" @@ -476,6 +477,20 @@ void vf_uninit_filter_chain(vf_instance_t *vf) } } +// When cropping an image that had old_w/old_h/*d_width/*d_height to the new +// size new_w/new_h, adjust *d_width/*d_height such that the new image has +// the same pixel aspect ratio. +void vf_rescale_dsize(struct vf_instance *vf, int *d_width, int *d_height, + int old_w, int old_h, int new_w, int new_h) +{ + // No idea what this is about + if (vf->opts->screen_size_x || vf->opts->screen_size_y) + return; + + *d_width = *d_width * new_w / old_w; + *d_height = *d_height * new_h / old_h; +} + void vf_detc_init_pts_buf(struct vf_detc_pts_buf *p) { p->inpts_prev = MP_NOPTS_VALUE; |