diff options
| -rw-r--r-- | doc/filters.texi | 9 | ||||
| -rw-r--r-- | libavfilter/vf_lensfun.c | 4 |
2 files changed, 12 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index 2f459dacc6..cf13a587ba 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -11417,6 +11417,15 @@ focus distance is only used for vignetting and only slightly affects the vignetting correction process. If unknown, leave it at the default value (which is 1000). +@item scale +The scale factor which is applied after transformation. After correction the +video is no longer necessarily rectangular. This parameter controls how much of +the resulting image is visible. The value 0 means that a value will be chosen +automatically such that there is little or no unmapped area in the output +image. 1.0 means that no additional scaling is done. Lower values may result +in more of the corrected image being visible, while higher values may avoid +unmapped areas in the output. + @item target_geometry The target geometry of the output image/video. The following values are valid options: diff --git a/libavfilter/vf_lensfun.c b/libavfilter/vf_lensfun.c index 901cd9ff90..3b723dd2d0 100644 --- a/libavfilter/vf_lensfun.c +++ b/libavfilter/vf_lensfun.c @@ -79,6 +79,7 @@ typedef struct LensfunContext { float focal_length; float aperture; float focus_distance; + float scale; int target_geometry; int reverse; int interpolation_type; @@ -108,6 +109,7 @@ static const AVOption lensfun_options[] = { { "focal_length", "focal length of video (zoom; constant for the duration of the use of this filter)", OFFSET(focal_length), AV_OPT_TYPE_FLOAT, {.dbl=18}, 0.0, DBL_MAX, FLAGS }, { "aperture", "aperture (constant for the duration of the use of this filter)", OFFSET(aperture), AV_OPT_TYPE_FLOAT, {.dbl=3.5}, 0.0, DBL_MAX, FLAGS }, { "focus_distance", "focus distance (constant for the duration of the use of this filter)", OFFSET(focus_distance), AV_OPT_TYPE_FLOAT, {.dbl=1000.0f}, 0.0, DBL_MAX, FLAGS }, + { "scale", "scale factor applied after corrections (0.0 means automatic scaling)", OFFSET(scale), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, DBL_MAX, FLAGS }, { "target_geometry", "target geometry of the lens correction (only when geometry correction is enabled)", OFFSET(target_geometry), AV_OPT_TYPE_INT, {.i64=LF_RECTILINEAR}, 0, INT_MAX, FLAGS, "lens_geometry" }, { "rectilinear", "rectilinear lens (default)", 0, AV_OPT_TYPE_CONST, {.i64=LF_RECTILINEAR}, 0, 0, FLAGS, "lens_geometry" }, { "fisheye", "fisheye lens", 0, AV_OPT_TYPE_CONST, {.i64=LF_FISHEYE}, 0, 0, FLAGS, "lens_geometry" }, @@ -228,7 +230,7 @@ static int config_props(AVFilterLink *inlink) lensfun->focal_length, lensfun->aperture, lensfun->focus_distance, - 0.0, + lensfun->scale, lensfun->target_geometry, lensfun_mode, lensfun->reverse); |