The lensfun filter, at present, loads its database from a path hardcoded
at build time. This may not be known or available to end users.
Added option db_path allows custom path.
---
doc/filters.texi | 4 ++++
libavfilter/vf_lensfun.c | 8 +++++---
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/doc/filters.texi b/doc/filters.texi
index 6a66b0ed11..9861f43c07 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -14693,6 +14693,10 @@ required.
The model of the lens (for example, "Canon EF-S 18-55mm f/3.5-5.6 IS STM").
This
option is required.
+@item db_path
+The full path to the lens database folder. If not set, the filter will attempt
to
+load the database from the install path when the library was built. Default is
unset.
+
@item mode
The type of correction to apply. The following values are valid options:
diff --git a/libavfilter/vf_lensfun.c b/libavfilter/vf_lensfun.c
index 596daed104..35c522a723 100644
--- a/libavfilter/vf_lensfun.c
+++ b/libavfilter/vf_lensfun.c
@@ -73,7 +73,7 @@ typedef struct DistortionCorrectionThreadData {
typedef struct LensfunContext {
const AVClass *class;
- const char *make, *model, *lens_model;
+ const char *make, *model, *lens_model, *db_path;
int mode;
float focal_length;
float aperture;
@@ -97,6 +97,7 @@ static const AVOption lensfun_options[] = {
{ "make", "set camera maker", OFFSET(make), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, FLAGS },
{ "model", "set camera model", OFFSET(model), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, FLAGS },
{ "lens_model", "set lens model", OFFSET(lens_model), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, FLAGS },
+ { "db_path", "set path to database", OFFSET(db_path), AV_OPT_TYPE_STRING,
{.str=NULL}, 0, 0, FLAGS },
{ "mode", "set mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=GEOMETRY_DISTORTION}, 0,
VIGNETTING | GEOMETRY_DISTORTION | SUBPIXEL_DISTORTION, FLAGS, "mode" },
{ "vignetting", "fix lens vignetting", 0, AV_OPT_TYPE_CONST, {.i64=VIGNETTING},
0, 0, FLAGS, "mode" },
{ "geometry", "correct geometry distortion", 0, AV_OPT_TYPE_CONST,
{.i64=GEOMETRY_DISTORTION}, 0, 0, FLAGS, "mode" },
@@ -136,9 +137,10 @@ static av_cold int init(AVFilterContext *ctx)
const lfLens **lenses;
db = lf_db_create();
- if (lf_db_load(db) != LF_NO_ERROR) {
+ if ((lensfun->db_path ? lf_db_load_path(db, lensfun->db_path) :
lf_db_load(db)) != LF_NO_ERROR) {
lf_db_destroy(db);
- av_log(ctx, AV_LOG_FATAL, "Failed to load lensfun database\n");
+ av_log(ctx, AV_LOG_FATAL, "Failed to load lensfun database from %s
path\n",
+ lensfun->db_path ? lensfun->db_path : "default");
return AVERROR_INVALIDDATA;
}
