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authorGyan Doshi <ffmpeg@gyani.pro>2022-04-10 11:27:27 +0530
committerGyan Doshi <ffmpeg@gyani.pro>2022-04-12 15:20:10 +0530
commit1405b65d22d8e05ae8bb74fc13e275be2ae6b9f9 (patch)
treed6a4e34275a17c5ab4189ab1e11ec285e90c03e4
parent1047fedd0f59801fa3e7f343ad36bb59007e2412 (diff)
downloadffmpeg-1405b65d22d8e05ae8bb74fc13e275be2ae6b9f9.tar.gz
avfilter/lensfun: add option db_path
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.
-rw-r--r--doc/filters.texi4
-rw-r--r--libavfilter/vf_lensfun.c8
2 files changed, 9 insertions, 3 deletions
diff --git a/doc/filters.texi b/doc/filters.texi
index 24c2243b2a..c04537e2d6 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -14700,6 +14700,10 @@ 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;
}