Default is disabled.
---
doc/filters.texi | 3 +++
libavfilter/vf_find_rect.c | 9 ++++++++-
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/doc/filters.texi b/doc/filters.texi
index 64878e15da..5e35fa6467 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -12139,6 +12139,9 @@ Number of mipmaps, default is 3.
@item xmin, ymin, xmax, ymax
Specifies the rectangle in which to search.
+
+@item discard
+Discard frames where object is not detected. Default is disabled.
@end table
@subsection Examples
diff --git a/libavfilter/vf_find_rect.c b/libavfilter/vf_find_rect.c
index ea3b7aeee5..f9129cc140 100644
--- a/libavfilter/vf_find_rect.c
+++ b/libavfilter/vf_find_rect.c
@@ -40,6 +40,7 @@ typedef struct FOCContext {
AVFrame *obj_frame;
AVFrame *needle_frame[MAX_MIPMAPS];
AVFrame *haystack_frame[MAX_MIPMAPS];
+ int discard;
} FOCContext;
#define OFFSET(x) offsetof(FOCContext, x)
@@ -52,6 +53,7 @@ static const AVOption find_rect_options[] = {
{ "ymin", "", OFFSET(ymin), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS
},
{ "xmax", "", OFFSET(xmax), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS
},
{ "ymax", "", OFFSET(ymax), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, FLAGS
},
+ { "discard", "", OFFSET(discard), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1,
FLAGS },
{ NULL }
};
@@ -206,7 +208,12 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
}
if (best_score > foc->threshold) {
- return ff_filter_frame(ctx->outputs[0], in);
+ if (foc->discard) {
+ av_frame_free(&in);
+ return 0;
+ } else {
+ return ff_filter_frame(ctx->outputs[0], in);
+ }
}
av_log(ctx, AV_LOG_INFO, "Found at n=%lld pts_time=%f x=%d y=%d with
score=%f\n",
--
2.30.1
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