ffmpeg | branch: master | Leandro Santiago <leandrosansi...@gmail.com> | Mon 
Dec 30 19:52:45 2024 +0100| [9d9ac8e2ca6bea7daecf3830a11c08bce69c3281] | 
committer: Guo Yejun

avfilter/vf_dnn_detect: fix loading anchors when labels file is set

References https://trac.ffmpeg.org/ticket/11387

Defining anchors is needed, even when a filename with the labels is set.
The issue was identified when using yolov4-tiny model using openvino.

More information about how to reproduce the bug can be found on the trac
issue referenced by this commit.

Signed-off-by: Leandro Santiago <leandrosansi...@gmail.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d9ac8e2ca6bea7daecf3830a11c08bce69c3281
---

 libavfilter/vf_dnn_detect.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/libavfilter/vf_dnn_detect.c b/libavfilter/vf_dnn_detect.c
index f4abd38ec1..09e4c69c18 100644
--- a/libavfilter/vf_dnn_detect.c
+++ b/libavfilter/vf_dnn_detect.c
@@ -695,8 +695,12 @@ static av_cold int dnn_detect_init(AVFilterContext 
*context)
     ff_dnn_set_detect_post_proc(&ctx->dnnctx, dnn_detect_post_proc);
 
     if (ctx->labels_filename) {
-        return read_detect_label_file(context);
+        ret = read_detect_label_file(context);
+        if (ret) {
+          return ret;
+        }
     }
+
     if (ctx->anchors_str) {
         ret = dnn_detect_parse_anchors(ctx->anchors_str, &ctx->anchors);
         if (!ctx->anchors) {
@@ -705,6 +709,7 @@ static av_cold int dnn_detect_init(AVFilterContext *context)
         }
         ctx->nb_anchor = ret;
     }
+
     return 0;
 }
 

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