lavfi/silencedetect: export silence info to metadata.

[ffmpeg] / libavfilter / asrc_aevalsrc.c

diff --git a/libavfilter/asrc_aevalsrc.c b/libavfilter/asrc_aevalsrc.c
index 71eadfcccccb337313658e25f73d2e91578e30e9..c8b5e02700b84fe5a7762119334c6033817efbfd 100644 (file)
--- a/libavfilter/asrc_aevalsrc.c
+++ b/libavfilter/asrc_aevalsrc.c
@@ -91,6 +91,12 @@ static int init(AVFilterContext *ctx, const char *args)
     eval->class = &aevalsrc_class;
     av_opt_set_defaults(eval);
 
+    if (!args1) {
+        av_log(ctx, AV_LOG_ERROR, "Argument is empty\n");
+        ret = args ? AVERROR(ENOMEM) : AVERROR(EINVAL);
+        goto end;
+    }
+
     /* parse expressions */
     buf = args1;
     i = 0;