avfilter/af_afftfilt: Set last_expr to the default

[ffmpeg] / libavfilter / af_afftfilt.c

diff --git a/libavfilter/af_afftfilt.c b/libavfilter/af_afftfilt.c
index 8c75b4f0ae894ea747c56b2289711587f877756d..8e41f52c1288cbe458c7e9e3ff4c1e64d7f2d8bb 100644 (file)
--- a/libavfilter/af_afftfilt.c
+++ b/libavfilter/af_afftfilt.c
@@ -94,7 +94,8 @@ static int config_input(AVFilterLink *inlink)
     char *saveptr = NULL;
     int ret = 0, ch, i;
     float overlap;
-    char *args, *last_expr = NULL;
+    char *args;
+    const char *last_expr = "1";
 
     s->fft  = av_fft_init(s->fft_bits, 0);
     s->ifft = av_fft_init(s->fft_bits, 1);