dcaenc: fix segfault when attempting to encode with invalid samplerate

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
7 years ago · c1b282dc74
parent a1c6fc773f
commit c1b282dc74
1 changed files with 5 additions and 2 deletions
--- a/libavcodec/dcaenc.c
+++ b/libavcodec/dcaenc.c
@ -152,8 +152,11 @@ static int subband_bufer_alloc(DCAEncContext *c)

 static void subband_bufer_free(DCAEncContext *c)
 {
-    int32_t *bufer = c->subband[0][0] - DCA_ADPCM_COEFFS;
-    av_freep(&bufer);
+    if (c->subband[0][0]) {
+        int32_t *bufer = c->subband[0][0] - DCA_ADPCM_COEFFS;
+        av_free(bufer);
+        c->subband[0][0] = NULL;
+    }
 }

 static int encode_init(AVCodecContext *avctx)