diff --git a/libswresample/swresample.c b/libswresample/swresample.c
index 4c971dc8e0d81940d08e3d28c1f07a16efcf888a..badba7b7a2f362feb9bb537f1fcf0b0f7918005d 100644
--- a/libswresample/swresample.c
+++ b/libswresample/swresample.c
@@ -369,6 +369,8 @@ av_assert0(s->out.ch_count);
     s->out_convert= swri_audio_convert_alloc(s->out_sample_fmt,
                                              s->int_sample_fmt, s->out.ch_count, NULL, 0);
 
+    if (!s->in_convert || !s->out_convert)
+        return AVERROR(ENOMEM);
 
     s->postin= s->in;
     s->preout= s->out;