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-rw-r--r--apps/pcmbuf.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/apps/pcmbuf.c b/apps/pcmbuf.c
index 04e007f..ebb058c 100644
--- a/apps/pcmbuf.c
+++ b/apps/pcmbuf.c
@@ -722,6 +722,9 @@ static size_t find_chunk(size_t length, struct chunkdesc **chunk)
static size_t crossfade_mix_fade(int factor, size_t length, const char *buf,
size_t *out_sample, struct chunkdesc **out_chunk)
{
+ if (length == 0)
+ return 0;
+
const int16_t *input_buf = (const int16_t *)buf;
int16_t *output_buf = (int16_t *)((*out_chunk)->addr);
int16_t *chunk_end = SKIPBYTES(output_buf, (*out_chunk)->size);