---
libavcodec/dpcm.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/libavcodec/dpcm.c b/libavcodec/dpcm.c
index 7f62b45..9b2fc25 100644
--- a/libavcodec/dpcm.c
+++ b/libavcodec/dpcm.c
@@ -179,8 +179,10 @@ static int dpcm_decode_frame(AVCodecContext *avctx, void
*data, int *data_size,
int st = s->channels - 1;
int16_t *output_samples = data;
- if (!buf_size)
+ if (!buf_size || !buf) {
+ *data_size = 0;
return 0;
+ }
/* calculate output size */
switch(avctx->codec->id) {
--
1.7.1
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