---
 libavcodec/adpcm.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavcodec/adpcm.c b/libavcodec/adpcm.c
index a756740..377b05a 100644
--- a/libavcodec/adpcm.c
+++ b/libavcodec/adpcm.c
@@ -802,8 +802,8 @@ static int adpcm_decode_frame(AVCodecContext *avctx, void 
*data,
         }
         break;
     case CODEC_ID_ADPCM_IMA_APC:
-        while (src < buf + buf_size) {
-            uint8_t v = *src++;
+        while (bytestream2_get_bytes_left(&gb) > 0) {
+            int v = bytestream2_get_byteu(&gb);
             *samples++ = adpcm_ima_expand_nibble(&c->status[0],  v >> 4  , 3);
             *samples++ = adpcm_ima_expand_nibble(&c->status[st], v & 0x0F, 3);
         }
-- 
1.7.2.1

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