Module: libav
Branch: master
Commit: c9ed48e80ef807ab0c1bb946ac8db5f34d83d9c9

Author:    Niels Möller <[email protected]>
Committer: Luca Barbato <[email protected]>
Date:      Mon Mar 16 22:31:41 2015 +0100

dca: Read params->pancABIT0[param_index] only if part0 is set

Prevent a spurious read from uninitialized memory.

---

 libavcodec/dca_xll.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/dca_xll.c b/libavcodec/dca_xll.c
index 0c32d6e..5a558b8 100644
--- a/libavcodec/dca_xll.c
+++ b/libavcodec/dca_xll.c
@@ -514,8 +514,8 @@ int ff_dca_xll_decode_audio(DCAContext *s, AVFrame *frame)
             }
             for (i = 0; i < chset->channels; i++) {
                 int param_index = params->seg_type ? 0 : i;
-                int bits        = params->pancABIT0[param_index];
                 int part0       = params->nSamplPart0[param_index];
+                int bits        = part0 ? params->pancABIT0[param_index] : 0;
                 int *sample_buf = s->xll_sample_buf +
                                   (in_channel + i) * s->xll_smpl_in_seg;
 

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