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-rw-r--r--libavcodec/nvdec_vc1.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/nvdec_vc1.c b/libavcodec/nvdec_vc1.c
index cf75ba5..588a5b9 100644
--- a/libavcodec/nvdec_vc1.c
+++ b/libavcodec/nvdec_vc1.c
@@ -25,13 +25,13 @@
#include "decode.h"
#include "vc1.h"
-static unsigned char get_ref_idx(AVFrame *frame)
+static int get_ref_idx(AVFrame *frame)
{
FrameDecodeData *fdd;
NVDECFrame *cf;
if (!frame || !frame->private_ref)
- return 255;
+ return -1;
fdd = (FrameDecodeData*)frame->private_ref->data;
cf = (NVDECFrame*)fdd->hwaccel_priv;
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