avcodec/dcadec: Treat the input packet's data as const

A decoder's input packet need not be writable, so we must not modify
the data.

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/libavcodec/dca_lbr.h b/libavcodec/dca_lbr.h
index db7a676c31..9e1abec0b4 100644
--- a/libavcodec/dca_lbr.h
+++ b/libavcodec/dca_lbr.h
@@ -124,7 +124,7 @@ typedef struct DCALbrDecoder {
     DCADSPContext       *dcadsp;
 } DCALbrDecoder;
 
-int ff_dca_lbr_parse(DCALbrDecoder *s, uint8_t *data, DCAExssAsset *asset);
+int ff_dca_lbr_parse(DCALbrDecoder *s, const uint8_t *data, DCAExssAsset *asset);
 int ff_dca_lbr_filter_frame(DCALbrDecoder *s, AVFrame *frame);
 av_cold void ff_dca_lbr_flush(DCALbrDecoder *s);
 av_cold void ff_dca_lbr_init_tables(void);