dv: Mark internal frame reference as const

Silence a warning due to frame assignment in dvenc. All uses of the
reference in dvdec are read only, except the ones in the main decoding
function, so use the frame pointer directly there.

1 files changed, 1 insertions, 1 deletions

diff --git a/libavcodec/dv.h b/libavcodec/dv.h
index b458aea..d032405 100644
--- a/libavcodec/dv.h
+++ b/libavcodec/dv.h
@@ -39,7 +39,7 @@ typedef struct DVwork_chunk {
 
 typedef struct DVVideoContext {
     const AVDVProfile *sys;
-    AVFrame         *frame;
+    const AVFrame   *frame;
     AVCodecContext  *avctx;
     uint8_t         *buf;