avcodec/codec_internal: Make FFCodec.decode use AVFrame*

This increases type-safety by avoiding conversions from/through void*.
It also avoids the boilerplate "AVFrame *frame = data;" line
for non-subtitle decoders.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/libavcodec/bmvvideo.c b/libavcodec/bmvvideo.c
index 94e9734e38..baa8e37e46 100644
--- a/libavcodec/bmvvideo.c
+++ b/libavcodec/bmvvideo.c
@@ -196,11 +196,10 @@ static int decode_bmv_frame(const uint8_t *source, int src_len, uint8_t *frame,
     }
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
-                        AVPacket *pkt)
+static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
+                        int *got_frame, AVPacket *pkt)
 {
     BMVDecContext * const c = avctx->priv_data;
-    AVFrame *frame = data;
     int type, scr_off;
     int i, ret;
     uint8_t *srcptr, *outptr;