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, 4 deletions

diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c
index a4cda83096..bf67f8523d 100644
--- a/libavcodec/qdrw.c
+++ b/libavcodec/qdrw.c
@@ -288,11 +288,9 @@ static int check_header(const char *buf, int buf_size)
 }
 
 
-static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *got_frame,
-                        AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, AVFrame *p,
+                        int *got_frame, AVPacket *avpkt)
 {
-    AVFrame * const p      = data;
     GetByteContext gbc;
     int colors;
     int w, h, ret;