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/rl2.c b/libavcodec/rl2.c
index b4548c0247..37c9bf5d82 100644
--- a/libavcodec/rl2.c
+++ b/libavcodec/rl2.c
@@ -178,11 +178,9 @@ static av_cold int rl2_decode_init(AVCodecContext *avctx)
 }
 
 
-static int rl2_decode_frame(AVCodecContext *avctx,
-                            void *data, int *got_frame,
-                            AVPacket *avpkt)
+static int rl2_decode_frame(AVCodecContext *avctx, AVFrame *frame,
+                            int *got_frame, AVPacket *avpkt)
 {
-    AVFrame *frame     = data;
     const uint8_t *buf = avpkt->data;
     int ret, buf_size  = avpkt->size;
     Rl2Context *s = avctx->priv_data;