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/sgidec.c b/libavcodec/sgidec.c
index 8ff6b4f024..a0669590ed 100644
--- a/libavcodec/sgidec.c
+++ b/libavcodec/sgidec.c
@@ -199,12 +199,10 @@ static int read_uncompressed_sgi(unsigned char *out_buf, SgiState *s)
     return 0;
 }
 
-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)
 {
     SgiState *s = avctx->priv_data;
-    AVFrame *p = data;
     unsigned int dimension, rle;
     int ret = 0;
     uint8_t *out_buf, *out_end;