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/ylc.c b/libavcodec/ylc.c
index b49b960b3a..9b19405b24 100644
--- a/libavcodec/ylc.c
+++ b/libavcodec/ylc.c
@@ -278,16 +278,14 @@ static const uint8_t table_v[] = {
     0x01, 0x00,
 };
 
-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)
 {
     int TL[4] = { 128, 128, 128, 128 };
     int L[4]  = { 128, 128, 128, 128 };
     YLCContext *s = avctx->priv_data;
     const uint8_t *buf = avpkt->data;
     int ret, x, y, toffset, boffset;
-    AVFrame * const p = data;
     GetBitContext gb;
     uint8_t *dst;