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/eamad.c b/libavcodec/eamad.c
index 239ee1b38e..e6e90d6bd7 100644
--- a/libavcodec/eamad.c
+++ b/libavcodec/eamad.c
@@ -247,14 +247,12 @@ static void calc_quant_matrix(MadContext *s, int qscale)
         s->quant_matrix[i] = (ff_inv_aanscales[i]*ff_mpeg1_default_intra_matrix[i]*qscale + 32) >> 10;
 }
 
-static int decode_frame(AVCodecContext *avctx,
-                        void *data, int *got_frame,
-                        AVPacket *avpkt)
+static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
+                        int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     int buf_size       = avpkt->size;
     MadContext *s     = avctx->priv_data;
-    AVFrame *frame    = data;
     GetByteContext gb;
     int width, height;
     int chunk_type;