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, 1 insertions, 2 deletions

diff --git a/libavcodec/agm.c b/libavcodec/agm.c
index 28b66cd30d..795b34a415 100644
--- a/libavcodec/agm.c
+++ b/libavcodec/agm.c
@@ -1094,13 +1094,12 @@ static int decode_huffman2(AVCodecContext *avctx, int header, int size)
     return 0;
 }
 
-static int decode_frame(AVCodecContext *avctx, void *data,
+static int decode_frame(AVCodecContext *avctx, AVFrame *frame,
                         int *got_frame, AVPacket *avpkt)
 {
     AGMContext *s = avctx->priv_data;
     GetBitContext *gb = &s->gb;
     GetByteContext *gbyte = &s->gbyte;
-    AVFrame *frame = data;
     int w, h, width, height, header;
     unsigned compressed_size;
     long skip;