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, 3 deletions

diff --git a/libavcodec/lagarith.c b/libavcodec/lagarith.c
index 39fbfab94f..2276616bb8 100644
--- a/libavcodec/lagarith.c
+++ b/libavcodec/lagarith.c
@@ -534,13 +534,12 @@ static int lag_decode_arith_plane(LagarithContext *l, uint8_t *dst,
  * @param avpkt input packet
  * @return number of consumed bytes on success or negative if decode fails
  */
-static int lag_decode_frame(AVCodecContext *avctx,
-                            void *data, int *got_frame, AVPacket *avpkt)
+static int lag_decode_frame(AVCodecContext *avctx, AVFrame *p,
+                            int *got_frame, AVPacket *avpkt)
 {
     const uint8_t *buf = avpkt->data;
     unsigned int buf_size = avpkt->size;
     LagarithContext *l = avctx->priv_data;
-    AVFrame *const p  = data;
     uint8_t frametype;
     uint32_t offset_gu = 0, offset_bv = 0, offset_ry = 9;
     uint32_t offs[4];