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/qpeg.c b/libavcodec/qpeg.c
index 658cb028ea..0f33e87de1 100644
--- a/libavcodec/qpeg.c
+++ b/libavcodec/qpeg.c
@@ -266,13 +266,11 @@ static void av_noinline qpeg_decode_inter(QpegContext *qctx, uint8_t *dst,
     }
 }
 
-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)
 {
     uint8_t ctable[128];
     QpegContext * const a = avctx->priv_data;
-    AVFrame * const p = data;
     AVFrame * const ref = a->ref;
     uint8_t* outdata;
     int delta, intra, ret;