lavc: set defaults in internal codec frames

This is required specifically for setting frame->format to -1,
otherwise it will be set to 0 = PIX_FMT_YUV420P and code reading
the format from the output decoded frame will get misled.

In particular fix regressions occurring with the pending vsrc_buffer
patch.

1 files changed, 1 insertions, 0 deletions

diff --git a/libavcodec/bfi.c b/libavcodec/bfi.c
index e0b0c68e8b..9e40b86e50 100644
--- a/libavcodec/bfi.c
+++ b/libavcodec/bfi.c
@@ -41,6 +41,7 @@ static av_cold int bfi_decode_init(AVCodecContext * avctx)
 {
     BFIContext *bfi = avctx->priv_data;
     avctx->pix_fmt = PIX_FMT_PAL8;
+    avcodec_get_frame_defaults(&bfi->frame);
     bfi->dst = av_mallocz(avctx->width * avctx->height);
     return 0;
 }