Before 998c9f15d1ca8c7489775ebcca51623b915988f1, initializing an
MpegEncContext's IDCT parts occured in ff_mpv_common_init() and this
has been called in h261_decode_frame(), not h261_decode_init().
Yet said commit factored this out of ff_mpv_common_init() and therefore
there is no reason any more not to set this during init as this commit
does.
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/h261dec.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
diff --git a/libavcodec/h261dec.c b/libavcodec/h261dec.c
index eb544e6046..0d8cd8c20d 100644
--- a/libavcodec/h261dec.c
+++ b/libavcodec/h261dec.c
@@ -79,6 +79,7 @@ static av_cold int h261_decode_init(AVCodecContext *avctx)
avctx->pix_fmt = AV_PIX_FMT_YUV420P;
h->gob_start_code_skipped = 0;
+ ff_mpv_idct_init(s);
ff_thread_once(&init_static_once, h261_decode_init_static);
@@ -595,10 +596,6 @@ static int h261_decode_frame(AVCodecContext *avctx, void
*data,
retry:
init_get_bits(&s->gb, buf, buf_size * 8);
- if (!s->context_initialized)
- // we need the IDCT permutation for reading a custom matrix
- ff_mpv_idct_init(s);
-
ret = h261_decode_picture_header(h);
/* skip if the header was thrashed */
--
2.27.0
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