IPU is intra-only.
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/mpeg12dec.c | 16 ++--------------
1 file changed, 2 insertions(+), 14 deletions(-)
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index e3f2dd8af7..097e4ba19a 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -2751,13 +2751,8 @@ static int ipu_decode_frame(AVCodecContext *avctx,
AVFrame *frame,
m->intra_vlc_format = !!(s->flags & 0x20);
m->alternate_scan = !!(s->flags & 0x10);
- if (s->flags & 0x10) {
- ff_init_scantable(m->idsp.idct_permutation, &m->inter_scantable,
ff_alternate_vertical_scan);
- ff_init_scantable(m->idsp.idct_permutation, &m->intra_scantable,
ff_alternate_vertical_scan);
- } else {
- ff_init_scantable(m->idsp.idct_permutation, &m->inter_scantable,
ff_zigzag_direct);
- ff_init_scantable(m->idsp.idct_permutation, &m->intra_scantable,
ff_zigzag_direct);
- }
+ ff_init_scantable(m->idsp.idct_permutation, &m->intra_scantable,
+ s->flags & 0x10 ? ff_alternate_vertical_scan :
ff_zigzag_direct);
m->last_dc[0] = m->last_dc[1] = m->last_dc[2] = 1 << (7 + (s->flags & 3));
m->qscale = 1;
@@ -2846,13 +2841,6 @@ static av_cold int ipu_decode_init(AVCodecContext *avctx)
m->chroma_intra_matrix[j] = v;
}
- for (int i = 0; i < 64; i++) {
- int j = m->idsp.idct_permutation[i];
- int v = ff_mpeg1_default_non_intra_matrix[i];
- m->inter_matrix[j] = v;
- m->chroma_inter_matrix[j] = v;
- }
-
return 0;
}
--
2.40.1
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