It only sets [yc]_dc_scale_table and these tables are only
read in ff_set_qscale(); but the MPEG-1/2 decoders don't call
ff_set_qscale() at all.
(Furthermore, given that intra_dc_precision is always zero
for a decoder at this point, ff_mpeg12_common_init()
actually set these pointers to what ff_mpv_common_defaults()
already set them.)
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com>
---
libavcodec/mpeg12dec.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/libavcodec/mpeg12dec.c b/libavcodec/mpeg12dec.c
index 7133696f3c..dad1970f6c 100644
--- a/libavcodec/mpeg12dec.c
+++ b/libavcodec/mpeg12dec.c
@@ -1062,7 +1062,6 @@ static av_cold int mpeg_decode_init(AVCodecContext *avctx)
/* we need some permutation to store matrices,
* until the decoder sets the real permutation. */
ff_mpv_idct_init(s2);
- ff_mpeg12_common_init(&s->mpeg_enc_ctx);
ff_mpeg12_init_vlcs();
s2->chroma_format = 1;
@@ -3075,7 +3074,6 @@ static av_cold int ipu_decode_init(AVCodecContext *avctx)
ff_mpv_decode_init(m, avctx);
ff_mpv_idct_init(m);
- ff_mpeg12_common_init(m);
ff_mpeg12_init_vlcs();
for (int i = 0; i < 64; i++) {
--
2.34.1
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