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avcodec/g2meet: Only keep what is used from ScanTable

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Namely ScanTable.permutated.

Reviewed-by: Peter Ross <pross@xvid.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-10-20 05:47:02 +02:00
parent 250d556343
commit f1a7bf0227
1 changed files with 4 additions and 4 deletions
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8
libavcodec/g2meet.c
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@ -120,7 +120,7 @@ typedef struct ePICContext {
typedef struct JPGContext {
BlockDSPContext bdsp;
IDCTDSPContext idsp;
ScanTable scantable;
uint8_t permutated_scantable[64];
VLC dc_vlc[2], ac_vlc[2];
int prev_dc[3];
@ -182,8 +182,8 @@ static av_cold int jpg_init(AVCodecContext *avctx, JPGContext *c)
ff_blockdsp_init(&c->bdsp);
ff_idctdsp_init(&c->idsp, avctx);
ff_init_scantable(c->idsp.idct_permutation, &c->scantable,
ff_zigzag_direct);
ff_permute_scantable(c->permutated_scantable, ff_zigzag_direct,
c->idsp.idct_permutation);
return 0;
}
@ -251,7 +251,7 @@ static int jpg_decode_block(JPGContext *c, GetBitContext *gb,
val = get_xbits(gb, nbits);
val *= qmat[ff_zigzag_direct[pos]];
block[c->scantable.permutated[pos]] = val;
block[c->permutated_scantable[pos]] = val;
}
}
return 0;