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avcodec/mimic: 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 05:50:24 +02:00
parent 60c3516941
commit 5975bb7f81
1 changed files with 3 additions and 3 deletions
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6
libavcodec/mimic.c
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@ -56,7 +56,7 @@ typedef struct MimicContext {
DECLARE_ALIGNED(32, int16_t, dct_block)[64];
GetBitContext gb;
ScanTable scantable;
uint8_t permutated_scantable[64];
BlockDSPContext bdsp;
BswapDSPContext bbdsp;
HpelDSPContext hdsp;
@ -137,7 +137,7 @@ static av_cold int mimic_decode_init(AVCodecContext *avctx)
ff_bswapdsp_init(&ctx->bbdsp);
ff_hpeldsp_init(&ctx->hdsp, avctx->flags);
ff_idctdsp_init(&ctx->idsp, avctx);
ff_init_scantable(ctx->idsp.idct_permutation, &ctx->scantable, col_zag);
ff_permute_scantable(ctx->permutated_scantable, col_zag, ctx->idsp.idct_permutation);
for (i = 0; i < FF_ARRAY_ELEMS(ctx->frames); i++) {
ctx->frames[i].f = av_frame_alloc();
@ -250,7 +250,7 @@ static int vlc_decode_block(MimicContext *ctx, int num_coeffs, int qscale)
else /* TODO Use >> 10 instead of / 1001 */
coeff = (coeff * qscale) / 1001;
block[ctx->scantable.permutated[pos]] = coeff;
block[ctx->permutated_scantable[pos]] = coeff;
}
return 0;