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avcodec/ppc/mpegvideo_altivec: Don't process unnecessarily many coeffs

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Use the same number as the C version.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-03-22 07:31:30 +01:00
parent b96ba44432
commit 46c5466dd8
1 changed files with 4 additions and 1 deletions
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5
libavcodec/ppc/mpegvideo_altivec.c
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@ -57,7 +57,10 @@ static void dct_unquantize_h263_altivec(MpegEncContext *s,
}else
qadd = 0;
i = 1;
nCoeffs= 63; //does not always use zigzag table
if (s->ac_pred)
nCoeffs = 63;
else
nCoeffs = s->intra_scantable.raster_end[s->block_last_index[n]];
} else {
i = 0;
av_assert2(s->block_last_index[n]>=0);