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avcodec/escape124: Simplify unpack_codebook() 

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-03-05 22:43:56 +01:00
parent 98df605f7a
commit f669dd4dff
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GPG Key ID: B18E8928B3948D64
1 changed files with 5 additions and 8 deletions
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13
libavcodec/escape124.c
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@ -97,15 +97,12 @@ static CodeBook unpack_codebook(GetBitContext* gb, unsigned depth,
cb.size = size;
for (i = 0; i < size; i++) {
unsigned mask_bits = get_bits(gb, 4);
unsigned color0 = get_bits(gb, 15);
unsigned color1 = get_bits(gb, 15);
unsigned color[2];
color[0] = get_bits(gb, 15);
color[1] = get_bits(gb, 15);
for (j = 0; j < 4; j++) {
if (mask_bits & (1 << j))
cb.blocks[i].pixels[j] = color1;
else
cb.blocks[i].pixels[j] = color0;
}
for (j = 0; j < 4; j++)
cb.blocks[i].pixels[j] = color[(mask_bits>>j) & 1];
}
return cb;
}