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vc_deinterlace_ex: support for R12L

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Martin Pulec
2023-01-12 11:02:55 +01:00
parent 8efdce2337
commit 5d8e84fe06
1 changed files with 39 additions and 0 deletions
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39
src/video_codec.c
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@@ -772,6 +772,45 @@ bool vc_deinterlace_ex(codec_t codec, unsigned char *src, size_t src_linesize, u
s32++;
d32++;
}
} else if (codec == R12L) {
uint32_t *s32 = (void *) s;
uint32_t *d32 = (void *) d;
int shift = 0;
uint32_t remain1 = 0;
uint32_t remain2 = 0;
uint32_t out = 0;
for (size_t x = 0; x < src_linesize / 4; ++x) {
uint32_t in1 = *s32;
uint32_t in2 = s32[src_linesize / 4];
if (shift > 0) {
remain1 = remain1 | (in1 & ((1<<((shift + 12) % 32)) - 1)) << (32-shift);
remain2 = remain2 | (in2 & ((1<<((shift + 12) % 32)) - 1)) << (32-shift);
uint32_t ret = (remain1 + remain2 + 1) / 2;
out |= ret << shift;
*d32 = d32[dst_pitch / 4] = out;
d32++;
out = ret >> (32-shift);
shift = (shift + 12) % 32;
in1 >>= shift;
in2 >>= shift;
}
while (shift <= 32 - 12) {
out |= ((((in1 & 0xfff) + (in2 & 0xfff)) + 1) / 2) << shift;
in1 >>= 12;
in2 >>= 12;
shift += 12;
}
if (shift == 32) {
*d32 = d32[dst_pitch / 4] = out;
d32++;
out = 0;
shift = 0;
} else {
remain1 = in1;
remain2 = in2;
}
s32++;
}
} else {
return false;
}