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swscale/output: add missing yuv2packed1 and yuv2packed2 support for VUY{X,A} 

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2024-10-06 21:52:56 -03:00
parent 1eb026dd8b
commit 5f1bf3cd65
1 changed files with 108 additions and 0 deletions
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108
libswscale/output.c
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@ -2668,6 +2668,112 @@ yuv2xv36le_X_c(SwsContext *c, const int16_t *lumFilter,
}
}
static void
yuv2vuyX_1_c(SwsContext *c, const int16_t *buf0,
const int16_t *ubuf[2], const int16_t *vbuf[2],
const int16_t *abuf0, uint8_t *dest, int dstW,
int uvalpha, int y)
{
int hasAlpha = !!abuf0;
int i;
if (uvalpha < 2048) {
for (i = 0; i < dstW; i++) {
int Y = (buf0[i] + 64) >> 7;
int U = (ubuf[0][i] + 64) >> 7;
int V = (vbuf[0][i] + 64) >> 7;
int A = 255;
if (Y & 0x100)
Y = av_clip_uint8(Y);
if (U & 0x100)
U = av_clip_uint8(U);
if (V & 0x100)
V = av_clip_uint8(V);
if (hasAlpha) {
A = (abuf0[i] + 64) >> 7;
if (A & 0x100)
A = av_clip_uint8(A);
}
dest[4 * i ] = V;
dest[4 * i + 1] = U;
dest[4 * i + 2] = Y;
dest[4 * i + 3] = A;
}
} else {
for (i = 0; i < dstW; i++) {
int Y = (buf0[i] + 64) >> 7;
int U = (ubuf[0][i] + ubuf[1][i] + 128) >> 8;
int V = (vbuf[0][i] + vbuf[1][i] + 128) >> 8;
int A = 255;
if (Y & 0x100)
Y = av_clip_uint8(Y);
if (U & 0x100)
U = av_clip_uint8(U);
if (V & 0x100)
V = av_clip_uint8(V);
if (hasAlpha) {
A = (abuf0[i] + 64) >> 7;
if (A & 0x100)
A = av_clip_uint8(A);
}
dest[4 * i ] = V;
dest[4 * i + 1] = U;
dest[4 * i + 2] = Y;
dest[4 * i + 3] = A;
}
}
}
static void
yuv2vuyX_2_c(SwsContext *c, const int16_t *buf[2],
const int16_t *ubuf[2], const int16_t *vbuf[2],
const int16_t *abuf[2], uint8_t *dest, int dstW,
int yalpha, int uvalpha, int y)
{
int hasAlpha = abuf && abuf[0] && abuf[1];
const int16_t *buf0 = buf[0], *buf1 = buf[1],
*ubuf0 = ubuf[0], *ubuf1 = ubuf[1],
*vbuf0 = vbuf[0], *vbuf1 = vbuf[1],
*abuf0 = hasAlpha ? abuf[0] : NULL,
*abuf1 = hasAlpha ? abuf[1] : NULL;
int yalpha1 = 4096 - yalpha;
int uvalpha1 = 4096 - uvalpha;
int i;
av_assert2(yalpha <= 4096U);
av_assert2(uvalpha <= 4096U);
for (i = 0; i < dstW; i++) {
int Y = (buf0[i] * yalpha1 + buf1[i] * yalpha) >> 19;
int U = (ubuf0[i] * uvalpha1 + ubuf1[i] * uvalpha) >> 19;
int V = (vbuf0[i] * uvalpha1 + vbuf1[i] * uvalpha) >> 19;
int A = 255;
if (Y & 0x100)
Y = av_clip_uint8(Y);
if (U & 0x100)
U = av_clip_uint8(U);
if (V & 0x100)
V = av_clip_uint8(V);
if (hasAlpha) {
A = (abuf0[i] * yalpha1 + abuf1[i] * yalpha) >> 19;
A = av_clip_uint8(A);
}
dest[4 * i ] = V;
dest[4 * i + 1] = U;
dest[4 * i + 2] = Y;
dest[4 * i + 3] = A;
}
}
static void
yuv2vuyX_X_c(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
@ -3275,6 +3381,8 @@ av_cold void ff_sws_init_output_funcs(SwsContext *c,
break;
case AV_PIX_FMT_VUYA:
case AV_PIX_FMT_VUYX:
*yuv2packed1 = yuv2vuyX_1_c;
*yuv2packed2 = yuv2vuyX_2_c;
*yuv2packedX = yuv2vuyX_X_c;
break;
case AV_PIX_FMT_XV30LE: