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swscale: Add p016 output support and generalise yuv420p1x to p010

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To make the best use of existing code, I generalised the wrapper
that currently does yuv420p10 to p010 to support any mixture of
input and output sizes between 10 and 16 bits. This had the side
effect of yielding a working code path for all yuv420p1x formats
to p01x.
This commit is contained in:
Philip Langdale
2018-03-01 20:16:48 -08:00
parent e990713ff9
commit 9d5aff09a7
16 changed files with 80 additions and 13 deletions
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31
libswscale/output.c
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@@ -180,6 +180,34 @@ yuv2planeX_16_c_template(const int16_t *filter, int filterSize,
}
}
static void yuv2p016cX_c(SwsContext *c, const int16_t *chrFilter, int chrFilterSize,
const int16_t **chrUSrc, const int16_t **chrVSrc,
uint8_t *dest8, int chrDstW)
{
uint16_t *dest = (uint16_t*)dest8;
const int32_t **uSrc = (const int32_t **)chrUSrc;
const int32_t **vSrc = (const int32_t **)chrVSrc;
int shift = 15;
int big_endian = c->dstFormat == AV_PIX_FMT_P016BE;
int i, j;
for (i = 0; i < chrDstW; i++) {
int u = 1 << (shift - 1);
int v = 1 << (shift - 1);
/* See yuv2planeX_16_c_template for details. */
u -= 0x40000000;
v -= 0x40000000;
for (j = 0; j < chrFilterSize; j++) {
u += uSrc[j][i] * (unsigned)chrFilter[j];
v += vSrc[j][i] * (unsigned)chrFilter[j];
}
output_pixel(&dest[2*i] , u, 0x8000, int);
output_pixel(&dest[2*i+1], v, 0x8000, int);
}
}
#undef output_pixel
#define output_pixel(pos, val) \
@@ -2257,6 +2285,9 @@ av_cold void ff_sws_init_output_funcs(SwsContext *c,
} else if (is16BPS(dstFormat)) {
*yuv2planeX = isBE(dstFormat) ? yuv2planeX_16BE_c : yuv2planeX_16LE_c;
*yuv2plane1 = isBE(dstFormat) ? yuv2plane1_16BE_c : yuv2plane1_16LE_c;
if (dstFormat == AV_PIX_FMT_P016LE || dstFormat == AV_PIX_FMT_P016BE) {
*yuv2nv12cX = yuv2p016cX_c;
}
} else if (isNBPS(dstFormat)) {
if (desc->comp[0].depth == 9) {
*yuv2planeX = isBE(dstFormat) ? yuv2planeX_9BE_c : yuv2planeX_9LE_c;