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libobs: Add packed yuv to planar 4:4:4 conversion

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This commit is contained in:
jp9000 2015-04-16 22:51:31 -07:00
parent 0f346561ff
commit 822d1ec3fc
2 changed files with 55 additions and 0 deletions
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50
libobs/media-io/format-conversion.c
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@ -36,6 +36,17 @@ do { \
*(uint32_t*)(lum_plane+lum_pos1) = get_m128_32_1(pack_val); \
} while (false)
#define pack_val(lum_plane, lum_pos0, lum_pos1, line1, line2, mask) \
do { \
__m128i pack_val = _mm_packs_epi32( \
_mm_and_si128(line1, mask), \
_mm_and_si128(line2, mask)); \
pack_val = _mm_packus_epi16(pack_val, pack_val); \
\
*(uint32_t*)(lum_plane+lum_pos0) = get_m128_32_0(pack_val); \
*(uint32_t*)(lum_plane+lum_pos1) = get_m128_32_1(pack_val); \
} while (false)
#define pack_ch_1plane(uv_plane, chroma_pos, line1, line2, uv_mask) \
do { \
__m128i add_val = _mm_add_epi64( \
@ -152,6 +163,45 @@ void compress_uyvx_to_nv12(
}
}
void convert_uyvx_to_i444(
const uint8_t *input, uint32_t in_linesize,
uint32_t start_y, uint32_t end_y,
uint8_t *output[], const uint32_t out_linesize[])
{
uint8_t *lum_plane = output[0];
uint8_t *u_plane = output[1];
uint8_t *v_plane = output[2];
uint32_t width = min_uint32(in_linesize, out_linesize[0]);
uint32_t y;
__m128i lum_mask = _mm_set1_epi32(0x0000FF00);
__m128i u_mask = _mm_set1_epi32(0x000000FF);
__m128i v_mask = _mm_set1_epi32(0x00FF0000);
for (y = start_y; y < end_y; y += 2) {
uint32_t y_pos = y * in_linesize;
uint32_t lum_y_pos = y * out_linesize[0];
uint32_t x;
for (x = 0; x < width; x += 4) {
const uint8_t *img = input + y_pos + x*4;
uint32_t lum_pos0 = lum_y_pos + x;
uint32_t lum_pos1 = lum_pos0 + out_linesize[0];
__m128i line1 = _mm_load_si128((const __m128i*)img);
__m128i line2 = _mm_load_si128(
(const __m128i*)(img + in_linesize));
pack_shift(lum_plane, lum_pos0, lum_pos1,
line1, line2, lum_mask, 1);
pack_val(u_plane, lum_pos0, lum_pos1,
line1, line2, u_mask);
pack_shift(v_plane, lum_pos0, lum_pos1,
line1, line2, v_mask, 2);
}
}
}
void decompress_420(
const uint8_t *const input[], const uint32_t in_linesize[],
uint32_t start_y, uint32_t end_y,

5
libobs/media-io/format-conversion.h
View file

@ -37,6 +37,11 @@ EXPORT void compress_uyvx_to_nv12(
uint32_t start_y, uint32_t end_y,
uint8_t *output[], const uint32_t out_linesize[]);
EXPORT void convert_uyvx_to_i444(
const uint8_t *input, uint32_t in_linesize,
uint32_t start_y, uint32_t end_y,
uint8_t *output[], const uint32_t out_linesize[]);
EXPORT void decompress_nv12(
const uint8_t *const input[], const uint32_t in_linesize[],
uint32_t start_y, uint32_t end_y,