./ffmpeg_g -f rawvideo -pix_fmt rgb24 -s hd1080 -i /dev/zero -pix_fmt
yuv420p16le \
-f null -vframes 100 -v error -nostats -
2120 UNITS in planar1, 65393 runs,143 skips
-cpuflags 0
19157 UNITS in planar1, 65512 runs, 24 skips
9.03632 speedup, 16be similarly.
Fate passes, each format tested with an image to video conversion.
Signed-off-by: Lauri Kasanen
---
v2: Copy-pasted rows were flipped.
libswscale/ppc/swscale_vsx.c | 59
1 file changed, 59 insertions(+)
diff --git a/libswscale/ppc/swscale_vsx.c b/libswscale/ppc/swscale_vsx.c
index 6462c11..70da6ae 100644
--- a/libswscale/ppc/swscale_vsx.c
+++ b/libswscale/ppc/swscale_vsx.c
@@ -180,6 +180,60 @@ static void yuv2plane1_nbps_vsx(const int16_t *src,
uint16_t *dest, int dstW,
yuv2plane1_nbps_u(src, dest, dstW, big_endian, output_bits, i);
}
+#undef output_pixel
+
+#define output_pixel(pos, val, bias, signedness) \
+if (big_endian) { \
+AV_WB16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \
+} else { \
+AV_WL16(pos, bias + av_clip_ ## signedness ## 16(val >> shift)); \
+}
+
+static void yuv2plane1_16_u(const int32_t *src, uint16_t *dest, int dstW,
+ int big_endian, int output_bits, int start)
+{
+int i;
+const int shift = 3;
+
+for (i = start; i < dstW; i++) {
+int val = src[i] + (1 << (shift - 1));
+output_pixel([i], val, 0, uint);
+}
+}
+
+static void yuv2plane1_16_vsx(const int32_t *src, uint16_t *dest, int dstW,
+ int big_endian, int output_bits)
+{
+const int dst_u = -(uintptr_t)dest & 7;
+const int shift = 3;
+const int add = (1 << (shift - 1));
+const vector uint32_t vadd = (vector uint32_t) {add, add, add, add};
+const vector uint16_t vswap = (vector uint16_t) vec_splat_u16(big_endian ?
8 : 0);
+const vector uint32_t vshift = (vector uint32_t) vec_splat_u32(shift);
+vector uint32_t v, v2;
+vector uint16_t vd;
+int i;
+
+yuv2plane1_16_u(src, dest, dst_u, big_endian, output_bits, 0);
+
+for (i = dst_u; i < dstW - 7; i += 8) {
+v = vec_vsx_ld(0, (const uint32_t *) [i]);
+v = vec_add(v, vadd);
+v = vec_sr(v, vshift);
+
+v2 = vec_vsx_ld(0, (const uint32_t *) [i + 4]);
+v2 = vec_add(v2, vadd);
+v2 = vec_sr(v2, vshift);
+
+vd = vec_packsu(v, v2);
+vd = vec_rl(vd, vswap);
+
+vec_st(vd, 0, [i]);
+}
+
+yuv2plane1_16_u(src, dest, dstW, big_endian, output_bits, i);
+}
+
#define yuv2NBPS(bits, BE_LE, is_be, template_size, typeX_t) \
static void yuv2plane1_ ## bits ## BE_LE ## _vsx(const int16_t *src, \
uint8_t *dest, int dstW, \
@@ -197,6 +251,8 @@ yuv2NBPS(12, BE, 1, nbps, int16_t)
yuv2NBPS(12, LE, 0, nbps, int16_t)
yuv2NBPS(14, BE, 1, nbps, int16_t)
yuv2NBPS(14, LE, 0, nbps, int16_t)
+yuv2NBPS(16, BE, 1, 16, int32_t)
+yuv2NBPS(16, LE, 0, 16, int32_t)
#endif /* !HAVE_BIGENDIAN */
@@ -240,6 +296,9 @@ av_cold void ff_sws_init_swscale_vsx(SwsContext *c)
case 14:
c->yuv2plane1 = isBE(dstFormat) ? yuv2plane1_14BE_vsx :
yuv2plane1_14LE_vsx;
break;
+case 16:
+c->yuv2plane1 = isBE(dstFormat) ? yuv2plane1_16BE_vsx :
yuv2plane1_16LE_vsx;
+break;
#endif
}
}
--
2.6.2
___
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
