virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity

lavc/h264dsp: R-V V high-depth add_pixels8

Browse Source 
T-Head C908 (cycles);
h264_add_pixels8_9bpp_c:        270.5
h264_add_pixels8_9bpp_rvv_i32:  164.2
h264_add_pixels8_10bpp_c:       270.5
h264_add_pixels8_10bpp_rvv_i32: 164.2
h264_add_pixels8_12bpp_c:       270.5
h264_add_pixels8_12bpp_rvv_i32: 164.2
h264_add_pixels8_14bpp_c:       270.5
h264_add_pixels8_14bpp_rvv_i32: 164.2
This commit is contained in:
Rémi Denis-Courmont 2024-07-13 16:01:14 +03:00
parent 7744c08240
commit 3002310b70
2 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
libavcodec/riscv/h264addpx_rvv.S
View File

@ -87,3 +87,25 @@ func ff_h264_add_pixels8_8_rvv, zve64x
vsse64.v v8, (a0), a2
ret
endfunc
func ff_h264_add_pixels8_16_rvv, zve32x
li t0, 8
vsetivli zero, 8, e16, m1, ta, ma
1:
vle32.v v16, (a1)
addi t0, t0, -1
vle16.v v8, (a0)
.equ offset, 0
.rept 256 / __riscv_xlen
sx zero, offset(a1)
.equ offset, offset + (__riscv_xlen / 8)
.endr
vncvt.x.x.w v24, v16
addi a1, a1, 8 * 4
vadd.vv v8, v8, v24
vse16.v v8, (a0)
add a0, a0, a2
bnez t0, 1b
ret
endfunc

2
libavcodec/riscv/h264dsp_init.c
View File

@ -63,6 +63,7 @@ void ff_h264_idct8_add_14_rvv(uint8_t *dst, int16_t *block, int stride);
void ff_h264_add_pixels8_8_rvv(uint8_t *dst, int16_t *block, int stride);
void ff_h264_add_pixels4_8_rvv(uint8_t *dst, int16_t *block, int stride);
void ff_h264_add_pixels8_16_rvv(uint8_t *dst, int16_t *block, int stride);
void ff_h264_add_pixels4_16_rvv(uint8_t *dst, int16_t *block, int stride);
extern int ff_startcode_find_candidate_rvb(const uint8_t *, int);
@ -126,6 +127,7 @@ av_cold void ff_h264dsp_init_riscv(H264DSPContext *dsp, const int bit_depth,
dsp->h264_idct8_add = ff_h264_idct8_add_14_rvv;
}
if (bit_depth > 8 && zvl128b) {
dsp->h264_add_pixels8_clear = ff_h264_add_pixels8_16_rvv;
if (flags & AV_CPU_FLAG_RVV_I64)
dsp->h264_add_pixels4_clear = ff_h264_add_pixels4_16_rvv;
}