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| author | Rémi Denis-Courmont <remi@remlab.net> | 2024-08-14 19:56:05 +0300 |
|---|---|---|
| committer | Rémi Denis-Courmont <remi@remlab.net> | 2024-08-19 22:41:13 +0300 |
| commit | 1907dd7f2335ba106b1d92070a497e818d734efd (patch) | |
| tree | cf18a7801b652213206cc077d68c3c9096251b8c /libavcodec/riscv | |
| parent | 0fd37c00d728becba6c49aff9efaf7cae17d46d7 (diff) | |
| download | ffmpeg-1907dd7f2335ba106b1d92070a497e818d734efd.tar.gz | |
lavc/mpegvideoencdsp: R-V V try_8x8basis
T-Head C908:
try_8x8basis_c: 922.5
try_8x8basis_rvv_i32: 135.3
SpacemiT X60:
try_8x8basis_c: 926.1
try_8x8basis_rvv_i32: 103.1
Diffstat (limited to 'libavcodec/riscv')
| -rw-r--r-- | libavcodec/riscv/mpegvideoencdsp_init.c | 15 | ||||
| -rw-r--r-- | libavcodec/riscv/mpegvideoencdsp_rvv.S | 35 |
2 files changed, 46 insertions, 4 deletions
diff --git a/libavcodec/riscv/mpegvideoencdsp_init.c b/libavcodec/riscv/mpegvideoencdsp_init.c index eb5c8a5aed..4c156c1cf2 100644 --- a/libavcodec/riscv/mpegvideoencdsp_init.c +++ b/libavcodec/riscv/mpegvideoencdsp_init.c @@ -23,6 +23,8 @@ #include "libavutil/cpu.h" #include "libavcodec/mpegvideoencdsp.h" +int ff_try_8x8basis_rvv(const int16_t rem[64], const int16_t weight[64], + const int16_t basis[16], int scale); int ff_pix_sum_rvv(const uint8_t *pix, int line_size); int ff_pix_norm1_rvv(const uint8_t *pix, int line_size); @@ -32,10 +34,15 @@ av_cold void ff_mpegvideoencdsp_init_riscv(MpegvideoEncDSPContext *c, #if HAVE_RVV int flags = av_get_cpu_flags(); - if (flags & AV_CPU_FLAG_RVV_I64) { - if ((flags & AV_CPU_FLAG_RVB) && ff_rv_vlen_least(128)) - c->pix_sum = ff_pix_sum_rvv; - c->pix_norm1 = ff_pix_norm1_rvv; + if (flags & AV_CPU_FLAG_RVV_I32) { + if (flags & AV_CPU_FLAG_RVB) + c->try_8x8basis = ff_try_8x8basis_rvv; + + if (flags & AV_CPU_FLAG_RVV_I64) { + if ((flags & AV_CPU_FLAG_RVB) && ff_rv_vlen_least(128)) + c->pix_sum = ff_pix_sum_rvv; + c->pix_norm1 = ff_pix_norm1_rvv; + } } #endif } diff --git a/libavcodec/riscv/mpegvideoencdsp_rvv.S b/libavcodec/riscv/mpegvideoencdsp_rvv.S index 2f25b00eb2..9408de47c8 100644 --- a/libavcodec/riscv/mpegvideoencdsp_rvv.S +++ b/libavcodec/riscv/mpegvideoencdsp_rvv.S @@ -20,6 +20,41 @@ #include "libavutil/riscv/asm.S" +.equ BASIS_SHIFT, 16 +.equ RECON_SHIFT, 6 + +func ff_try_8x8basis_rvv, zve32x, b + li t1, 64 + csrwi vxrm, 0 + vsetvli t0, t1, e32, m8, ta, ma + vmv.v.x v24, zero + vmv.s.x v1, zero +1: + vsetvli zero, zero, e16, m4, ta, ma + vle16.v v4, (a2) + sub t1, t1, t0 + vwmul.vx v16, v4, a3 + sh1add a2, t0, a2 + vle16.v v8, (a0) + sh1add a0, t0, a0 + vnclip.wi v4, v16, BASIS_SHIFT - RECON_SHIFT + vle16.v v12, (a1) + sh1add a1, t0, a1 + vadd.vv v4, v8, v4 + vsra.vi v4, v4, RECON_SHIFT + vwmul.vv v16, v12, v4 + vsetvli zero, zero, e32, m8, ta, ma + vmul.vv v16, v16, v16 + vsra.vi v16, v16, 4 + vadd.vv v24, v24, v16 + bnez t1, 1b + + vredsum.vs v1, v24, v1 + vmv.x.s a0, v1 + srai a0, a0, 2 + ret +endfunc + func ff_pix_sum_rvv, zve64x, b lpad 0 vsetivli t0, 16, e16, m1, ta, ma |