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| author | Rémi Denis-Courmont <remi@remlab.net> | 2022-10-04 20:17:17 +0300 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2022-10-05 06:51:11 +0200 |
| commit | 55bde97f29cb41c8bce30f4a6e72d18b05289184 (patch) | |
| tree | 485689f09e75e456f8354abc15c58376bb265385 /libavcodec/riscv | |
| parent | 64ab5779547628b032a3b68713dddbeca0c0686f (diff) | |
| download | ffmpeg-55bde97f29cb41c8bce30f4a6e72d18b05289184.tar.gz | |
lavc/alacdsp: RISC-V V append_extra_bits[0]
Diffstat (limited to 'libavcodec/riscv')
| -rw-r--r-- | libavcodec/riscv/alacdsp_init.c | 8 | ||||
| -rw-r--r-- | libavcodec/riscv/alacdsp_rvv.S | 18 |
2 files changed, 25 insertions, 1 deletions
diff --git a/libavcodec/riscv/alacdsp_init.c b/libavcodec/riscv/alacdsp_init.c index 9ddebaa60b..37688be67b 100644 --- a/libavcodec/riscv/alacdsp_init.c +++ b/libavcodec/riscv/alacdsp_init.c @@ -27,13 +27,19 @@ void ff_alac_decorrelate_stereo_rvv(int32_t *buffer[2], int nb_samples, int decorr_shift, int decorr_left_weight); +void ff_alac_append_extra_bits_mono_rvv(int32_t *buffer[2], + int32_t *extra_bits_buf[2], + int extra_bits, int channels, + int nb_samples); av_cold void ff_alacdsp_init_riscv(ALACDSPContext *c) { #if HAVE_RVV && (__riscv_xlen == 64) int flags = av_get_cpu_flags(); - if (flags & AV_CPU_FLAG_RVV_I32) + if (flags & AV_CPU_FLAG_RVV_I32) { c->decorrelate_stereo = ff_alac_decorrelate_stereo_rvv; + c->append_extra_bits[0] = ff_alac_append_extra_bits_mono_rvv; + } #endif } diff --git a/libavcodec/riscv/alacdsp_rvv.S b/libavcodec/riscv/alacdsp_rvv.S index 5d75d6f2f9..7478ab228b 100644 --- a/libavcodec/riscv/alacdsp_rvv.S +++ b/libavcodec/riscv/alacdsp_rvv.S @@ -43,4 +43,22 @@ func ff_alac_decorrelate_stereo_rvv, zve32x ret endfunc + +func ff_alac_append_extra_bits_mono_rvv, zve32x + ld a0, (a0) + ld a1, (a1) +1: + vsetvli t0, a4, e32, m1, ta, ma + vle32.v v16, (a0) + sub a4, a4, t0 + vle32.v v24, (a1) + sh2add a1, t0, a1 + vsll.vx v16, v16, a2 + vor.vv v16, v24, v16 + vse32.v v16, (a0) + sh2add a0, t0, a0 + bnez a4, 1b + + ret +endfunc #endif |