[FFmpeg-cvslog] lavc/alacdsp: RISC-V V append_extra_bits[1]
Rémi Denis-Courmont
git at videolan.org
Wed Oct 5 07:57:12 EEST 2022
ffmpeg | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Tue Oct 4 20:17:18 2022 +0300| [f0d1637c11c91b4729d4385a4bf9c61c213d3173] | committer: Lynne
lavc/alacdsp: RISC-V V append_extra_bits[1]
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f0d1637c11c91b4729d4385a4bf9c61c213d3173
---
libavcodec/riscv/alacdsp_init.c | 5 +++++
libavcodec/riscv/alacdsp_rvv.S | 27 +++++++++++++++++++++++++++
2 files changed, 32 insertions(+)
diff --git a/libavcodec/riscv/alacdsp_init.c b/libavcodec/riscv/alacdsp_init.c
index 37688be67b..fa8a7c8129 100644
--- a/libavcodec/riscv/alacdsp_init.c
+++ b/libavcodec/riscv/alacdsp_init.c
@@ -31,6 +31,10 @@ 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);
+void ff_alac_append_extra_bits_stereo_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)
{
@@ -40,6 +44,7 @@ av_cold void ff_alacdsp_init_riscv(ALACDSPContext *c)
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;
+ c->append_extra_bits[1] = ff_alac_append_extra_bits_stereo_rvv;
}
#endif
}
diff --git a/libavcodec/riscv/alacdsp_rvv.S b/libavcodec/riscv/alacdsp_rvv.S
index 7478ab228b..21b89ca0e7 100644
--- a/libavcodec/riscv/alacdsp_rvv.S
+++ b/libavcodec/riscv/alacdsp_rvv.S
@@ -61,4 +61,31 @@ func ff_alac_append_extra_bits_mono_rvv, zve32x
ret
endfunc
+
+func ff_alac_append_extra_bits_stereo_rvv, zve32x
+ ld a6, 8(a0)
+ ld a0, (a0)
+ ld a7, 8(a1)
+ ld a1, (a1)
+1:
+ vsetvli t0, a4, e32, m1, ta, ma
+ vle32.v v16, (a0)
+ sub a4, a4, t0
+ vle32.v v0, (a6)
+ vsll.vx v16, v16, a2
+ vsll.vx v0, v0, a2
+ vle32.v v24, (a1)
+ sh2add a1, t0, a1
+ vle32.v v8, (a7)
+ sh2add a7, t0, a7
+ vor.vv v16, v24, v16
+ vor.vv v0, v8, v0
+ vse32.v v16, (a0)
+ sh2add a0, t0, a0
+ vse32.v v0, (a6)
+ sh2add a6, t0, a6
+ bnez a4, 1b
+
+ ret
+endfunc
#endif
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