* [FFmpeg-devel] [PATCH 2/2] lavc/flacdsp: R-V V flac_wasted33
@ 2024-05-12 17:07 Rémi Denis-Courmont
2024-05-12 19:54 ` [FFmpeg-devel] [PATCHv2 " Rémi Denis-Courmont
0 siblings, 1 reply; 3+ messages in thread
From: Rémi Denis-Courmont @ 2024-05-12 17:07 UTC (permalink / raw)
To: ffmpeg-devel
T-Head C908:
flac_wasted_33_c: 1040.0
flac_wasted_33_rvv_i64: 711.2
---
libavcodec/riscv/flacdsp_init.c | 4 ++++
libavcodec/riscv/flacdsp_rvv.S | 16 ++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/libavcodec/riscv/flacdsp_init.c b/libavcodec/riscv/flacdsp_init.c
index 4043715a3b..7d043db163 100644
--- a/libavcodec/riscv/flacdsp_init.c
+++ b/libavcodec/riscv/flacdsp_init.c
@@ -32,6 +32,7 @@ void ff_flac_lpc32_rvv(int32_t *decoded, const int coeffs[32],
void ff_flac_lpc32_rvv_simple(int32_t *decoded, const int coeffs[32],
int pred_order, int qlevel, int len);
void ff_flac_wasted32_rvv(int32_t *, int shift, int len);
+void ff_flac_wasted33_rvv(int64_t *, const int32_t *, int shift, int len);
void ff_flac_decorrelate_indep2_16_rvv(uint8_t **out, int32_t **in,
int channels, int len, int shift);
void ff_flac_decorrelate_indep4_16_rvv(uint8_t **out, int32_t **in,
@@ -82,6 +83,9 @@ av_cold void ff_flacdsp_init_riscv(FLACDSPContext *c, enum AVSampleFormat fmt,
c->wasted32 = ff_flac_wasted32_rvv;
+ if (flags & AV_CPU_FLAG_RVV_I64)
+ c->wasted33 = ff_flac_wasted33_rvv;
+
# if (__riscv_xlen >= 64)
switch (fmt) {
case AV_SAMPLE_FMT_S16:
diff --git a/libavcodec/riscv/flacdsp_rvv.S b/libavcodec/riscv/flacdsp_rvv.S
index d576a0cc21..e0a937817a 100644
--- a/libavcodec/riscv/flacdsp_rvv.S
+++ b/libavcodec/riscv/flacdsp_rvv.S
@@ -115,6 +115,22 @@ func ff_flac_wasted32_rvv, zve32x
ret
endfunc
+func ff_flac_wasted33_rvv, zve64x
+1:
+ vsetvli t0, a3, e32, m4, ta, ma
+ vle32.v v8, (a1)
+ sub a3, a3, t0
+ vwcvt.x.x.v v16, v8
+ sh2add a1, t0, a1
+ vsetvli zero, zero, e64, m8, ta, ma
+ vsll.vx v16, v16, a2
+ vse64.v v16, (a0)
+ sh3add a0, t0, a0
+ bnez a3, 1b
+
+ ret
+endfunc
+
#if (__riscv_xlen == 64)
func ff_flac_decorrelate_indep2_16_rvv, zve32x
ld a0, (a0)
--
2.43.0
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^ permalink raw reply [flat|nested] 3+ messages in thread* [FFmpeg-devel] [PATCHv2 2/2] lavc/flacdsp: R-V V flac_wasted33
2024-05-12 17:07 [FFmpeg-devel] [PATCH 2/2] lavc/flacdsp: R-V V flac_wasted33 Rémi Denis-Courmont
@ 2024-05-12 19:54 ` Rémi Denis-Courmont
2024-05-14 20:24 ` Rémi Denis-Courmont
0 siblings, 1 reply; 3+ messages in thread
From: Rémi Denis-Courmont @ 2024-05-12 19:54 UTC (permalink / raw)
To: ffmpeg-devel
T-Head C908:
flac_wasted_33_c: 786.2
flac_wasted_33_rvv_i64: 486.5
---
libavcodec/riscv/flacdsp_init.c | 4 ++++
libavcodec/riscv/flacdsp_rvv.S | 16 ++++++++++++++++
2 files changed, 20 insertions(+)
diff --git a/libavcodec/riscv/flacdsp_init.c b/libavcodec/riscv/flacdsp_init.c
index 4043715a3b..0d7cff8bfe 100644
--- a/libavcodec/riscv/flacdsp_init.c
+++ b/libavcodec/riscv/flacdsp_init.c
@@ -32,6 +32,7 @@ void ff_flac_lpc32_rvv(int32_t *decoded, const int coeffs[32],
void ff_flac_lpc32_rvv_simple(int32_t *decoded, const int coeffs[32],
int pred_order, int qlevel, int len);
void ff_flac_wasted32_rvv(int32_t *, int shift, int len);
+void ff_flac_wasted33_rvv(int64_t *, const int32_t *, int shift, int len);
void ff_flac_decorrelate_indep2_16_rvv(uint8_t **out, int32_t **in,
int channels, int len, int shift);
void ff_flac_decorrelate_indep4_16_rvv(uint8_t **out, int32_t **in,
@@ -83,6 +84,9 @@ av_cold void ff_flacdsp_init_riscv(FLACDSPContext *c, enum AVSampleFormat fmt,
c->wasted32 = ff_flac_wasted32_rvv;
# if (__riscv_xlen >= 64)
+ if (flags & AV_CPU_FLAG_RVV_I64)
+ c->wasted33 = ff_flac_wasted33_rvv;
+
switch (fmt) {
case AV_SAMPLE_FMT_S16:
switch (channels) {
diff --git a/libavcodec/riscv/flacdsp_rvv.S b/libavcodec/riscv/flacdsp_rvv.S
index d576a0cc21..5e5f4e7b64 100644
--- a/libavcodec/riscv/flacdsp_rvv.S
+++ b/libavcodec/riscv/flacdsp_rvv.S
@@ -116,6 +116,22 @@ func ff_flac_wasted32_rvv, zve32x
endfunc
#if (__riscv_xlen == 64)
+func ff_flac_wasted33_rvv, zve64x
+ li t0, 1
+ sll a2, t0, a2
+1:
+ vsetvli t0, a3, e32, m4, ta, ma
+ vle32.v v8, (a1)
+ sub a3, a3, t0
+ vwmul.vx v16, v8, a2
+ sh2add a1, t0, a1
+ vse64.v v16, (a0)
+ sh3add a0, t0, a0
+ bnez a3, 1b
+
+ ret
+endfunc
+
func ff_flac_decorrelate_indep2_16_rvv, zve32x
ld a0, (a0)
ld a2, 8(a1)
--
2.43.0
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https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-05-14 20:24 UTC | newest]
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2024-05-12 17:07 [FFmpeg-devel] [PATCH 2/2] lavc/flacdsp: R-V V flac_wasted33 Rémi Denis-Courmont
2024-05-12 19:54 ` [FFmpeg-devel] [PATCHv2 " Rémi Denis-Courmont
2024-05-14 20:24 ` Rémi Denis-Courmont
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