From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 1/1] lavc/ac3dsp: fix R-V CPU requirements
Date: Sat, 27 Jul 2024 15:51:52 +0300
Message-ID: <20240727125152.55694-1-remi@remlab.net> (raw)
It probably will not matter on any real hardware, but the Zbb optimisations
do not require Zba. And then, we need HAVE_RVV to build the RVV stuff.
---
libavcodec/riscv/ac3dsp_init.c | 36 ++++++++++++++++++++--------------
1 file changed, 21 insertions(+), 15 deletions(-)
diff --git a/libavcodec/riscv/ac3dsp_init.c b/libavcodec/riscv/ac3dsp_init.c
index f66b6cac57..24b3881854 100644
--- a/libavcodec/riscv/ac3dsp_init.c
+++ b/libavcodec/riscv/ac3dsp_init.c
@@ -41,26 +41,32 @@ av_cold void ff_ac3dsp_init_riscv(AC3DSPContext *c)
#if HAVE_RV
int flags = av_get_cpu_flags();
- if (flags & AV_CPU_FLAG_RVB_BASIC)
+ if (flags & AV_CPU_FLAG_RVB_BASIC) {
c->ac3_exponent_min = ff_ac3_exponent_min_rvb;
- if (flags & AV_CPU_FLAG_RVV_I32)
+ c->extract_exponents = ff_extract_exponents_rvb;
+ }
+
+# if HAVE_RVV
+ if (flags & AV_CPU_FLAG_RVV_I32) {
c->ac3_exponent_min = ff_ac3_exponent_min_rvv;
- if (flags & AV_CPU_FLAG_RVB_ADDR) {
- if (flags & AV_CPU_FLAG_RVB_BASIC)
- c->extract_exponents = ff_extract_exponents_rvb;
-# if HAVE_RV_ZVBB
- if (flags & AV_CPU_FLAG_RV_ZVBB)
- c->extract_exponents = ff_extract_exponents_rvvb;
+ if (flags & AV_CPU_FLAG_RVB) {
+# if HAVE_RV_ZVBB
+ if (flags & AV_CPU_FLAG_RV_ZVBB)
+ c->extract_exponents = ff_extract_exponents_rvvb;
+# endif
+ if (flags & AV_CPU_FLAG_RVV_F32) {
+ c->float_to_fixed24 = ff_float_to_fixed24_rvv;
+ c->sum_square_butterfly_float =
+ ff_sum_square_butterfly_float_rvv;
+ }
+# if __riscv_xlen >= 64
+ if (flags & AV_CPU_FLAG_RVV_I64)
+ c->sum_square_butterfly_int32 =
+ ff_sum_square_butterfly_int32_rvv;
+# endif
# endif
- if (flags & AV_CPU_FLAG_RVV_F32) {
- c->float_to_fixed24 = ff_float_to_fixed24_rvv;
- c->sum_square_butterfly_float = ff_sum_square_butterfly_float_rvv;
}
-# if __riscv_xlen >= 64
- if (flags & AV_CPU_FLAG_RVV_I64)
- c->sum_square_butterfly_int32 = ff_sum_square_butterfly_int32_rvv;
-# endif
}
#endif
}
--
2.45.2
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