From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 56F16442CC for ; Wed, 5 Oct 2022 16:13:21 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id C61A468BD23; Wed, 5 Oct 2022 19:13:01 +0300 (EEST) Received: from ursule.remlab.net (vps-a2bccee9.vps.ovh.net [51.75.19.47]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id DB99868BD13 for ; Wed, 5 Oct 2022 19:12:57 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id 911C8C00AF for ; Wed, 5 Oct 2022 19:12:57 +0300 (EEST) From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= To: ffmpeg-devel@ffmpeg.org Date: Wed, 5 Oct 2022 19:12:55 +0300 Message-Id: <20221005161256.27612-3-remi@remlab.net> X-Mailer: git-send-email 2.37.2 In-Reply-To: <12083658.O9o76ZdvQC@basile.remlab.net> References: <12083658.O9o76ZdvQC@basile.remlab.net> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 3/4] lavc/opusdsp: RISC-V V (256-bit) postfilter X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: This adds a variant of the postfilter for use with 256-bit vectors. As a single vector is then large enough to perform the scalar product, the group multipler is reduced to just one at run-time. The different vector type is passed via register. Unfortunately, there is no VSETIVL instruction, so the constant vector size (5) also needs to be passed via a register. --- libavcodec/riscv/opusdsp_init.c | 4 ++++ libavcodec/riscv/opusdsp_rvv.S | 16 ++++++++++++---- 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/libavcodec/riscv/opusdsp_init.c b/libavcodec/riscv/opusdsp_init.c index f1d2c871e3..e6f9505f77 100644 --- a/libavcodec/riscv/opusdsp_init.c +++ b/libavcodec/riscv/opusdsp_init.c @@ -26,6 +26,7 @@ #include "libavcodec/opusdsp.h" void ff_opus_postfilter_rvv_128(float *data, int period, float *g, int len); +void ff_opus_postfilter_rvv_256(float *data, int period, float *g, int len); av_cold void ff_opus_dsp_init_riscv(OpusDSP *d) { @@ -37,6 +38,9 @@ av_cold void ff_opus_dsp_init_riscv(OpusDSP *d) case 16: d->postfilter = ff_opus_postfilter_rvv_128; break; + case 32: + d->postfilter = ff_opus_postfilter_rvv_256; + break; } #endif } diff --git a/libavcodec/riscv/opusdsp_rvv.S b/libavcodec/riscv/opusdsp_rvv.S index 79b46696cd..243c9a5e52 100644 --- a/libavcodec/riscv/opusdsp_rvv.S +++ b/libavcodec/riscv/opusdsp_rvv.S @@ -21,30 +21,38 @@ #include "libavutil/riscv/asm.S" func ff_opus_postfilter_rvv_128, zve32f + lvtypei a5, e32, m2, ta, ma + j 1f +endfunc + +func ff_opus_postfilter_rvv_256, zve32f + lvtypei a5, e32, m1, ta, ma +1: + li a4, 5 addi a1, a1, 2 slli a1, a1, 2 lw t1, 4(a2) vsetivli zero, 3, e32, m1, ta, ma vle32.v v24, (a2) sub a1, a0, a1 // a1 = &x4 = &data[-(period + 2)] - vsetivli zero, 5, e32, m2, ta, ma + vsetvl zero, a4, a5 vslide1up.vx v8, v24, t1 lw t2, 8(a2) vle32.v v16, (a1) vslide1up.vx v24, v8, t2 // v24 = { g[2], g[1], g[0], g[1], g[2] } 2: - vsetvli t0, a3, e32, m2, ta, ma + vsetvl t0, a3, a5 vle32.v v0, (a0) sub a3, a3, t0 3: - vsetivli zero, 5, e32, m2, ta, ma + vsetvl zero, a4, a5 lw t2, 20(a1) vfmul.vv v8, v24, v16 addi a0, a0, 4 vslide1down.vx v16, v16, t2 addi a1, a1, 4 vfredusum.vs v0, v8, v0 - vsetvli zero, t0, e32, m2, ta, ma + vsetvl zero, t0, a5 vmv.x.s t1, v0 addi t0, t0, -1 vslide1down.vx v0, v0, zero -- 2.37.2 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".