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 01EC54A61C for ; Fri, 3 May 2024 18:08:12 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 6F30868D700; Fri, 3 May 2024 21:08:09 +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 8FBA068D6FF for ; Fri, 3 May 2024 21:08:01 +0300 (EEST) Received: from basile.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id E473FC00AE for ; Fri, 3 May 2024 21:08:00 +0300 (EEST) From: =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= To: ffmpeg-devel@ffmpeg.org Date: Fri, 3 May 2024 21:08:00 +0300 Message-ID: <20240503180800.49703-1-remi@remlab.net> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] lavc/ac3dsp: R-V Zbb ac3_exponent_min 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: SiFive U74: ac3_exponent_min_reuse0_c: 10.0 ac3_exponent_min_reuse0_rvb_b: 8.0 ac3_exponent_min_reuse1_c: 2924.7 ac3_exponent_min_reuse1_rvb_b: 1803.0 ac3_exponent_min_reuse2_c: 5043.0 ac3_exponent_min_reuse2_rvb_b: 2827.5 ac3_exponent_min_reuse3_c: 7028.7 ac3_exponent_min_reuse3_rvb_b: 3872.0 ac3_exponent_min_reuse4_c: 8824.2 ac3_exponent_min_reuse4_rvb_b: 5122.2 ac3_exponent_min_reuse5_c: 10487.5 ac3_exponent_min_reuse5_rvb_b: 6412.2 --- libavcodec/riscv/ac3dsp_init.c | 3 +++ libavcodec/riscv/ac3dsp_rvb.S | 21 +++++++++++++++++++++ 2 files changed, 24 insertions(+) diff --git a/libavcodec/riscv/ac3dsp_init.c b/libavcodec/riscv/ac3dsp_init.c index c7c375273d..8cfa69055a 100644 --- a/libavcodec/riscv/ac3dsp_init.c +++ b/libavcodec/riscv/ac3dsp_init.c @@ -26,6 +26,7 @@ #include "libavutil/cpu.h" #include "libavcodec/ac3dsp.h" +void ff_ac3_exponent_min_rvb(uint8_t *exp, int, int); void ff_ac3_exponent_min_rvv(uint8_t *exp, int, int); void ff_extract_exponents_rvb(uint8_t *exp, int32_t *coef, int nb_coefs); void ff_float_to_fixed24_rvv(int32_t *dst, const float *src, size_t len); @@ -39,6 +40,8 @@ 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) + c->ac3_exponent_min = ff_ac3_exponent_min_rvb; if (flags & AV_CPU_FLAG_RVV_I32) c->ac3_exponent_min = ff_ac3_exponent_min_rvv; diff --git a/libavcodec/riscv/ac3dsp_rvb.S b/libavcodec/riscv/ac3dsp_rvb.S index 48f8bb101e..0ca56466e1 100644 --- a/libavcodec/riscv/ac3dsp_rvb.S +++ b/libavcodec/riscv/ac3dsp_rvb.S @@ -21,6 +21,27 @@ #include "config.h" #include "libavutil/riscv/asm.S" +func ff_ac3_exponent_min_rvb, zbb + beqz a1, 3f +1: + addi a2, a2, -1 + lb t3, (a0) + addi t0, a0, 256 + mv t1, a1 +2: + lb t4, (t0) + addi t1, t1, -1 + addi t0, t0, 256 + minu t3, t3, t4 + bnez t1, 2b + + sb t3, (a0) + addi a0, a0, 1 + bnez a2, 1b +3: + ret +endfunc + func ff_extract_exponents_rvb, zbb 1: lw t0, (a1) -- 2.43.0 _______________________________________________ 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".