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 81BC846321 for ; Thu, 15 Jun 2023 10:37:17 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 0D4F968C4F8; Thu, 15 Jun 2023 13:37:00 +0300 (EEST) Received: from zg8tmtyylji0my4xnjqumte4.icoremail.net (zg8tmtyylji0my4xnjqumte4.icoremail.net [162.243.164.118]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 6683B68C2EA for ; Thu, 15 Jun 2023 13:36:52 +0300 (EEST) Received: from host042-ubuntu-1804.lxd (unknown [10.12.130.38]) by app1 (Coremail) with SMTP id EwgMCgDnhMS_6Ypk6XcmAA--.44896S6; Thu, 15 Jun 2023 18:36:50 +0800 (CST) From: Peiting Shen To: ffmpeg-devel@ffmpeg.org Date: Thu, 15 Jun 2023 10:36:41 +0000 Message-Id: <20230615103645.25778-3-shenpeiting@eswincomputing.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230615103645.25778-1-shenpeiting@eswincomputing.com> References: <20230615103645.25778-1-shenpeiting@eswincomputing.com> X-CM-TRANSID: EwgMCgDnhMS_6Ypk6XcmAA--.44896S6 X-Coremail-Antispam: 1UD129KBjvJXoW7WFW5tFy7tw4kXF48WF1Utrb_yoW8ZFW7pF 4fGryfZrn3XrZ7C3ZxGFykZF15Kas5GFn5JFnrZFWxZr4jv347JrsFyr1YyryjqrZ5ZF1Y 9FW0gw13Cr18GFJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUB214x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jryl82xGYIkIc2 x26xkF7I0E14v26r1Y6r1xM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_tr0E3s1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS 0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2 IY67AKxVWUGVWUXwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0 Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwCY02Avz4vE-syl42xK82IYc2 Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s02 6x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1Y6r17MIIYrxkI7VAKI48JMIIF0x vE2Ix0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE 42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVW8JVWxJwCI42IY6I8E87Iv6x kF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjfUOc_TUUUUU X-CM-SenderInfo: hvkh01phlwx03j6h245lqf0zpsxwx03jof0z/ Subject: [FFmpeg-devel] [PATCH 2/6] lavc/ac3dsp: RISC-V V float_to_fixed24 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 Cc: Shen Peiting MIME-Version: 1.0 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: From: Shen Peiting Vector instructions replaces scalar options of float convert to fixed Benchmarks on Spike(cycles): len=16 float_to_fixed24_c: 315 float_to_fixed24_rvv: 27 len=160 float_to_fixed24_c: 2871 float_to_fixed24_rvv: 67 Co-Authored by: Yang Xiaojun Co-Authored by: Huang Xing Co-Authored by: Zeng Fanchen Signed-off-by: Shen Peiting --- libavcodec/riscv/ac3dsp_init.c | 5 ++++- libavcodec/riscv/ac3dsp_rvv.S | 19 +++++++++++++++++++ 2 files changed, 23 insertions(+), 1 deletion(-) diff --git a/libavcodec/riscv/ac3dsp_init.c b/libavcodec/riscv/ac3dsp_init.c index bb67d86998..a4e75a7541 100644 --- a/libavcodec/riscv/ac3dsp_init.c +++ b/libavcodec/riscv/ac3dsp_init.c @@ -25,13 +25,16 @@ #include "config.h" void ff_ac3_exponent_min_rvv(uint8_t *exp, int num_reuse_blocks, int nb_coefs); +void ff_float_to_fixed24_rvv(int32_t *dst, const float *src, unsigned int len); av_cold void ff_ac3dsp_init_riscv(AC3DSPContext *c) { int flags = av_get_cpu_flags(); #if HAVE_RVV - if (flags & AV_CPU_FLAG_RVV_I32) + if (flags & AV_CPU_FLAG_RVV_I32) { c->ac3_exponent_min = ff_ac3_exponent_min_rvv; + c->float_to_fixed24 = ff_float_to_fixed24_rvv; + } #endif } diff --git a/libavcodec/riscv/ac3dsp_rvv.S b/libavcodec/riscv/ac3dsp_rvv.S index 879123f4a7..d98e72c12c 100644 --- a/libavcodec/riscv/ac3dsp_rvv.S +++ b/libavcodec/riscv/ac3dsp_rvv.S @@ -44,3 +44,22 @@ func ff_ac3_exponent_min_rvv, zve32x 3: ret endfunc + + +func ff_float_to_fixed24_rvv, zve32x + addi t1, x0, 1 + slli t1, t1, 24 + fcvt.s.w f1, t1 +1: + vsetvli t0, a2, e32, m8 + vle32.v v0, (a1) + vfmul.vf v0, v0, f1 + vfcvt.x.f.v v16, v0 + vse32.v v16, (a0) + sub a2, a2, t0 + slli t0, t0, 2 + add a1, a1, t0 + add a0, a0, t0 + bgtz a2, 1b + ret +endfunc -- 2.17.1 _______________________________________________ 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".