From patchwork Tue Nov 30 14:02:48 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Qiang.Zhang" X-Patchwork-Id: 31847 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a6b:d206:0:0:0:0:0 with SMTP id q6csp7692781iob; Tue, 30 Nov 2021 06:03:10 -0800 (PST) X-Google-Smtp-Source: ABdhPJyIOm8WTJvDp9GKU/AlcCcGF3EkQGbSXDI/Fm0YACThJfezH52xEIiJN7bpzLuIgttFLxil X-Received: by 2002:aa7:c313:: with SMTP id l19mr82479011edq.209.1638280990644; Tue, 30 Nov 2021 06:03:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1638280990; cv=none; d=google.com; s=arc-20160816; b=qPyyKH5kvlFUkCNOYukG4D5UMt/oXNDInxioobIx9A/dqq8k4l/qoZjLnFziSNKTdO YTSilxZtdAl417UqU0osnJPgChwft30U1PodeYOse1QcvJexVqkwcTHonM9Lx+/SnhKd dpHBc3vPio40wxwLjnaq3Cpx6hwqFLuViJvAMhzU0sh4khn8bidHwfTm9VVk34qvcUUU jN3Hf9rvOY1IkUN+VO5BwY/ELddqmLTqCsNBbgRuB9roY5IgmhiJ3ahluNHLkk+DfQ1Z u8FDZDzR8vuCpOrZsHU1OW33A4FgW6/F8wsD1cwwlhyKVa6dg8miEoft8uRpWPsmuqwf lY9A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:mime-version:reply-to :list-subscribe:list-help:list-post:list-archive:list-unsubscribe :list-id:precedence:subject:message-id:date:to:from:dkim-signature :delivered-to; bh=oJEw9AIQ8wLKPLAeDKXLG1+zK287/XN1IxuiALcXOn8=; b=BWbWQ5AUQCi1Bs0VD5qz9+XKmvGkfEgL63UOAeOLdM6cXbMJWwbAX2AbGeMVWfMAfH PINFnlUisUkgyL2WQtx85cWf3HyIyUekBGW7h/jFtuonXLE0jSdslqZWaQRu+pvV+zeT 1kzGFeXiQWhG6QZAM5CVQvdWQPBdbFztuouV1h6qt/cq/XCxxWu6tbfRD4b4hlcYsd0+ jDiM2IoSPmy3gzUZWMJOj82ewzuDq5n6v9atyJeqpeSSz7qRCfki7y1UmpnQ29phIcmC TysOU0pFdkxQvI/oYBXNSChshEzAvSaKa6wdbSJ1tAsS8hlRgiJw7p7fb04ctvGRSHwq +zEg== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@163.com header.s=s110527 header.b=bc1M5uyR; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=163.com Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id hq42si39612548ejc.522.2021.11.30.06.03.08; Tue, 30 Nov 2021 06:03:10 -0800 (PST) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@163.com header.s=s110527 header.b=bc1M5uyR; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=163.com Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 15EDF68AE4E; Tue, 30 Nov 2021 16:03:04 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from m12-12.163.com (m12-12.163.com [220.181.12.12]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 30BBD68A880 for ; Tue, 30 Nov 2021 16:02:56 +0200 (EET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id; bh=16ehCtbs0J9D44AahG Z75McNwoIeeKVv9KcruXdIeFY=; b=bc1M5uyRSpVWGA+Wtqw09BV6tjXPtdFcY7 ed1rZw9Xd7kHrBV8AChsspTiHSG5aYFMpN5FQq/VvFY8wO0o7TZItea8XMOwOvEq WRQFSiEbOFAOCah+wLWytiA8UDTj8zEstINCTEq9PkDBDIcBDMTzM+vFPzR6Gapw eVaPTWa4s= Received: from localhost (unknown [112.20.97.219]) by smtp8 (Coremail) with SMTP id DMCowADXkkwKL6ZhzouEDg--.4205S2; Tue, 30 Nov 2021 22:02:51 +0800 (CST) From: "Qiang.Zhang" To: ffmpeg-devel@ffmpeg.org Date: Tue, 30 Nov 2021 22:02:48 +0800 Message-Id: <20211130140248.17767-1-zqhy_0929@163.com> X-Mailer: git-send-email 2.17.1 X-CM-TRANSID: DMCowADXkkwKL6ZhzouEDg--.4205S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7CryUWFy3XFWUtF4xJFyUAwb_yoW8CF18p3 Z0gw1UJF1DJFy8Zr9rJayUWry5Wa1DZr10vw1kX3y0vay5JrZxWwsrAryYq34DKr95Xrn3 Xw1Ig34DZ3Z5GaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jOyCJUUUUU= X-Originating-IP: [112.20.97.219] X-CM-SenderInfo: 52tk5siqzsmqqrwthudrp/xtbBqhFb4l75cveZsQABsJ Subject: [FFmpeg-devel] [PATCH v1] [libavfiler/dnn] :[To improve efficiency, the exponential operation is changed to single precision] 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 MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: 62NO7jbyqZ4s Signed-off-by: Qiang.Zhang --- libavfilter/dnn/dnn_backend_native_layer_conv2d.c | 4 ++-- libavfilter/dnn/dnn_backend_native_layer_dense.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/libavfilter/dnn/dnn_backend_native_layer_conv2d.c b/libavfilter/dnn/dnn_backend_native_layer_conv2d.c index 7a60aa6a4b..6bf4080a68 100644 --- a/libavfilter/dnn/dnn_backend_native_layer_conv2d.c +++ b/libavfilter/dnn/dnn_backend_native_layer_conv2d.c @@ -166,10 +166,10 @@ static void * dnn_execute_layer_conv2d_thread(void *threadarg) output[n_filter] = FFMAX(output[n_filter], 0.0); break; case TANH: - output[n_filter] = 2.0f / (1.0f + exp(-2.0f * output[n_filter])) - 1.0f; + output[n_filter] = 2.0f / (1.0f + expf(-2.0f * output[n_filter])) - 1.0f; break; case SIGMOID: - output[n_filter] = 1.0f / (1.0f + exp(-output[n_filter])); + output[n_filter] = 1.0f / (1.0f + expf(-output[n_filter])); break; case NONE: break; diff --git a/libavfilter/dnn/dnn_backend_native_layer_dense.c b/libavfilter/dnn/dnn_backend_native_layer_dense.c index 117590d7bb..274d9150ec 100644 --- a/libavfilter/dnn/dnn_backend_native_layer_dense.c +++ b/libavfilter/dnn/dnn_backend_native_layer_dense.c @@ -133,10 +133,10 @@ int ff_dnn_execute_layer_dense(DnnOperand *operands, const int32_t *input_operan output[n_filter] = FFMAX(output[n_filter], 0.0); break; case TANH: - output[n_filter] = 2.0f / (1.0f + exp(-2.0f * output[n_filter])) - 1.0f; + output[n_filter] = 2.0f / (1.0f + expf(-2.0f * output[n_filter])) - 1.0f; break; case SIGMOID: - output[n_filter] = 1.0f / (1.0f + exp(-output[n_filter])); + output[n_filter] = 1.0f / (1.0f + expf(-output[n_filter])); break; case NONE: break;