From patchwork Tue Mar 7 09:01:58 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Muhammad Faiz X-Patchwork-Id: 2785 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.103.50.79 with SMTP id y76csp463137vsy; Tue, 7 Mar 2017 01:02:30 -0800 (PST) X-Received: by 10.28.16.82 with SMTP id 79mr17662768wmq.64.1488877350196; Tue, 07 Mar 2017 01:02:30 -0800 (PST) Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id s142si10289235wme.166.2017.03.07.01.02.29; Tue, 07 Mar 2017 01:02:30 -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=@gmail.com; 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=gmail.com Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 66D0B680B28; Tue, 7 Mar 2017 11:02:14 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-pg0-f66.google.com (mail-pg0-f66.google.com [74.125.83.66]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 5F11668045B for ; Tue, 7 Mar 2017 11:02:08 +0200 (EET) Received: by mail-pg0-f66.google.com with SMTP id 25so22378339pgy.3 for ; Tue, 07 Mar 2017 01:02:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=n1AOokp+yh61J+lwGnXQBe10AM8oyoK/SZsukf4Ok/4=; b=UwwQGatjSeOVK8Wf3tBBZyZ+dKoaVIhySoxXCkY1nw677Fcrv/jON7eZLvuInd6ahO vuZmKT6XdzEPR63LdnpBjpN9OD5LQfcgLqNI3TTsXTG3m7U6Mlasind0esSkyJi/LTS3 xFe4Mn737BQj3TiwPWEiJzDCBClvDbUHK87NrS8I+dPvZ0IEWMQotpLtpd4oQIdNVp6+ M1GcOAPMInXfXVjnC60BllvHJ/k/wHYMlEr0Tn+8q45S8MMwMYimxcb8JZgYCVEWRDJt 7+7rnfWlH9q3YuP7RUmx7KHJe/eq4vS01YxFl6t1FTJ7z/HKGYKw+2kkfN287Kg8XR6Q UVfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=n1AOokp+yh61J+lwGnXQBe10AM8oyoK/SZsukf4Ok/4=; b=aI4R/Csg+fYRUwF27/1ZX7C+U/8DQInjPF47MpDh5lZbCe2p/EQAYUukYfdFZn+o/O Xo6B6NAM9bdQV4vtabcZdnj4ARbRypcCAEZxPQZ5QFyqofY3dBltCjS2oc4Q6/VCQPO/ kcpkaDB3G5dYflkEg2YGDoVhhZvoftHtL7cjz0nVRWBjGzJKWR53rZJ6ljE8AJtiMcO8 eMBGDPnVZ8Pa/lsXKvGudImaj2cM1jbBQQ76ez2Fvos5BfEoTfq4OZsxw/QbDVvjl7Ow Fh2r1HrGpekm4Ox6nH3xuK7n8NmyOkpB5nyivf/SMniIfTIZ82auncMC6yb5PY1VGDpi kxiA== X-Gm-Message-State: AMke39nD1mDfFJjsJCIaINsB/OGv8vBAIhJTxE0QHI/A+g+LjqyM8rfIOOiBDXRuG9kFEQ== X-Received: by 10.98.22.87 with SMTP id 84mr26821299pfw.145.1488877339595; Tue, 07 Mar 2017 01:02:19 -0800 (PST) Received: from localhost.localdomain ([114.120.239.164]) by smtp.gmail.com with ESMTPSA id r134sm44360447pfr.83.2017.03.07.01.02.17 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 07 Mar 2017 01:02:18 -0800 (PST) From: Muhammad Faiz To: ffmpeg-devel@ffmpeg.org Date: Tue, 7 Mar 2017 16:01:58 +0700 Message-Id: <20170307090201.11017-1-mfcc64@gmail.com> X-Mailer: git-send-email 2.9.3 Subject: [FFmpeg-devel] [PATCH v2 1/4] avcodec/allcodecs: make avcodec_register_all thread safe X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 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: Muhammad Faiz MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" use ff_thread_once Suggested-by: wm4 Signed-off-by: Muhammad Faiz --- libavcodec/allcodecs.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index eee322b..6ec7e79 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -25,6 +25,7 @@ */ #include "config.h" +#include "libavutil/thread.h" #include "avcodec.h" #include "version.h" @@ -58,14 +59,8 @@ av_register_codec_parser(&ff_##x##_parser); \ } -void avcodec_register_all(void) +static void register_all(void) { - static int initialized; - - if (initialized) - return; - initialized = 1; - /* hardware accelerators */ REGISTER_HWACCEL(H263_VAAPI, h263_vaapi); REGISTER_HWACCEL(H263_VIDEOTOOLBOX, h263_videotoolbox); @@ -717,3 +712,10 @@ void avcodec_register_all(void) REGISTER_PARSER(VP9, vp9); REGISTER_PARSER(XMA, xma); } + +void avcodec_register_all(void) +{ + static AVOnce control = AV_ONCE_INIT; + + ff_thread_once(&control, register_all); +}