From patchwork Fri Oct 21 13:31:44 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Niedermayer X-Patchwork-Id: 1102 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.103.140.133 with SMTP id o127csp1070871vsd; Fri, 21 Oct 2016 06:32:33 -0700 (PDT) X-Received: by 10.194.5.97 with SMTP id r1mr826646wjr.36.1477056753774; Fri, 21 Oct 2016 06:32:33 -0700 (PDT) Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id dw13si2650235wjb.44.2016.10.21.06.32.33; Fri, 21 Oct 2016 06:32:33 -0700 (PDT) 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; 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 Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id D2381689C56; Fri, 21 Oct 2016 16:31:57 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from vie01a-dmta-pe03-2.mx.upcmail.net (vie01a-dmta-pe03-2.mx.upcmail.net [62.179.121.161]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 2990B689C37 for ; Fri, 21 Oct 2016 16:31:50 +0300 (EEST) Received: from [172.31.216.43] (helo=vie01a-pemc-psmtp-pe01) by vie01a-dmta-pe03.mx.upcmail.net with esmtp (Exim 4.87) (envelope-from ) id 1bxZvM-000221-R8 for ffmpeg-devel@ffmpeg.org; Fri, 21 Oct 2016 15:31:52 +0200 Received: from localhost ([213.47.41.20]) by vie01a-pemc-psmtp-pe01 with SMTP @ mailcloud.upcmail.net id yDXr1t0150S5wYM01DXsca; Fri, 21 Oct 2016 15:31:52 +0200 X-SourceIP: 213.47.41.20 From: Michael Niedermayer To: FFmpeg development discussions and patches Date: Fri, 21 Oct 2016 15:31:44 +0200 Message-Id: <20161021133146.11956-5-michael@niedermayer.cc> X-Mailer: git-send-email 2.10.1 In-Reply-To: <20161021133146.11956-1-michael@niedermayer.cc> References: <20161021133146.11956-1-michael@niedermayer.cc> Subject: [FFmpeg-devel] [PATCH 5/7] avcodec/snowenc: Clear MMX state after edge drawing and picture encode 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 MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Fixes undefined behavior from calling libc allocation with unclean FPU state. Signed-off-by: Michael Niedermayer --- libavcodec/snowenc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/snowenc.c b/libavcodec/snowenc.c index 00aef57..5cc7997 100644 --- a/libavcodec/snowenc.c +++ b/libavcodec/snowenc.c @@ -1640,6 +1640,7 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt, s->current_picture->linesize[2], w>>s->chroma_h_shift, h>>s->chroma_v_shift, EDGE_WIDTH>>s->chroma_h_shift, EDGE_WIDTH>>s->chroma_v_shift, EDGE_TOP | EDGE_BOTTOM); } + emms_c(); } ff_snow_frame_start(s); @@ -1856,6 +1857,7 @@ FF_ENABLE_DEPRECATION_WARNINGS } } + emms_c(); update_last_header_values(s);