From patchwork Thu Dec 13 04:57:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andriy Gelman X-Patchwork-Id: 11398 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 109D544D6DD for ; Thu, 13 Dec 2018 06:57:56 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 42DF968A895; Thu, 13 Dec 2018 06:57:46 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-qt1-f181.google.com (mail-qt1-f181.google.com [209.85.160.181]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 9098468A739 for ; Thu, 13 Dec 2018 06:57:39 +0200 (EET) Received: by mail-qt1-f181.google.com with SMTP id y20so777788qtm.13 for ; Wed, 12 Dec 2018 20:57:51 -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=+grI4Wyclmgr6kvPcYrCxBkFSaKtmj5WPseRf8eNJRI=; b=Z6MbxDZH5nT3z7YwnKw6OKlDqU59qOx5xtv9QXrC1oGOMFdxbVR7mt7pEWKfULg11n tB8B8DdgWNbDqGKeE68ES2QjyNqZDEDLB0Ks3PylWFRGjsX5jCBo5jAGEIHcTd56kWN7 CVJKpznhwSHKIBDI4ZwYHUmZqnhsDYh9DprJ8Gzo7t4D8ghkfk/Eylklj6n40jy+nYMf NtFu+XW7AU2HhTm4L09/Rjtf96QSgUxvIdnx8ydsa0shU9zOsW/JE9iMrgy0qtmozHDC ljaup+OTe+eimzkomB51wc9m13WUzLEYdM5QoF2+/uQv04vCMbmx/L83t7czTpPZl3o9 Ge2g== 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=+grI4Wyclmgr6kvPcYrCxBkFSaKtmj5WPseRf8eNJRI=; b=gOPv4gSO0kssxpJSujgsia2ZZvB4j9lw1WJbfmAFfdeqL3icUkIz5LentOh49oWYHU Mtba931kLxDfHG62VJfjrkr8t5CqBPvS4MEj2w/wc6+XJztzjcIagR5FGPe5yjzYEwu5 U1zJixcw1rIGM7cfvwkncOkUIM1dyuBgppanbKfQ1l3nMulaxElCOMmhkSGvD5BYnM1k epVbl/P4vEHKd761OzHSkF7K7fEZIrkhSQbHDQ/hHaWlJ/uMCKHoDFZr7PIWZ87SGpIQ TqnAaAOV6n94oSP6Enm4Lb0tYo4PLk6xvqyluGSv5reoaWZj4ZtElcPwWBJZ2gctVoKU RIJQ== X-Gm-Message-State: AA+aEWYbO6y8q4ApJ51An88duPTrZNPBbjwBuU7LBZZAXRa16d2f/LZN 6xCDtDu8bEfkt1elqcOYHIXZQGboQgI= X-Google-Smtp-Source: AFSGD/XZMT2uJqVQHFG9lqkR6E/OIVDo7jyzxIpTJXgGM7mQtTO9wr2txMxhCts+99CIDIzH7MqQdA== X-Received: by 2002:a0c:c16b:: with SMTP id i40mr21742871qvh.28.1544677070192; Wed, 12 Dec 2018 20:57:50 -0800 (PST) Received: from localhost.localdomain (c-24-60-253-205.hsd1.ma.comcast.net. [24.60.253.205]) by smtp.gmail.com with ESMTPSA id c17sm520428qtb.14.2018.12.12.20.57.49 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Dec 2018 20:57:49 -0800 (PST) From: Andriy Gelman To: ffmpeg-devel@ffmpeg.org Date: Wed, 12 Dec 2018 23:57:35 -0500 Message-Id: <20181213045735.8390-1-andriy.gelman@gmail.com> X-Mailer: git-send-email 2.17.1 Subject: [FFmpeg-devel] [PATCH] avcodec/mpeg: Initialize quarter_sample parameter from previous thread. 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: Andriy Gelman MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Fixes #7410. The value of sub-pixel precision for me/mc can change during an Intra frame. In multi-threaded decoding this change is not propagated to other frame threads causing decoding artifacts. This patch initializes the sub-pixel precision parameter from previous thread, which fixes the issue. --- libavcodec/mpegvideo.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c index d4d3bea..dbb6ab9 100644 --- a/libavcodec/mpegvideo.c +++ b/libavcodec/mpegvideo.c @@ -538,6 +538,8 @@ int ff_mpeg_update_thread_context(AVCodecContext *dst, s->avctx->width = s1->avctx->width; s->avctx->height = s1->avctx->height; + s->quarter_sample = s1->quarter_sample; + s->coded_picture_number = s1->coded_picture_number; s->picture_number = s1->picture_number;