From patchwork Sat Nov 3 02:52:10 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jun Zhao X-Patchwork-Id: 10905 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 B831E44E011 for ; Sat, 3 Nov 2018 04:52:49 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 3466668A9CB; Sat, 3 Nov 2018 04:52:21 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-pf1-f180.google.com (mail-pf1-f180.google.com [209.85.210.180]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 4F62568A9AD for ; Sat, 3 Nov 2018 04:52:14 +0200 (EET) Received: by mail-pf1-f180.google.com with SMTP id j22-v6so1844975pfh.3 for ; Fri, 02 Nov 2018 19:52:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=GVEefHu/C81lUeWVlr28bHastNYRbU+1SVSggmyCAB4=; b=akcCXtFkU31tboT7eDqpBsshCVxlk4kC34OC85wi2f+Fok2ea+sFeL77NSYxTzBSCW vlxYhIxxpq/CbFQLbgfHh/LVfCRkzFFzzOwvKFASRCgpGHQQ7Lgb4sZF1EaFc0Sg2HFH xgLdyO9muciAY7pX9NbaXLrbZ7h5BLz85Igbe0YI+R0FK//wohcm4Xkdq9p6/ghyYApA 7IoKuOHVOBE1ZXIxJeMFGRw1Va1VlpluSxfM2cJLZGmW9LBqOSiLoCdLVKe1HgWtyItT FQFqhOCTQuegSiRS/gYJu7frYh30lbAAbuQJSIV233eGZwm5SQB50Zi1y0s8RQthYFls XxHA== 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:in-reply-to :references; bh=GVEefHu/C81lUeWVlr28bHastNYRbU+1SVSggmyCAB4=; b=qDWmDNKN5GcDjhxpmhgHx1Wuk6SW9Tt/1z2TVrVuloRJC8WPRGKKgyItNR7XaG09vl 9tXCqi8jeKeh410uHbEA4cwjtJRcDYM+zzMuW9RivVcxUF6MzLrR84fF8ohGLWjDP8e3 V8PM1bP8waPRMRT+Uput8k0vYJxpgPbpulKz5nKOOGSkas+5orVDiMBlBl3s9d2cLsFk +sIWHaNYJMQzCy4qjHjZFV5fmL/tMMG4avioYxSEIUwFJ3gwazBODbWJWuqKSjBbcjJM vkT7iwHMzC2oy6FRZ4wzpXw912QXL0lXy1Mm7Qkc79FjB2R6QQn5FZpkGMA582XUwi69 XIRg== X-Gm-Message-State: AGRZ1gICSpLdwbubeXe8xHD1i7H6yQ33pZ46C1Fv14nRRD78+IRNC3nC SkgrL4NtUZpQsg8jByoOn+UIZ74x X-Google-Smtp-Source: AJdET5eahvoiA6WpenoXlOCt/yqT/kg4TKvohyXkuqHahxY5dmR1i84bGuubhqoyXzZl+NX72z93pw== X-Received: by 2002:a63:181:: with SMTP id 123-v6mr13074247pgb.149.1541213565632; Fri, 02 Nov 2018 19:52:45 -0700 (PDT) Received: from localhost.localdomain ([47.90.47.25]) by smtp.gmail.com with ESMTPSA id e127-v6sm33803195pfe.142.2018.11.02.19.52.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 02 Nov 2018 19:52:44 -0700 (PDT) From: Jun Zhao To: ffmpeg-devel@ffmpeg.org Date: Sat, 3 Nov 2018 10:52:10 +0800 Message-Id: <1541213532-23882-6-git-send-email-mypopydev@gmail.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1541213532-23882-1-git-send-email-mypopydev@gmail.com> References: <1541213532-23882-1-git-send-email-mypopydev@gmail.com> Subject: [FFmpeg-devel] [PATCH 5/7] doc/encoders: Add sliding_window docs for h264_vaapi. 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: Jun Zhao , Jun Zhao MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Add sliding_window docs for h264_vaapi encoder. Signed-off-by: Jun Zhao --- doc/encoders.texi | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/doc/encoders.texi b/doc/encoders.texi index 6851e75..c558b76 100644 --- a/doc/encoders.texi +++ b/doc/encoders.texi @@ -2624,6 +2624,10 @@ Each encoder also has its own specific options: improves subjective visual quality. It may have a negative impact on performance and objective visual quality metrics. Default is off and can't compatible with Constant QP. +@option{sliding_window} enabled the sliding windows bit rate control, that is a feature to +reduce the instant bitrate fluctuation, occasional big frame size for intra and scene +change frames are allowed. And the fluctuation level can be controlled by max bit rate. + @table @option @item coder Set entropy encoder (default is @emph{cabac}). Possible values: