From patchwork Mon Jun 8 14:01:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lance Wang X-Patchwork-Id: 20215 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 E4E6844A2BA for ; Mon, 8 Jun 2020 17:01:25 +0300 (EEST) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id C649F68B19B; Mon, 8 Jun 2020 17:01:25 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-pg1-f194.google.com (mail-pg1-f194.google.com [209.85.215.194]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 1C8BA6882D8 for ; Mon, 8 Jun 2020 17:01:19 +0300 (EEST) Received: by mail-pg1-f194.google.com with SMTP id t7so8806344pgt.3 for ; Mon, 08 Jun 2020 07:01:19 -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; bh=9Y36ZGWy1dSONZljwOQufUyI3t7PwIusDdLA6NiZBmM=; b=XkoD7yAbrIXmaeJZRX117R4o1um2EjnAVqVx98Dp0ex0ld0PMFajtUt+lZ7Eb0KeAU xI/TKoiu67XY8XOqVEli3u98CeBO6DcbfQwH5LaKg/NLWOOljuk60SIRYhVJC3bETg9F 2aWim3v7alQF657z6HJaVY2O9NY1ssxm4zD2KRgTwlG5fWj9+yShnJ1p6jIfLYP4Ik7/ hkU2AEl1rk9QeLUuRCOOkwQe4tiZqYvv3eoH2dt+rXgB3zEWprtlOF3MsOzlr12zaSa8 /ZctYo//FvQeoVy6xyJ4ES+w1qJbhTXrbFEKJseOdO7qei+HQ132Ss440oqnzwsU1fhK UA1w== 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=9Y36ZGWy1dSONZljwOQufUyI3t7PwIusDdLA6NiZBmM=; b=VGzEwFOVNcPGxltXcDVjb6CtSLlM7HGOzxpUTKPjXT0NqiW4aI6UCLNHSdv7Iu9TMv A/HrGnXrM+1coNGR7q2QAbdU5/vO8BGLtjo06a7XtLBjIWQHFBacFZgjuVikl2BLi6x7 2a/tn0oFOjAgPVlu+9TUNSFtnEFGAkmPW+hvHoVjs5fN2f6Zp6HsaDZepVJMGCN1isn2 vW5ljRd1Q4Forf1aqhdBbjbpgck/FINkXLa2oRfISS/pC6OeEwuFBtYXEPbqN00rrtgY VyD9rS9RBZMW1g/x/8697jfNJlOmxZs5l6MTs8wcy7aBfrZGOQdX2/RcrSRXOge9qj2W T9mQ== X-Gm-Message-State: AOAM530TMMP/FFHyU1e7oK4pbxz0BOP7GGPCORkIfJCYCPIf9B1AMwZ/ inrpR1cZUFxJq0g7zSWAfCVJACaY X-Google-Smtp-Source: ABdhPJzvpSQKPnkgspR8ThnKNsY3i2Ml4j0llZ/NeyuLuyAok0oXxJ2Wsc6hcHq3Vfi7QQvgX7W0zw== X-Received: by 2002:a63:145f:: with SMTP id 31mr20577034pgu.383.1591624876862; Mon, 08 Jun 2020 07:01:16 -0700 (PDT) Received: from vpn2.localdomain ([161.117.202.209]) by smtp.gmail.com with ESMTPSA id ha16sm8447878pjb.40.2020.06.08.07.01.15 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 08 Jun 2020 07:01:16 -0700 (PDT) From: lance.lmwang@gmail.com To: ffmpeg-devel@ffmpeg.org Date: Mon, 8 Jun 2020 22:01:11 +0800 Message-Id: <1591624871-18131-1-git-send-email-lance.lmwang@gmail.com> X-Mailer: git-send-email 1.8.3.1 Subject: [FFmpeg-devel] [PATCH] avfilter/f_metadata: use AVBPrint API to remove buf size limitation 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: Limin Wang MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" From: Limin Wang Signed-off-by: Limin Wang --- libavfilter/f_metadata.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/libavfilter/f_metadata.c b/libavfilter/f_metadata.c index 598257b15b..808782d31a 100644 --- a/libavfilter/f_metadata.c +++ b/libavfilter/f_metadata.c @@ -31,6 +31,7 @@ #include "libavutil/internal.h" #include "libavutil/opt.h" #include "libavutil/timestamp.h" +#include "libavutil/bprint.h" #include "libavformat/avio.h" #include "avfilter.h" #include "audio.h" @@ -195,9 +196,11 @@ static void print_file(AVFilterContext *ctx, const char *msg, ...) va_start(argument_list, msg); if (msg) { - char buf[128]; - vsnprintf(buf, sizeof(buf), msg, argument_list); - avio_write(s->avio_context, buf, av_strnlen(buf, sizeof(buf))); + AVBPrint buf; + av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED); + av_vbprintf(&buf, msg, argument_list); + avio_write(s->avio_context, buf.str, buf.len); + av_bprint_finalize(&buf, NULL); } va_end(argument_list); }