From patchwork Sun Nov 15 01:29:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: James Almer X-Patchwork-Id: 23637 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 8F33344A696 for ; Sun, 15 Nov 2020 03:30:16 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 745AE68B989; Sun, 15 Nov 2020 03:30:16 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-qk1-f193.google.com (mail-qk1-f193.google.com [209.85.222.193]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 4057168AF5D for ; Sun, 15 Nov 2020 03:30:07 +0200 (EET) Received: by mail-qk1-f193.google.com with SMTP id 199so13421270qkg.9 for ; Sat, 14 Nov 2020 17:30:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=6K+89X9PhWbYjGvFmuXh3dZUlZjRvDJgCMN3dbgIiPk=; b=vNIscmP9MgIPJs7XrwUSczHkwp9zQU+3SBBrrPwtkn0WkoikPLAfLgZGfi9sefCQS9 C9DLzAy4+aQpgw9bBZ8k72Oo0N8pWruOWDrW7+7kEHf0LS+48SKKd7pmCsimH5lSvhgN RNyTjOxFk5jxDxWtWIdrNEbw6HMuJYTjUaUyK+vecgJd/XxH1/u3M9IzA+UZdWGwrmA2 ZdR0jY2UcdfNps2AzxmlAtCBXF4Ov5r8ffjopKSu5YHzblbGrcEEwS8hcJSr/WLv2ZBr 1TSwEqQIYVzANI0Bvl1/rj4OkiTjzbt/u1H6IWwYWeuJyR1TtIpNbcKtcMZBqnWZZXy/ 6yXQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6K+89X9PhWbYjGvFmuXh3dZUlZjRvDJgCMN3dbgIiPk=; b=mcR0Oykr6vqwd1B/KOJ5FN2RfI8NpLhaBC7Skge0zq52D8RcZkivORB2BjxQj/JQQV 60t4G2oRUzt/mde/QH1JIb4p1lvumKwoa3/RnolokIyRUphY7VXVCXwhLPJdeBbF9D6x 9T5q573BML607R9Oe0bF1oEKDhUKsENcLtS77PGQWcy3oM+Io9gkyQ6OKtgIQU262f9d P9SECet2Gx4CTQLqsBEJ3p40e77Duxk/V9BvS+/kBgbPd/eRvs9TwEJuQ4dfBXC1bQqL CC6ddxrZXohlPP63FbfyLTVNFHUJbMlVXUnbfPwU+uai8MmF6coX4RSyo7cRYtmrxAAt Dm4Q== X-Gm-Message-State: AOAM5301iwIY/p8vHpGXvD5uPZ6etOOeVVw078jauocvaCbc2NE6vANI ftLnMXpPL1ARGCFo8fCM92HwjvoDux0= X-Google-Smtp-Source: ABdhPJz0nEWrhe4P8FWOfnuZvPeMFs6WgaJj7Dhpi68iSBG8+Ttf8PJo6H4CWpzDhzn6n6MtEXkQ+g== X-Received: by 2002:a37:8d81:: with SMTP id p123mr8640541qkd.316.1605403805662; Sat, 14 Nov 2020 17:30:05 -0800 (PST) Received: from localhost.localdomain ([181.23.74.184]) by smtp.gmail.com with ESMTPSA id f202sm9186015qke.112.2020.11.14.17.30.04 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Nov 2020 17:30:05 -0800 (PST) From: James Almer To: ffmpeg-devel@ffmpeg.org Date: Sat, 14 Nov 2020 22:29:47 -0300 Message-Id: <20201115012948.1201-2-jamrial@gmail.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201115012948.1201-1-jamrial@gmail.com> References: <20201115012948.1201-1-jamrial@gmail.com> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 2/3] tools/target_bsf_fuzzer: Call av_bsf_flush() in a fuzzer choosen pattern 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 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" This should increase coverage. Based on a commit by Michael Niedermayer Signed-off-by: James Almer --- tools/target_bsf_fuzzer.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/target_bsf_fuzzer.c b/tools/target_bsf_fuzzer.c index 5d9f90075d..da8d62dd0b 100644 --- a/tools/target_bsf_fuzzer.c +++ b/tools/target_bsf_fuzzer.c @@ -43,6 +43,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { AVBSFContext *bsf = NULL; AVPacket in, out; uint64_t keyframes = 0; + uint64_t flushpattern = -1; int res; if (!f) { @@ -86,6 +87,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { bsf->par_in->channels = (unsigned)bytestream2_get_le32(&gbc) % FF_SANE_NB_CHANNELS; bsf->par_in->block_align = bytestream2_get_le32(&gbc); keyframes = bytestream2_get_le64(&gbc); + flushpattern = bytestream2_get_le64(&gbc); if (extradata_size < size) { bsf->par_in->extradata = av_mallocz(extradata_size + AV_INPUT_BUFFER_PADDING_SIZE); @@ -128,6 +130,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { data += sizeof(fuzz_tag); last = data; + if (!(flushpattern & 7)) + av_bsf_flush(bsf); + flushpattern = (flushpattern >> 3) + (flushpattern << 61); + while (in.size) { res = av_bsf_send_packet(bsf, &in); if (res < 0 && res != AVERROR(EAGAIN))