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[178.140.223.238]) by smtp.gmail.com with ESMTPSA id m17-v6sm3620088lji.94.2018.05.23.14.08.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 May 2018 14:08:20 -0700 (PDT) From: Andrey Semashev To: ffmpeg-devel@ffmpeg.org Date: Thu, 24 May 2018 00:07:36 +0300 Message-Id: <20180523210736.30556-1-andrey.semashev@gmail.com> X-Mailer: git-send-email 2.17.0 Subject: [FFmpeg-devel] [PATCH] lavfi/tests: Fix 16-bit vf_blend test to avoid memory not aligned to 2 bytes 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: Andrey Semashev MIME-Version: 1.0 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Generic C implementation of vf_blend performs reads and writes of 16-bit elements, which requires the buffers to be aligned to at least 2-byte boundary. Also, the change fixes source buffer overrun caused by src_offset being added to to test handling of misaligned buffers. Fixes: #7226 --- tests/checkasm/vf_blend.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/checkasm/vf_blend.c b/tests/checkasm/vf_blend.c index 912f3a2c38..a7578fec39 100644 --- a/tests/checkasm/vf_blend.c +++ b/tests/checkasm/vf_blend.c @@ -71,7 +71,7 @@ w = WIDTH / depth; \ \ for (i = 0; i < BUF_UNITS - 1; i++) { \ - int src_offset = i * SIZE_PER_UNIT + i; /* Test various alignments */ \ + int src_offset = i * SIZE_PER_UNIT + (BUF_UNITS - 1 - i) * depth; /* Test various alignments */ \ int dst_offset = i * SIZE_PER_UNIT; /* dst must be aligned */ \ randomize_buffers(); \ call_ref(top1 + src_offset, w, bot1 + src_offset, w, \