From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id 5907942EE8 for ; Sun, 12 Jun 2022 17:19:30 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 476ED68B522; Sun, 12 Jun 2022 20:19:08 +0300 (EEST) Received: from iq.passwd.hu (iq.passwd.hu [217.27.212.140]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 2683368B3B5 for ; Sun, 12 Jun 2022 20:19:01 +0300 (EEST) Received: from localhost (localhost [127.0.0.1]) by iq.passwd.hu (Postfix) with ESMTP id 8F290E6DC2; Sun, 12 Jun 2022 19:19:01 +0200 (CEST) X-Virus-Scanned: amavisd-new at passwd.hu Received: from iq.passwd.hu ([127.0.0.1]) by localhost (iq.passwd.hu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 1CKQDfkvz__H; Sun, 12 Jun 2022 19:19:00 +0200 (CEST) Received: from bluegene.passwd.hu (localhost [127.0.0.1]) by iq.passwd.hu (Postfix) with ESMTP id D955BE6B25; Sun, 12 Jun 2022 19:18:59 +0200 (CEST) From: Marton Balint To: ffmpeg-devel@ffmpeg.org Date: Sun, 12 Jun 2022 19:18:42 +0200 Message-Id: <20220612171845.8122-4-cus@passwd.hu> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220612171845.8122-1-cus@passwd.hu> References: <20220612171845.8122-1-cus@passwd.hu> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 4/7] avcodec/v210dec: do not use accelerated code for the last pixels of a row X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 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: Marton Balint Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: ASM code tends to overwrite the buffers by 2-4 bytes and it can cause issues with slice threads. Signed-off-by: Marton Balint --- libavcodec/v210dec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/libavcodec/v210dec.c b/libavcodec/v210dec.c index e97f43a8e6..4268b5b748 100644 --- a/libavcodec/v210dec.c +++ b/libavcodec/v210dec.c @@ -54,7 +54,7 @@ static void decode_row(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t * void (*unpack_frame)(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t *v, int width)) { uint32_t val; - int w = (width / 12) * 12; + int w = (FFMAX(0, width - 12) / 12) * 12; unpack_frame(src, y, u, v, w); @@ -63,7 +63,7 @@ static void decode_row(const uint32_t *src, uint16_t *y, uint16_t *u, uint16_t * v += w >> 1; src += (w << 1) / 3; - if (w < width - 5) { + while (w < width - 5) { READ_PIXELS(u, y, v); READ_PIXELS(y, u, y); READ_PIXELS(v, y, u); -- 2.34.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".