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From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
To: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: nicolas@ndufresne.ca, Jonas Karlman <jonas@kwiboo.se>,
	linux-media@vger.kernel.org,
	Ezequiel Garcia <ezequiel@collabora.com>,
	Sebastian Fricke <sebastian.fricke@collabora.com>,
	Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	linux-rockchip@lists.infradead.org,
	linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH v5 13/20] media: rkvdec: h264: Fix reference frame_num wrap for second field
Date: Fri, 13 May 2022 16:29:15 -0400	[thread overview]
Message-ID: <20220513202922.13846-14-nicolas.dufresne@collabora.com> (raw)
In-Reply-To: <20220513202922.13846-1-nicolas.dufresne@collabora.com>

From: Jonas Karlman <jonas@kwiboo.se>

When decoding the second field in a complementary field pair the second
field is sharing the same frame_num with the first field.

Currently the frame_num for the first field is wrapped when it matches the
field being decoded, this caused issues decoding the second field in a
complementary field pair.

Fix this by using inclusive comparison: 'less than or equal'.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>
Reviewed-by: Sebastian Fricke <sebastian.fricke@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
---
 drivers/staging/media/rkvdec/rkvdec-h264.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/rkvdec/rkvdec-h264.c b/drivers/staging/media/rkvdec/rkvdec-h264.c
index fb41e2fd8359..57821ee3b213 100644
--- a/drivers/staging/media/rkvdec/rkvdec-h264.c
+++ b/drivers/staging/media/rkvdec/rkvdec-h264.c
@@ -782,7 +782,7 @@ static void assemble_hw_rps(struct rkvdec_ctx *ctx,
 			continue;
 
 		if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM ||
-		    dpb[i].frame_num < dec_params->frame_num) {
+		    dpb[i].frame_num <= dec_params->frame_num) {
 			p[i] = dpb[i].frame_num;
 			continue;
 		}
-- 
2.34.3


  parent reply	other threads:[~2022-05-13 20:29 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220513202922.13846-1-nicolas.dufresne@collabora.com>
2022-05-13 20:29 ` [PATCH v5 01/20] media: h264: Use v4l2_h264_reference for reflist Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 02/20] media: h264: Increase reference lists size to 32 Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 08/20] media: rkvdec: Stop overclocking the decoder Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 09/20] media: rkvdec: h264: Fix dpb_valid implementation Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 10/20] media: rkvdec: h264: Fix bit depth wrap in pps packet Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 11/20] media: rkvdec: Move H264 SPS validation in rkvdec-h264 Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 12/20] media: rkvdec: h264: Validate and use pic width and height in mbs Nicolas Dufresne
2022-05-13 20:29 ` Nicolas Dufresne [this message]
2022-05-13 20:29 ` [PATCH v5 14/20] media: rkvdec: Ensure decoded resolution fit coded resolution Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 15/20] media: rkvdec-h264: Add field decoding support Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 16/20] media: rkvdec: Enable capture buffer holding for H264 Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 17/20] media: hantro: Stop using H.264 parameter pic_num Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 18/20] media: hantro: h264: Make dpb entry management more robust Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 19/20] media: hantro: Add H.264 field decoding support Nicolas Dufresne
2022-05-13 20:29 ` [PATCH v5 20/20] media: hantro: Enable HOLD_CAPTURE_BUF for H.264 Nicolas Dufresne

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