From: Ezequiel Garcia <ezequiel@collabora.com>
To: Jonas Karlman <jonas@kwiboo.se>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans Verkuil <hverkuil@xs4all.nl>,
Boris Brezillon <boris.brezillon@collabora.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Paul Kocialkowski <paul.kocialkowski@bootlin.com>,
"linux-media@vger.kernel.org" <linux-media@vger.kernel.org>,
"linux-rockchip@lists.infradead.org"
<linux-rockchip@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 03/12] media: hantro: Fix H264 motion vector buffer offset
Date: Tue, 10 Sep 2019 11:18:34 +0100 [thread overview]
Message-ID: <255f22b1ddea5fa81104865769eec0fcb5617b36.camel@collabora.com> (raw)
In-Reply-To: <HE1PR06MB40115337CD86C429EF24430CACBF0@HE1PR06MB4011.eurprd06.prod.outlook.com>
Hi Jonas,
Thanks for fixing this, I'm happy we are reducing the amount
of black magic here.
On Sun, 2019-09-01 at 12:45 +0000, Jonas Karlman wrote:
> A decoded 8-bit 4:2:0 frame need memory for up to 448 macroblocks
> and is laid out in memory as follow:
>
> +-------------------+
> > Y-plane 256 MBs |
> +-------------------+
> > UV-plane 128 MBs |
> +-------------------+
> > MV buffer 64 MBs |
> +-------------------+
>
> The motion vector buffer offset is currently correct for 4:2:0 because
> the extra space for motion vectors is overallocated with an extra 64 MBs.
>
> Wrong offset for both destination and motion vector buffer are used
> for the bottom field of field encoded content, wrong offset is
> also used for 4:0:0 (monochrome) content.
>
> Fix this by always setting the motion vector address to the expected
> 384 MBs offset for 4:2:0 and 256 MBs offset for 4:0:0 content.
>
> Also use correct destination and motion vector buffer offset
> for the bottom field of field encoded content.
>
> While at it also extend the check for 4:0:0 (monochrome) to include an
> additional check for High Profile (100).
>
As with the scaling list, I believe it would make a lot of sense
to document this in the driver itself.
Thanks,
Ezequiel
next prev parent reply other threads:[~2019-09-10 10:18 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-01 12:42 [PATCH RFC 00/12] media: hantro: H264 fixes and improvements Jonas Karlman
2019-09-01 12:45 ` [PATCH 01/12] media: hantro: Fix H264 max frmsize supported on RK3288 Jonas Karlman
2019-09-04 13:07 ` Ezequiel Garcia
2019-09-09 19:25 ` Jonas Karlman
[not found] ` <20190901124531.23645-1-jonas@kwiboo.se>
2019-09-01 12:45 ` [PATCH 02/12] media: hantro: Do not reorder H264 scaling list Jonas Karlman
2019-09-02 14:00 ` Philipp Zabel
2019-09-02 16:18 ` Jonas Karlman
2019-09-03 7:54 ` Jonas Karlman
2019-09-03 12:53 ` Philipp Zabel
2019-09-03 9:56 ` Philipp Zabel
2019-09-10 10:14 ` Ezequiel Garcia
2019-09-01 12:45 ` [PATCH 03/12] media: hantro: Fix H264 motion vector buffer offset Jonas Karlman
2019-09-03 10:58 ` Philipp Zabel
2019-09-03 20:13 ` Jonas Karlman
2019-09-10 10:18 ` Ezequiel Garcia [this message]
2019-09-10 11:34 ` Ezequiel Garcia
2019-09-01 12:45 ` [PATCH 05/12] media: hantro: Remove now unused H264 pic_size Jonas Karlman
2019-09-01 12:45 ` [PATCH 04/12] media: hantro: Reduce H264 extra space for motion vectors Jonas Karlman
2019-09-01 12:45 ` [PATCH 06/12] media: hantro: Set H264 FIELDPIC_FLAG_E flag correctly Jonas Karlman
2019-09-01 12:45 ` [RFC 08/12] media: hantro: Fix H264 decoding of field encoded content Jonas Karlman
2019-09-03 13:21 ` Philipp Zabel
2019-09-03 14:02 ` Jonas Karlman
2019-09-03 15:01 ` Philipp Zabel
2019-09-03 19:47 ` Jonas Karlman
2019-09-01 12:45 ` [RFC 07/12] media: uapi: h264: Add DPB entry field reference flags Jonas Karlman
2020-07-10 4:21 ` Ezequiel Garcia
2020-07-10 8:13 ` Boris Brezillon
2020-07-10 8:48 ` Jonas Karlman
2020-07-10 12:18 ` Ezequiel Garcia
2020-07-10 11:50 ` Ezequiel Garcia
2020-07-10 12:05 ` Boris Brezillon
2020-07-10 12:25 ` Ezequiel Garcia
2020-07-10 21:49 ` Nicolas Dufresne
2020-07-11 10:21 ` Jonas Karlman
2020-07-11 18:36 ` Nicolas Dufresne
2020-07-12 22:59 ` Ezequiel Garcia
2020-07-14 16:04 ` Nicolas Dufresne
2019-09-01 12:45 ` [RFC 09/12] media: hantro: Refactor G1 H264 code Jonas Karlman
2019-09-01 12:45 ` [RFC 10/12] media: hantro: Add support for H264 decoding on RK3399 Jonas Karlman
2019-09-02 11:46 ` Hans Verkuil
2019-09-02 15:25 ` Jonas Karlman
2019-09-01 12:45 ` [RFC 11/12] media: hantro: Enable " Jonas Karlman
2019-09-01 12:45 ` [RFC 12/12] media: hantro: Enable H264 decoding on RK3328 Jonas Karlman
2019-09-02 13:02 ` [PATCH RFC 00/12] media: hantro: H264 fixes and improvements Ezequiel Garcia
2019-09-02 16:28 ` Jonas Karlman
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