linux-kernel - Re: [PATCH v4 0/4] Add Synopsys DesignWare HDMI RX Controller

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <3c388a51fef3d2c284fe7648ffd7215e097980a9.camel@collabora.com>
Date: Tue, 06 Aug 2024 17:17:58 -0400
From: Nicolas Dufresne <nicolas.dufresne@...labora.com>
To: Tim Surber <me@...surber.de>, Dmitry Osipenko
 <dmitry.osipenko@...labora.com>, Shreeya Patel
 <shreeya.patel@...labora.com>,  heiko@...ech.de, mchehab@...nel.org,
 robh@...nel.org, krzk+dt@...nel.org,  conor+dt@...nel.org,
 mturquette@...libre.com, sboyd@...nel.org,  p.zabel@...gutronix.de,
 jose.abreu@...opsys.com, nelson.costa@...opsys.com, 
 shawn.wen@...k-chips.com, hverkuil@...all.nl, hverkuil-cisco@...all.nl
Cc: kernel@...labora.com, linux-kernel@...r.kernel.org, 
	linux-media@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v4 0/4] Add Synopsys DesignWare HDMI RX Controller

Hi Tim,

Le mardi 06 août 2024 à 22:37 +0200, Tim Surber a écrit :
> ###source set to 4k60fps####
> ---------------------------
> v4l2-ctl --verbose -d /dev/video1 
> --set-fmt-video=width=3840,height=2160,pixelformat='NV12' 
> --stream-mmap=4 --stream-skip=3 --stream-count=100 --stream-poll
> ---------------------------
> VIDIOC_QUERYCAP: ok
> VIDIOC_G_FMT: ok
> VIDIOC_S_FMT: ok
> Format Video Capture Multiplanar:
>      Width/Height      : 3840/2160
>      Pixel Format      : 'NV12' (Y/UV 4:2:0)
>      Field             : None
>      Number of planes  : 1
>      Flags             :
>      Colorspace        : sRGB
>      Transfer Function : Default
>      YCbCr/HSV Encoding: Default
>      Quantization      : Default
>      Plane 0           :
>         Bytes per Line : 3840
>         Size Image     : 8294400

You have highlighted a bug here. NV12 has 2 planes, but the size image only
allow for the luma to be stored.

   Size Image: 3840 * 2160 * 3 / 2 = 12441600 bytes.

Lets at least get that fixed, and check again.

Nicolas