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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Hans Verkuil <hverkuil@xs4all.nl>
Cc: linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	Thierry Reding <thierry.reding@gmail.com>,
	Hans Verkuil <hansverk@cisco.com>
Subject: Re: [PATCH 1/2] drivers/video/hdmi: allow for larger-than-needed vendor IF
Date: Tue, 21 Nov 2017 17:27:26 +0200	[thread overview]
Message-ID: <20171121152726.GE10981@intel.com> (raw)
In-Reply-To: <dea1aedf-80f8-ad6d-2560-eb7a0b1936a3@xs4all.nl>

On Mon, Nov 20, 2017 at 04:02:14PM +0100, Hans Verkuil wrote:
> On 11/20/2017 03:51 PM, Ville Syrjälä wrote:
> > On Mon, Nov 20, 2017 at 02:41:28PM +0100, Hans Verkuil wrote:
> >> From: Hans Verkuil <hansverk@cisco.com>
> >>
> >> Some devices (Windows Intel driver!) send a Vendor InfoFrame that
> >> uses a payload length of 0x1b instead of the length of 5 or 6
> >> that the unpack code expects. The InfoFrame is padded with 0 by
> >> the source.
> > 
> > So it doesn't put any 3D_Metadata stuff in there? We don't see to
> > have code to parse/generate any of that.
> 
> I can't remember if it puts any 3D stuff in there. Let me know if you
> want me to check this later this week.

Would be nice to know.

I guess we should really add code to parse/generate that stuff too,
otherwise we're going to be lying when we unpack an infoframe with that
stuff present.

-- 
Ville Syrjälä
Intel OTC

  reply	other threads:[~2017-11-21 15:27 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-20 13:41 [PATCH 0/2] video/hdmi: two fixes Hans Verkuil
2017-11-20 13:41 ` [PATCH 1/2] drivers/video/hdmi: allow for larger-than-needed vendor IF Hans Verkuil
2017-11-20 14:51   ` Ville Syrjälä
2017-11-20 15:02     ` Hans Verkuil
2017-11-21 15:27       ` Ville Syrjälä [this message]
2017-11-23 11:57         ` Hans Verkuil
2017-11-20 13:41 ` [PATCH 2/2] hdmi: audio infoframe log: corrected channel count Hans Verkuil

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