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From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
To: Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
	Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>,
	Hans de Goede <hdegoede@redhat.com>,
	linux-media@vger.kernel.org, Pawel Osciak <pawel@osciak.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>
Subject: Re: [PATCH/RFC v2 1/2] v4l: vb2: Don't return POLLERR during transient buffer underruns
Date: Mon, 15 Sep 2014 08:56:40 -0400	[thread overview]
Message-ID: <5416E208.5010302@collabora.com> (raw)
In-Reply-To: <11047185.EGVanoRbYV@avalon>


Le 2014-09-15 08:49, Laurent Pinchart a écrit :
> Reverting the patch will also be a regression, as that would break
> applications that now rely on the new behaviour (I've developed this patch to
> fix a problem I've noticed with gstreamer). One way or another, we're screwed
> and we'll break userspace.

We have worked around this issue in GStreamer 1.4+, for older version, 
the problem may be faced again by users, specially if using a newer 
libv4l2 where the locking has been fixed (or no libv4l2).

cheers,
Nicolas

  reply	other threads:[~2014-09-15 12:56 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-05 12:23 [PATCH/RFC v2 0/2] vb2: Report POLLERR for fatal errors only Laurent Pinchart
2014-06-05 12:23 ` [PATCH/RFC v2 1/2] v4l: vb2: Don't return POLLERR during transient buffer underruns Laurent Pinchart
2014-06-06  5:15   ` Pawel Osciak
2014-06-06  9:50   ` Hans de Goede
2014-06-06  9:58     ` Hans Verkuil
2014-06-06 13:42       ` Laurent Pinchart
2014-09-15 11:14         ` Hans Verkuil
2014-09-15 12:02           ` Mauro Carvalho Chehab
2014-09-15 12:49             ` Laurent Pinchart
2014-09-15 12:56               ` Nicolas Dufresne [this message]
2014-09-15 13:55                 ` Mauro Carvalho Chehab
2014-09-15 14:33                   ` Nicolas Dufresne
2014-09-15 15:51                     ` Mauro Carvalho Chehab
2014-09-16 10:29           ` Laurent Pinchart
2014-09-16 11:18             ` Hans Verkuil
2014-09-16 12:19               ` Laurent Pinchart
2014-06-05 12:23 ` [PATCH/RFC v2 2/2] v4l: vb2: Add fatal error condition flag Laurent Pinchart
2014-06-06  5:31   ` Pawel Osciak
2014-06-06  9:19     ` Laurent Pinchart
2014-06-06  9:31       ` Hans Verkuil
2014-06-06  9:46         ` Laurent Pinchart
2014-06-06  9:55           ` Hans Verkuil
2014-06-06 13:42             ` Laurent Pinchart
2014-06-06 13:45               ` Hans Verkuil

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