Re: DRM Format Modifiers in v4l2

2017-09-03 Thread Daniel Vetter
On Fri, Sep 1, 2017 at 2:43 PM, Rob Clark wrote: > On Fri, Sep 1, 2017 at 3:13 AM, Laurent Pinchart > wrote: >> Hi Nicolas, >> >> On Thursday, 31 August 2017 19:12:58 EEST Nicolas Dufresne wrote: >>> Le jeudi 31 août 2017 à 17:28 +0300,

Re: DRM Format Modifiers in v4l2

2017-09-01 Thread Rob Clark
On Fri, Sep 1, 2017 at 3:13 AM, Laurent Pinchart wrote: > Hi Nicolas, > > On Thursday, 31 August 2017 19:12:58 EEST Nicolas Dufresne wrote: >> Le jeudi 31 août 2017 à 17:28 +0300, Laurent Pinchart a écrit : >> >> e.g. if I have two devices which support

Re: DRM Format Modifiers in v4l2

2017-09-01 Thread Laurent Pinchart
Hi Nicolas, On Thursday, 31 August 2017 19:12:58 EEST Nicolas Dufresne wrote: > Le jeudi 31 août 2017 à 17:28 +0300, Laurent Pinchart a écrit : > >> e.g. if I have two devices which support MODIFIER_FOO, I could attempt > >> to share a buffer between them which uses MODIFIER_FOO without > >>

Re: DRM Format Modifiers in v4l2

2017-08-31 Thread Nicolas Dufresne
Le jeudi 31 août 2017 à 17:28 +0300, Laurent Pinchart a écrit : > > e.g. if I have two devices which support MODIFIER_FOO, I could attempt > > to share a buffer between them which uses MODIFIER_FOO without > > necessarily knowing exactly what it is/does. > > Userspace could certainly set

Re: DRM Format Modifiers in v4l2

2017-08-31 Thread Brian Starkey
Hi Laurent, On Thu, Aug 31, 2017 at 05:51:33PM +0300, Laurent Pinchart wrote: Hi Brian, On Wednesday, 30 August 2017 13:32:01 EEST Brian Starkey wrote: On Wed, Aug 30, 2017 at 11:53:58AM +0200, Hans Verkuil wrote: > On 30/08/17 11:36, Brian Starkey wrote: >> On Wed, Aug 30, 2017 at 10:10:01AM

Re: DRM Format Modifiers in v4l2

2017-08-31 Thread Laurent Pinchart
Hi Brian, On Wednesday, 30 August 2017 13:32:01 EEST Brian Starkey wrote: > On Wed, Aug 30, 2017 at 11:53:58AM +0200, Hans Verkuil wrote: > > On 30/08/17 11:36, Brian Starkey wrote: > >> On Wed, Aug 30, 2017 at 10:10:01AM +0200, Hans Verkuil wrote: > >>> On 30/08/17 09:50, Daniel Vetter wrote: >

Re: DRM Format Modifiers in v4l2

2017-08-31 Thread Laurent Pinchart
Hi Brian, On Tuesday, 29 August 2017 12:19:43 EEST Brian Starkey wrote: > On Fri, Aug 25, 2017 at 10:14:03AM +0200, Hans Verkuil wrote: > >On 24/08/17 14:26, Brian Starkey wrote: > >> On Thu, Aug 24, 2017 at 01:37:35PM +0200, Hans Verkuil wrote: > >>> On 08/24/17 13:14, Brian Starkey wrote: >

Re: DRM Format Modifiers in v4l2

2017-08-31 Thread Laurent Pinchart
Hi Brian, On Thursday, 24 August 2017 14:14:31 EEST Brian Starkey wrote: > On Mon, Aug 21, 2017 at 06:36:29PM +0200, Hans Verkuil wrote: > > On 08/21/2017 06:01 PM, Daniel Vetter wrote: > >> On Mon, Aug 21, 2017 at 5:52 PM, Brian Starkey wrote: > >>> Hi all, > >>> > >>> I couldn't find this

Re: DRM Format Modifiers in v4l2

2017-08-30 Thread Brian Starkey
On Wed, Aug 30, 2017 at 11:53:58AM +0200, Hans Verkuil wrote: On 30/08/17 11:36, Brian Starkey wrote: On Wed, Aug 30, 2017 at 10:10:01AM +0200, Hans Verkuil wrote: On 30/08/17 09:50, Daniel Vetter wrote: On Tue, Aug 29, 2017 at 10:47:01AM +0100, Brian Starkey wrote: The fact is, adding

Re: DRM Format Modifiers in v4l2

2017-08-30 Thread Hans Verkuil
On 30/08/17 11:36, Brian Starkey wrote: > On Wed, Aug 30, 2017 at 10:10:01AM +0200, Hans Verkuil wrote: >> On 30/08/17 09:50, Daniel Vetter wrote: >>> On Tue, Aug 29, 2017 at 10:47:01AM +0100, Brian Starkey wrote: The fact is, adding special formats for each combination is unmanageable -

Re: DRM Format Modifiers in v4l2

2017-08-30 Thread Brian Starkey
On Wed, Aug 30, 2017 at 10:10:01AM +0200, Hans Verkuil wrote: On 30/08/17 09:50, Daniel Vetter wrote: On Tue, Aug 29, 2017 at 10:47:01AM +0100, Brian Starkey wrote: The fact is, adding special formats for each combination is unmanageable - we're talking dozens in the case of our hardware. Hm

Re: DRM Format Modifiers in v4l2

2017-08-30 Thread Hans Verkuil
On 30/08/17 09:50, Daniel Vetter wrote: > On Tue, Aug 29, 2017 at 10:47:01AM +0100, Brian Starkey wrote: >> On Mon, Aug 28, 2017 at 10:49:07PM +0200, Daniel Vetter wrote: >>> On Mon, Aug 28, 2017 at 8:07 PM, Nicolas Dufresne >>> wrote: Le jeudi 24 ao??t 2017 ?? 13:26

Re: DRM Format Modifiers in v4l2

2017-08-30 Thread Daniel Vetter
On Tue, Aug 29, 2017 at 10:47:01AM +0100, Brian Starkey wrote: > On Mon, Aug 28, 2017 at 10:49:07PM +0200, Daniel Vetter wrote: > > On Mon, Aug 28, 2017 at 8:07 PM, Nicolas Dufresne > > wrote: > > > Le jeudi 24 ao??t 2017 ?? 13:26 +0100, Brian Starkey a ??crit : > > > > >

Re: DRM Format Modifiers in v4l2

2017-08-29 Thread Brian Starkey
On Mon, Aug 28, 2017 at 10:49:07PM +0200, Daniel Vetter wrote: On Mon, Aug 28, 2017 at 8:07 PM, Nicolas Dufresne wrote: Le jeudi 24 ao??t 2017 ?? 13:26 +0100, Brian Starkey a ??crit : > What I mean was: an application can use the modifier to give buffers from > one

Re: DRM Format Modifiers in v4l2

2017-08-29 Thread Brian Starkey
On Fri, Aug 25, 2017 at 10:14:03AM +0200, Hans Verkuil wrote: On 24/08/17 14:26, Brian Starkey wrote: On Thu, Aug 24, 2017 at 01:37:35PM +0200, Hans Verkuil wrote: On 08/24/17 13:14, Brian Starkey wrote: Hi Hans, On Mon, Aug 21, 2017 at 06:36:29PM +0200, Hans Verkuil wrote: On 08/21/2017

Re: DRM Format Modifiers in v4l2

2017-08-28 Thread Daniel Vetter
On Mon, Aug 28, 2017 at 8:07 PM, Nicolas Dufresne wrote: > Le jeudi 24 août 2017 à 13:26 +0100, Brian Starkey a écrit : >> > What I mean was: an application can use the modifier to give buffers from >> > one device to another without needing to understand it. >> > >> > But a

Re: DRM Format Modifiers in v4l2

2017-08-28 Thread Nicolas Dufresne
Le jeudi 24 août 2017 à 13:26 +0100, Brian Starkey a écrit : > > What I mean was: an application can use the modifier to give buffers from > > one device to another without needing to understand it. > > > > But a generic video capture application that processes the video itself > > cannot be

Re: DRM Format Modifiers in v4l2

2017-08-25 Thread Hans Verkuil
On 24/08/17 14:26, Brian Starkey wrote: > On Thu, Aug 24, 2017 at 01:37:35PM +0200, Hans Verkuil wrote: >> On 08/24/17 13:14, Brian Starkey wrote: >>> Hi Hans, >>> >>> On Mon, Aug 21, 2017 at 06:36:29PM +0200, Hans Verkuil wrote: On 08/21/2017 06:01 PM, Daniel Vetter wrote: > On Mon, Aug

Re: DRM Format Modifiers in v4l2

2017-08-24 Thread Brian Starkey
On Thu, Aug 24, 2017 at 01:37:35PM +0200, Hans Verkuil wrote: On 08/24/17 13:14, Brian Starkey wrote: Hi Hans, On Mon, Aug 21, 2017 at 06:36:29PM +0200, Hans Verkuil wrote: On 08/21/2017 06:01 PM, Daniel Vetter wrote: On Mon, Aug 21, 2017 at 5:52 PM, Brian Starkey

Re: DRM Format Modifiers in v4l2

2017-08-24 Thread Hans Verkuil
On 08/24/17 13:14, Brian Starkey wrote: > Hi Hans, > > On Mon, Aug 21, 2017 at 06:36:29PM +0200, Hans Verkuil wrote: >> On 08/21/2017 06:01 PM, Daniel Vetter wrote: >>> On Mon, Aug 21, 2017 at 5:52 PM, Brian Starkey >>> wrote: Hi all, I couldn't find this

Re: DRM Format Modifiers in v4l2

2017-08-24 Thread Brian Starkey
Hi Hans, On Mon, Aug 21, 2017 at 06:36:29PM +0200, Hans Verkuil wrote: On 08/21/2017 06:01 PM, Daniel Vetter wrote: On Mon, Aug 21, 2017 at 5:52 PM, Brian Starkey wrote: Hi all, I couldn't find this topic talked about elsewhere, but apologies if it's a duplicate -

Re: DRM Format Modifiers in v4l2

2017-08-21 Thread Hans Verkuil
On 08/21/2017 06:01 PM, Daniel Vetter wrote: > On Mon, Aug 21, 2017 at 5:52 PM, Brian Starkey wrote: >> Hi all, >> >> I couldn't find this topic talked about elsewhere, but apologies if >> it's a duplicate - I'll be glad to be steered in the direction of a >> thread. >> >>

Re: DRM Format Modifiers in v4l2

2017-08-21 Thread Brian Starkey
On Mon, Aug 21, 2017 at 06:01:24PM +0200, Daniel Vetter wrote: On Mon, Aug 21, 2017 at 5:52 PM, Brian Starkey wrote: Hi all, I couldn't find this topic talked about elsewhere, but apologies if it's a duplicate - I'll be glad to be steered in the direction of a thread.

Re: DRM Format Modifiers in v4l2

2017-08-21 Thread Daniel Vetter
On Mon, Aug 21, 2017 at 5:52 PM, Brian Starkey wrote: > Hi all, > > I couldn't find this topic talked about elsewhere, but apologies if > it's a duplicate - I'll be glad to be steered in the direction of a > thread. > > We'd like to support DRM format modifiers in v4l2 in