Em 18-05-2011 16:46, Sakari Ailus escreveu:
> Hans Verkuil wrote:
>> Note that many video receivers cannot stall. You can't tell them to wait
>> until
>> the last buffer finished processing. This is different from some/most?
>> sensors.
>
> Not even image sensors. They just output the frame
Hans Verkuil wrote:
Note that many video receivers cannot stall. You can't tell them to wait until
the last buffer finished processing. This is different from some/most?
sensors.
Not even image sensors. They just output the frame data; if the receiver
runs out of buffers the data is just
Em 18-05-2011 16:46, Sakari Ailus escreveu:
Hans Verkuil wrote:
Note that many video receivers cannot stall. You can't tell them to wait
until
the last buffer finished processing. This is different from some/most?
sensors.
Not even image sensors. They just output the frame data; if the
Hans Verkuil wrote:
> Note that many video receivers cannot stall. You can't tell them to wait until
> the last buffer finished processing. This is different from some/most?
> sensors.
Not even image sensors. They just output the frame data; if the receiver
runs out of buffers the data is just
Em 17-05-2011 09:49, Mauro Carvalho Chehab escreveu:
Em 15-05-2011 18:10, Hans Verkuil escreveu:
On Saturday, May 14, 2011 13:46:03 Mauro Carvalho Chehab wrote:
Em 14-05-2011 13:02, Hans Verkuil escreveu:
On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
So, based at all I've
Em 16-05-2011 17:45, Guennadi Liakhovetski escreveu:
On Sat, 14 May 2011, Mauro Carvalho Chehab wrote:
Em 18-04-2011 17:15, Jesse Barker escreveu:
One of the big issues we've been faced with at Linaro is around GPU
and multimedia device integration, in particular the memory management
Em 16-05-2011 17:45, Guennadi Liakhovetski escreveu:
> On Sat, 14 May 2011, Mauro Carvalho Chehab wrote:
>
>> Em 18-04-2011 17:15, Jesse Barker escreveu:
>>> One of the big issues we've been faced with at Linaro is around GPU
>>> and multimedia device integration, in particular the memory
Em 17-05-2011 09:49, Mauro Carvalho Chehab escreveu:
> Em 15-05-2011 18:10, Hans Verkuil escreveu:
>> On Saturday, May 14, 2011 13:46:03 Mauro Carvalho Chehab wrote:
>>> Em 14-05-2011 13:02, Hans Verkuil escreveu:
On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
>>>
> So,
Em 15-05-2011 18:10, Hans Verkuil escreveu:
> On Saturday, May 14, 2011 13:46:03 Mauro Carvalho Chehab wrote:
>> Em 14-05-2011 13:02, Hans Verkuil escreveu:
>>> On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
>>
So, based at all I've seen, I'm pretty much convinced that the
On Sat, 14 May 2011, Mauro Carvalho Chehab wrote:
> Em 18-04-2011 17:15, Jesse Barker escreveu:
> > One of the big issues we've been faced with at Linaro is around GPU
> > and multimedia device integration, in particular the memory management
> > requirements for supporting them on ARM. This
On Saturday, May 14, 2011 13:46:03 Mauro Carvalho Chehab wrote:
> Em 14-05-2011 13:02, Hans Verkuil escreveu:
> > On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
>
> >> So, based at all I've seen, I'm pretty much convinced that the normal MMAP
> >> way of streaming
On Sat, 14 May 2011, Mauro Carvalho Chehab wrote:
Em 18-04-2011 17:15, Jesse Barker escreveu:
One of the big issues we've been faced with at Linaro is around GPU
and multimedia device integration, in particular the memory management
requirements for supporting them on ARM. This next
> > On both cases, the requirement is to pass a framebuffer between two
> > entities,
> > and not a video stream.
It may not even be a framebuffer. In many cases you'll pass a framebuffer
or some memory target (in DRI think probably a GEM handle), in fact in
theory you can do much of this now.
On Sun, May 15, 2011 at 4:27 PM, Alan Cox wrote:
>> > On both cases, the requirement is to pass a framebuffer between two
>> > entities,
>> > and not a video stream.
>
> It may not even be a framebuffer. In many cases you'll pass a framebuffer
> or some memory target (in DRI think probably a GEM
On Saturday, May 14, 2011 13:46:03 Mauro Carvalho Chehab wrote:
Em 14-05-2011 13:02, Hans Verkuil escreveu:
On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
So, based at all I've seen, I'm pretty much convinced that the normal MMAP
way of streaming
On both cases, the requirement is to pass a framebuffer between two
entities,
and not a video stream.
It may not even be a framebuffer. In many cases you'll pass a framebuffer
or some memory target (in DRI think probably a GEM handle), in fact in
theory you can do much of this now.
use
On Sun, May 15, 2011 at 4:27 PM, Alan Cox a...@lxorguk.ukuu.org.uk wrote:
On both cases, the requirement is to pass a framebuffer between two
entities,
and not a video stream.
It may not even be a framebuffer. In many cases you'll pass a framebuffer
or some memory target (in DRI think
Em 14-05-2011 13:02, Hans Verkuil escreveu:
> On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
>> So, based at all I've seen, I'm pretty much convinced that the normal MMAP
>> way of streaming (VIDIOC_[REQBUF|STREAMON|STREAMOFF|QBUF|DQBUF ioctl's)
>> are not the best way to share
On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
> Em 18-04-2011 17:15, Jesse Barker escreveu:
> > One of the big issues we've been faced with at Linaro is around GPU
> > and multimedia device integration, in particular the memory management
> > requirements for supporting them on
Em 18-04-2011 17:15, Jesse Barker escreveu:
> One of the big issues we've been faced with at Linaro is around GPU
> and multimedia device integration, in particular the memory management
> requirements for supporting them on ARM. This next cycle, we'll be
> focusing on driving consensus around a
On Saturday, May 14, 2011 12:19:18 Mauro Carvalho Chehab wrote:
Em 18-04-2011 17:15, Jesse Barker escreveu:
One of the big issues we've been faced with at Linaro is around GPU
and multimedia device integration, in particular the memory management
requirements for supporting them on ARM.
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