RE: RFC: V4L - Support for video timings at the input/output interface

2009-09-17 Thread Karicheri, Muralidharan
Jean-Philippe François, >> >> Component analog input/output interface - ED/HD video >> DVI - Digital only, ANALOG only, DVI integrated that support Digital and >> Analog; Dual Link - Where second data link is used for higher >> bandwidth >> SDI - Serial digital interface standardized by

Re: RFC: V4L - Support for video timings at the input/output interface

2009-09-17 Thread Jorge Luis Zapata Muga
On Mon, Sep 14, 2009 at 3:51 PM, Karicheri, Muralidharan wrote: > RFC: V4L - Support for video timings at the input/output interface > > Thanks to Hans Verkuil for his initial proposal and feedbacks to help write > this RFC. > > Version : 1.0 > > Background > ---

Re: RFC: V4L - Support for video timings at the input/output interface

2009-09-17 Thread Jean-Philippe François
Hans Verkuil a écrit : and so forth. So for a camera that supports pre-defined presets can set the CAP_FIXED_FRAME_RATE capability. So Auto exposure may not be available. If Auto exposure is available, the driver can indicate CAP_VARIABLE_FRAME_RATE. If a driver supports both, then both flags ca

Re: RFC: V4L - Support for video timings at the input/output interface

2009-09-16 Thread Hans Verkuil
On Wednesday 16 September 2009 23:04:42 Karicheri, Muralidharan wrote: > Hans, > > I was busy with some of the merge work and also some other issues. > So this delayed response... > > > > >Thanks for your work on this! > > You are most welcome ! > >> pixelclock - expressed in HZ. So for 74.25

RE: RFC: V4L - Support for video timings at the input/output interface

2009-09-16 Thread Karicheri, Muralidharan
Hi, >> >> 6. HDMI requires additional investigation. HDMI defines a whole bunch of >> infoframe fields. Most of these can probably be exported as >controls?? Is >> HDMI audio handled by alsa? > >7. how does this interface/co-exist with something like DSS2 on the omap3? > >who will "own" e.

RE: RFC: V4L - Support for video timings at the input/output interface

2009-09-16 Thread Karicheri, Muralidharan
Hans, I was busy with some of the merge work and also some other issues. So this delayed response... > >Thanks for your work on this! You are most welcome ! >> Where preset is one of the following values:- >> >> #defineV4L2_DV_CUSTOM0x >> #define V4L2_DV_480I59_94

Re: RFC: V4L - Support for video timings at the input/output interface

2009-09-15 Thread Jean-Philippe François
Karicheri, Muralidharan a écrit : RFC: V4L - Support for video timings at the input/output interface Thanks to Hans Verkuil for his initial proposal and feedbacks to help write this RFC. Version : 1.0 Thank you for this work. I have a few questions, regarding the other parameters or

Re: RFC: V4L - Support for video timings at the input/output interface

2009-09-15 Thread Vladimir Pantelic
Karicheri, Muralidharan wrote: Open issues --- 1.How to handle an HDMI transmitter? It can be put in two different modes: DVI compatible or HDMI compatible. Some of the choices are a) enumerate them as two different outputs when enumerating. b) adding a status bit on

Re: RFC: V4L - Support for video timings at the input/output interface

2009-09-14 Thread Hans Verkuil
Hi Murali, Thanks for your work on this! See below for a few notes I made. On Monday 14 September 2009 15:51:28 Karicheri, Muralidharan wrote: > RFC: V4L - Support for video timings at the input/output interface > > Thanks to Hans Verkuil for his initial proposal and feedbacks to h

RFC: V4L - Support for video timings at the input/output interface

2009-09-14 Thread Karicheri, Muralidharan
RFC: V4L - Support for video timings at the input/output interface Thanks to Hans Verkuil for his initial proposal and feedbacks to help write this RFC. Version : 1.0 Background --- Currently v4l2 specification supports capturing video frames from TV signals using tuners (input type