Re: [yavta PATCH 7/9] Print timestamp type and source for dequeued buffers

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On Thursday 10 April 2014 21:58:41 Sakari Ailus wrote:
> Laurent Pinchart wrote:
> > Hi Sakari,
> > 
> > Thank you for the patch.
> > 
> > Given that the timestamp type and source are not supposed to change during
> > streaming, do we really need to print them for every frame ?
> 
> When processing frames from memory to memory (COPY timestamp type), the
> it is entirely possible that the timestamp source changes as the flags
> are copied from the OUTPUT buffer to the CAPTURE buffer.

It's possible, but is it allowed by the V4L2 API ?

> These patches do not support it but it is allowed.
> 
> One option would be to print the source on every frame only when the
> type is COPY. For a program like yavta this might be overly
> sophisticated IMO. :-)

My concern is that this makes the lines output by yavta pretty long.

-- 
Regards,

Laurent Pinchart

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