[streaming] Re: USB Cameras....

[Richard Ham]

Tristan,

Thanks for your answer - I know I've been asking heaps of q's lately -
I think you blokes have done a ripper of a job!! Hat's off to you!

> All the key is in src/modules/v4lreader.cpp. Maybe I forgot some
cases,
> I'm sure this part of code can be more tolerant and support more
> webcams.

OK, I'll go looking and see if I can figure out where and how. (My C++
is 10 yrs old, and I haven't touched it since I learnt it)

> Speaking about palette, vls will successively try YUV420P, YUV422
and
> RGB24. The reason for not trying more palette is I am not sure if
ffmpeg
> can convert and handle other v4l palette. Probably, but I have to
try.

Very good - I'll have a look - I don't know which palettes the
quickcam express I'm playing with uses - maybe something for me to
work on....

> To debug, modifying ioctl to a new function with a printf associated
> would be great... anyway, 'strace' can be of great help for quick
debug.

Uh huh. I *love* strace. No, I'm not being sarcastic! Something to get
into... I still haven't worked out where the segv is coming from
either....

> I have to deal quickly with all that sound / palette pb and v4l....

Sympathies and best of luck!!

Regards,

Richard


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