Eric B. wrote:
[Martin, can you please update or remove that example? Thanks.]
I removed the old broken tvrx_tv_rcv.py example and added new working
usrp_tv_rcv.py and usrp_tv_rcp_nogui.py
They work out of the box when you use realtime capturing and processing,
but then you need a high decimation factor (for my PC 64 or higher)
This means you get a much lower horizontal resolution then you want (you
really want decimation 4 or 8)
They can output to a file, so you can view it with imagemagick.
They can also output to a realtime sdl video window.
For this you need to build and install gr-video-sdl
(This is only in cvs and not yet in a tarball)
There is no synchronisation yet. I am still working on the sync blocks
but they still don’t work reliably.
Also note that when you want to receive a Tv channel that the
video-carrier is not at the centre of the channel.
When you want to first capture to file, you need a decent way of
capturing to interleaved shorts.
(usrp_rx_file.py is a bit outdated)
I made an updated version of usrp_rx_cfile.py which can also output
(It can also do 8 bit transfers and automatically disables halfband when
you use decimation < 8)
I attached a diff for usrp_rx_cfile.py to add these features to this
(Eric, if you like it, I can apply it to cvs)
If this new usrp_rx_cfile.py works fine, we should probably remove