Re: [Redbutton-devel] How to use RedButton

[Simon K. <s.k...@er...>]

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Hi,

Mario Rossi wrote:
> Hi,
> 
> I've been using red-button for a while but I'm not sure I'm using it properly.
> 
> Basically this is what I do:
> 
> 1) tzap -x "BBC ONE" && rb-download
> 2) I read the channel id of BBC ONE (4164)
> 3) tzap -x "BBC ONE" && rb-download 4164
> 
> in an other window
> 
> 4) rb-browser -d services/9018
> 

if rb-download and rb-browser are running on the same host, you should
just do

rb-downlaod 4165

then in the other window:

rb-browser -d

> Here are my questions?
> 
> 1) It seems that redbutton uses channels.conf now, but if I don't use
> tzap it cannot find anything. Is it able to tune at the beginning?
> 

it should be able to tune at the beginning, you should just be able to
do:

rb-download 4165

to get BBC1 - it uses the same code as tzap to tune, so it should work!

> 2) If there is alreay an application using the dvb-t card it fails
> ERROR: failed opening '/dev/dvb/adapter0/frontend0' (Device or resource busy)
> while i remember I used to be able to use it on the same frequency of
> the already displayed channel.
> 

it tries to open the frontend device read/write first, if this fails it
prints something like "you will not be able to retune", then tries to
open the frontend read-only - that should work, even if another process
is using the frontend (I can use rb-download while mythtv is running on
the same machine - I just can't retune then)

that error message doesn't look like one from rb-download

> 3) I MUST use (-d) otherwise it behaves very bad. The video is slow or
> not moving at all. And it does not respond always to the key pressed
> 
> Those are some of the warnings:
> [mpeg2video @ 0xb7cf0a44]invalid cbp at 33 34
> [mpeg2video @ 0xb7cf0a44]00 motion_type at 15 35
> [mpeg2video @ 0xb7cf0a44]concealing 1218 DC, 1218 AC, 1218 MV errors
> [mp3 @ 0xb7cf0a44]incorrect frame size
> [mpeg2video @ 0xb7cf0a44]ac-tex damaged at 2 0
> [mpeg2video @ 0xb7cf0a44]ac-tex damaged at 3 1
> [mpeg2video @ 0xb7cf0a44]ac-tex damaged at 8 2
> [mpeg2video @ 0xb7cf0a44]ac-tex damaged at 1 3
> 

yep, the video output method I use is probably the slowest you can have,
but it does work on everything, as long as the processor can keep up! -
on my TODO list is adding things like SDL, XVideo, OpenGL, etc video
output methods, which use the graphics card more and the CPU less so
that should solve these errors

> 4) The only directory created under services/ is services/9018.
> Reading the documentation it seems that is should have the same number
> that is specified in rb-download.
> 

that shouldn't happen - you should get services/4165 if you do
rb-download 4165

try doing:

make clean
make

after you do an svn update to make sure everything gets rebuilt and so
is consistent.

> Would it be possible to know what is the current preferred way of
> running rb-download & rb-browser.
> 

use "scan" or whatever to generate a channels.conf file, and store it
in ~/.tzap/channels.conf

to list services on a given frequency, do either:

tzap -x "BBC ONE" && rb-download

or

dvbtune -f 722166667 -qam whatever etc && rb-download

or just grep channels.conf to find the service ID you want

to use a given service (eg 4165), do this in one terminal:

rb-download 4165

and this in another:

rb-browser -d

if you want to run rb-broswer on another host, run this on it:

rb-browser 10.0.0.1

assuming rb-download is running on IP 10.0.0.1

> I forgot to say that I'm using the latest "trunk" of both applications
> and latest SVN ffmpeg.
> 
> Thanks
> 

hope this helps!

- --
Simon Kilvington


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