OK szap is looking better, and I feel so close...

OK szap is looking better, and I feel so close...

[Morgan Read]

OK, think I might be getting somewhere...

I've been able to have szap put out something sensible looking:

[user@vortexbox ~]$ dvbtune -f 1183000 -s 22500 -p h -m
Using DVB card "Conexant CX24123/CX24109"
tuning DVB-S to L-Band:0, Pol:H Srate=22500000, 22kHz=off
ERROR setting tone
: Invalid argument
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
Bit error rate: 0
Signal strength: 61952
SNR: 58030
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI FE_HAS_SYNC
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=61952, Verror=0, SNR=57861dB, BlockErrors=0, (S|L|C|V|SY|)
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=61952, Verror=0, SNR=57426dB, BlockErrors=0, (S|L|C|V|SY|)
FE READ UNCORRECTED BLOCKS: : Operation not supported
Signal=61952, Verror=0, SNR=57853dB, BlockErrors=0, (S|L|C|V|SY|)
^C
[user@vortexbox ~]$ dvbtune -f 1183000 -s 22500 -p h -m 2>/dev/null &
[1] 27306
[user@vortexbox ~]$ scandvb -cva 0 -U -o zap
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
PAT
PMT 0x1100 for service 0xfffe
PMT 0x0056 for service 0x233e
PMT 0x010f for service 0x0776
PMT 0x0111 for service 0x0775
PMT 0x010c for service 0x0774
PMT 0x010b for service 0x0770
PMT 0x0110 for service 0x040e
PMT 0x010e for service 0x040c
PMT 0x010d for service 0x040b
PMT 0x010a for service 0x0401
SDT (actual TS)
0x0000 0x0775: pmt_pid 0x0111 Television New Zealand -- TV ONE (running)
0x0000 0x0401: pmt_pid 0x010a Maori Television Service -- Maori TV (running)
0x0000 0x040b: pmt_pid 0x010d Television New Zealand -- TV ONE (running)
0x0000 0x040c: pmt_pid 0x010e Television New Zealand -- TV2 (running)
0x0000 0x0776: pmt_pid 0x010f Television New Zealand -- TV ONE (running)
0x0000 0x040e: pmt_pid 0x0110 Television New Zealand -- TVNZ 7 (running)
0x0000 0x0774: pmt_pid 0x010c Television New Zealand Ltd. -- TV ONE (running)
0x0000 0x0770: pmt_pid 0x010b Television New Zealand -- U (running)
0x0000 0x233e: pmt_pid 0x0056 SKY -- TS 22 IEPG DATA SERVICE (running)
NIT (actual TS)
Network Name 'Freeview'
dumping lists (10 services)
Maori TV:12483:h:0:22500:514:652:1025
TV ONE:12483:h:0:22500:515:653:1035
TV2:12483:h:0:22500:516:654:1036
TVNZ 7:12483:h:0:22500:518:656:1038
U:12483:h:0:22500:512:650:1904
TV ONE:12483:h:0:22500:519:657:1908
TV ONE:12483:h:0:22500:513:651:1909
TV ONE:12483:h:0:22500:517:655:1910
TS 22 IEPG DATA SERVICE:12483:h:0:22500:0:0:9022
[000-fffe]:12483:h:0:22500:0:0:65534
Done.
[user@vortexbox ~]$ scandvb -cva 0 -U -o zap > channels.conf
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
PAT
PMT 0x1100 for service 0xfffe
PMT 0x0056 for service 0x233e
PMT 0x010f for service 0x0776
PMT 0x0111 for service 0x0775
PMT 0x010c for service 0x0774
PMT 0x010b for service 0x0770
PMT 0x0110 for service 0x040e
PMT 0x010e for service 0x040c
PMT 0x010d for service 0x040b
PMT 0x010a for service 0x0401
NIT (actual TS)
Network Name 'Freeview'
SDT (actual TS)
0x0000 0x0775: pmt_pid 0x0111 Television New Zealand -- TV ONE (running)
0x0000 0x0401: pmt_pid 0x010a Maori Television Service -- Maori TV (running)
0x0000 0x040b: pmt_pid 0x010d Television New Zealand -- TV ONE (running)
0x0000 0x040c: pmt_pid 0x010e Television New Zealand -- TV2 (running)
0x0000 0x0776: pmt_pid 0x010f Television New Zealand -- TV ONE (running)
0x0000 0x040e: pmt_pid 0x0110 Television New Zealand -- TVNZ 7 (running)
0x0000 0x0774: pmt_pid 0x010c Television New Zealand Ltd. -- TV ONE (running)
0x0000 0x0770: pmt_pid 0x010b Television New Zealand -- U (running)
0x0000 0x233e: pmt_pid 0x0056 SKY -- TS 22 IEPG DATA SERVICE (running)
dumping lists (10 services)
Done.
[user@vortexbox ~]$ cp channels.conf ~/.szap/channels.conf
[user@vortexbox ~]$ szap -r TV2
reading channels from file '/home/user/.szap/channels.conf'
zapping to 3 'TV2':
sat 0, frequency = 12483 MHz H, symbolrate 22500000, vpid = 0x0204,
apid = 0x028e
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
opening frontend failed: Device or resource busy
[user@vortexbox ~]$ fg
dvbtune -f 1183000 -s 22500 -p h -m 2> /dev/null
^C
[user@vortexbox ~]$ szap -r TV2
reading channels from file '/home/user/.szap/channels.conf'
zapping to 3 'TV2':
sat 0, frequency = 12483 MHz H, symbolrate 22500000, vpid = 0x0204,
apid = 0x028e
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
status 01 | signal fa00 | snr f772 | ber 00000000 | unc fffffffe |
status 01 | signal 0f00 | snr a344 | ber 00000000 | unc fffffffe |
status 01 | signal 0f00 | snr a423 | ber 00000000 | unc fffffffe |
... ... ...
^C
[user@vortexbox ~]$

And, while szap -r TV2 is running, on another console I should be able
to run mplayer?  So:
[user@vortexbox ~]$ mplayer -vo x11 /dev/dvb/adapter0/dvr0
MPlayer SVN-r33254-snapshot-4.5.1 (C) 2000-2011 MPlayer Team
162 audio & 360 video codecs
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing /dev/dvb/adapter0/dvr0.


MPlayer interrupted by signal 2 in module: demux_open


MPlayer interrupted by signal 2 in module: demux_open
[user@vortexbox ~]$

But, nothing happens at Playing /dev/dvb/adapter0/dvr0. ...  Where
should I see what's playing?

Thanks for listening,
M

Re: OK szap is looking better, and I feel so close...

[Robert Longbottom]

On 30/04/2011 10:37, Morgan Read wrote:
> OK, think I might be getting somewhere...
>
<snip>

> [user@vortexbox ~]$ szap -r TV2
> reading channels from file '/home/user/.szap/channels.conf'
> zapping to 3 'TV2':
> sat 0, frequency = 12483 MHz H, symbolrate 22500000, vpid = 0x0204,
> apid = 0x028e
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> status 01 | signal fa00 | snr f772 | ber 00000000 | unc fffffffe |
> status 01 | signal 0f00 | snr a344 | ber 00000000 | unc fffffffe |
> status 01 | signal 0f00 | snr a423 | ber 00000000 | unc fffffffe |
> ... ... ...
> ^C

I'd expect to see (from memory) FE_HAS_LOCK on the end of those lines, 
so something more like this:

status 01 | signal fa00 | snr f772 | ber 00000000 | unc fffffffe | 
FE_HAS_LOCK

Looks like it hasn't locked on to the channel for some reason.  I think 
this is probably your problem, though I don't know what you should do to 
fix it...

> [user@vortexbox ~]$
>
> And, while szap -r TV2 is running, on another console I should be able
> to run mplayer?  So:
> [user@vortexbox ~]$ mplayer -vo x11 /dev/dvb/adapter0/dvr0
> MPlayer SVN-r33254-snapshot-4.5.1 (C) 2000-2011 MPlayer Team
> 162 audio&  360 video codecs
> Can't open joystick device /dev/input/js0: No such file or directory
> Can't init input joystick
> mplayer: could not connect to socket
> mplayer: No such file or directory
> Failed to open LIRC support. You will not be able to use your remote control.
>
> Playing /dev/dvb/adapter0/dvr0.
>
>
> MPlayer interrupted by signal 2 in module: demux_open
>
>
> MPlayer interrupted by signal 2 in module: demux_open
> [user@vortexbox ~]$
>
> But, nothing happens at Playing /dev/dvb/adapter0/dvr0. ...  Where
> should I see what's playing?

I usually do:

$ cat /dev/dvb/adapter0/dvr0 > recording.mpg

and then in another terminal

$ mplayer recording.mpg

Though it doesn't look like thats your problem, but at least you can see 
if any data is being retrieved if the file grows in size.

Robert.

Re: OK szap is looking better, and I feel so close...

[Morgan Read]

On 30/04/11 22:00, Robert Longbottom wrote:
> On 30/04/2011 10:37, Morgan Read wrote:
>> OK, think I might be getting somewhere...
>>
> <snip>
> 
>> [user@vortexbox ~]$ szap -r TV2
>> reading channels from file '/home/user/.szap/channels.conf'

...

>> But, nothing happens at Playing /dev/dvb/adapter0/dvr0. ...  Where
>> should I see what's playing?
> 
> I usually do:
> 
> $ cat /dev/dvb/adapter0/dvr0 > recording.mpg
> 
> and then in another terminal
> 
> $ mplayer recording.mpg
> 
> Though it doesn't look like thats your problem, but at least you can see
> if any data is being retrieved if the file grows in size.

Robert, thanks for your help!!!
Didn't get far with

$ cat /dev/dvb/adapter0/dvr0 > recording.mpg
$ mplayer recording.mpg
[vortexbox.lan ~]# cat /dev/dvb/adapter0/dvr0 > recording.mpg
^C
[vortexbox.lan ~]# ls -l
total 36
-rw-rw-r-- 1 user user  368 Apr 30 21:11 channels.conf
drwxr-xr-x 2 user user 4096 Apr 30 12:55 Desktop
drwxr-xr-x 2 user user 4096 Apr 29 22:22 Documents
drwxr-xr-x 2 user user 4096 Apr 29 22:34 Downloads
drwxr-xr-x 2 user user 4096 Apr 25 00:06 Music
drwxr-xr-x 2 user user 4096 Apr 25 00:06 Pictures
drwxr-xr-x 2 user user 4096 Apr 25 00:06 Public
-rw-rw-r-- 1 user user    0 Apr 30 22:53 recording.mpg
drwxr-xr-x 2 user user 4096 Apr 25 00:06 Templates
drwxr-xr-x 2 user user 4096 Apr 25 00:06 Videos
[vortexbox.lan ~]#

BUT, that gave me an idea...

[vortexbox.lan ~]# dvbstream -f 1183 -s 22500 -p h -o 512 650 >
recording.mpg
dvbstream v0.5 - (C) Dave Chapman 2001-2004
Released under the GPL.
Latest version available from http://www.linuxstb.org/
Using DVB card "Conexant CX24123/CX24109"
tuning DVB-S to L-Band:1, Pol:H Srate=22500000, 22kHz=off
ERROR setting tone
: Invalid argument
polling....
Getting frontend event
FE_STATUS:
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL
polling....
Getting frontend event
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
FE_HAS_SYNC
Event:  Frequency: 11783000
        SymbolRate: 22500000
        FEC_inner:  3

Bit error rate: 0
Signal strength: 61952
SNR: 57635
FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
FE_HAS_SYNC
Setting filter for PID 512
Setting filter for PID 650
Output to stdout
Streaming 2 streams

Which produced this:

[user@vortexbox ~]$ mplayer recording.mpg
MPlayer SVN-r33254-snapshot-4.5.1 (C) 2000-2011 MPlayer Team
162 audio & 360 video codecs
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote
control.

Playing recording.mpg.
TS file format detected.
VIDEO MPEG2(pid=512) AUDIO MPA(pid=650) NO SUBS (yet)!  PROGRAM N. 0
VIDEO:  MPEG2  720x576  (aspect 3)  25.000 fps  15000.0 kbps (1875.0
kbyte/s)
Load subtitles in ./
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
==========================================================================
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000)
Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
AO: [pulse] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
[VD_FFMPEG] Trying pixfmt=0.
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
[VD_FFMPEG] Trying pixfmt=1.
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
[VD_FFMPEG] Trying pixfmt=2.
Could not find matching colorspace - retrying with -vf scale...
Opening video filter: [scale]
The selected video_out device is incompatible with this codec.
Try appending the scale filter to your filter list,
e.g. -vf spp,scale instead of -vf spp.
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [xv] 720x576 => 1024x576 Planar YV12
A:90135.5 V:90135.5 A-V:  0.001 ct:  0.093 13786/13786  6%  0%  0.5% 0 0


MPlayer interrupted by signal 2 in module: sleep_timer
A:90135.6 V:90135.6 A-V:  0.001 ct:  0.093 13787/13787  6%  0%  0.5% 0 0

Exiting... (Quit)
[user@vortexbox ~]$

And, moving pictures!!!

BUT what the frig am I watching of all the channels that have been
defined...?

Thanks very much for your help!!!  Now I just need to work out what's
going on!

Or, is the tuner simply stuck on what ever it was last put on?  And, if
so - how to change channels?

Regards,
Morgan
-- 
Morgan Read
NEW ZEALAND
<mailto:mstuffATreadDOTorgDOTnz>

Confused about DRM?
Get all the info you need at:
http://drm.info/

Re: OK szap is looking better, and I feel so close...

[Robert Longbottom]

On 30/04/2011 12:06, Morgan Read wrote:
> On 30/04/11 22:00, Robert Longbottom wrote:
>> On 30/04/2011 10:37, Morgan Read wrote:
>>> OK, think I might be getting somewhere...
>>>
>> <snip>
>>
>>> [user@vortexbox ~]$ szap -r TV2
>>> reading channels from file '/home/user/.szap/channels.conf'
>
> ...
>
>>> But, nothing happens at Playing /dev/dvb/adapter0/dvr0. ...  Where
>>> should I see what's playing?
>>
>> I usually do:
>>
>> $ cat /dev/dvb/adapter0/dvr0>  recording.mpg
>>
>> and then in another terminal
>>
>> $ mplayer recording.mpg
>>
>> Though it doesn't look like thats your problem, but at least you can see
>> if any data is being retrieved if the file grows in size.
>
> Robert, thanks for your help!!!
> Didn't get far with
>
> $ cat /dev/dvb/adapter0/dvr0>  recording.mpg
> $ mplayer recording.mpg
> [vortexbox.lan ~]# cat /dev/dvb/adapter0/dvr0>  recording.mpg
> ^C
> [vortexbox.lan ~]# ls -l
> total 36
> -rw-rw-r-- 1 user user  368 Apr 30 21:11 channels.conf
> drwxr-xr-x 2 user user 4096 Apr 30 12:55 Desktop
> drwxr-xr-x 2 user user 4096 Apr 29 22:22 Documents
> drwxr-xr-x 2 user user 4096 Apr 29 22:34 Downloads
> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Music
> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Pictures
> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Public
> -rw-rw-r-- 1 user user    0 Apr 30 22:53 recording.mpg
> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Templates
> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Videos
> [vortexbox.lan ~]#

Yes, I'm not that surpised that made no difference.  The problem it 
looks like you are having with the szap approach is that szap isn't 
locking onto a channel for some reason.  You aren't seeing those 
FE_HAS_LOCK messages in the szap output.  If you can sort that out, then 
szap + (cat +) mplayer should work.

> BUT, that gave me an idea...
>
> [vortexbox.lan ~]# dvbstream -f 1183 -s 22500 -p h -o 512 650>
> recording.mpg
> dvbstream v0.5 - (C) Dave Chapman 2001-2004
> Released under the GPL.
> Latest version available from http://www.linuxstb.org/
> Using DVB card "Conexant CX24123/CX24109"
> tuning DVB-S to L-Band:1, Pol:H Srate=22500000, 22kHz=off
> ERROR setting tone
> : Invalid argument
> polling....
> Getting frontend event
> FE_STATUS:
> polling....
> Getting frontend event
> FE_STATUS: FE_HAS_SIGNAL
> polling....
> Getting frontend event
> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
> FE_HAS_SYNC
> Event:  Frequency: 11783000
>          SymbolRate: 22500000
>          FEC_inner:  3
>
> Bit error rate: 0
> Signal strength: 61952
> SNR: 57635
> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
> FE_HAS_SYNC
> Setting filter for PID 512
> Setting filter for PID 650
> Output to stdout
> Streaming 2 streams
>
> Which produced this:
>
> [user@vortexbox ~]$ mplayer recording.mpg
> MPlayer SVN-r33254-snapshot-4.5.1 (C) 2000-2011 MPlayer Team
> 162 audio&  360 video codecs
> Can't open joystick device /dev/input/js0: No such file or directory
> Can't init input joystick
> mplayer: could not connect to socket
> mplayer: No such file or directory
> Failed to open LIRC support. You will not be able to use your remote
> control.
>
> Playing recording.mpg.
> TS file format detected.
> VIDEO MPEG2(pid=512) AUDIO MPA(pid=650) NO SUBS (yet)!  PROGRAM N. 0
> VIDEO:  MPEG2  720x576  (aspect 3)  25.000 fps  15000.0 kbps (1875.0
> kbyte/s)
> Load subtitles in ./
> ==========================================================================
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
> ==========================================================================
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000)
> Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> AO: [pulse] 48000Hz 2ch s16le (2 bytes per sample)
> Starting playback...
> [VD_FFMPEG] Trying pixfmt=0.
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> The selected video_out device is incompatible with this codec.
> Try appending the scale filter to your filter list,
> e.g. -vf spp,scale instead of -vf spp.
> [VD_FFMPEG] Trying pixfmt=1.
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> The selected video_out device is incompatible with this codec.
> Try appending the scale filter to your filter list,
> e.g. -vf spp,scale instead of -vf spp.
> [VD_FFMPEG] Trying pixfmt=2.
> Could not find matching colorspace - retrying with -vf scale...
> Opening video filter: [scale]
> The selected video_out device is incompatible with this codec.
> Try appending the scale filter to your filter list,
> e.g. -vf spp,scale instead of -vf spp.
> Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
> VO: [xv] 720x576 =>  1024x576 Planar YV12
> A:90135.5 V:90135.5 A-V:  0.001 ct:  0.093 13786/13786  6%  0%  0.5% 0 0
>
>
> MPlayer interrupted by signal 2 in module: sleep_timer
> A:90135.6 V:90135.6 A-V:  0.001 ct:  0.093 13787/13787  6%  0%  0.5% 0 0
>
> Exiting... (Quit)
> [user@vortexbox ~]$
>
> And, moving pictures!!!

At least you know your hardware is working :-)

>
> BUT what the frig am I watching of all the channels that have been
> defined...?

I'd say you are watching "U", because you passed arguments "512 650" to 
dvbstream (I'm not really familiar with dvbstream) and your channel list 
from when you ran dvsscan earlier listed these channels:

 > Network Name 'Freeview'
 > dumping lists (10 services)
 > Maori TV:12483:h:0:22500:514:652:1025
 > TV ONE:12483:h:0:22500:515:653:1035
 > TV2:12483:h:0:22500:516:654:1036
 > TVNZ 7:12483:h:0:22500:518:656:1038
 > U:12483:h:0:22500:512:650:1904
 > TV ONE:12483:h:0:22500:519:657:1908
 > TV ONE:12483:h:0:22500:513:651:1909
 > TV ONE:12483:h:0:22500:517:655:1910
 > TS 22 IEPG DATA SERVICE:12483:h:0:22500:0:0:9022
 > [000-fffe]:12483:h:0:22500:0:0:65534
 > Done.

and the channel "U" is U:12483:h:0:22500:512:650:1904, note the "512" 
and the "650".

Presumably if you run dvbstream with (eg) "515 653" instead you would 
get "TV ONE".


>
> Thanks very much for your help!!!  Now I just need to work out what's
> going on!
>
> Or, is the tuner simply stuck on what ever it was last put on?  And, if
> so - how to change channels?

As I understand it and based on my experience, if you run szap (and it 
gets a lock on a channel, which is looks like yours isn't for some 
reason) and then you stop szap the tuner will remain locked onto the 
channel for some period of time after you ^C szap.  But the tuner may 
(and usually does) drift off station and so out of tune.  I don't know 
what determines how long the tuner stays locked onto channel for and 
whether this is some specific timeout thats in the drivers, or whether 
it's just down to the way the electronics work.  This is why you need to 
keep szap running to keep the tuner locked onto the channel if you are 
doing this sort of thing with command line tools.  Of course if you use 
a "tv viewing application" it deals with all of this for you.

Keep trying!
Robert.

Re: OK szap is looking better, and I feel so close...

[Morgan Read]

On 30/04/11 23:50, Robert Longbottom wrote:
> On 30/04/2011 12:06, Morgan Read wrote:
>> On 30/04/11 22:00, Robert Longbottom wrote:
>>> On 30/04/2011 10:37, Morgan Read wrote:
>>>> OK, think I might be getting somewhere...
>>>>
>>> <snip>
>>>
>>>> [user@vortexbox ~]$ szap -r TV2
>>>> reading channels from file '/home/user/.szap/channels.conf'
>>
>> ...
>>
>>>> But, nothing happens at Playing /dev/dvb/adapter0/dvr0. ...  Where
>>>> should I see what's playing?
>>>
>>> I usually do:
>>>
>>> $ cat /dev/dvb/adapter0/dvr0>  recording.mpg
>>>
>>> and then in another terminal
>>>
>>> $ mplayer recording.mpg
>>>
>>> Though it doesn't look like thats your problem, but at least you can see
>>> if any data is being retrieved if the file grows in size.
>>
>> Robert, thanks for your help!!!
>> Didn't get far with
>>
>> $ cat /dev/dvb/adapter0/dvr0>  recording.mpg
>> $ mplayer recording.mpg
>> [vortexbox.lan ~]# cat /dev/dvb/adapter0/dvr0>  recording.mpg
>> ^C
>> [vortexbox.lan ~]# ls -l
>> total 36
>> -rw-rw-r-- 1 user user  368 Apr 30 21:11 channels.conf
>> drwxr-xr-x 2 user user 4096 Apr 30 12:55 Desktop
>> drwxr-xr-x 2 user user 4096 Apr 29 22:22 Documents
>> drwxr-xr-x 2 user user 4096 Apr 29 22:34 Downloads
>> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Music
>> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Pictures
>> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Public
>> -rw-rw-r-- 1 user user    0 Apr 30 22:53 recording.mpg
>> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Templates
>> drwxr-xr-x 2 user user 4096 Apr 25 00:06 Videos
>> [vortexbox.lan ~]#
> 
> Yes, I'm not that surpised that made no difference.  The problem it
> looks like you are having with the szap approach is that szap isn't
> locking onto a channel for some reason.  You aren't seeing those
> FE_HAS_LOCK messages in the szap output.  If you can sort that out, then
> szap + (cat +) mplayer should work.
> 
>> BUT, that gave me an idea...
>>
>> [vortexbox.lan ~]# dvbstream -f 1183 -s 22500 -p h -o 512 650>
>> recording.mpg
>> dvbstream v0.5 - (C) Dave Chapman 2001-2004
>> Released under the GPL.
>> Latest version available from http://www.linuxstb.org/
>> Using DVB card "Conexant CX24123/CX24109"
>> tuning DVB-S to L-Band:1, Pol:H Srate=22500000, 22kHz=off
>> ERROR setting tone
>> : Invalid argument
>> polling....
>> Getting frontend event
>> FE_STATUS:
>> polling....
>> Getting frontend event
>> FE_STATUS: FE_HAS_SIGNAL
>> polling....
>> Getting frontend event
>> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
>> FE_HAS_SYNC
>> Event:  Frequency: 11783000
>>          SymbolRate: 22500000
>>          FEC_inner:  3
>>
>> Bit error rate: 0
>> Signal strength: 61952
>> SNR: 57635
>> FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_VITERBI
>> FE_HAS_SYNC
>> Setting filter for PID 512
>> Setting filter for PID 650
>> Output to stdout
>> Streaming 2 streams
>>
>> Which produced this:
>>
>> [user@vortexbox ~]$ mplayer recording.mpg
>> MPlayer SVN-r33254-snapshot-4.5.1 (C) 2000-2011 MPlayer Team
>> 162 audio&  360 video codecs
>> Can't open joystick device /dev/input/js0: No such file or directory
>> Can't init input joystick
>> mplayer: could not connect to socket
>> mplayer: No such file or directory
>> Failed to open LIRC support. You will not be able to use your remote
>> control.
>>
>> Playing recording.mpg.
>> TS file format detected.
>> VIDEO MPEG2(pid=512) AUDIO MPA(pid=650) NO SUBS (yet)!  PROGRAM N. 0
>> VIDEO:  MPEG2  720x576  (aspect 3)  25.000 fps  15000.0 kbps (1875.0
>> kbyte/s)
>> Load subtitles in ./
>> ==========================================================================
>>
>> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>> Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)
>> ==========================================================================
>>
>> ==========================================================================
>>
>> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
>> AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000)
>> Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
>> ==========================================================================
>>
>> AO: [pulse] 48000Hz 2ch s16le (2 bytes per sample)
>> Starting playback...
>> [VD_FFMPEG] Trying pixfmt=0.
>> Could not find matching colorspace - retrying with -vf scale...
>> Opening video filter: [scale]
>> The selected video_out device is incompatible with this codec.
>> Try appending the scale filter to your filter list,
>> e.g. -vf spp,scale instead of -vf spp.
>> [VD_FFMPEG] Trying pixfmt=1.
>> Could not find matching colorspace - retrying with -vf scale...
>> Opening video filter: [scale]
>> The selected video_out device is incompatible with this codec.
>> Try appending the scale filter to your filter list,
>> e.g. -vf spp,scale instead of -vf spp.
>> [VD_FFMPEG] Trying pixfmt=2.
>> Could not find matching colorspace - retrying with -vf scale...
>> Opening video filter: [scale]
>> The selected video_out device is incompatible with this codec.
>> Try appending the scale filter to your filter list,
>> e.g. -vf spp,scale instead of -vf spp.
>> Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
>> VO: [xv] 720x576 =>  1024x576 Planar YV12
>> A:90135.5 V:90135.5 A-V:  0.001 ct:  0.093 13786/13786  6%  0%  0.5% 0 0
>>
>>
>> MPlayer interrupted by signal 2 in module: sleep_timer
>> A:90135.6 V:90135.6 A-V:  0.001 ct:  0.093 13787/13787  6%  0%  0.5% 0 0
>>
>> Exiting... (Quit)
>> [user@vortexbox ~]$
>>
>> And, moving pictures!!!
> 
> At least you know your hardware is working :-)
> 
>>
>> BUT what the frig am I watching of all the channels that have been
>> defined...?
> 
> I'd say you are watching "U", because you passed arguments "512 650" to
> dvbstream (I'm not really familiar with dvbstream) and your channel list
> from when you ran dvsscan earlier listed these channels:
> 
>> Network Name 'Freeview'
>> dumping lists (10 services)
>> Maori TV:12483:h:0:22500:514:652:1025
>> TV ONE:12483:h:0:22500:515:653:1035
>> TV2:12483:h:0:22500:516:654:1036
>> TVNZ 7:12483:h:0:22500:518:656:1038
>> U:12483:h:0:22500:512:650:1904
>> TV ONE:12483:h:0:22500:519:657:1908
>> TV ONE:12483:h:0:22500:513:651:1909
>> TV ONE:12483:h:0:22500:517:655:1910
>> TS 22 IEPG DATA SERVICE:12483:h:0:22500:0:0:9022
>> [000-fffe]:12483:h:0:22500:0:0:65534
>> Done.
> 
> and the channel "U" is U:12483:h:0:22500:512:650:1904, note the "512"
> and the "650".
> 
> Presumably if you run dvbstream with (eg) "515 653" instead you would
> get "TV ONE".
> 
> 
>>
>> Thanks very much for your help!!!  Now I just need to work out what's
>> going on!
>>
>> Or, is the tuner simply stuck on what ever it was last put on?  And, if
>> so - how to change channels?
> 
> As I understand it and based on my experience, if you run szap (and it
> gets a lock on a channel, which is looks like yours isn't for some
> reason) and then you stop szap the tuner will remain locked onto the
> channel for some period of time after you ^C szap.  But the tuner may
> (and usually does) drift off station and so out of tune.  I don't know
> what determines how long the tuner stays locked onto channel for and
> whether this is some specific timeout thats in the drivers, or whether
> it's just down to the way the electronics work.  This is why you need to
> keep szap running to keep the tuner locked onto the channel if you are
> doing this sort of thing with command line tools.  Of course if you use
> a "tv viewing application" it deals with all of this for you.
> 
> Keep trying!
> Robert.
Hay, thanks Robert - Now I can both watch tv and change channels!!!
That's enough success for 1 night zzzzzzzzzzzz

Thanks,
m.

-- 
Morgan Read
NEW ZEALAND
<mailto:mstuffATreadDOTorgDOTnz>

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