[linux-dvb] typhoon usb dvb-t card low signal

Bertrand Marquis bertrand.marquis at gmail.com
Sat Mar 4 12:08:47 CET 2006


Hi everyone,

I'm still trying to make my  typhoon dvb-t usb box card work and i was 
wondering if that could help:

The output of dvbtraffic with tzap running in one channel is:
[bma at localhost ~]$ dvbtraffic
0000     3 p/s     0 kb/s     4 kbit
0131  1400 p/s   257 kb/s  2105 kbit
0132   103 p/s    18 kb/s   155 kbit
2000  1507 p/s   276 kb/s  2266 kbit
-PID--FREQ-----BANDWIDTH-BANDWIDTH-

Shouldn't i have more entries ?

The output of dvbsnoop is:
[bma at localhost ProjectX_Source_0.90.3.01]$ dvbsnoop -s pidscan
dvbsnoop V1.3.77 -- http://dvbsnoop.sourceforge.net/

---------------------------------------------------------
Transponder PID-Scan...
---------------------------------------------------------
PID found:    0 (0x0000)  [SECTION: Program Association Table (PAT)]
PID found:    1 (0x0001)  [SECTION: Conditional Access Table (CAT)]
PID found:   16 (0x0010)  [SECTION: Network Information Table (NIT) - actual 
network]
PID found:   17 (0x0011)  [SECTION: Service Description Table (SDT) - actual 
transport stream]
PID found:   18 (0x0012)  [SECTION: Event Information Table (EIT) - actual 
transport stream, schedule]
PID found:   20 (0x0014)  [SECTION: Time Date Table (TDT)]
PID found:   21 (0x0015)  [SECTION: ITU-T Rec. H.222.0|ISO/IEC13818 reserved]
PID found:   48 (0x0030)  [SECTION: DSM-CC - Download Data Messages (DDB)]
PID found:  161 (0x00a1)  [PES: ITU-T Rec. H.262 | ISO/IEC 13818-2 or ISO/IEC 
11172-2 video stream]
PID found:  162 (0x00a2)  [PES: ISO/IEC 13818-3 or ISO/IEC 11172-3 audio 
stream]
PID found:  167 (0x00a7)  [PES: private_stream_1]
PID found:  225 (0x00e1)
PID found:  231 (0x00e7)

An other wird point is that when i try to run tzap and then open mplayer or 
xine using /dev/dvb/adaptor0/dvr0 they hang waiting for data. In fact doing a 
cat on dvr0 or a dd to a file result in no data at all. Does anyone knows 
why?

When i start mplayer or xine using dvb://channel coming from the configuration 
file than i have something at first and then the buffer become empty and i 
have nothing more. It seems that the data has a very slow rate and so at 
first the players are able to decode a part of images and sound but buffer 
became empty after a short time and then i have nothing more. Making the 
buffer a log bigger just allow to see part of the images and sound for a 
little bit more longer.

Thanks in advance

Bertrand

Le Samedi 25 Février 2006 16:43, Bertrand Marquis a écrit :
> Hi,
>
> i tried to increase/decrease the mplayer cache, but nothing change, only i
> have a little bit more parts of the image until the cache became empty.
>
> When i put 50Mo of cache i have some parts of the image and the cache
> decrease really fast, it seems that once mplayer is playing pratically
> nothing comes out of the driver and then i have no image at all.
>
> Bertrand
>
>
>
>
>
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