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DVB-T VHF frequency- wrong value requested #29

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regrepl opened this issue Jan 15, 2024 · 0 comments
Open

DVB-T VHF frequency- wrong value requested #29

regrepl opened this issue Jan 15, 2024 · 0 comments

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@regrepl
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regrepl commented Jan 15, 2024

I'm having problem tunning to correct frequency in band VHF.

To recreate problem im describing folowing steps.
Using "Signal Finder"
screenshot_20240115220807

It seems fine

satipclient in debung mode

[9792.128][21804 rtsp.cpp            : 595][sendPlay                 ]   debug: PLAY DATA :
PLAY rtsp://SERVER-IP:554/stream=2?freq=191.5&bw=7&msys=dvbt RTSP/1.0
CSeq: 8
Session: 0221558440

Im getting scaning results
screenshot_20240115220828

However when I'm trying to zap to scanned channel it dosen't work. Debug log is crazy and losing frequency

[8028.684][21804 rtsp.cpp            : 555][sendSetup                ]   debug: SETUP DATA :
SETUP rtsp://SERVER-IP:554/?freq=**3231.3**&bw=7&msys=dvbt&pids=none RTSP/1.0
CSeq: 1
Transport: RTP/AVP;unicast;client_port=46183-46184

Also this frequency is requested on SAT>IP server side.
0.5 Mhz dosen't change situation, it is not a notation problem.
Acording to sat ip documentation is also correct "fixed point type or integer value"
satip_specification_version_1_2_2 pdf

191.5 and requests for 191 are ok if I manualy try do get that from server, so that is not the issue here. Server reciving wrong frequency request and gives no signal.

In chanel info is even worse.
screenshot_20240115223909

Signal Finder always requests proper frequency

PLAY rtsp://SERVER-IP:554/stream=1?freq=177.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=184.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=191.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=198.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=205.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=212.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=219.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=226.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP554/stream=1?freq=219.5&bw=7&msys=dvbt RTSP/1.0
PLAY rtsp://SERVER-IP:554/stream=1?freq=226.5&bw=7&msys=dvbt RTSP/1.0

Chanel zapping always requests wrong frequency. I have only one DVB-T MUX in VHF to test.

Frequency from UHF band are requested correcly,both by signal finder and channel zaping. But there is also another problem with that descripbed in sepreret ticket.

#Test results form openatv 7.3, binary from feed and also custom compiled.

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