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neumoDVB
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<blockquote data-quote="deeptho" data-source="post: 1132679" data-attributes="member: 215446"><p>Maybe we should organise a contest "how low can you go?". Here is a result with tbs 6909X:</p><p>27.5W 11690.178V 167 kS/s DVBS2 - QPSK. This mux locks reliably. I guess one factor is the DVBS2 nature</p><p>and another that it is well separated from all other muxes.</p><p>There is DVB data on this mux, but no PAT, SDT nor nit. Below you can see that this contains a </p><p>number of audio streams. One of the streams has silence, the other one has an Irish radio station: "Irish classic hits"</p><p></p><p></p><p>The way to listen to them is a bit involved, as neumodVB does not detect valid SI tables (there are none).</p><p>1. start neumodvb and make it lock</p><p>2. run dvbsnoop -adapter 2 -s ts -tsraw -b > /tmp/stream.ts</p><p>3. run mpv --aid=2 /tmp/stream.ts</p><p></p><p>Obviously, adapter number has to be changed to whatever is appropriate.</p><p></p><p>[ICODE]</p><p>===============================================================================</p><p>| TRANSPORT STREAM ANALYSIS REPORT |</p><p>|=============================================================================|</p><p>| Transport Stream Id: ............. Unknown | Services: .............. 0 |</p><p>| Bytes: ........................... 938,496 | PID's: Total: .......... 3 |</p><p>| TS packets: ........................ 4,992 | Clear: .......... 3 |</p><p>| With invalid sync: .................. 0 | Scrambled: ...... 0 |</p><p>| With transport error: ............... 0 | With PCR's: ..... 2 |</p><p>| Suspect and ignored: ................ 0 | Unreferenced: ... 2 |</p><p>|-----------------------------------------------------------------------------|</p><p>| Transport stream bitrate, based on ....... 188 bytes/pkt 204 bytes/pkt |</p><p>| User-specified: ................................... None None |</p><p>| Estimated based on PCR's: .................. 287,399 b/s 311,858 b/s |</p><p>| Selected reference bitrate: ................ 287,399 b/s 311,858 b/s |</p><p>|-----------------------------------------------------------------------------|</p><p>| Broadcast time: ................................... 26 sec (0 min 26 sec) |</p><p>|-----------------------------------------------------------------------------|</p><p>| Srv Id Service Name Access Bitrate |</p><p>| |</p><p>| Note 1: C=Clear, S=Scrambled |</p><p>| Note 2: Unless specified otherwise, bitrates are based on 188 bytes/pkt |</p><p>===============================================================================</p><p></p><p></p><p>===============================================================================</p><p>| SERVICES ANALYSIS REPORT |</p><p>|=============================================================================|</p><p>| Global PID's |</p><p>| TS packets: 92, PID's: 1 (clear: 1, scrambled: 0) |</p><p>|-----------------------------------------------------------------------------|</p><p>| PID Usage Access Bitrate |</p><p>| Total Global PID's ................................. C 5,297 b/s |</p><p>| Subt. Global PSI/SI PID's (0x00-0x1F) .............. C 0 b/s |</p><p>| 0x1FFF Stuffing ..................................... C 5,297 b/s |</p><p>|=============================================================================|</p><p>| Unreferenced PID's |</p><p>| TS packets: 4,900, PID's: 2 (clear: 2, scrambled: 0) |</p><p>|-----------------------------------------------------------------------------|</p><p>| PID Usage Access Bitrate |</p><p>| Total Unreferenced PID's ........................... C 282,102 b/s |</p><p>| 0x00C9 Unreferenced ................................. C 141,109 b/s |</p><p>| 0x012D Unreferenced ................................. C 140,993 b/s |</p><p>===============================================================================</p><p>==============================================================================</p><p>| PIDS ANALYSIS REPORT |</p><p>|=============================================================================|</p><p>| PID: 0x00C9 (201) Unreferenced |</p><p>| PES stream id: 0xC0 (Audio 0) |</p><p>|-----------------------------------------------------------------------------|</p><p>| Unreferenced PID Transport: Discontinuities: |</p><p>| Bitrate: ... 141,109 b/s Packets: ......... 2,451 Expected: ......... 0 |</p><p>| Access: .......... Clear Adapt.F.: ........ 1,320 Unexpect: ......... 0 |</p><p>| Duplicated: .......... 0 Sections: |</p><p>| PCR: ............. 1,225 Unit start: ..... 204 |</p><p>| TSrate: .... 287,399 b/s |</p><p>|=============================================================================|</p><p>| PID: 0x012D (301) Unreferenced |</p><p>| PES stream id: 0xC0 (Audio 0) |</p><p>|-----------------------------------------------------------------------------|</p><p>| Unreferenced PID Transport: Discontinuities: |</p><p>| Bitrate: ... 140,993 b/s Packets: ......... 2,449 Expected: ......... 0 |</p><p>| Access: .......... Clear Adapt.F.: ........ 1,224 Unexpect: ......... 0 |</p><p>| Duplicated: .......... 0 Sections: |</p><p>| PCR: ............. 1,224 Unit start: ..... 204 |</p><p>| TSrate: .... 287,399 b/s |</p><p>|=============================================================================|</p><p>| PID: 0x1FFF (8191) Stuffing |</p><p>|-----------------------------------------------------------------------------|</p><p>| Global PID Transport: Discontinuities: |</p><p>| Bitrate: ..... 5,297 b/s Packets: ............ 92 Expected: ......... 0 |</p><p>| Access: .......... Clear Adapt.F.: ............ 0 Unexpect: ......... 0 |</p><p>| Duplicated: .......... 0 Sections: |</p><p>| PCR: ................. 0 Unit start: ....... 0 |</p><p>===============================================================================</p><p></p><p></p><p>===============================================================================</p><p>| TABLES & SECTIONS ANALYSIS REPORT |</p><p>===============================================================================</p><p></p><p>[/ICODE]</p><p></p><p></p><p></p><p>[ATTACH=full]143723[/ATTACH]</p><p></p><p>And here is another mux nearby. It does not lock and neumoDVB does not report frequency and symbol rate, even though it probably could in</p><p>this case because the timing loop has locked: 11671.708V. Of course it may just be that there is no dvb stream on this mux.</p><p>It is clearly QPSK, but not sure if it is DVBS-1 or DVBS-2</p><p></p><p>[ATTACH=full]143724[/ATTACH]</p></blockquote><p></p>
[QUOTE="deeptho, post: 1132679, member: 215446"] Maybe we should organise a contest "how low can you go?". Here is a result with tbs 6909X: 27.5W 11690.178V 167 kS/s DVBS2 - QPSK. This mux locks reliably. I guess one factor is the DVBS2 nature and another that it is well separated from all other muxes. There is DVB data on this mux, but no PAT, SDT nor nit. Below you can see that this contains a number of audio streams. One of the streams has silence, the other one has an Irish radio station: "Irish classic hits" The way to listen to them is a bit involved, as neumodVB does not detect valid SI tables (there are none). 1. start neumodvb and make it lock 2. run dvbsnoop -adapter 2 -s ts -tsraw -b > /tmp/stream.ts 3. run mpv --aid=2 /tmp/stream.ts Obviously, adapter number has to be changed to whatever is appropriate. [ICODE] =============================================================================== | TRANSPORT STREAM ANALYSIS REPORT | |=============================================================================| | Transport Stream Id: ............. Unknown | Services: .............. 0 | | Bytes: ........................... 938,496 | PID's: Total: .......... 3 | | TS packets: ........................ 4,992 | Clear: .......... 3 | | With invalid sync: .................. 0 | Scrambled: ...... 0 | | With transport error: ............... 0 | With PCR's: ..... 2 | | Suspect and ignored: ................ 0 | Unreferenced: ... 2 | |-----------------------------------------------------------------------------| | Transport stream bitrate, based on ....... 188 bytes/pkt 204 bytes/pkt | | User-specified: ................................... None None | | Estimated based on PCR's: .................. 287,399 b/s 311,858 b/s | | Selected reference bitrate: ................ 287,399 b/s 311,858 b/s | |-----------------------------------------------------------------------------| | Broadcast time: ................................... 26 sec (0 min 26 sec) | |-----------------------------------------------------------------------------| | Srv Id Service Name Access Bitrate | | | | Note 1: C=Clear, S=Scrambled | | Note 2: Unless specified otherwise, bitrates are based on 188 bytes/pkt | =============================================================================== =============================================================================== | SERVICES ANALYSIS REPORT | |=============================================================================| | Global PID's | | TS packets: 92, PID's: 1 (clear: 1, scrambled: 0) | |-----------------------------------------------------------------------------| | PID Usage Access Bitrate | | Total Global PID's ................................. C 5,297 b/s | | Subt. Global PSI/SI PID's (0x00-0x1F) .............. C 0 b/s | | 0x1FFF Stuffing ..................................... C 5,297 b/s | |=============================================================================| | Unreferenced PID's | | TS packets: 4,900, PID's: 2 (clear: 2, scrambled: 0) | |-----------------------------------------------------------------------------| | PID Usage Access Bitrate | | Total Unreferenced PID's ........................... C 282,102 b/s | | 0x00C9 Unreferenced ................................. C 141,109 b/s | | 0x012D Unreferenced ................................. C 140,993 b/s | =============================================================================== ============================================================================== | PIDS ANALYSIS REPORT | |=============================================================================| | PID: 0x00C9 (201) Unreferenced | | PES stream id: 0xC0 (Audio 0) | |-----------------------------------------------------------------------------| | Unreferenced PID Transport: Discontinuities: | | Bitrate: ... 141,109 b/s Packets: ......... 2,451 Expected: ......... 0 | | Access: .......... Clear Adapt.F.: ........ 1,320 Unexpect: ......... 0 | | Duplicated: .......... 0 Sections: | | PCR: ............. 1,225 Unit start: ..... 204 | | TSrate: .... 287,399 b/s | |=============================================================================| | PID: 0x012D (301) Unreferenced | | PES stream id: 0xC0 (Audio 0) | |-----------------------------------------------------------------------------| | Unreferenced PID Transport: Discontinuities: | | Bitrate: ... 140,993 b/s Packets: ......... 2,449 Expected: ......... 0 | | Access: .......... Clear Adapt.F.: ........ 1,224 Unexpect: ......... 0 | | Duplicated: .......... 0 Sections: | | PCR: ............. 1,224 Unit start: ..... 204 | | TSrate: .... 287,399 b/s | |=============================================================================| | PID: 0x1FFF (8191) Stuffing | |-----------------------------------------------------------------------------| | Global PID Transport: Discontinuities: | | Bitrate: ..... 5,297 b/s Packets: ............ 92 Expected: ......... 0 | | Access: .......... Clear Adapt.F.: ............ 0 Unexpect: ......... 0 | | Duplicated: .......... 0 Sections: | | PCR: ................. 0 Unit start: ....... 0 | =============================================================================== =============================================================================== | TABLES & SECTIONS ANALYSIS REPORT | =============================================================================== [/ICODE] [ATTACH type="full"]143723[/ATTACH] And here is another mux nearby. It does not lock and neumoDVB does not report frequency and symbol rate, even though it probably could in this case because the timing loop has locked: 11671.708V. Of course it may just be that there is no dvb stream on this mux. It is clearly QPSK, but not sure if it is DVBS-1 or DVBS-2 [ATTACH type="full"]143724[/ATTACH] [/QUOTE]
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