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End-to-End DVB-RCS2 Simulation phase noise
There is an example on matlab End-to-End DVB-RCS2 Simulation: link.
Why is the influence of phase noise not modeled in this example?
Is this an incorrect simplification of the model or does the phase ...
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1
answer
309
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Display TVheadend stream in HTML5 video element without transcoding
I try to display raw stream from TVheadend in <video> element and cant get it to work in Firefox and Chrome. Also I get same error in https://github.com/4gray/iptvnator IPTV player when I try to ...
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1
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122
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Load at Startup .bundle that contains dvb files
I'm working on automating some workflows in AutoCAD using VBA macros. I want to create a .bundle that loads my .dvb (VBA project) files at AutoCAD startup and makes the macros available as commands. ...
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1
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96
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systemd DVB frontend device targets not created
Since I upgraded my system from Ubuntu 22.04.5 LTS to Ubuntu 24.10, with new motherboard,cpu,nvme, using both kernel 6.11.7, the systemd DVB frontend device targets are not created.
Besides this, ...
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1
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260
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DVBSubtitles/Teletext Descriptors of a stream (ts-file)
Can someone help me how to generate subtitles/teletext descriptor for according to paragraphs 6.2.41/6.2.43 (specification) , for my input ts-file?
I tried to find something suitable in mediainfo/...
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2
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546
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How can I analysis DVBS2 packets in Wireshark 3.4.6?
I import dvb-s2_bb_example.pcap (which has been published by wireshark.org) in Wireshark 3.4.6. It is not interpreted correctly. I have enabled all protocols in Analyze->Enabled Protocols
By using ...
2
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2
answers
2k
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How can I get service_name and program list by ffmpeg-python
I have a ".ts" file. It is the baseband frame of a DVBS signal which have been recorded.
It has some Programs and streams.
I use FFmpeg to reconstruct the streams. When I use FFmpeg, this ...
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1
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103
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What is the rationale for the encoding procedure described in the DVB-S2 standard for LDPC codes?
I have not found an explanation on why accumulating the given parity check addresses and then xoring the accumulated values gives the codeword of the LDPC code. The close it gets the Wikipedia ...
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1
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243
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How to find the filter coefficients for a DVBS2 shaping SRRC?
in the DVBS2 Standard the SRRC filter is defined as
How can i find the filter's time domain coefficients for implementation? The Inverse Fourier transform of this is not clear to me.
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1
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272
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What's the correct way to implement the BaseBand scrambler of DVBS2?
I'm trying to implement a transmitter based on the DVBS2 standard.
The guideline document shows a feedback shift registers for which the input does not depend on the message sent
DVBS2 base band ...
-1
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2
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696
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providing multichannel service in iptv service [closed]
I'm supposed to be working on an IPTV system, now I have to figure out how providers can broadcast more than one channel from satellite at the same time
is it managed by hardware like special ...
1
vote
1
answer
4k
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TVHeadend not using codec copy on an IPTV stream?
So I'm using the great TVHeadend, which is in my case a DVB-T or IPTV server that can record greatly some inputs. This is a great piece of software, which I recommend much.
But I'm a little bit ...
2
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0
answers
4k
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What are supported ffmpeg rtp_mpegts Muxer options? (mpegts Muxer options are ignored)
I created a UDP stream with -f mpegts and some options like -mpegts_transport_stream_id.
I received the stream with "StreamXpert - Real-time stream analyzer" that shows all options are in the output. ...
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1
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304
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How to capture stream from dvb-s card on windows?
I need to programmatically capture video directly from a dvb-s/s2 (NOT DVB-T) pci card including accessing the card and recording the video into a file. I'm hoping to turn this into a command line ...
2
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0
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3k
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muxing DVB subtitles into transport stream with ffmpeg
So i have H264 video + AAC audio muxed inside transport stream (*.ts). To achive evenly spread PCR values i added muxrate tag to my command.
ffmpeg -analyzeduration 20000000 -probesize 20M -loglevel ...