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Questions tagged [dvb]

DVB - a set of digital TV standards from the Digital Video Broadcasting Project

The DVB Project is a industry consortium that develops specifications for digital television systems, which are turned into standards by international standards bodies such as ETSI or CENELEC. DVB's open technical standards cover a broad range of of digital TV technologies for the delivery of digital TV over satellite, cable, terrestrial, and IPTV, as well as other broadcast services.

The DVB consortium is composed of manufacturers, software developers, network operators, broadcasters and regulators. It's specifications are available free of charge from the DVB standards page. One of the more prominent specifications is the one that describes DVB Service Information (DVB-SI), i.e. tables, descriptors, etc. in DVB systems; it's name is ETSI EN 300 468.

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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 context is shown which contains service_name. How I can…
Mohammad Hassan Shammakhi
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ATSC Digital Broadcasting

I dont know on which tag i need to ask this question. I'm currently studying about the ATSC standards for Digital TV broadcasting. I have doubts while going through the contents. In Digital TV broadcasting, a single bandwidth will contain multiple…
Angus
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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. See my ffmpeg parameters and the StreamXpert at…
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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 verbose -i 1135084.m4v -i 1135084.m4a -c copy…
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DVB-S2: LDPC Short Format

Scope Matlab does include a function, named dvbs2ldpc, to construct a parity check matrix to be used at LDPC encoding stage in DVB-S2 standard. This standard counts with two different transmission modes (SHORT and NORMAL), depending on the size of…
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reading mpeg-ts file to parallel port at 27Mhz

I planed to read a MPEG-TS file from the SD card and write it to an 8-bit parallel output as mpeg transport with a 27 MHz clock (simple FPGA-based MPEG-TS tester for DVB purposes). But I can,t calculate speed of writing packets in out port and how…
zeta micra
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ffmpeg and dvb subtitles scaling

I try to hardcode the dvb subtitle in the video. I managed to hardcode it but it is still misplaced. The reason for this is that the subtitle is on SD resolution 720x576 while the video is 1920x1080. So when I use overlay the subtitle is is…
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Linux DVB V5 library - example code for EIT grabbing

I am just starting to use the DVB V5 library for a project. I am trying to find any example code to show it being used for EIT grabbing, if anyone knows of / has any.
nmw01223
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Parsing Event Information Table files

My dreambox compatible video recorder stores event information table ".eit" files with every recording. I'd like to work with this information to rearrange my recordings. A similar question came up in…
Wolfgang Fahl
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FFMPEG: How to chose a stream from all stream

I try to convert a UDP stream (that genrated from DVB signal) to HLS m3u8 file with this code: ffmpeg -i udp://239.1.2.1:60001 -acodec aac -strict -2 -vcodec libx264 -hls_wrap 100 -f hls /var/www/html/ts/1.m3u8 UDP stream contain 1 channel (in…
Ali
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play channels from dvb with ffmpeg

How can we play or process a tv channel with ffplay, ffmpeg from a tuner on tv card on linux. I am able to play with vlc when I tune a tuner wtih szap with command szap-s2 "channel" -a 0 -H . However, I could not achieve this with ffmpeg. I also…
mustafa.yavuz
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DVB live streaming to android without encoding

I'm using mumudvb/dvblast or dvbviewer (all are for sending DVB-T videos over IP) for live streaming the TV channels through my local network. vlc can play rtp or udp or http output and every thing is ok. Video codec: h264 Audio codec: AAC I'm…
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How to extract dvbsub teletext subtitles?

Does anyone know how to extract teletext subtitles? I have tried ffmpeg, it says Invalid frame dimensions 0x0 CCExtractor, it says "Missing ASF header. Abort telxcc, it says ! Invalid TS packet header; TS seems to be misaligned I have done a lot of…
Hoy Cheung
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Retriving DVB data tables using IPSITables

I am trying to extract the EIT table using the non-deprecated interface IPSITables from a DVB stream. I have not found documentation about how to use the getTable method, apart from the msdn documentation…
Fernando García Redondo
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dvb: is it possible to have audio and video in a single 188 byte packet?

To me this is not possible. But I can't be too sure. Can somebody confirm this? If it's possible, how? Thanks
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