[HowTo] Catchup IPTV a.k.a +1 hour TV (in work) ?

Dimitar Maznekov

I'm trying to make catchup for IPTV to have +1, +2 etc hours back timeshift for channels which are not recorded by provider.

I've made that setups

1.Mux Schedule for two channels as follow:

https://i.imgur.com/IlT0aAB.png

2.Setup Timeshift:

https://i.imgur.com/jQkgvCO.png

There are two streams, but not see any files recorded in /home/hts/timeshift/

And if I'll make that timeshift, how to setup another Mux to start it from -1h ChannelID and watch it one hour ago ?

WORKAROUND

Script file

/home/lib/catch-up/timeshift_hls.sh

#!/bin/bash /usr/bin/ffmpeg -reconnect 1 -reconnect_at_eof 1 -reconnect_streamed 1 -reconnect_delay_max 2 -y -nostdin \ -hide_banner -loglevel fatal \ -i http://127.0.0.1:9981/stream/channelnumber/$1 \ -vcodec copy -acodec copy -scodec copy -g 60 \ -fflags +genpts -user_agent HLS_delayer -metadata service_provider="TimeShift" \ -f hls -hls_flags delete_segments -hls_time 10 -hls_list_size 360 -hls_wrap 361 \ -hls_segment_filename /timeshift/$1_%03d.ts /timeshift/$1_hls.m3u8


chmod +x /home/lib/catch-up/timeshift_hls.sh

Manual run


./timeshift_hls.sh [channel number]

Service file

/etc/systemd/system/timeshift_Nova.service


[Unit]
Description=Timeshift Nova TV
After=tvheadend.service
PartOf=tvheadend.service
Restart=always

[Service]
ExecStartPre=/bin/mkdir -p /timeshift/
ExecStart=/home/lib/catch-up/timeshift_hls.sh 103 &
ExecStop=/bin/rm -rf /timeshift/

[Install]
WantedBy=default.target

$ sudo systemctl daemon-reload $ sudo systemctl enable timeshift_Nova # to enable startup exec $ sudo systemctl start timeshift_Nova

MUX in TVH

pipe:///usr/bin/ffmpeg -live_start_index -99999 -i /timeshift/hls_103_.m3u8 -c copy -f mpegts pipe:1

And choose option "Use A/V library" to "Dont use"

Link to fork at github

https://github.com/Saentist/HLS-TV-channel-delay

Saen Acro

Dear Mitko,
In near feature, when HLS is adopted in project, all this will work as you expect :(
For now start to play channel, set on pause, go to WC, take drink and continue to watch, nothing more.

Dimitar Maznekov

Dear Saen that's mean "On-demand" doesn't work actually ?
Is it than in roadmap feature as Catchup channels ...

deganza 11

Hi Dimitri

Did you find a solution for your catch up problem.

I would also be interested in such a solution.

Dimitar Maznekov

Nope, I thought there isn't way to make it. Keep wait to adopt new features in development tree...

deganza 11

Do you know if there is such a feature in development?

Saen Acro

It can be done with FFMPEG delay can be set etc.

ex
TVH ch1 > ffmpeg > HLS segmenting > storage

Storage > ffmpeg tsstream > TVH ch1 +1h

delay control is harder part, second instance of ffmpeg need to be started later

maby something as this project

https://github.com/voc/hls-relive

EPG is other problem in this case

deganza 11

Thanks for the hint but could you give me a concrete example?

Saen Acro


ffmpeg -i "http://127.0.0.1:9981/stream" -acodec copy -vcodec copy -f segment -segment_time 1 -segment_list_flags live -segment_list_size 60 -segment_wrap 0 -segment_list /storage/hls/catchup-1h/playlist.m3u8  -segment_format mpegts segment_%05d.ts

tuning on parameters is needed
6 segments of 10 min or
12 segments of 5 min or

60 segments of 1 min

input in tvh as iptv source

then
https://forum.videohelp.com/threads/371484-Optimizing-m3u8-streaming-with-ffmpeg

deganza 11

Thank you again!

At the moment I've the following IPTV source:

file:///usr/local/tvheadend/var/tv_sender_tvh.m3u

Now where I've to put this playlist link? In this part:

-segment_list /storage/hls/catchup-1h/playlist.m3u8

or at the beginning after the ffmpeg command?

And can I overvrite the actuel iptv source or do I've to set up a new IPTV source?

Sorry for the lot of questions. I'm quite new with TVH.

Saen Acro

This is a location where ffmpeg will create and store.m3u8 index and .ts chunks
normally this is somewhere in http served folders

/if you dont want to use apache tons of settings etc use "THTTPD" or some of other acme http servers ;) /

finally you can read it by

http://localhost.or.ip:port/path/playlist.m3u8

p.s.
ffmpeg clean older files out of m3u8 index file
to be more easy to be understand replace in upper command naming of chunks to


ch_name_stream_%Y%m%d%H%M%S.ts

with will set date in format

ch_name_stream_20181228122016.ts

read this
https://ffmpeg.org/ffmpeg-formats.html#hls-2 http://hlsbook.net/segmenting-video-with-ffmpeg/

deganza 11

thank you again!
As I'm a completely newby, do I've to write a script for this?
Where do I've to save the script?
Are there some good tutorials or introduction books?

Saen Acro

start can be done by scheduled task, where to put commands.

Keep in mind that if by some reason process die it will not start automatically,
also will start recording on clean.

Dimitar Maznekov

That's could work, but it's pritty "outside" of the tvhbox. Same way could be setup VLC to save stream and to be played after. But not as MUX Channel+1, Channel2+1 or Channel+2 etc.

For me that isn't TVH style resolution.

Edit: BTW it's posible to setup M3Us like channel muxes as:


pipe:///usr/bin/ffmpeg -i <M3U8 URL HERE> -c copy -f mpegts pipe:1

Must give it a try with local created M3U8.

Thanks for the idea.

Saen Acro

There is no other FREE solution for now.

https://github.com/mediadata/hbbts same solution via Cesbo ASTRA

deganza 11

I've tried to implement the following code

ffmpeg -i "http://127.0.0.1:9981/stream" -acodec copy -vcodec copy -f segment -segment_time 1 -segment_list_flags live -segment_list_size 60 -segment_wrap 0 -segment_list /storage/hls/catchup-1h/playlist.m3u8 -segment_format mpegts segment_%05d.ts

I've tried different storage paths but I get always permission errors:

2019-01-03 16:18:10.765 spawn: [segment

 0x112f720] Opening 'segment_00000.ts' for writing
2019-01-03 16:18:10.765 spawn: [segment

0x112f720] Failed to open segment 'segment_00000.ts'

2019-01-03 16:18:10.765 spawn: Could not write header for output file #0 (incorrect codec parameters ?): Permission denied

But what about redording a timer for every channel? Would it be possible to combine the recorded channel in the same epg-guide of the live-channel? Or maybe just to combine the redorded channel with the epg guide?

In switzerland every tv-provider has catch up tv of the last 7 days. They call "catch up" as "replay tv".
And I'm wondering how they do it.

Saen Acro

Is location "/storage/hls/catchup-1h/" exist,
and is it have permission to be writable?

deganza 11

I tried different locations.

for example the same location where are also my TVH recordings:

/volume1/TVH/

But I got always permission denied.

Saen Acro

create folder for example in/tmp/hls


# mkdir -p -m 0777 / /tmp/hls

and try

deganza 11

same issue. I thik that it has to do with the codec parameters.

2019-01-03 18:38:51.329 spawn: [segment

 0x1488d40] Opening 'segment_00000.ts' for writing
2019-01-03 18:38:51.329 spawn: [segment

0x1488d40] Failed to open segment 'segment_00000.ts'
2019-01-03 18:38:51.329 spawn: Could not write header for output file #0 (incorrect codec parameters ?): Permission denied
2019-01-03 18:38:51.329 spawn: Stream mapping:
2019-01-03 18:38:51.329 spawn: Stream #0:0 -> #0:0 (copy)
2019-01-03 18:38:51.329 spawn: Stream #0:1 -> #0:1 (copy)
2019-01-03 18:38:51.330 spawn: Last message repeated 1 times

2019-01-03 18:38:51.333 iptv: stdin pipe unexpectedly closed: No data

But what about redording a timer for every channel? Would it be possible to combine the recorded channel in the same epg-guide of the live-channel?
Or maybe just to combine the redorded channel with the epg guide?