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Dominique_71
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Joined: 17 Aug 2005
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Location: Switzerland (Romandie)

PostPosted: Fri Sep 07, 2012 7:11 pm    Post subject: [solved]seeking or not on dvb devices Reply with quote

I try several things to setup mplayer to work with my multi-tuner dvb card. I cannot use something like "mplayer dvb://2@R1" because mplayer will look for the first tuner of the second card, and I want the second tuner of the first and only card.

At that time, it is a 3 steps setup:

1) Get some channels lists:
Code:
dvbscan /usr/share/dvb/dvb-t/ch-All -a 0 -f 1 -d 1 -o zap | tee
~/.tzap/channels_ter.conf
dvbscan /usr/share/dvb/dvb-s/Astra-19.2E -x 0 -t 1 -a 0 -o zap | tee
~/.tzap/channels_sat.conf


In 2 different terminals:
2) Tune a tuner:
Code:
tzap -a 0 -f 1 -d 1 -r "RTS Un" -c channels_ter.conf

or
Code:
szap -a 0 -r "Cubavision Internacional" -c channels_sat.conf


3) Watch the TV:
Code:
mplayer /dev/dvb/adapter0/dvr1

or
Code:
mplayer /dev/dvb/adapter0/dvr1


On the mplayer email list, someone tell me
Quote:
don't play device files as if they were plain files, or mplayer will try
to seek on them.
Better use
Code:
$ cat /dev/dvb/adapter0/dvr1|mplayer -


This command work well, but mplayer quit when I change the channel with tzap or szap. So, I prefer the first one ("mplayer /dev/dvb/adapter0/dvr*") because I can change the channels without to have to restart mplayer.

I responded on the mplayer list about this issue, but didn't get any answer. So, what is the problem if any with something like "mplayer /dev/dvb/adapter0/dvr1"? Can such a command damage my hardware?

I am very confused because on the linux-tv wiki, they use "mplayer /dev/dvb/adapter0/dvr0".

EDIT: According to a discussion I get on irc #linuxtv@freenode, "mplayer /dev/dvb/adapter0/dvr1" is safe, it will not damage the hardware, and the messages about seek stream can be ignored.
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