[MPlayer-users] zapping speed

[Zoilo Gomez]

Thank you Nico, with "-tsprobe 256000" zapping speed is now down to 2 
seconds (instead of 5).

I am trying to understand how tsprobe works.

 From the man-page I do understand that tsprobe determines the amount of 
bytes that will be searched for the necessary video and audio PIDs. So 
why does it spend so much time when I specify a high (safe) value?

I would expect it to terminate the search as soon as the PIDs have been 
found, however it seems like it keeps searching the entire specified 
data size.

Why does it seemingly keep looking for something that it must have 
already found?



Nico Sabbi wrote:
> Il Wednesday 24 October 2007 02:26:31 Zoilo Gomez ha scritto:
>   
>> I am using vlc / udp multicasting to stream a couple of DVB
>> satellite channels over my LAN, eg. "udp://224.224.2.34:1234"
>>
>> Using mplayer, it takes app. 5 seconds to change from one channel
>> to the next.  How can I speed this up? And what is taking mplayer
>> so long before it displays a picture?
>>
>> TIA,
>>
>>     
>
> possible tricks are: 
> - don't use any cache
> - use a lower -tsprobe (default is 2000000 but generally 256000 is 
> enough)
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