> Can I configure live pause just to use an in memory buffer instead or
> going to disk?
Already possible just use tmpfs, simply mount a directory with tmpfs setup
with the required amount of memory you want to use for buffering and point
livepause at it.
Cheers
Adam
Thanks Adam.
I implemented a tmpfs RAM disk of 512M and pointed my livepause buffer to
this drive. It works a treat!! I no longer have any macro blocks, audio
pops or squeaks or any other issues with the livepause/live TV stream...it
appears to be rock solid!
It has only been one night so far but I am confident that streaming the
livepause data to a RAM disk has fixed my issues.
So, the question now is why does increased HDD activity have an effect on
mplayer (in my case) rendering the video? As I mentioned before the record
stream is always saved without errors. The difference between
livepause/mplayer and recording is that livepause/mplayer needs the
video/audio stream in real-time. Increasing the HDD activity may cause the
HDD data access to be more "bursty" to the point where the real time
performance is adversely affected.
I don't know anything about the SATA interface standard, but
from running hdparam it appears that the average read/write data rate is
adequate but that does not tell us you how "bursty" the accesses are. Also,
I don't know how livepause uses the HDD. It could possibly be a combination
of the SATA interface characteristics and the livepause implementation...but
I am guessing.
It is time to buy another 2G of RAM!
Thanks,
Trevor.
2009/11/24 Adam Charrett <a...@dvbstreamer.org>
> On Mon, November 23, 2009 2:54 pm, Stephen Rowles wrote:
> > On 11/23/2009 11:23 AM, Adam Charrett wrote:
> >> At a guess, your HDDs don't have enough bandwidth to record 2 streams to
> >> disk and playback 1 all at the same time. The reason for the macro
> >> blocks
> >> and audio pops is the data isn't being fed fast enough to the decoders
> >> (xine/mplayer).
> >>
> >> I see you've mention your CPU, RAM, motherboad and cards, but you've
> >> forgotten the major limiting factor your HDD!
> >>
> >> I solution, if you have 2 HDDs, is to record onto 1 and livepause onto
> >> the
> >> other and see if that makes a difference.
> >>
> >> The more expensive option is to buy a consumer grade HDD (Seagate DB35
> >> type) which have better streaming performance and larger temperature
> >> ranges.
> >>
> >> Which reminds me have you checked the temperature of your HDD? When I've
> >> experienced problems like this in the past it has been because the HDD
> >> was
> >> v hot (and gotten some bad sectors as a result).
> >>
> >> Hope this helps.
> >>
> >> Ada
> > Is it possible to do a pure memory buffer with the new livepause
> > plug-in? Now I have a machine with plenty of free ram (unlike last time
> > I tried using it) and no real requirements to buffer more than 1gig with
> > live pause (in fact for SD streaming, 500meg or less would do me just
> > fine).
> >
> > Can I configure live pause just to use an in memory buffer instead or
> > going to disk?
>
> Already possible just use tmpfs, simply mount a directory with tmpfs setup
> with the required amount of memory you want to use for buffering and point
> livepause at it.
>
> Cheers
>
> Adam
>
>
>
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus
> on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> Freevo-users mailing list
> Freevo-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/freevo-users
>
------------------------------------------------------------------------------
Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
trial. Simplify your report design, integration and deployment - and focus on
what you do best, core application coding. Discover what's new with
Crystal Reports now. http://p.sf.net/sfu/bobj-july
_______________________________________________
Freevo-users mailing list
Freevo-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/freevo-users
