[vlc-devel] [PATCH] dvdnav: add Demux submodule
thomas at gllm.fr
Tue Mar 24 00:01:32 CET 2015
On Mon, Mar 23, 2015, at 23:41, Jean-Baptiste Kempf wrote:
> On 23 Mar, Rémi Denis-Courmont wrote :
> > Le lundi 23 mars 2015, 19:48:35 Thomas Guillem a écrit :
> > > Ah yes, we can't play dvd without seek.
> > > dvdread has now an internal cache when probing IFO, therefore there is
> > > much less seeks than before. So, can we use CAN_SEEK instead ?
> > I don´t know how much it seeks. Presumably it does not seek much if at all
> > during playback, but what about menus?
> Seeks are mostly happening in decryption part, but that is cached now,
> in dvdread.
> > But in any case, you need FASTSEEK because the probe function needs to seek
> > forward and back to zero - unless you find a way to probe based on the first few
> > hundreds of bytes like other demuxers.
> That means if forced, it is not necessary.
> And yes, I think it can be probed way better, in the way you described.
In the new patch, the probe peek the first 512kB. It works with a
default config but I guess it can fails if you setup the input buffet to
be less than 512kB.
> With my kindest regards,
> Jean-Baptiste Kempf
> http://www.jbkempf.com/ - +33 672 704 734
> Sent from my Electronic Device
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