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Re: [MPlayer-dev-eng] Bluray input with -demuxer lavf




On Sun, Sep 21, 2014 at 11:10:27PM +0100, Andy Furniss wrote:
> Reimar Döffinger wrote:
> >On 21 September 2014 15:57:19 GMT+01:00, Andy Furniss <adf.lists@xxxxxxxxx> wrote:
> >>wm4 wrote:
> >>>On Sun, 21 Sep 2014 10:26:56 +0100
> >>>Reimar Döffinger <Reimar.Doeffinger@xxxxxx> wrote:
> >>>
> >>>>On Thu, Sep 18, 2014 at 02:06:04PM +0100, Andy Furniss wrote:
> >>>>>Reimar Döffinger wrote:
> >>>>>>On 18 September 2014 00:40:14 CEST, Andy Furniss
> >><adf.lists@xxxxxxxxx> wrote:
> >>>>>
> >>>>>>>On all 3 of my disks (on HD) lavf now works without cache and
> >>seeking
> >>>>>>>works on 2 of them.
> >>>>>>>
> >>>>>>>One just gets EOF when seeking with lavf with or without cache,
> >>it
> >>>>>>>works
> >>>>>>>without lavf.
> >>>>>>>
> >>>>>>>There are two differences from the working - it's encrypted and
> >>it's
> >>>>>>>also made up of lots of small .m2ts for multilingual reasons I
> >>guess
> >>>>>>>whereas the other 2 the main film is just one large .m2ts.
> >>>>>>
> >>>>>>I would bet that if you dumpstream'd the title and tried to seek
> >>in ffplay you'd get the same issue.
> >>>>>
> >>>>>Yes, ffplay can't seek properly on a dumpstream.
> >>>>
> >>>>Could you try attached patch (for FFmpeg) on the bluray?
> >>>>I have not tested it at all though.
> >>>
> >>>You don't need this. Bluray works quite well in mpv (as some users
> >>>report), and there I just forbid demux_lavf to do seeks.
> >>
> >>Yea, but I guess it doesn't know a dumpstream is a br, so doesn't work
> >>on my sample.
> >
> >Neither will my patch though.
> >My patch should only fix seeking with the combination of br:// and demuxer lavf.
> 
> OK. Just to confirm - I did test -demuxer lavf br:// and it doesn't help.

That is strange.
Using my pluray I can see clearly that it uses the stream-layer
seek-by-time function with my patch.
I don't have your broken bluray so I can't debug that specifically,
but it kind of looks like it works...
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