[libdvdnav-devel] libdvdnav-devel Digest, Vol 12, Issue 12

[Jason Gullickson]

I think that's what I'm missing Lawrence.  


Is the subpicture stream present/interleaved with the data I'm already dumping to the FIFO and it's just a matter of telling the decoder to switch streams, or is this something that happens at the libdvdnav level (like calling a libdvdnav function that changes what is being written to the FIFO)?




Sorry if I'm explaining this poorly, it's all very new to me and I'm still learning the vocabulary.







- Jason


- Jason

On Sat, Oct 18, 2014 at 5:00 AM, null
<libdvdnav-devel-request at videolan.org> wrote:

> Send libdvdnav-devel mailing list submissions to
> 	libdvdnav-devel at videolan.org
> To subscribe or unsubscribe via the World Wide Web, visit
> 	https://mailman.videolan.org/listinfo/libdvdnav-devel
> or, via email, send a message with subject or body 'help' to
> 	libdvdnav-devel-request at videolan.org
> You can reach the person managing the list at
> 	libdvdnav-devel-owner at videolan.org
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of libdvdnav-devel digest..."
> Today's Topics:
>    1. Re: Native DVD navigation menus & the DVD_NAV_PACKET event
>       (Lawrence D'Oliveiro)
> ----------------------------------------------------------------------
> Message: 1
> Date: Sat, 18 Oct 2014 13:41:14 +1300
> From: Lawrence D'Oliveiro <ldo at geek-central.gen.nz>
> To: libdvdnav-devel at videolan.org
> Subject: Re: [libdvdnav-devel] Native DVD navigation menus & the
> 	DVD_NAV_PACKET event
> Message-ID: <20141018134114.22c872e0 at theon.geek-central.gen.nz>
> Content-Type: text/plain; charset=UTF-8
> On Fri, 17 Oct 2014 08:03:30 -0500, Jason Gullickson wrote:
>> libdvdnav-based C program -> filesystem FIFO -> ffmpeg -> ffserver ->
>> WEBM
>> 
>> This works pretty well, when I open the DVD in the C program I dump
>> the blocks to the FIFO and the menu screen starts to load up
>> correctly, but when it gets to the point where I'd expect the buttons
>> to appear on the video, that doesn't happen.  I receive the
>> DVD_NAV_PACKET event and I'm able to composite the control inputs in
>> the correct positions, etc., but if I then select a button that leads
>> to another menu (say "Scene Selection") the C program responds with
>> the corresponding DVD_NAV_PACKET event for the next menu, but the
>> video stream never changes.
> Are you decoding and displaying the subpicture stream to overlay on the
> video? That?s usually what provides the highlighting of the menu
> buttons, not the underlying video stream.
> ------------------------------
> Subject: Digest Footer
> _______________________________________________
> libdvdnav-devel mailing list
> libdvdnav-devel at videolan.org
> https://mailman.videolan.org/listinfo/libdvdnav-devel
> ------------------------------
> End of libdvdnav-devel Digest, Vol 12, Issue 12
> ***********************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.videolan.org/pipermail/libdvdnav-devel/attachments/20141018/f126c9b4/attachment.html>