[vlc-devel] How to modify video output?

Peter Tap ptrtap at yahoo.com
Mon Oct 10 07:48:44 CEST 2011

Hi Laurent,

Thank you for your help.

What would be the closest decoder module I can look at as a sample?

I am hoping I don't need to know the internals of the underlying video format (mp4, mpg2, etc.). My decoder would just become a link in the graph through which the video travels.


From: Laurent Aimar <fenrir at elivagar.org>
To: Mailing list for VLC media player developers <vlc-devel at videolan.org>
Sent: Monday, September 26, 2011 1:47 AM
Subject: Re: [vlc-devel] How to modify video output?

On Mon, Sep 26, 2011 at 11:46:51AM +0300, Juha Jeronen wrote:
> Hi,
> On 09/26/2011 09:57 AM, Peter Tap wrote:
>     Folks,
>     After implementing a stream_filter module, I have become a bit comfortable
>     with vlc development environment.
>     Now, I have a new task. At a specific time during an mp4 media is being
>     played, I need to draw a thumbnail image at a certain location over the
>     underlying video image. The image should disappear after a few seconds.
If it is a kind of subtitles track, then doing a decoder is probably what you
are looking for.

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