[FFmpeg-devel] [PATCH 4/4] lavc: add teletext decoder using libzvbi

Marton Balint cus at passwd.hu
Mon Jul 29 00:52:32 CEST 2013

On Sun, 28 Jul 2013, Reimar Döffinger wrote:

> On 27.07.2013, at 21:14, Marton Balint <cus at passwd.hu> wrote:
>> Based on a patch by Wolfram Gloger <wmglo at dent.med.uni-muenchen.de>.
>> http://lists.ffmpeg.org/pipermail/ffmpeg-devel/2012-December/136677.html
> Don't count this as serious objection, but it feels like this wrapper is about the same or more code as reimplementing a decoder...

I doubt that implementing a teletext decoder as feature complete as 
libzvbi can be done easily.

Supporting the common teletext based subtitles may be easy, but getting 
the pages right, or implementing >level 1 teletext features seems like a 
lot of work to me.

Certainly libzvbi api has it's stupidities which required some extra work 
to fix, but still, using it was the fastest way to achieve a feature 
complete decoder.


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