[FFmpeg-devel] [PATCH 3/3] avcodec/libzvbi-teletextdec: formatted ass output

Carl Eugen Hoyos ceffmpeg at gmail.com
Thu May 3 01:08:36 EEST 2018

2018-05-02 23:50 GMT+02:00, Marton Balint <cus at passwd.hu>:
> On Wed, 2 May 2018, Carl Eugen Hoyos wrote:
>> 2018-05-02 22:48 GMT+02:00, Marton Balint <cus at passwd.hu>:
>>> Inspired by the VideoLAN text decoder and its port to
>>> FFmpeg made by Aman Gupta.
>> While this may be great, I would still like to see the light-weight
>> decoder that does not depend on an external library in FFmpeg.
> The light weight decoder is light weight because it does not even
> support level 1.5 teletext (proper international characters).

Adding additional features after the initial commits seemed to be a
useful strategy so far.

>> Does this patch implement auto-detecting the subtitle page?
> No, I see little benefit of it, because if there are multiple subtitle
> pages, then they will get mixed up. It is less error prone if the user
> specifies the page.

In my experience, it is painful.

> If somebody thinks it is useful, it can be added relatively easily.

Please do.

>> (Did you ever test ffplay with libzvbi on a transport stream
>> with teletext but no other subtitles?)
> Sure.


Carl Eugen

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