[FFmpeg-devel] [PATCH v4 0/4] add ARIB caption decoder using libaribcaption

[Soft Works]

> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of
> TADANO Tokumei
> Sent: Thursday, June 16, 2022 3:23 PM
> To: ffmpeg-devel at ffmpeg.org
> Subject: Re: [FFmpeg-devel] [PATCH v4 0/4] add ARIB caption decoder
> using libaribcaption
> 
> ping again!
> 
> Are there any objections to this patch set?
> If not, would someone push it to the repository?
> 
> On 2022/06/08 18:48, TADANO Tokumei wrote:
> > ping
> >
> > The patch set has been well tested by Japanese ISDB-related
> developers and works fine.
> > I think it already has good quality to merge.
> >
> > It requires external library like libaribb24, but the feature is
> disabled by default.
> > There is no impact to current code without `--enable-
> libaribcaption` option is
> > specified at configuration. The patch set provide better subtitle
> feature
> > for ISDB users than libaribb24 if enabled.

What exactly is better than with the other ARIB decoder?


> > On 2022/05/30 23:55, TADANO Tokumei wrote:
> >> This patch set add another ARIB caption decoder using
> libaribcaption
> >> external library: https://github.com/xqq/libaribcaption
> >> The library decodes subtitles of ISDB-based TV broadcasting.
> >> It is not only for Japanese ARIB STD-B24 caption, but also for
> >> Brazilian ABNT NBR 15606-1 and Philippines version of ISDB-T.
> >>
> >> Unlike libaribb24, it supports 3 types of subtitle outputs:
> >> * text: plain text
> >> * ass: ASS formatted text
> >> * bitmap: bitmap image

This will become obsolete with the introduction of subtitle 
filtering (https://github.com/ffstaging/FFmpeg/pull/18).

Just recently, Traian has joined and contributed a filter
for converting text  subtitles to graphic subtitles
(https://github.com/softworkz/FFmpeg/pull/1), which fills 
the last remaining gap for subtitle conversions.


Is this the only advantage over the existing ARIB caption decoder?

Thanks,
sw