Janos Barta <[email protected]> added the comment:

Hello,

thanks for your answer, but I do not agree with you.
I think it would be a very important feature.

If you are a broadcaster, then you may have a couple of channels.  One of these
channels is SD, others HD, and the rest are mixed resolutions. The mixed means,
sometimes the channel provides SD, other times HD resolution. In the last case
the PAR/DAR information is in a different elementary stream (if you have 
mpeg2ts). 
If you receive  it with a standard SetTopBox/mplayer/vlc, these devices can
display the stream with the correct aspect ratio, because they can read the
aspect information from the ES.

But if you want to display this stream with a special device, which does not
read the  VBI WSS ES, or you would like to transcode it (for example: you want
to make an iPhone stream), then you (the ffmpeg) need to handle the changes of
the resolution (eg. using the pillarbox, letterbox format).

We discussed about that on the doom forum, and I got an answer:
the libx264 does it, but there's no code that connects that support to
information provided by FFmpeg decoders.


What can I do now? Should I modify the status of the report (to feature
request), or should I close it?

Thanks,
Jani

________________________________________________
FFmpeg issue tracker <[email protected]>
<https://roundup.ffmpeg.org/issue2255>
________________________________________________

Reply via email to