Multiple closed captions / subtitles

[oneview]

We have licenses for your IPTV product for use in Hong Kong.

An important requirement of our customer is the ability to choose been three possible closed caption sub-streams in MPEG4 stream available off air at the hospital.

We note that you have Boolean (Yes/No) flags for switching closed captions on and off but we haven’t come across an obvious API for selecting between the possible streams.

As an example, we have posted a sample captured off air in Hong Kong at: http://www.oneviewservices.com/SubTitleTest.mpg

VLC (http://www.videolan.com) reports the sub-streams for this file in the screen grab attached below which shows streams for subtitles in the Languages: Chinese, English and CHS (Simplified Chinese)

We notice that you may not have supported multiple alternative subtitles in the past:
http://www.elecard.com/forum/index.php?topic=1035.0

However, our question is: do you currently support the selection between multiple alternative subtitles in your IPTV Player product (or rather in your DirectShow Filters which we will be using directly)?

If not, can you suggest any work-around for us to resolve this issue.

thanks
David

[Natalia Psakhie]

Hello David,

Thank you very much for the detailed task description.

We are now uploading your test stream, but as far as we can see from the screen shot - you are not working with Closed captions, but subtitles which are not yet supported by the IPTV Player.

We have certain ideas on implementing this feature for you, could you please write a short email to sales(at)elecard.net.ru so we could discuss the details.

Thank you!