Specify aspect ratio for a live source

I need an ability to force a certain aspect ratio for an individual live stream.
Illico wrote:- for an individual live stream : Not supported
- for all online resources streams : Supported (with profile editing)
casper wrote:For all streams - can you point me to a guide?
casper wrote:My device is an LG Smart TV (2012 model), currently using LG TV profile.
<Profile id="8" name="LG TV / player" extendsProfileId="1">
<Detection>
<HttpHeaders>
<friendlyName.dlna.org>LG.*</friendlyName.dlna.org>
</HttpHeaders>
</Detection>
<MediaFormatProfiles>
<MediaFormatProfile mime-type="video/mp4" name="">AVI</MediaFormatProfile>
</MediaFormatProfiles>
<SubtitlesMimeType>text/srt</SubtitlesMimeType>
<!--
Transcoding doesn't seem to work and some files can be played natively:
http://forum.serviio.org/viewtopic.php?f=12&t=3914#p26273
<Transcoding>
<Video targetContainer="mpegts" targetACodec="mp3">
<Matches container="matroska" aCodec="ac3" />
</Video>
<Video targetContainer="mpegts" targetVCodec="mpeg2video" targetACodec="ac3" >
<Matches container="avi" vCodec="msmpeg4"/>
</Video>
</Transcoding> -->
<OnlineTranscoding>
<Video targetContainer="mpeg" targetVCodec="mpeg2video" targetACodec="ac3" aBitrate="384" DAR="16:9" >
<Matches container="*" />
</Video>
</OnlineTranscoding>
</Profile>