Online Sources / Transcoding issue & instant radio stations
Posted: Tue Sep 01, 2020 12:38 pm
I have 200 radio stations set-up under Library/Online Sources.
There has always been a problem with the time taken for the station to start playing. Sometimes it was 30 seconds, a minute, 2 minutes and sometimes it just "clagged".
I noticed that the native radio stations on other control apps or radio station apps work instantly but Serviio does not.
I have discovered that it is the profile transcoding that is the problem.
Remove the transcoding lines below from the profile and bingo - radio stations play instantly (sub 5 seconds) like on other apps.
<Audio targetContainer="mp3" aBitrate="320" forceInheritance="true">
<Matches container="flv"/>
<Matches container="asf"/>
<Matches container="rtp"/>
<Matches container="rtsp"/>
<Matches container="mp3"/>
<Matches container="mp4"/>
<Matches container="mpegts"/>
</Audio>
There may then be an issue for AAC files, which some stations use, if the renderer does not handle them. I have one that does and another that does not natively.
(this also references another topic about AAC handling that I posted without any response awhile ago (see viewtopic.php?f=5&t=25763 ).
Also not sure if "audio" transcoding is used in online "video" use and if video is being impacted by this transcoding glitch.
I suggest the transcoding process needs to be investigated.
Radio stations now play beautifully. They are very fast, stable and play for hours.
There has always been a problem with the time taken for the station to start playing. Sometimes it was 30 seconds, a minute, 2 minutes and sometimes it just "clagged".
I noticed that the native radio stations on other control apps or radio station apps work instantly but Serviio does not.
I have discovered that it is the profile transcoding that is the problem.
Remove the transcoding lines below from the profile and bingo - radio stations play instantly (sub 5 seconds) like on other apps.
<Audio targetContainer="mp3" aBitrate="320" forceInheritance="true">
<Matches container="flv"/>
<Matches container="asf"/>
<Matches container="rtp"/>
<Matches container="rtsp"/>
<Matches container="mp3"/>
<Matches container="mp4"/>
<Matches container="mpegts"/>
</Audio>
There may then be an issue for AAC files, which some stations use, if the renderer does not handle them. I have one that does and another that does not natively.
(this also references another topic about AAC handling that I posted without any response awhile ago (see viewtopic.php?f=5&t=25763 ).
Also not sure if "audio" transcoding is used in online "video" use and if video is being impacted by this transcoding glitch.
I suggest the transcoding process needs to be investigated.
Radio stations now play beautifully. They are very fast, stable and play for hours.