LLHLS Multilingual Audio

[getroot]

It is now possible to receive multiple audio tracks over SRT and output multiple audio tracks over LLHLS. This feature could have been developed thanks to @nums's contribution. It is available since OvenMediaEngine 0.15.3. Thank you very much.

The easiest tool to test this feature is OBS.

Use the Advanced Audio Properties window to assign audio sources to audio tracks.

Recording settings allow multiple audio to be exported to the SRT output. You can set as below.

All preparations are now complete. Send SRT to OvenMediaEngine by clicking the Start Recording button in OBS.

If you want to set language tags for each audio track, add AudioMap settings in order of audio tracks to SRT Provider settings as shown below.

<Application>
    <Providers>
        <SRT>
            <AudioMap>
                <Item>
                    <Name>English</Name>
                    <Language>en</Language> <!-- RFC 5646 -->
                </Item>
                <Item>
                    <Name>Korean</Name>
                    <Language>ko</Language> <!-- RFC 5646 -->
                </Item>
                <Item>
                    <Name>Japanese</Name>
                    <Language>ja</Language> <!-- RFC 5646 -->
                </Item>
            </AudioMap>

In OvenPlayer, it is displayed as below.

In Safari,