Rank: Newbie
Groups: Registered
Joined: 3/17/2026(UTC) Posts: 1  Location: Munich
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The SRT protocol does support setting language metadata for audio tracks, which is helpful when working with multiple audio tracks. For example, the streaming platform 3q.video does support automatically reading the language tags from the SRT signal and delivering them to the HLS output. In more technical terms: Quote:Multi-audio SRT should support setting ISO 639 language tags (-metadata:s:a:X language=...) as MPEG-TS PMT descriptors to ensure correct audio track identification in downstream playback and packaging workflows. ffmpeg example on how to set these: Quote:ffmpeg \
-re -i input.mp4 \
-map 0:v:0 \
-map 0:a:0 \
-map 0:a:1 \
-c:v copy \
-c:a aac \
-metadata:s:a:0 language=eng \
-metadata:s:a:1 language=deu \
-f mpegts \
"srt://ingest.example.com:1234?mode=caller"
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Rank: Advanced Member
Groups: Registered
Joined: 4/23/2017(UTC) Posts: 1,440  Location: Germany Thanks: 3 times
Was thanked: 192 time(s) in 172 post(s)
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The European problem which is completely ignored by the english speaking countries.
+1000
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