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ASS subtitle cause audio stream downgrading to AC3


cchsieh

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When I play a movie with external ASS subtitle, the audio channel will be downgraded to AC3. But If I play it with SRT subtitle, the audio channel won't  be downgraded. The server shows "Transcoding - 16.7Mbps ts h264 ac3".

 

How can I keep the audio channel as the original?

 

 

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I play the movie remotely from Android App, and choose the correct subtitle first and then play. The subtitles are Tranditional Chinese Unicode. When I play ASS subtitle, it will be transcoded to AC3, and when I play SRT subtitile, it won't. I also send Android TV's log about 2018-02-10 08:55am (UTC+08:00).

 

Thanks in advance.

server-63653849423.txt

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External ASS subs will have to be burned in and, at that point, we would need to convert audio such as TrueHD or DTS to AC3.

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I see. Thanks a lot. Any plan to support ASS at client side in the future?

 

Hopefully.

 

Internal ones should work fine now as long as nothing else requires transcoding.  It is just external ones that are problematic.  Unfortunately, that is the most problematic format for subs on this particular platform.

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Is it possible to transcode only video and keep audio as original?

 

It depends on the format.  It is not possible to pass DTS or TrueHD in the streaming container we are using.

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