4K H265 SDR whit PGS - Test and crash whit TRUHD 7.1

Plex Players Player Betas
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Hello. I did some testing with this movie.Test SDR.txt (7.0 KB)
Test start at Dec 23, 2018 at 12:44 and finish at 12:46
Server Log:Plex Media Server Logs_2018-12-23_12-46-00.zip (4.0 MB)
AppleTv 4k Log: logging.zip (547.4 KB)

Here are the results (All in Original Quality).

Test 1
Audio: TRUEHD 7.1
Subtitle: PGS
Result: Crash. He don’t like TrueHD
Dec 22, 2018 18:26:16.595 [13680] Error — [Transcoder] [h264_nvenc @ 04ce1740] InitializeEncoder failed: invalid param (8)
Dec 22, 2018 18:26:16.617 [5676] Error — [Transcoder] Error initializing output stream 0:0 – Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Dec 22, 2018 18:26:18.703 [5676] Error — [Transcoder] Video encoding failed
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Test 2
Audio: TRUEHD 7.1
Subtitle: None
Result: Crash. He don’t like TrueHD
Dec 22, 2018 18:23:25.394 [8388] Error — [Transcoder] [h264_nvenc @ 0458d4c0] InitializeEncoder failed: invalid param (8)
Dec 22, 2018 18:23:25.417 [17964] Error — [Transcoder] Error initializing output stream 0:0 – Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Dec 22, 2018 18:23:26.610 [20224] Error — [Transcoder] Video encoding failed
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Test 3
Audio: DTS-HD MA 5.1
Subtitle: PGS
Result: Very Nice
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If you need something. I’m here for help.

THX

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Hi.

I add Logs.

Thx

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I’m noticing the same behaviour.

Do we really need to have audio such as Dolby True HD, DTS and DTS: MA transcoded into EAC3? The Apple TV, at least the Apple TV 4K is supposed to support LPCM up to 7.1 channels.

Wouldn’t it be better for Plex to just decode and pass it as LPCM? Instead of loosing both quality and having the server transcoding the audio stream into Dolby Digital Plus?

Or would that require Plex to acquire licenses from Dolby and DTS in order to decode these formats within the Plex-app instead of relying on bitstreaming making the Apple TV decode it.

Is there a way for Plex to automatically select a better suited audio track? Most BluRay rips with Dolby True HD on the main track will almost always have a secondary track as Dolby Digital or Dolby Digital Plus. If you are going to enforce transcoding into EAC3, why not make the player just automatically select the better suited audio track?

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