#987 Most audio passthrough not working in v21.1.0 (Revision 9475)

[Ricardo Birwe]

I cannot get all audio to be passed through via HDMI to my AVR when using SMPlayer with MPV.

The following formats were tested and work with SMPlayer:

• Dolby Digital 5.1
• DTS 5.1

The following formats were tested and do NOT work with SMPlayer:

• Dolby Digital Plus 5.1 with Dolby ATMOS
• Dolby TrueHD 5.1
• Dolby TrueHD 7.1
• Dolby TrueHD 7.1 with Dolby ATMOS
• DTS HD Master Audio 5.1
• DTS HD Master Audio 7.1
• DTS HD Master Audio High Resolution 5.1
• DTS-X 7.1

All files, work without a problem with MPV calling the following command:

mpv --audio-device='alsa/hdmi:CARD=NVidia,DEV=3' --audio-spdif=ac3,dts,dts-hd,eac3,truehd <VIDEO_FILE>

I added the lines to the custom settings passed to MPV, but without success.

For testing purposes I used the following Dolby and DTS trailers:
https://thedigitaltheater.com/dts-trailers/
https://thedigitaltheater.com/dolby-trailers/

SMPlayer logs for each played file are attached. For one file I also attached the mpv.log.