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Old 4th April 2016, 06:11   #1  |  Link
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Join Date: Nov 2010
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DTS Downmixed to stereo with ffmpeg/libopus

Hello, i'm trying to encode some bluray h264 remux to vp9 webm. Actually i'm using this line for encoding:
ffmpeg -i /Rambo.mkv -c:v libvpx-vp9 -b:v 1400 -threads 8 -speed 1 -c:a libopus -b:a 96 -f webm /Rambo.webm
Problem is that the original audio is "DTS Master Audio, English, 7.1 channels, 24 bits, 48kHz" and when i run this line, ffmpeg reports that will generate libopus in 5.1 and i want it in Stereo

I tried putting --downmix-stereo but it doesn't work "Unrecognized option '-downmix-stereo' appear, i need help to determine the parameter to encode DTS to Opus in Stereo.

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