[Guillaume Bringard]

Yes, I’m fairly certain I’m exporting an AVC-Intra video compression ????

But maybe you’re onto something : since Da Vinci Resolve seems to rely on this “Sony MXF Development Kit” pointed out by Media Info, maybe the limitation of the mono-channeled tracks lies in there, historically inherited from the XDCAM ages…

[Guillaume Bringard]

In the meantime, I found a workaround with FFMPEG :

1/ I export from Resolve the video silent (without audio) as an .MXF OP1a AVC-Intra 100 1080i25 (every flavor I need)

2/ I export from Resolve the audio as stereo .WAV (48 Khz 24 bits)

3/ I rewrap without converting/re-compressing via FFMPEG :
ffmpeg -i VideoSilentFile.MXF -i AudioStereoWaveFile.wav -map 0:0 -map 1:a -vcodec copy -acodec copy VideoWithStereoAudio.MXF

And voilà : an .MXF file with only one stereo audio track containing two audio channels 🙂

[Guillaume Bringard]

Hello

I did check with my broadcaster, he sent me an MXF sample of a file validated on their side, it definitely has dual (stereo) channels tracks when opened in Media Info :

What I get from Resolve is two single-channeled (mono) tracks :

And yes, you’re right, it does work properly when delivering a MOV file from Resolve :

But not when delivering and MXF…