On Wed, Jun 24, 2020 at 5:43 AM Moritz Barsnick <barsn...@gmx.net> wrote:
> On Tue, Jun 23, 2020 at 21:31:25 -0600, Simon Roberts wrote: > > But I have no clue how to start with this. I tried simply adding more > input > > channels to my input specifications: > [... elided my incorrect command...] > > By default, ffmpeg only maps one of each stream type (video, audio, > subs), as described here: > https://ffmpeg.org/ffmpeg.html#Automatic-stream-selection > > In your case, you need to explicitly map multiple inputs: > > $ ffmpeg -f decklink -i 'DeckLink Quad HDMI Recorder (1)' -f decklink -i > 'DeckLink Quad HDMI Recorder (4)' -map 0 -map 1 -c:v copy -c:a copy > -metadata title=DeckLinkCapture capture.mov > > (Note the "-map 0 -map 1" addition.) > > Many thanks Moritz, I'll go tinker with this, and engage with that documentation you refer to too. The overall docs can be quite overwhelming when one doesn't have a clue where to start! Cheers, Simon _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".