On Tue, Jul 14, 2020 at 10:41 AM Simon Roberts <[email protected]> wrote: > > Well, I found out more. If I connect the camera to the input through the > cabling, but remove the splitter, it works as is, with the command I > originally used i.e. autodetecting the Hp59 signal. If I include the > splitter, the decklink mediaexpress still works, and indicates 59.94 > progressive, but ffmpeg doesn't see it. > > Could the splitter be changing the pixel format? I'll read about those and > see if I can move forward that way.
So a splitter typically won't change the pixel format, but depending on what the splitter's EDID announces to the sender, could result in the sender changing what it sends. So for example, the camera may send RGB when directly connected to the Decklink card because the Decklink card indicates it supports both YUV and RGB. But then put the splitter in the middle, and the splitter indicates that it only supports YUV, and thus the net effect is the camera sending YUV instead (which then gets forwarded to the decklink card). Note, the above scenario is just an example - I don't know what your specific splitter actually announces in its EDID, nor what your camera supports sending. Devin -- Devin Heitmueller, Senior Software Engineer LTN Global Communications o: +1 (301) 363-1001 w: https://ltnglobal.com e: [email protected] _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
