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Hi, I am planning on connecting my GoPro Hero 3 Black to a ZedBoard using the additional HDMI-interface. My plan is to see if it is possible to use the video-stream to modulate a laser moving about on a white wall. And to check how precise and responsive it is possible to get it. The camera resolution I am planning on using is 4:3 (1920x1440) @ 48fps. My question is if any of you guys know anything about the HDMI data format on a GoPro (packet structure, pixel resolution etc. and transfer speed)? And also feel free to point out to me if anyone spots an iceberg ahead. =) I've already been in touch with the GoPro support system, and they've been very helpful. Here's what they said about the case: "Thanks for your interest in GoPro. Please note there is a 2-3 frame delay in the HERO3 HDMI live preview. For video playback over HDMI:All video output is 720 resolutions, except for: · 1440p, 4K, 2.7K, 4K CIN, 2.7K CIN are all played back at 1080p · 1080 video plays back at 1080 resolution Live preview (while recording or not)All video previews are at 720 resolutions, except for: · 1080 video previews at 1080 resolution · High frame rate (720p120, WVGA240, 960p100) previews at 480 resolution Note: · 30fps is played back at 29.97fps over HDMI · 60fps is played back at 59.94fps over HDMI · 24fps is played back at 23.97fps over HDMI 4K-15 (protune) is the least compressed data. Hope this helps and please feel free to reply to this email if you have any further questions. "