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.
Question
ingebart
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.
"
Link to comment
Share on other sites
4 answers to this question
Recommended Posts
Archived
This topic is now archived and is closed to further replies.