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https://github.com/MAHines/Big-Screen-II
Use Airplay to share iOS video stream from camera
https://github.com/MAHines/Big-Screen-II
airplay camera digital-whiteboard ios ios-swift lectures
Last synced: 9 days ago
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Use Airplay to share iOS video stream from camera
- Host: GitHub
- URL: https://github.com/MAHines/Big-Screen-II
- Owner: MAHines
- License: mit
- Created: 2020-06-22T01:26:44.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2020-06-27T22:10:00.000Z (over 4 years ago)
- Last Synced: 2024-08-01T13:38:41.308Z (3 months ago)
- Topics: airplay, camera, digital-whiteboard, ios, ios-swift, lectures
- Language: Swift
- Homepage:
- Size: 117 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
Awesome Lists containing this project
README
# Big Screen II
Big Screen II is an iOS app that transmits, and optionally records, live
video from the camera to a second screen connected by AirPlay. The
controls are not mirrored to the second screen.
- Front or back camera
- Landscape or portrait orientation
- Records video and audio
- Supports camera zooming
- Tap to focus; Double tap to autofocus
- Adjust exposure by sliding after focus
- Triple tap suppresses Airplay warning
- Can use as a document or demo camera
- Videoconference lectures and office hours from home
- Video recording: 1280 x 720 px with HEVC (if supported) or H.264
compression
- Available on the [App
Store](https://apps.apple.com/us/app/big-screen-ii/id1498789417?ls=1)
Big Screen II is part of a digital whiteboard developed in the Hines Lab
in the Dept. of Chemistry and Chemical Biology at Cornell University.
The whiteboard is sketched below. The lecturer faces the classroom and
writes on a sheet of illuminated glass with a fluorescent pen. The
front-facing camera on the iPad behind the glass captures a video of the
lecturer and his/her drawings and writing. Because the front camera
flips the image horizontally, the lecturer's writing is not reversed.
Unlike a traditional white board, the lecturer cannot obstruct the
writing. A full description of the whiteboard is given in E. S.
Skibinski, W. J. I. DeBenedetti, A. G. Ortoll-Bloch, and M. A. Hines, "A
Blackboard for the 21st Century: An Inexpensive Light Board Projection
System for Classroom Use," *J. Chem. Educ.* **92,** 1754 (2015).
Instructions for constructing the digital whiteboard can be [downloaded
here](https://pubs.acs.org/doi/suppl/10.1021/acs.jchemed.5b00155/suppl_file/ed5b00155_si_001.pdf).
A big thanks is due to Kirby Turner of White Peak Software, Inc. who
wrote the original Big Screen and who graciously shared his source code.
Big Screen II is a *de novo* rewrite of Big Screen with added
videorecording capability. All bugs are mine.
Development of the digital whiteboard was supported by the National
Science Foundation under Award CHE-1708025.
## Developed by
Please send questions, comments, and bug reports to
© 2020 Melissa A. Hines