Programmable Data Repositories

We present some of the recent development at the depositar, a research data repository built on top of CKAN.

資料與資源

資料類型	辦公軟體文件影音資料
語言	英文 (eng)
備註	The poster, slides and video were presented at Open Repository 2022 on June 7.

產製者	Cheng-Jen Lee, Tyng-Ruey Chuang
資料產製時間	2022-05
資料處理歷程	The abstract was prepared as markdown text file and then exported as PDF file. The poster and the slides were prepared, and then exported as PDF files, by using Google Drawings and Google Slides respectively. The script/subtitles are recorded as an AIFF file then split into four files by using QuickTime Player. The audio files were volume-boosted, and then exported as AAC files by using iMovie, one AAC file for each PNG image. For each slide, the audio was synched with the PNG image to make a MP4 video by using the following ffmpeg command (here slide 1 is used as an example): `ffmpeg -loop 1 -i 01.png -i 01.m4a -c:v h264_videotoolbox -b:v 3000k -c:a copy -shortest -vf scale=1920:1080 01.mp4` The 4 MP4 files '1. mp4', '2.mp4', ..., '4.mp4' were concatenated to make a final output video file 'all.mp4': `ffmpeg -f concat -safe 0 -i files.txt -c copy all.mp4` while the file 'files.txt' includes the following lines: `file '1.mp4' file '2.mp4' file '3.mp4' file '4.mp4'` All files were prepared on macOS 12.4.
聯絡人	Cheng-Jen Lee
聯絡人的電子郵件	cjlee@iis.sinica.edu.tw