It is okay. Here is the submission requirements from: https://apcentral.collegeboard.org/pdf/ap-csp-student-task-directions.pdf (page 5)
"Submit a video, audio, or PDF file. Use computing tools and techniques to create one
original computational artifact (a visualization, a graphic, a video, a program, or an
audio recording). Acceptable multimedia file types include .mp3, .mp4, .wmv, .avi,
.mov, .wav, .aif, or .pdf format. PDF files must not exceed three pages. Video or
audio files must not exceed 1 minute in length and must not exceed 30MB in size."