Utilities for serializing/deserializing videos w/ pyav and numpy.
- Have a helpful API for working with videos
- Liberate myself from relying on
torchortensorflowto do the above - Serialize/deserialize videos without writing directly to file (helpful for sending/recieving videos over APIs)
This is more or less a torch-less version of EncodedVideo from pytorchvideo.
pip install encoded-video
import numpy as np
from encoded_video import bytes_to_video, read_video, video_to_bytes
vid = read_video('archery.mp4')
video_arr = vid['video'] # (T, H, W, C)
audio_arr = vid['audio'] # (S,)
out_bytes = video_to_bytes(
video_arr,
fps=30,
audio_array=np.expand_dims(audio_arr, 0),
audio_fps=vid['audio_fps'],
audio_codec='aac'
)
restored_video = bytes_to_video(out_bytes)
