| import numpy as np |
| import argparse |
| from pathlib import Path |
| import cv2 |
| import click |
| import tqdm |
|
|
|
|
| @click.command() |
| @click.option("--infile", required=True, help="input file") |
| @click.option( |
| "--outfile", |
| default=None, |
| help="Output file. If not given will be saved in the same directory as the input file.", |
| ) |
| def split_stereo_video(infile, outfile): |
| """ |
| Script to split stereo video into left/right videos. |
| """ |
|
|
| infile = Path(infile) |
|
|
| if outfile is not None: |
| outfile = Path(outfile) |
| else: |
| outfile = infile.parent |
| outfile.mkdir(exist_ok=True) |
|
|
| if not infile.exists(): |
| print("input file not found") |
| exit(0) |
|
|
| cap = cv2.VideoCapture(str(infile)) |
| total_frames = int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) |
|
|
| if not cap.isOpened(): |
| print("Error opening video file") |
| exit() |
|
|
| enc = cv2.VideoWriter_fourcc(*"XVID") |
| vid_format = ".avi" |
| left_out_path = outfile / (infile.with_suffix("").name + "_left" + vid_format) |
| right_out_path = outfile / (infile.with_suffix("").name + "_right" + vid_format) |
| print(f"writing to {left_out_path}") |
|
|
| left_out = None |
| right_out = None |
| index = 0 |
|
|
| with tqdm.tqdm(total=total_frames) as pbar: |
| while cap.isOpened(): |
| ret, frame = cap.read() |
| if index == 0: |
| frame_width = frame.shape[1] // 2 |
| frame_height = frame.shape[0] |
| left_out = cv2.VideoWriter(str(left_out_path), enc, 25, (frame_width, frame_height)) |
| right_out = cv2.VideoWriter( |
| str(right_out_path), enc, 25, (frame_width, frame_height) |
| ) |
| if ret: |
| left = frame[:, :frame_width, :] |
| right = frame[:, frame_width:, :] |
| left_out.write(left) |
| right_out.write(right) |
| else: |
| break |
| index += 1 |
| pbar.update(1) |
|
|
| cap.release() |
| left_out.release() |
| right_out.release() |
| cv2.destroyAllWindows() |
|
|
| print("finish processing videos") |
|
|
|
|
| if __name__ == "__main__": |
| split_stereo_video() |
|
|
