AUDIO_FILE="./music.ogg"
AUDIO_DURATION=$(ffprobe -i $AUDIO_FILE -show_format -v quiet | sed -n 's/duration=//p')
AUDIO_DURATION=$(echo ${AUDIO_DURATION%.*})
最后一个行是去掉小数点，如果不用可以不去。[......]
检查音频长度，转化为秒
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用opencv检查是否为白纸
def check_blank_image(file):
img = cv2.imread(file)
if img is None:
return False
# grary
img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
# threshold to two value image
ret,thresh = cv2.threshold(img, 150, 255,cv2.THRESH_BINARY)[......]
opencv拼接图片和切分图片
1 左右拼接(height要求一样)
import cv2
from google.colab.patches import cv2_imshow
img_left = cv2.imread("./left.jpg")
img_right = cv2.imread("./right.jpg")
img = cv2.hconcat([img_left, img_right])
cv2.imwrite("merge.jpg", img)
2 垂直拼接(width要求一样）
i[......]
vscode支持C工程的多文件编译
默认只支持单文件，修改.vscode/tasks.json中的
"args": [
"-fdiagnostics-color=always",
"-g",
"${workspaceFolder}/**.c",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"[......]