我正在尝试使用openCV将视频导出为.mp4。我尝试了几种编解码器,但现在我没有成功。
这是一个从帧构建视频的函数:
def create_movie(self, out_directory, fps, total_frames):
img1 = cv2.imread("temp/scr0.png")
height, width, layers = img1.shape
codec = cv2.cv.CV_FOURCC('X','V','I','D')
video = cv2.VideoWriter(out_directory, codec, fps, (width, height))
for i in range(total_frames):
img_name = "temp/scr" + str(i) + ".png"
img = cv2.imread(img_name)
video.write(img)
video.release()
cv2.destroyAllWindows()
我通常会使用不同的编解码器获取下一条错误消息:
Tag XVID/0x44495658 incompatible with output codec id '13'
可以这样做吗?
答案 0 :(得分:1)
有一个非直接的解决方案。您导出为.avi,然后使用调用terminal命令的python&call。转换为.mp4。
from subprocess import call
dir = out_directory.strip(".avi")
command = "avconv -i %s.avi -c:v libx264 -c:a copy %s.mp4" % (dir, dir)
call(command.split())
答案 1 :(得分:0)
回答这个问题可能有点晚了,但是如果你想用OpenCV写一个.MP4文件试试这个:
import cv2
#your previous code here
fourcc = cv2.VideoWriter_fourcc(*'a\0\0\0')
out = cv2.VideoWriter('out.mp4', fourcc, fps, res)
#the character '\0' is the Null-Terminator or simply 0x00 in the ASCII-Table
#tag: *'a\0\0\0' corresponds to 0x00000061
#your following code here