106 lines
3.0 KiB
Python
106 lines
3.0 KiB
Python
#!/usr/bin/env python
|
|
""" pygame.examples.camera
|
|
|
|
Basic image capturing and display using pygame.camera
|
|
|
|
Keyboard controls
|
|
-----------------
|
|
|
|
- 0, start camera 0.
|
|
- 1, start camera 1.
|
|
- 9, start camera 9.
|
|
- 10, start camera... wait a minute! There's not 10 key!
|
|
"""
|
|
import pygame as pg
|
|
import pygame.camera
|
|
|
|
|
|
class VideoCapturePlayer(object):
|
|
|
|
size = (640, 480)
|
|
|
|
def __init__(self, **argd):
|
|
self.__dict__.update(**argd)
|
|
super(VideoCapturePlayer, self).__init__(**argd)
|
|
|
|
# create a display surface. standard pygame stuff
|
|
self.display = pg.display.set_mode(self.size)
|
|
self.init_cams(0)
|
|
|
|
def init_cams(self, which_cam_idx):
|
|
|
|
# gets a list of available cameras.
|
|
self.clist = pygame.camera.list_cameras()
|
|
print(self.clist)
|
|
|
|
if not self.clist:
|
|
raise ValueError("Sorry, no cameras detected.")
|
|
|
|
try:
|
|
cam_id = self.clist[which_cam_idx]
|
|
except IndexError:
|
|
cam_id = self.clist[0]
|
|
|
|
# creates the camera of the specified size and in RGB colorspace
|
|
self.camera = pygame.camera.Camera(cam_id, self.size, "RGB")
|
|
|
|
# starts the camera
|
|
self.camera.start()
|
|
|
|
self.clock = pg.time.Clock()
|
|
|
|
# create a surface to capture to. for performance purposes, you want the
|
|
# bit depth to be the same as that of the display surface.
|
|
self.snapshot = pg.surface.Surface(self.size, 0, self.display)
|
|
|
|
def get_and_flip(self):
|
|
# if you don't want to tie the framerate to the camera, you can check and
|
|
# see if the camera has an image ready. note that while this works
|
|
# on most cameras, some will never return true.
|
|
|
|
self.snapshot = self.camera.get_image(self.display)
|
|
|
|
# if 0 and self.camera.query_image():
|
|
# # capture an image
|
|
|
|
# self.snapshot = self.camera.get_image(self.snapshot)
|
|
|
|
# if 0:
|
|
# self.snapshot = self.camera.get_image(self.snapshot)
|
|
# # self.snapshot = self.camera.get_image()
|
|
|
|
# # blit it to the display surface. simple!
|
|
# self.display.blit(self.snapshot, (0, 0))
|
|
# else:
|
|
|
|
# self.snapshot = self.camera.get_image(self.display)
|
|
# # self.display.blit(self.snapshot, (0,0))
|
|
|
|
pg.display.flip()
|
|
|
|
def main(self):
|
|
going = True
|
|
while going:
|
|
events = pg.event.get()
|
|
for e in events:
|
|
if e.type == pg.QUIT or (e.type == pg.KEYDOWN and e.key == pg.K_ESCAPE):
|
|
going = False
|
|
if e.type == pg.KEYDOWN:
|
|
if e.key in range(pg.K_0, pg.K_0 + 10):
|
|
self.init_cams(e.key - pg.K_0)
|
|
|
|
self.get_and_flip()
|
|
self.clock.tick()
|
|
pygame.display.set_caption(f"CAMERA! ({self.clock.get_fps():.2f} FPS)")
|
|
|
|
|
|
def main():
|
|
pg.init()
|
|
pygame.camera.init()
|
|
VideoCapturePlayer().main()
|
|
pg.quit()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|