pygame save that Stream as video output.

python - how to save pygame camera as video output - Stack Overflow  https://stackoverflow.com/questions/28410565/how-to-save-pygame-camera-as-video-output

1down vote

Pygame's multimedia output capabilities are severily limited: It can only save uncompressed BMP images, and there is no way it can save a video format.

You have to make use of another library which to feed image frames, to render the video - or save frame by frame in a folder, numbering the file names in crescent order, and convert the result to a video with an utility later.

This project seens to feature a class to call libffmpeg to encode videos, passing frame by frame in a Python call: https://github.com/kanryu/pipeffmpeg - you will just need a way to convert the pygame Surface object to the expected "frameraw" attribute of ffmpeg.

https://github.com/kanryu/pipeffmpeg/blob/master/pipeffmpeg.py

 

 

 

i´m not at home now but my workarround is take the pygame surface and convert to numpy array and write with opencv to mp4 movie.

 

 

 

 python - How to capture pygame screen? - Stack Overflow https://stackoverflow.com/questions/6087484/how-to-capture-pygame-screen

 

 

background_image_filename = 'sushiplate.jpg'
sprite_image_filename = 'fugu.png'

import pygame
from pygame.locals import *
from sys import exit

pygame.init()

screen = pygame.display.set_mode((640, 480), 0, 32)

background = pygame.image.load(background_image_filename).convert()
sprite = pygame.image.load(sprite_image_filename).convert_alpha()

clock = pygame.time.Clock()

x, y = 100., 100.
speed_x, speed_y = 133., 170.

for event in pygame.event.get():
    if event.type == QUIT:
        exit()

screen.blit(background, (0, 0))
screen.blit(sprite, (x, y))

time_passed = clock.tick(30)
time_passed_seconds = time_passed / 1000.0

x += speed_x * time_passed_seconds
y += speed_y * time_passed_seconds

# 到达边界则把速度反向
if x > 640 - sprite.get_width():
    speed_x = -speed_x
    x = 640 - sprite.get_width()
elif x < 0:
    speed_x = -speed_x
    x = 0.

if y > 480 - sprite.get_height():
    speed_y = -speed_y
    y = 480 - sprite.get_height()
elif y < 0:
    speed_y = -speed_y
    y = 0

pygame.image.save(screen, "screenshot.png")

pygame.display.update()