oxtimeline/bin/oxposterframe

59 lines
1.8 KiB
Python
Executable file

#!/usr/bin/python
# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
# GPL 2008
import os
import sys
from optparse import OptionParser
import pygst
pygst.require("0.10")
import gst
import Image
root = os.path.join(os.path.abspath(os.path.dirname(__file__)), '..')
if os.path.exists(os.path.join(root, 'oxgst')):
sys.path.insert(0, root)
from oxgst import Video
if __name__ == '__main__':
width = None
height = None
size = None
parser = OptionParser()
parser.add_option('-x', '--size', dest='size', help='scale image to size')
parser.add_option('-p', '--pos', dest='pos', help='frame position in seconds, float')
parser.add_option('-i', '--input', dest='input', help='video input')
parser.add_option('-o', '--output', dest='output', help='path to save frame to, jpg, png supported')
(opts, args) = parser.parse_args()
if None in (opts.input, opts.output, opts.pos):
parser.print_help()
sys.exit()
video = Video(opts.input)
timestamp = int(float(opts.pos) * gst.SECOND)
frame = video.frame(timestamp)
if frame:
width = frame.size[0]
height = frame.size[1]
if opts.size:
if width > height:
width = int(int(opts.size) * (float(width) / height))
height = int(opts.size)
width = width - width % 2
ox = abs(height - width) / 2
oy = 0
else:
height = int(int(opts.size) * (float(height) / width))
width = int(opts.size)
height = height - height % 2
ox = 0
oy = abs(height - width) / 2
frame = frame.resize((width, height), Image.ANTIALIAS)
frame = frame.crop((ox, oy, int(opts.size) + ox, oy + int(opts.size)))
frame.save(opts.output)