72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
# -*- coding: utf-8 -*-
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# vi:si:et:sw=4:sts=4:ts=4
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# GPL 2010
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from __future__ import division
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import re
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import os
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from os.path import abspath, join, dirname, exists
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import shutil
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import time
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import warnings
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import subprocess
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import oxlib
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import Image
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import simplejson as json
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img_extension='jpg'
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def run_command(cmd, timeout=10):
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p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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while timeout > 0:
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time.sleep(0.2)
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timeout -= 0.2
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if p.poll() != None:
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return p.returncode
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if p.poll() == None:
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os.kill(p.pid, 9)
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killedpid, stat = os.waitpid(p.pid, os.WNOHANG)
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return p.returncode
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def frame(videoFile, position, baseFolder, width=128, redo=False):
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'''
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params:
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videoFile
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position as float in seconds
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baseFolder to write frames to
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width of frame
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redo boolean to extract file even if it exists
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'''
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#not using input file, to slow to extract frame right now
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base_size = 320
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frame = os.path.join(baseFolder, "%f.%s.%s" % (position, base_size, img_extension))
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if exists(videoFile):
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if redo or not exists(frame):
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if not exists(baseFolder):
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os.makedirs(baseFolder)
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cmd = ['oggThumb', '-t', str(position), '-n', frame, '-s', '%dx0'%base_size, videoFile]
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run_command(cmd)
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if width != base_size:
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frame_base = frame
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frame = os.path.join(baseFolder, "%f.%s.%s" % (position, width, img_extension))
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if not exists(frame):
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resize_image(frame_base, frame, width)
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return frame
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def resize_image(image_source, image_output, width):
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if exists(image_source):
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source = Image.open(image_source)
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source_width = source.size[0]
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source_height = source.size[1]
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height = int(width / (float(source_width) / source_height))
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height = height - height % 2
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if width < source_width:
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resize_method = Image.ANTIALIAS
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else:
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resize_method = Image.BICUBIC
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output = source.resize((width, height), resize_method)
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output.save(image_output)
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