User:Manetta/prototyping/videogrep-peter-sunde

Videogrep

the following scripts are from: http://zulko.github.io/blog/2014/06/21/some-more-videogreping-with-python/

Peter Sunde, summary

Making a short summary of the keynote, by using the automatic generated srt file from youtube, by using:

youtube-dl --write-auto-sub --srt-lang en [URL]

and adding a little 'letter-code' into it (here: xyz), for the sentences that should be included.

14 

00:00:48,329 --> 00:00:51,709 

xqz a critical mass that are upset with the 

current state of the internet 

import re # module for regular expressions

def convert_time(timestring):
    """ Converts a string into seconds """
    nums = map(float, re.findall(r'\d+', timestring))
    return 3600*nums[0] + 60*nums[1] + nums[2] + nums[3]/1000

with open("transmediale-annotation.srt") as f:
    lines = f.readlines()

times_texts = []
current_times , current_text = None, ""
for line in lines:
    times = re.findall("[0-9]*:[0-9]*:[0-9]*,[0-9]*", line)
    if times != []:
        current_times = map(convert_time, times)
    elif line == '\n':
        times_texts.append((current_times, current_text))
        current_times, current_text = None, ""
    elif current_times is not None:
        current_text = current_text + line.replace("\n"," ")

print (times_texts)

from collections import Counter
whole_text = " ".join([text for (time, text) in times_texts])
all_words = re.findall("\w+", whole_text)
counter = Counter([w.lower() for w in all_words if len(w)>5])
print (counter.most_common(10))

cuts = [times for (times,text) in times_texts
        if (re.findall("xqz",text) != [])]

from moviepy.editor import VideoFileClip, concatenate

video = VideoFileClip("transmediale-opening-peter-sunde.mp4")

def assemble_cuts(cuts, outputfile):
    """ Concatenate cuts and generate a video file. """
    final = concatenate([video.subclip(start, end)
                         for (start,end) in cuts])
    final.to_videofile(outputfile)

assemble_cuts(cuts, "transmediale-annotation-02.1.mp4")