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talktools.py
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talktools.py
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"""Simple tools to style a talk presented from an IPython Notebook.
Author: Fernando Perez <fernando.perez@berkeley.edu>
"""
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
# stdlib
import os
# Third party
import matplotlib.pyplot as plt
# From IPython
from IPython.display import (HTML, Image, display, YouTubeVideo, Math,
Audio, clear_output)
#-----------------------------------------------------------------------------
# Functions and classes
#-----------------------------------------------------------------------------
def prefix(url):
prefix = '' if url.startswith('http') else 'http://'
return prefix + url
def simple_link(url, name=None):
name = url if name is None else name
url = prefix(url)
return '<a href="%s">%s</a>' % (url, name)
def html_link(url, name=None):
return HTML(simple_link(url, name))
# Utility functions
def website(url, name='auto', width=740, height=400):
html = []
name = url if name == 'auto' else name
if name:
html.extend(['<div sytle="margin-bottom:10px">',
simple_link(url, name),
'</div>'] )
html.append('<iframe src="%s" width="%s" height="%s"></iframe>' %
(prefix(url), width, height))
return HTML('\n'.join(html))
def nbviewer(url, name=None, width=800, height=450):
return website('nbviewer.ipython.org/url/' + url, name, width, height)
def Video(fname):
from IPython.display import HTML, display
video = open(fname, "rb").read()
video_encoded = video.encode("base64")
video_tag = '''<video controls alt="test" src="data:video/x-m4v;base64,{0}">
</video>'''.format(video_encoded)
return HTML(data=video_tag)
def plot_audio(fname):
from scipy.io import wavfile
rate, x = wavfile.read(fname)
fig, (ax1, ax2) = plt.subplots(1, 2, figsize=(12, 4))
ax1.plot(x); ax1.set_title('Raw audio signal')
ax2.specgram(x); ax2.set_title('Spectrogram');
plt.show()
#-----------------------------------------------------------------------------
# Load and publish CSS
#-----------------------------------------------------------------------------
if __name__ == '__main__':
display(HTML(open('style.css').read()))