Update

.gitignore

@@ -40,9 +40,15 @@ nosetests.xml
 .pydevproject
 
 # Temp files
-
 *~
 
 # Pipy codes
-
 .pypirc
+
+# Mac
+.DS_Store
+
+# JetBrains
+.idea
+
+tests/media

.travis.yml

@@ -0,0 +1,16 @@
+language: python
+python:
+  - "2.7"
+  - "3.3"
+  - "3.4"
+  - "3.5"
+  - "3.6"
+# command to install dependencies
+before_install:
+  - sudo apt-get -qq update
+  - sudo apt-get install -y ffmpeg
+  - mkdir media
+install:
+  - python setup.py install
+# command to run tests
+script: py.test

README.rst

@@ -1,7 +1,17 @@
 MoviePy
-========
-
-MoviePy (full documentation here_) is a Python module for video editing: cuts, concatenations, title insertions, video compositing (a.k.a. non-linear editing), video processing, and creation of custom effects. See the gallery_ for some examples of use.
+=======
+
+.. image:: https://badge.fury.io/py/moviepy.svg
+    :target: PyPI_
+    :alt: MoviePy page on the Python Package Index
+.. image:: https://badges.gitter.im/movie-py/gitter.png
+    :target: Gitter_
+    :alt: Discuss MoviePy on Gitter
+.. image:: https://travis-ci.org/Zulko/moviepy.svg?branch=master
+    :target: https://travis-ci.org/Zulko/moviepy
+    :alt: Build status on travis-ci
+
+MoviePy (full documentation_) is a Python module for video editing: cutting, concatenations, title insertions, video compositing (a.k.a. non-linear editing), video processing, and creation of custom effects. See the gallery_ for some examples of use.
 
 MoviePy can read and write all the most common audio and video formats, including GIF, and runs on Windows/Mac/Linux, with Python 2.7+ and 3. Here it is in action in an IPython notebook:
 
@@ -10,9 +20,11 @@ MoviePy can read and write all the most common audio and video formats, includin
     :align: center
 
 Example
---------
+-------
+
+In this example we open a video file, select the subclip between t=50s and t=60s, add a title at the center of the screen, and write the result to a new file:
 
-In this example we open a video file, select the subclip between t=50s and t=60s, add a title at the center of the screen, and write the result to a new file: ::
+.. code:: python
 
     from moviepy.editor import *
 
@@ -27,76 +39,91 @@ In this example we open a video file, select the subclip between t=50s and t=60s
     result.write_videofile("myHolidays_edited.webm",fps=25) # Many options...
 
 
+Installation
+------------
 
-Contribute !
--------------
+MoviePy depends on the Python modules Numpy_, imageio_, Decorator_, and tqdm_, which will be automatically installed during MoviePy's installation. The software FFMPEG should be automatically downloaded/installed (by imageio) during your first use of MoviePy (installation will take a few seconds). If you want to use a specific version of FFMPEG, follow the instructions in ``config_defaults.py``. In case of trouble, provide feedback.
 
-MoviePy is an open-source software originally written by Zulko_ and released under the MIT licence. The project is hosted on Github_ , where everyone is welcome to contribute, ask for help or simply give feedback.
+**Installation by hand:** download the sources, either from PyPI_ or, if you want the development version, from Github_, unzip everything into one folder, open a terminal and type: ::
 
-You can also discuss about the project on Reddit_ or on the mailing list moviepy@librelist.com .
+    $ (sudo) python setup.py install
 
+**Installation with pip:** if you have ``pip`` installed, just type this in a terminal: ::
 
-Maintainers
---------------
+    $ (sudo) pip install moviepy
 
-- [Zulko](https://github.com/Zulko/) - Owner
-- [mbeacom](https://github.com/mbeacom/)
+If you have neither ``setuptools`` nor ``ez_setup`` installed, the command above will fail. In this case type this before installing: ::
 
+    $ (sudo) pip install ez_setup
 
-Installation
----------------
 
-MoviePy depends on the Python modules Numpy_, imageio_, Decorator_, and tqdm_, which will be automatically installed during MoviePy's installation. The software FFMPEG should be automatically downloaded/installed (by imageio) during your first use of MoviePy (it takes a few seconds). If you want to use a specific version of FFMPEG, follow the instructions in file ``config_defaults.py``. In case of trouble, provide feedback.
+Optional but useful dependencies
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-**Installation by hand:** download the sources, either on PyPI_ or (if you want the development version) on Github_, unzip everything in one folder, open a terminal and type ::
+ImageMagick_ is not strictly required, but needed if you want to incorporate texts. It can also be used as a backend for GIFs, though you can also create GIFs with MoviePy without ImageMagick.
 
-    (sudo) python setup.py install
+Once you have installed ImageMagick, it will be automatically detected by MoviePy, **except on Windows!**. Windows users, before installing MoviePy by hand, need to edit ``moviepy/config_defaults.py`` to provide the path to the ImageMagick binary, which is called `convert`. It should look like this ::
 
-**Installation with pip:** if you have ``pip`` installed, just type this in a terminal: ::
+    IMAGEMAGICK_BINARY = "C:\\Program Files\\ImageMagick_VERSION\\convert.exe"
 
-    (sudo) pip install moviepy
+PyGame_ is needed for video and sound previews (not relevant if you intend to work with MoviePy on a server but essential for advanced video editing by hand).
 
-If you have neither ``setuptools`` nor ``ez_setup`` installed the command above will fail, is this case type this before installing: ::
+For advanced image processing, you will need one or several of the following packages:
 
-    (sudo) pip install ez_setup
+- The Python Imaging Library (PIL) or, even better, its branch Pillow_.
+- Scipy_ (for tracking, segmenting, etc.) can be used to resize video clips if PIL and OpenCV are not installed.
+- `Scikit Image`_ may be needed for some advanced image manipulation.
+- `OpenCV 2.4.6`_ or a more recent version (one that provides the package ``cv2``) may be needed for some advanced image manipulation.
 
+For instance, using the method ``clip.resize`` requires that at least one of Scipy, PIL, Pillow or OpenCV is installed.
 
-Other optional but useful dependencies
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-ImageMagick_ is not strictly required, only if you want to write texts. It can also be used as a backend for GIFs but you can do GIFs with MoviePy without ImageMagick.
+Contribute
+----------
 
-Once you have installed it, ImageMagick will be automatically detected by MoviePy, **except on Windows !**. Windows user, before installing MoviePy by hand, go into the ``moviepy/config_defaults.py`` file and provide the path to the ImageMagick binary called `convert`. It should look like this ::
+MoviePy is open-source software originally written by Zulko_ and released under the MIT licence. The project is hosted on Github_, where everyone is welcome to contribute, ask for help or simply give feedback.
+
+You can also discuss the project on Reddit_ (preferred over GitHub issues for usage/examples), Gitter_ or the mailing list moviepy@librelist.com.
 
-    IMAGEMAGICK_BINARY = "C:\\Program Files\\ImageMagick_VERSION\\convert.exe"
 
-PyGame_ is needed for video and sound previews (useless if you intend to work with MoviePy on a server but really essential for advanced video editing *by hand*).
+Maintainers
+-----------
 
-For advanced image processing you will need one or several of these packages. For instance using the method ``clip.resize`` requires that at least one of Scipy, PIL, Pillow or OpenCV are installed.
+- Zulko_ (owner)
 
-- The Python Imaging Library (PIL) or, better, its branch Pillow_ .
-- Scipy_ (for tracking, segmenting, etc.), and can be used for resizing video clips if PIL and OpenCV aren't installed on your computer.
-- `Scikit Image`_ may be needed for some advanced image manipulation.
-- `OpenCV 2.4.6`_ or more recent (which provides the package ``cv2``) may be needed for some advanced image manipulation.
+- `@Gloin1313`_
+- `@earney`_
+- Kay `@kerstin`_
+- `@mbeacom`_
 
 
+.. MoviePy links
 .. _gallery: http://zulko.github.io/moviepy/gallery.html
+.. _documentation: http://zulko.github.io/moviepy/
+.. _`download MoviePy`: https://github.com/Zulko/moviepy
+
+.. Websites, Platforms
 .. _Reddit: http://www.reddit.com/r/moviepy/
 .. _PyPI: https://pypi.python.org/pypi/moviepy
-.. _Pillow: http://pillow.readthedocs.org/en/latest/
-.. _Zulko : https://github.com/Zulko
 .. _Github: https://github.com/Zulko/moviepy
-.. _here: http://zulko.github.io/moviepy/
+.. _Gitter: https://gitter.im/movie-py/Lobby
+
+.. Software, Tools, Libraries
+.. _Pillow: http://pillow.readthedocs.org/en/latest/
 .. _Scipy: http://www.scipy.org/
-.. _`download MoviePy`: https://github.com/Zulko/moviepy
 .. _`OpenCV 2.4.6`: http://sourceforge.net/projects/opencvlibrary/files/
 .. _Pygame: http://www.pygame.org/download.shtml
 .. _Numpy: http://www.scipy.org/install.html
 .. _imageio: http://imageio.github.io/
 .. _`Scikit Image`: http://scikit-image.org/download.html
 .. _Decorator: https://pypi.python.org/pypi/decorator
 .. _tqdm: https://github.com/noamraph/tqdm
-
-
 .. _ffmpeg: http://www.ffmpeg.org/download.html
 .. _ImageMagick: http://www.imagemagick.org/script/index.php
+
+.. People
+.. _Zulko: https://github.com/Zulko
+.. _`@Gloin1313`: https://github.com/Gloin1313
+.. _`@earney`: https://github.com/earney
+.. _`@kerstin`: https://github.com/kerstin
+.. _`@mbeacom`: https://github.com/mbeacom

examples/moving_letters.py

@@ -8,7 +8,7 @@
 txtClip = TextClip('Cool effect',color='white', font="Amiri-Bold",
                    kerning = 5, fontsize=100)
 cvc = CompositeVideoClip( [txtClip.set_pos('center')],
-                        size=screensize, transparent=True)
+                        size=screensize)
 
 # THE NEXT FOUR FUNCTIONS DEFINE FOUR WAYS OF MOVING THE LETTERS
 

moviepy/Clip.py

@@ -378,6 +378,10 @@ def subclip(self, t_start=0, t_end=None):
         they exist.
         """
 
+        if t_start < 0:  #make this more python like a negative value
+                         #means to move backward from the end of the clip
+           t_start = self.duration + t_start   #remeber t_start is negative
+
         if (self.duration is not None) and (t_start>self.duration):
 
             raise ValueError("t_start (%.02f) "%t_start +

moviepy/audio/io/ffmpeg_audiowriter.py

@@ -2,11 +2,9 @@
 import numpy as np
 import subprocess as sp
 
+from moviepy.compat import PY3, DEVNULL
+
 import os
-try:
-    from subprocess import DEVNULL # py3k
-except ImportError:
-    DEVNULL = open(os.devnull, 'wb')
 
 from tqdm import tqdm
 from moviepy.config import get_setting
@@ -82,14 +80,17 @@ def __init__(self, filename, fps_input, nbytes=2,
 
     def write_frames(self,frames_array):
         try:
-            self.proc.stdin.write(frames_array.tostring())
+            if PY3:
+               self.proc.stdin.write(frames_array.tobytes())
+            else:
+               self.proc.stdin.write(frames_array.tostring())
         except IOError as err:
             ffmpeg_error = self.proc.stderr.read()
             error = (str(err)+ ("\n\nMoviePy error: FFMPEG encountered "
                      "the following error while writing file %s:"%self.filename
                      + "\n\n"+ffmpeg_error))
 
-            if "Unknown encoder" in ffmpeg_error:
+            if b"Unknown encoder" in ffmpeg_error:
 
                 error = (error+("\n\nThe audio export failed because "
                     "FFMPEG didn't find the specified codec for audio "
@@ -99,7 +100,7 @@ def write_frames(self,frames_array):
                     "   >>> to_videofile('myvid.mp4', audio_codec='libmp3lame')"
                     )%(self.codec))
 
-            elif "incorrect codec parameters ?" in ffmpeg_error:
+            elif b"incorrect codec parameters ?" in ffmpeg_error:
 
                 error = error+("\n\nThe audio export "
                   "failed, possibly because the codec specified for "
@@ -108,7 +109,7 @@ def write_frames(self,frames_array):
                   "argument in to_videofile. This would be 'libmp3lame' "
                   "for mp3, 'libvorbis' for ogg...")%(self.codec, self.ext)
 
-            elif  "encoder setup failed":
+            elif  b"encoder setup failed" in ffmpeg_error:
 
                 error = error+("\n\nThe audio export "
                   "failed, possily because the bitrate you specified "

moviepy/audio/io/readers.py

@@ -6,12 +6,8 @@
 
 from moviepy.video.io.ffmpeg_reader import ffmpeg_parse_infos
 from moviepy.config import get_setting
-
+from moviepy.compat import PY3, DEVNULL
 import os
-try:
-    from subprocess import DEVNULL  # py3k
-except ImportError:
-    DEVNULL = open(os.devnull, 'wb')
 
 
 class FFMPEG_AudioReader:
@@ -114,12 +110,14 @@ def skip_chunk(self,chunksize):
 
 
     def read_chunk(self,chunksize):
+        # chunksize is not being autoconverted from float to int
+        chunksize = int(round(chunksize))
         L = self.nchannels*chunksize*self.nbytes
         s = self.proc.stdout.read(L)
         dt = {1: 'int8',2:'int16',4:'int32'}[self.nbytes]
         result = np.fromstring(s, dtype=dt)
         result = (1.0*result / 2**(8*self.nbytes-1)).\
-                                 reshape((len(result)/self.nchannels,
+                                 reshape((int(len(result)/self.nchannels),
                                           self.nchannels))
         #self.proc.stdout.flush()
         self.pos = self.pos+chunksize
@@ -238,6 +236,3 @@ def buffer_around(self,framenumber):
 
     def __del__(self):
         self.close_proc()
-
-
-

moviepy/compat.py

@@ -0,0 +1,8 @@
+import os
+import sys
+PY3=sys.version_info.major >= 3
+
+if PY3:
+   from subprocess import DEVNULL  # py3k
+else:
+   DEVNULL = open(os.devnull, 'wb')

moviepy/config.py

@@ -1,9 +1,6 @@
 import os
 import subprocess as sp
-try:
-    from subprocess import DEVNULL  # py3k
-except ImportError:
-    DEVNULL = open(os.devnull, 'wb')
+from .compat import DEVNULL
 
 if os.name == 'nt':
     try:    
@@ -103,5 +100,3 @@ def change_settings(new_settings={}, file=None):
         print( "MoviePy : ImageMagick successfully found." )
     else:
         print( "MoviePy : can't find or access ImageMagick." )
-
-

moviepy/tools.py

@@ -8,10 +8,7 @@
 import re
 
 import os
-try:
-    from subprocess import DEVNULL  # py3k
-except ImportError:
-    DEVNULL = open(os.devnull, 'wb')
+from .compat import DEVNULL
 
 
 def sys_write_flush(s):
@@ -156,4 +153,4 @@ def find_extension(codec):
     for ext,infos in extensions_dict.items():
         if ('codec' in infos) and codec in infos['codec']:
             return ext
-    raise ValueError
+    raise ValueError

moviepy/version.py

@@ -1 +1 @@
-__version__ = "0.2.2.12"
+__version__ = "0.2.2.13"