matplotlib.animation.FileMovieWriter

class matplotlib.animation.FileMovieWriter(*args, **kwargs)

MovieWriter for writing to individual files and stitching at the end.

This must be sub-classed to be useful.

__init__(self, *args, **kwargs)

MovieWriter

Parameters:

fps : int

Framerate for movie.

codec : string or None, optional

The codec to use. If None (the default) the animation.codec rcParam is used.

bitrate : int or None, optional

The bitrate for the saved movie file, which is one way to control the output file size and quality. The default value is None, which uses the animation.bitrate rcParam. A value of -1 implies that the bitrate should be determined automatically by the underlying utility.

extra_args : list of strings or None, optional

A list of extra string arguments to be passed to the underlying movie utility. The default is None, which passes the additional arguments in the animation.extra_args rcParam.

metadata : Dict[str, str] or None

A dictionary of keys and values for metadata to include in the output file. Some keys that may be of use include: title, artist, genre, subject, copyright, srcform, comment.

Methods

__init__(self, \*args, \*\*kwargs)	MovieWriter
bin_path()	Return the binary path to the commandline tool used by a specific subclass.
cleanup(self)	Clean-up and collect the process used to write the movie file.
finish(self)	Finish any processing for writing the movie.
grab_frame(self, \*\*savefig_kwargs)	Grab the image information from the figure and save as a movie frame.
isAvailable()	Check to see if a MovieWriter subclass is actually available.
saving(self, fig, outfile, dpi, \*args, ...)	Context manager to facilitate writing the movie file.
setup(self, fig, outfile[, dpi, ...])	Perform setup for writing the movie file.

Attributes

frame_format	Format (png, jpeg, etc.) to use for saving the frames, which can be decided by the individual subclasses.
frame_size	A tuple (width, height) in pixels of a movie frame.

cleanup(self)

Clean-up and collect the process used to write the movie file.

finish(self)

Finish any processing for writing the movie.

frame_format

Format (png, jpeg, etc.) to use for saving the frames, which can be decided by the individual subclasses.

grab_frame(self, **savefig_kwargs)

Grab the image information from the figure and save as a movie frame. All keyword arguments in savefig_kwargs are passed on to the savefig command that saves the figure.

setup(self, fig, outfile, dpi=None, frame_prefix='_tmp', clear_temp=True)

Perform setup for writing the movie file.

Parameters:

fig : matplotlib.figure.Figure

The figure to grab the rendered frames from.

outfile : str

The filename of the resulting movie file.

dpi : number, optional

The dpi of the output file. This, with the figure size, controls the size in pixels of the resulting movie file. Default is fig.dpi.

frame_prefix : str, optional

The filename prefix to use for temporary files. Defaults to '_tmp'.

clear_temp : bool, optional

If the temporary files should be deleted after stitching the final result. Setting this to False can be useful for debugging. Defaults to True.