matplotlib.animation.MovieWriter

class matplotlib.animation.MovieWriter(fps=5, codec=None, bitrate=None, extra_args=None, metadata=None) [source]

Base class for writing movies.

This class is set up to provide for writing movie frame data to a pipe. See examples for how to use these classes.

Attributes:	`frame_format : str` The format used in writing frame data, defaults to 'rgba' `fig : Figure` The figure to capture data from. This must be provided by the sub-classes.

Parameters:

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.

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.

classmethod bin_path() [source]: Returns the binary path to the commandline tool used by a specific subclass. This is a class method so that the tool can be looked for before making a particular MovieWriter subclass available.

cleanup() [source]: Clean-up and collect the process used to write the movie file.

grab_frame(**savefig_kwargs) [source]

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.

classmethod isAvailable() [source]: Check to see if a MovieWriter subclass is actually available.

saving(fig, outfile, dpi, *args, **kwargs)

Context manager to facilitate writing the movie file.

*args, **kw are any parameters that should be passed to setup.

setup(fig, outfile, dpi=None) [source]

Perform setup for writing the movie file.

Parameters:	`fig : matplotlib.figure.Figure` The figure object that contains the information for frames `outfile : string` The filename of the resulting movie file `dpi : int, optional` The DPI (or resolution) for the file. This controls the size in pixels of the resulting movie file. Default is fig.dpi.