matplotlib.animation.FFMpegWriter

class matplotlib.animation.FFMpegWriter(fps=5, codec=None, bitrate=None, extra_args=None, metadata=None)

Pipe-based ffmpeg writer.

Frames are streamed directly to ffmpeg via a pipe and written in a single pass.

Parameters:

fpsint, default: 5

Movie frame rate (per second).

codecstr or None, default: rcParams["animation.codec"] (default: 'h264')

The codec to use.

bitrateint, default: rcParams["animation.bitrate"] (default: -1)

The bitrate of the movie, in kilobits per second. Higher values means higher quality movies, but increase the file size. A value of -1 lets the underlying movie encoder select the bitrate.

extra_argslist of str or None, optional

Extra command-line arguments passed to the underlying movie encoder. The default, None, means to use rcParams["animation.[name-of-encoder]_args"] for the builtin writers.

metadataDict[str, str], default: {}

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.

__init__(self, fps=5, codec=None, bitrate=None, extra_args=None, metadata=None)

Parameters:

fpsint, default: 5

Movie frame rate (per second).

codecstr or None, default: rcParams["animation.codec"] (default: 'h264')

The codec to use.

bitrateint, default: rcParams["animation.bitrate"] (default: -1)

The bitrate of the movie, in kilobits per second. Higher values means higher quality movies, but increase the file size. A value of -1 lets the underlying movie encoder select the bitrate.

extra_argslist of str or None, optional

Extra command-line arguments passed to the underlying movie encoder. The default, None, means to use rcParams["animation.[name-of-encoder]_args"] for the builtin writers.

metadataDict[str, str], default: {}

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[, fps, codec, bitrate, ...])	Parameters:
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()	Return whether a MovieWriter subclass is actually available.
saving(self, fig, outfile, dpi, *args, **kwargs)	Context manager to facilitate writing the movie file.
setup(self, fig, outfile[, dpi])	Setup for writing the movie file.

Attributes

args_key
exec_key
frame_size	A tuple (width, height) in pixels of a movie frame.
output_args