Remove unused/deprecated AVConv_ classes

Tranquilled · Tranquilled · commit e29e69e059cc · 2020-10-05T18:23:59.000-04:00
diff --git a/lib/matplotlib/animation.py b/lib/matplotlib/animation.py
@@ -584,17 +584,6 @@ def output_args(self):
 
         return args + ['-y', self.outfile]
 
-    @classmethod
-    def isAvailable(cls):
-        return (
-            super().isAvailable()
-            # Ubuntu 12.04 ships a broken ffmpeg binary which we shouldn't use.
-            # NOTE: when removed, remove the same method in AVConvBase.
-            and b'LibAv' not in subprocess.run(
-                [cls.bin_path()], creationflags=subprocess_creation_flags,
-                stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
-                stderr=subprocess.PIPE).stderr)
-
 
 # Combine FFMpeg options with pipe-based writing
 @writers.register('ffmpeg')
@@ -640,45 +629,6 @@ def _args(self):
                 '-vframes', str(self._frame_counter)] + self.output_args
 
 
-# Base class of avconv information.  AVConv has identical arguments to FFMpeg.
-@cbook.deprecated('3.3')
-class AVConvBase(FFMpegBase):
-    """
-    Mixin class for avconv output.
-
-    To be useful this must be multiply-inherited from with a
-    `MovieWriterBase` sub-class.
-    """
-
-    _exec_key = 'animation.avconv_path'
-    _args_key = 'animation.avconv_args'
-
-    # NOTE : should be removed when the same method is removed in FFMpegBase.
-    isAvailable = classmethod(MovieWriter.isAvailable.__func__)
-
-
-# Combine AVConv options with pipe-based writing
-@writers.register('avconv')
-class AVConvWriter(AVConvBase, FFMpegWriter):
-    """
-    Pipe-based avconv writer.
-
-    Frames are streamed directly to avconv via a pipe and written in a single
-    pass.
-    """
-
-
-# Combine AVConv options with file-based writing
-@writers.register('avconv_file')
-class AVConvFileWriter(AVConvBase, FFMpegFileWriter):
-    """
-    File-based avconv writer.
-
-    Frames are written to temporary files on disk and then stitched
-    together at the end.
-    """
-
-
 # Base class for animated GIFs with ImageMagick
 class ImageMagickBase:
     """
