1 files changed, 0 insertions, 121 deletions
diff --git a/silx/gui/plot3d/utils/mng.py b/silx/gui/plot3d/utils/mng.py
deleted file mode 100644
index 8049a2f..0000000
--- a/silx/gui/plot3d/utils/mng.py
+++ /dev/null
@@ -1,121 +0,0 @@
-# coding: utf-8
-# /*##########################################################################
-#
-# Copyright (c) 2016-2020 European Synchrotron Radiation Facility
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-#
-# ###########################################################################*/
-"""This module provides basic writing Mulitple-image Network Graphics files.
-
-It only supports RGB888 images of the same shape stored as
-MNG-VLC (very low complexity) format.
-"""
-
-from __future__ import absolute_import
-
-__authors__ = ["T. Vincent"]
-__license__ = "MIT"
-__date__ = "15/12/2016"
-
-
-import logging
-import struct
-import zlib
-
-import numpy
-
-_logger = logging.getLogger(__name__)
-
-
-def _png_chunk(name, data):
-    """Return a PNG chunk
-
-    :param str name: Chunk type
-    :param byte data: Chunk payload
-    """
-    length = struct.pack('>I', len(data))
-    name = [char.encode('ascii') for char in name]
-    chunk = struct.pack('cccc', *name) + data
-    crc = struct.pack('>I', zlib.crc32(chunk) & 0xffffffff)
-    return length + chunk + crc
-
-
-def convert(images, nb_images=0, fps=25):
-    """Convert RGB images to MNG-VLC format.
-
-    See http://www.libpng.org/pub/mng/spec/
-    See http://www.libpng.org/pub/png/book/
-    See http://www.libpng.org/pub/png/spec/1.2/
-
-    :param images: iterator of RGB888 images
-    :type images: iterator of numpy.ndarray of dimension 3
-    :param int nb_images: The number of images indicated in the MNG header
-    :param int fps: The frame rate indicated in the MNG header
-    :return: An iterator of MNG chunks as bytes
-    """
-    first_image = True
-
-    for image in images:
-        if first_image:
-            first_image = False
-
-            height, width = image.shape[:2]
-
-            # MNG signature
-            yield b'\x8aMNG\r\n\x1a\n'
-
-            # MHDR chunk: File header
-            yield _png_chunk('MHDR', struct.pack(
-                ">IIIIIII",
-                width,
-                height,
-                fps,  # ticks
-                nb_images + 1,  # layer count
-                nb_images,  # frame count
-                nb_images,  # play time
-                1))  # profile: MNG-VLC no alpha: only least significant bit 1
-
-        assert image.shape == (height, width, 3)
-        assert image.dtype == numpy.dtype('uint8')
-
-        # IHDR chunk: Image header
-        depth = 8  # 8 bit per channel
-        color_type = 2  # 'truecolor' = RGB
-        interlace = 0  # No
-        yield _png_chunk('IHDR', struct.pack(">IIBBBBB",
-                                             width,
-                                             height,
-                                             depth,
-                                             color_type,
-                                             0, 0, interlace))
-
-        # Add filter 'None' before each scanline
-        prepared_data = b'\x00' + b'\x00'.join(
-            line.tobytes() for line in image)  # TODO optimize that
-        compressed_data = zlib.compress(prepared_data, 8)
-
-        # IDAT chunk: Payload
-        yield _png_chunk('IDAT', compressed_data)
-
-        # IEND chunk: Image footer
-        yield _png_chunk('IEND', b'')
-
-    # MEND chunk: footer
-    yield _png_chunk('MEND', b'')