summary refs log tree commit diff
path: root/synapse/media/v1/thumbnailer.py
diff options
context:
space:
mode:
authorMark Haines <mark.haines@matrix.org>2015-01-22 16:10:07 +0000
committerMark Haines <mark.haines@matrix.org>2015-01-22 16:10:07 +0000
commit97c68c508dac6b4b3203b3bc475ffdfd185b6e03 (patch)
tree92fdec56ec4dc8836f9bf92ea4914a404702b1ef /synapse/media/v1/thumbnailer.py
parentMove client v1 api rest servlets into a "client/v1" directory (diff)
downloadsynapse-97c68c508dac6b4b3203b3bc475ffdfd185b6e03.tar.xz
Move rest APIs back under the rest directory
Diffstat (limited to 'synapse/media/v1/thumbnailer.py')
-rw-r--r--synapse/media/v1/thumbnailer.py89
1 files changed, 0 insertions, 89 deletions
diff --git a/synapse/media/v1/thumbnailer.py b/synapse/media/v1/thumbnailer.py
deleted file mode 100644
index 28404f2b7b..0000000000
--- a/synapse/media/v1/thumbnailer.py
+++ /dev/null
@@ -1,89 +0,0 @@
-# -*- coding: utf-8 -*-
-# Copyright 2014, 2015 OpenMarket Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-import PIL.Image as Image
-from io import BytesIO
-
-
-class Thumbnailer(object):
-
-    FORMATS = {
-        "image/jpeg": "JPEG",
-        "image/png": "PNG",
-    }
-
-    def __init__(self, input_path):
-        self.image = Image.open(input_path)
-        self.width, self.height = self.image.size
-
-    def aspect(self, max_width, max_height):
-        """Calculate the largest size that preserves aspect ratio which
-        fits within the given rectangle::
-
-            (w_in / h_in) = (w_out / h_out)
-            w_out = min(w_max, h_max * (w_in / h_in))
-            h_out = min(h_max, w_max * (h_in / w_in))
-
-        Args:
-            max_width: The largest possible width.
-            max_height: The larget possible height.
-        """
-
-        if max_width * self.height < max_height * self.width:
-            return (max_width, (max_width * self.height) // self.width)
-        else:
-            return ((max_height * self.width) // self.height, max_height)
-
-    def scale(self, output_path, width, height, output_type):
-        """Rescales the image to the given dimensions"""
-        scaled = self.image.resize((width, height), Image.ANTIALIAS)
-        return self.save_image(scaled, output_type, output_path)
-
-    def crop(self, output_path, width, height, output_type):
-        """Rescales and crops the image to the given dimensions preserving
-        aspect::
-            (w_in / h_in) = (w_scaled / h_scaled)
-            w_scaled = max(w_out, h_out * (w_in / h_in))
-            h_scaled = max(h_out, w_out * (h_in / w_in))
-
-        Args:
-            max_width: The largest possible width.
-            max_height: The larget possible height.
-        """
-        if width * self.height > height * self.width:
-            scaled_height = (width * self.height) // self.width
-            scaled_image = self.image.resize(
-                (width, scaled_height), Image.ANTIALIAS
-            )
-            crop_top = (scaled_height - height) // 2
-            crop_bottom = height + crop_top
-            cropped = scaled_image.crop((0, crop_top, width, crop_bottom))
-        else:
-            scaled_width = (height * self.width) // self.height
-            scaled_image = self.image.resize(
-                (scaled_width, height), Image.ANTIALIAS
-            )
-            crop_left = (scaled_width - width) // 2
-            crop_right = width + crop_left
-            cropped = scaled_image.crop((crop_left, 0, crop_right, height))
-        return self.save_image(cropped, output_type, output_path)
-
-    def save_image(self, output_image, output_type, output_path):
-        output_bytes_io = BytesIO()
-        output_image.save(output_bytes_io, self.FORMATS[output_type], quality=70)
-        output_bytes = output_bytes_io.getvalue()
-        with open(output_path, "wb") as output_file:
-            output_file.write(output_bytes)
-        return len(output_bytes)