[feature] support processing of (many) more media types (#3090)

* initial work replacing our media decoding / encoding pipeline with ffprobe + ffmpeg

* specify the video codec to use when generating static image from emoji

* update go-storage library (fixes incompatibility after updating go-iotools)

* maintain image aspect ratio when generating a thumbnail for it

* update readme to show go-ffmpreg

* fix a bunch of media tests, move filesize checking to callers of media manager for more flexibility

* remove extra debug from error message

* fix up incorrect function signatures

* update PutFile to just use regular file copy, as changes are file is on separate partition

* fix remaining tests, remove some unneeded tests now we're working with ffmpeg/ffprobe

* update more tests, add more code comments

* add utilities to generate processed emoji / media outputs

* fix remaining tests

* add test for opus media file, add license header to utility cmds

* limit the number of concurrently available ffmpeg / ffprobe instances

* reduce number of instances

* further reduce number of instances

* fix envparsing test with configuration variables

* update docs and configuration with new media-{local,remote}-max-size variables

1 files changed, 0 insertions, 42 deletions

diff --git a/vendor/github.com/golang/geo/s2/point_vector.go b/vendor/github.com/golang/geo/s2/point_vector.go
deleted file mode 100644
index f8e6f65b5..000000000
--- a/vendor/github.com/golang/geo/s2/point_vector.go
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright 2017 Google Inc. All rights reserved.
-//
-// 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.
-
-package s2
-
-// Shape interface enforcement
-var (
-	_ Shape = (*PointVector)(nil)
-)
-
-// PointVector is a Shape representing a set of Points. Each point
-// is represented as a degenerate edge with the same starting and ending
-// vertices.
-//
-// This type is useful for adding a collection of points to an ShapeIndex.
-//
-// Its methods are on *PointVector due to implementation details of ShapeIndex.
-type PointVector []Point
-
-func (p *PointVector) NumEdges() int                     { return len(*p) }
-func (p *PointVector) Edge(i int) Edge                   { return Edge{(*p)[i], (*p)[i]} }
-func (p *PointVector) ReferencePoint() ReferencePoint    { return OriginReferencePoint(false) }
-func (p *PointVector) NumChains() int                    { return len(*p) }
-func (p *PointVector) Chain(i int) Chain                 { return Chain{i, 1} }
-func (p *PointVector) ChainEdge(i, j int) Edge           { return Edge{(*p)[i], (*p)[j]} }
-func (p *PointVector) ChainPosition(e int) ChainPosition { return ChainPosition{e, 0} }
-func (p *PointVector) Dimension() int                    { return 0 }
-func (p *PointVector) IsEmpty() bool                     { return defaultShapeIsEmpty(p) }
-func (p *PointVector) IsFull() bool                      { return defaultShapeIsFull(p) }
-func (p *PointVector) typeTag() typeTag                  { return typeTagPointVector }
-func (p *PointVector) privateInterface()                 {}