[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, 66 deletions

diff --git a/vendor/github.com/golang/geo/s2/regionunion.go b/vendor/github.com/golang/geo/s2/regionunion.go
deleted file mode 100644
index 915b7c330..000000000
--- a/vendor/github.com/golang/geo/s2/regionunion.go
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright 2020 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
-
-// A RegionUnion represents a union of possibly overlapping regions.
-// It is convenient for computing a covering of a set of regions.
-type RegionUnion []Region
-
-// CapBound returns a bounding cap for this RegionUnion.
-func (ru RegionUnion) CapBound() Cap { return ru.RectBound().CapBound() }
-
-// RectBound returns a bounding latitude-longitude rectangle for this RegionUnion.
-func (ru RegionUnion) RectBound() Rect {
-	ret := EmptyRect()
-	for _, reg := range ru {
-		ret = ret.Union(reg.RectBound())
-	}
-	return ret
-}
-
-// ContainsCell reports whether the given Cell is contained by this RegionUnion.
-func (ru RegionUnion) ContainsCell(c Cell) bool {
-	for _, reg := range ru {
-		if reg.ContainsCell(c) {
-			return true
-		}
-	}
-	return false
-}
-
-// IntersectsCell reports whether this RegionUnion intersects the given cell.
-func (ru RegionUnion) IntersectsCell(c Cell) bool {
-	for _, reg := range ru {
-		if reg.IntersectsCell(c) {
-			return true
-		}
-	}
-	return false
-}
-
-// ContainsPoint reports whether this RegionUnion contains the Point.
-func (ru RegionUnion) ContainsPoint(p Point) bool {
-	for _, reg := range ru {
-		if reg.ContainsPoint(p) {
-			return true
-		}
-	}
-	return false
-}
-
-// CellUnionBound computes a covering of the RegionUnion.
-func (ru RegionUnion) CellUnionBound() []CellID {
-	return ru.CapBound().CellUnionBound()
-}