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

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* 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
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kim 2024-07-12 09:39:47 +00:00 • committed by GitHub
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53
vendor/github.com/golang/geo/s2/polyline_measures.go generated vendored
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// Copyright 2018 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
// This file defines various measures for polylines on the sphere. These are
// low-level methods that work directly with arrays of Points. They are used to
// implement the methods in various other measures files.
import (
"github.com/golang/geo/r3"
"github.com/golang/geo/s1"
)
// polylineLength returns the length of the given Polyline.
// It returns 0 for polylines with fewer than two vertices.
func polylineLength(p []Point) s1.Angle {
var length s1.Angle
for i := 1; i < len(p); i++ {
length += p[i-1].Distance(p[i])
}
return length
}
// polylineCentroid returns the true centroid of the polyline multiplied by the
// length of the polyline. The result is not unit length, so you may wish to
// normalize it.
//
// Scaling by the Polyline length makes it easy to compute the centroid
// of several Polylines (by simply adding up their centroids).
//
// Note that for degenerate Polylines (e.g., AA) this returns Point(0, 0, 0).
// (This answer is correct; the result of this function is a line integral over
// the polyline, whose value is always zero if the polyline is degenerate.)
func polylineCentroid(p []Point) Point {
var centroid r3.Vector
for i := 1; i < len(p); i++ {
centroid = centroid.Add(EdgeTrueCentroid(p[i-1], p[i]).Vector)
}
return Point{centroid}
}