[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

2 files changed, 0 insertions, 43 deletions

diff --git a/vendor/github.com/dsoprea/go-utility/v2/image/README.md b/vendor/github.com/dsoprea/go-utility/v2/image/README.md
deleted file mode 100644
index 1509ff666..000000000
--- a/vendor/github.com/dsoprea/go-utility/v2/image/README.md
+++ /dev/null
@@ -1,9 +0,0 @@
-[![GoDoc](https://godoc.org/github.com/dsoprea/go-utility/image?status.svg)](https://godoc.org/github.com/dsoprea/go-utility/image)
-[![Build Status](https://travis-ci.org/dsoprea/go-utility.svg?branch=master)](https://travis-ci.org/dsoprea/go-utility)
-[![Coverage Status](https://coveralls.io/repos/github/dsoprea/go-utility/badge.svg?branch=master)](https://coveralls.io/github/dsoprea/go-utility?branch=master)
-[![Go Report Card](https://goreportcard.com/badge/github.com/dsoprea/go-utility)](https://goreportcard.com/report/github.com/dsoprea/go-utility)
-
-# media_parser_type
-
-Common image-parsing interfaces. Used for JPEG, PNG, and HEIC parsers used by
-go-exif-knife.
diff --git a/vendor/github.com/dsoprea/go-utility/v2/image/media_parser_type.go b/vendor/github.com/dsoprea/go-utility/v2/image/media_parser_type.go
deleted file mode 100644
index 8776a1fdd..000000000
--- a/vendor/github.com/dsoprea/go-utility/v2/image/media_parser_type.go
+++ /dev/null
@@ -1,34 +0,0 @@
-package riimage
-
-import (
-	"io"
-
-	"github.com/dsoprea/go-exif/v3"
-)
-
-// MediaContext is an accessor that knows how to extract specific metadata from
-// the media.
-type MediaContext interface {
-	// Exif returns the EXIF's root IFD.
-	Exif() (rootIfd *exif.Ifd, data []byte, err error)
-}
-
-// MediaParser prescribes a specific structure for the parser types that are
-// imported from other projects. We don't use it directly, but we use this to
-// impose structure.
-type MediaParser interface {
-	// Parse parses a stream using an `io.ReadSeeker`. `mc` should *actually* be
-	// a `ExifContext`.
-	Parse(r io.ReadSeeker, size int) (mc MediaContext, err error)
-
-	// ParseFile parses a stream using a file. `mc` should *actually* be a
-	// `ExifContext`.
-	ParseFile(filepath string) (mc MediaContext, err error)
-
-	// ParseBytes parses a stream direct from bytes. `mc` should *actually* be
-	// a `ExifContext`.
-	ParseBytes(data []byte) (mc MediaContext, err error)
-
-	// Parses the data to determine if it's a compatible format.
-	LooksLikeFormat(data []byte) bool
-}