[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
This commit is contained in:
kim
2024-07-12 09:39:47 +00:00
committed by GitHub
parent 5bc567196b
commit cde2fb6244
376 changed files with 8026 additions and 54091 deletions

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# media_parser_type
Common image-parsing interfaces. Used for JPEG, PNG, and HEIC parsers used by
go-exif-knife.

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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
}