[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, 148 insertions, 0 deletions

diff --git a/vendor/github.com/tetratelabs/wazero/internal/wasip1/rights.go b/vendor/github.com/tetratelabs/wazero/internal/wasip1/rights.go
new file mode 100644
index 000000000..2ab56c604
--- /dev/null
+++ b/vendor/github.com/tetratelabs/wazero/internal/wasip1/rights.go
@@ -0,0 +1,148 @@
+package wasip1
+
+// See https://github.com/WebAssembly/WASI/blob/snapshot-01/phases/snapshot/docs.md#-rights-flagsu64
+const (
+	// RIGHT_FD_DATASYNC is the right to invoke fd_datasync. If RIGHT_PATH_OPEN
+	// is set, includes the right to invoke path_open with FD_DSYNC.
+	RIGHT_FD_DATASYNC uint32 = 1 << iota //nolint
+
+	// RIGHT_FD_READ is he right to invoke fd_read and sock_recv. If
+	// RIGHT_FD_SYNC is set, includes the right to invoke fd_pread.
+	RIGHT_FD_READ
+
+	// RIGHT_FD_SEEK is the right to invoke fd_seek. This flag implies
+	// RIGHT_FD_TELL.
+	RIGHT_FD_SEEK
+
+	// RIGHT_FDSTAT_SET_FLAGS is the right to invoke fd_fdstat_set_flags.
+	RIGHT_FDSTAT_SET_FLAGS
+
+	// RIGHT_FD_SYNC The right to invoke fd_sync. If path_open is set, includes
+	// the right to invoke path_open with FD_RSYNC and FD_DSYNC.
+	RIGHT_FD_SYNC
+
+	// RIGHT_FD_TELL is the right to invoke fd_seek in such a way that the file
+	// offset remains unaltered (i.e., whence::cur with offset zero), or to
+	// invoke fd_tell.
+	RIGHT_FD_TELL
+
+	// RIGHT_FD_WRITE is the right to invoke fd_write and sock_send. If
+	// RIGHT_FD_SEEK is set, includes the right to invoke fd_pwrite.
+	RIGHT_FD_WRITE
+
+	// RIGHT_FD_ADVISE is the right to invoke fd_advise.
+	RIGHT_FD_ADVISE
+
+	// RIGHT_FD_ALLOCATE is the right to invoke fd_allocate.
+	RIGHT_FD_ALLOCATE
+
+	// RIGHT_PATH_CREATE_DIRECTORY is the right to invoke
+	// path_create_directory.
+	RIGHT_PATH_CREATE_DIRECTORY
+
+	// RIGHT_PATH_CREATE_FILE when RIGHT_PATH_OPEN is set, the right to invoke
+	// path_open with O_CREAT.
+	RIGHT_PATH_CREATE_FILE
+
+	// RIGHT_PATH_LINK_SOURCE is the right to invoke path_link with the file
+	// descriptor as the source directory.
+	RIGHT_PATH_LINK_SOURCE
+
+	// RIGHT_PATH_LINK_TARGET is the right to invoke path_link with the file
+	// descriptor as the target directory.
+	RIGHT_PATH_LINK_TARGET
+
+	// RIGHT_PATH_OPEN is the right to invoke path_open.
+	RIGHT_PATH_OPEN
+
+	// RIGHT_FD_READDIR is the right to invoke fd_readdir.
+	RIGHT_FD_READDIR
+
+	// RIGHT_PATH_READLINK is the right to invoke path_readlink.
+	RIGHT_PATH_READLINK
+
+	// RIGHT_PATH_RENAME_SOURCE is the right to invoke path_rename with the
+	// file descriptor as the source directory.
+	RIGHT_PATH_RENAME_SOURCE
+
+	// RIGHT_PATH_RENAME_TARGET is the right to invoke path_rename with the
+	// file descriptor as the target directory.
+	RIGHT_PATH_RENAME_TARGET
+
+	// RIGHT_PATH_FILESTAT_GET is the right to invoke path_filestat_get.
+	RIGHT_PATH_FILESTAT_GET
+
+	// RIGHT_PATH_FILESTAT_SET_SIZE is the right to change a file's size (there
+	// is no path_filestat_set_size). If RIGHT_PATH_OPEN is set, includes the
+	// right to invoke path_open with O_TRUNC.
+	RIGHT_PATH_FILESTAT_SET_SIZE
+
+	// RIGHT_PATH_FILESTAT_SET_TIMES is the right to invoke
+	// path_filestat_set_times.
+	RIGHT_PATH_FILESTAT_SET_TIMES
+
+	// RIGHT_FD_FILESTAT_GET is the right to invoke fd_filestat_get.
+	RIGHT_FD_FILESTAT_GET
+
+	// RIGHT_FD_FILESTAT_SET_SIZE is the right to invoke fd_filestat_set_size.
+	RIGHT_FD_FILESTAT_SET_SIZE
+
+	// RIGHT_FD_FILESTAT_SET_TIMES is the right to invoke
+	// fd_filestat_set_times.
+	RIGHT_FD_FILESTAT_SET_TIMES
+
+	// RIGHT_PATH_SYMLINK is the right to invoke path_symlink.
+	RIGHT_PATH_SYMLINK
+
+	// RIGHT_PATH_REMOVE_DIRECTORY is the right to invoke
+	// path_remove_directory.
+	RIGHT_PATH_REMOVE_DIRECTORY
+
+	// RIGHT_PATH_UNLINK_FILE is the right to invoke path_unlink_file.
+	RIGHT_PATH_UNLINK_FILE
+
+	// RIGHT_POLL_FD_READWRITE when RIGHT_FD_READ is set, includes the right to
+	// invoke poll_oneoff to subscribe to eventtype::fd_read. If RIGHT_FD_WRITE
+	// is set, includes the right to invoke poll_oneoff to subscribe to
+	// eventtype::fd_write.
+	RIGHT_POLL_FD_READWRITE
+
+	// RIGHT_SOCK_SHUTDOWN is the right to invoke sock_shutdown.
+	RIGHT_SOCK_SHUTDOWN
+)
+
+func RightsString(rights int) string {
+	return flagsString(rightNames[:], rights)
+}
+
+var rightNames = [...]string{
+	"FD_DATASYNC",
+	"FD_READ",
+	"FD_SEEK",
+	"FDSTAT_SET_FLAGS",
+	"FD_SYNC",
+	"FD_TELL",
+	"FD_WRITE",
+	"FD_ADVISE",
+	"FD_ALLOCATE",
+	"PATH_CREATE_DIRECTORY",
+	"PATH_CREATE_FILE",
+	"PATH_LINK_SOURCE",
+	"PATH_LINK_TARGET",
+	"PATH_OPEN",
+	"FD_READDIR",
+	"PATH_READLINK",
+	"PATH_RENAME_SOURCE",
+	"PATH_RENAME_TARGET",
+	"PATH_FILESTAT_GET",
+	"PATH_FILESTAT_SET_SIZE",
+	"PATH_FILESTAT_SET_TIMES",
+	"FD_FILESTAT_GET",
+	"FD_FILESTAT_SET_SIZE",
+	"FD_FILESTAT_SET_TIMES",
+	"PATH_SYMLINK",
+	"PATH_REMOVE_DIRECTORY",
+	"PATH_UNLINK_FILE",
+	"POLL_FD_READWRITE",
+	"SOCK_SHUTDOWN",
+}