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Diffstat (limited to 'vendor/github.com/superseriousbusiness/go-jpeg-image-structure/v2/media_parser.go')
-rw-r--r--vendor/github.com/superseriousbusiness/go-jpeg-image-structure/v2/media_parser.go139
1 files changed, 0 insertions, 139 deletions
diff --git a/vendor/github.com/superseriousbusiness/go-jpeg-image-structure/v2/media_parser.go b/vendor/github.com/superseriousbusiness/go-jpeg-image-structure/v2/media_parser.go
deleted file mode 100644
index e6fc60bc4..000000000
--- a/vendor/github.com/superseriousbusiness/go-jpeg-image-structure/v2/media_parser.go
+++ /dev/null
@@ -1,139 +0,0 @@
-package jpegstructure
-
-import (
- "bufio"
- "bytes"
- "image"
- "io"
- "os"
-
- "image/jpeg"
-
- "github.com/dsoprea/go-logging"
- "github.com/dsoprea/go-utility/v2/image"
-)
-
-// JpegMediaParser is a `riimage.MediaParser` that knows how to parse JPEG
-// images.
-type JpegMediaParser struct {
-}
-
-// NewJpegMediaParser returns a new JpegMediaParser.
-func NewJpegMediaParser() *JpegMediaParser {
-
- // TODO(dustin): Add test
-
- return new(JpegMediaParser)
-}
-
-// Parse parses a JPEG uses an `io.ReadSeeker`. Even if it fails, it will return
-// the list of segments encountered prior to the failure.
-func (jmp *JpegMediaParser) Parse(rs io.ReadSeeker, size int) (ec riimage.MediaContext, err error) {
- defer func() {
- if state := recover(); state != nil {
- err = log.Wrap(state.(error))
- }
- }()
-
- s := bufio.NewScanner(rs)
-
- // Since each segment can be any size, our buffer must allowed to grow as
- // large as the file.
- buffer := []byte{}
- s.Buffer(buffer, size)
-
- js := NewJpegSplitter(nil)
- s.Split(js.Split)
-
- for s.Scan() != false {
- }
-
- // Always return the segments that were parsed, at least until there was an
- // error.
- ec = js.Segments()
-
- log.PanicIf(s.Err())
-
- return ec, nil
-}
-
-// ParseFile parses a JPEG file. Even if it fails, it will return the list of
-// segments encountered prior to the failure.
-func (jmp *JpegMediaParser) ParseFile(filepath string) (ec riimage.MediaContext, err error) {
- defer func() {
- if state := recover(); state != nil {
- err = log.Wrap(state.(error))
- }
- }()
-
- // TODO(dustin): Add test
-
- f, err := os.Open(filepath)
- log.PanicIf(err)
-
- defer f.Close()
-
- stat, err := f.Stat()
- log.PanicIf(err)
-
- size := stat.Size()
-
- sl, err := jmp.Parse(f, int(size))
-
- // Always return the segments that were parsed, at least until there was an
- // error.
- ec = sl
-
- log.PanicIf(err)
-
- return ec, nil
-}
-
-// ParseBytes parses a JPEG byte-slice. Even if it fails, it will return the
-// list of segments encountered prior to the failure.
-func (jmp *JpegMediaParser) ParseBytes(data []byte) (ec riimage.MediaContext, err error) {
- defer func() {
- if state := recover(); state != nil {
- err = log.Wrap(state.(error))
- }
- }()
-
- br := bytes.NewReader(data)
-
- sl, err := jmp.Parse(br, len(data))
-
- // Always return the segments that were parsed, at least until there was an
- // error.
- ec = sl
-
- log.PanicIf(err)
-
- return ec, nil
-}
-
-// LooksLikeFormat indicates whether the data looks like a JPEG image.
-func (jmp *JpegMediaParser) LooksLikeFormat(data []byte) bool {
- if len(data) < 4 {
- return false
- }
-
- l := len(data)
- if data[0] != 0xff || data[1] != MARKER_SOI || data[l-2] != 0xff || data[l-1] != MARKER_EOI {
- return false
- }
-
- return true
-}
-
-// GetImage returns an image.Image-compatible struct.
-func (jmp *JpegMediaParser) GetImage(r io.Reader) (img image.Image, err error) {
- img, err = jpeg.Decode(r)
- log.PanicIf(err)
-
- return img, nil
-}
-
-var (
- // Enforce interface conformance.
- _ riimage.MediaParser = new(JpegMediaParser)
-)