Depenancy upgrades and movign to dep. (#8630)

72 files changed, 174 insertions, 3405 deletions

diff --git a/vendor/github.com/rwcarlsen/goexif/.gitignore b/vendor/github.com/rwcarlsen/goexif/.gitignore
deleted file mode 100644
index 3866bbf31..000000000
--- a/vendor/github.com/rwcarlsen/goexif/.gitignore
+++ /dev/null
@@ -1,23 +0,0 @@
-# Compiled Object files, Static and Dynamic libs (Shared Objects)
-*.o
-*.a
-*.so
-*.sw*
-
-# Folders
-_obj
-_test
-
-# Architecture specific extensions/prefixes
-*.[568vq]
-[568vq].out
-
-*.cgo1.go
-*.cgo2.c
-_cgo_defun.c
-_cgo_gotypes.go
-_cgo_export.*
-
-_testmain.go
-
-*.exe
diff --git a/vendor/github.com/rwcarlsen/goexif/README.md b/vendor/github.com/rwcarlsen/goexif/README.md
deleted file mode 100644
index b57ef20fc..000000000
--- a/vendor/github.com/rwcarlsen/goexif/README.md
+++ /dev/null
@@ -1,71 +0,0 @@
-goexif
-======
-
-Provides decoding of basic exif and tiff encoded data. Still in alpha - no guarantees.
-Suggestions and pull requests are welcome.  Functionality is split into two packages - "exif" and "tiff"
-The exif package depends on the tiff package. 
-Documentation can be found at http://godoc.org/github.com/rwcarlsen/goexif
-
-Like goexif? - Bitcoin Cash tips welcome: 1DrU5V37nTXuv4vnRLVpahJEjhdATNgoBh
-
-To install, in a terminal type:
-
-```
-go get github.com/rwcarlsen/goexif/exif
-```
-
-Or if you just want the tiff package:
-
-```
-go get github.com/rwcarlsen/goexif/tiff
-```
-
-Example usage:
-
-```go
-package main
-
-import (
-	"fmt"
-	"log"
-	"os"
-
-	"github.com/rwcarlsen/goexif/exif"
-	"github.com/rwcarlsen/goexif/mknote"
-)
-
-func ExampleDecode() {
-	fname := "sample1.jpg"
-
-	f, err := os.Open(fname)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Optionally register camera makenote data parsing - currently Nikon and
-	// Canon are supported.
-	exif.RegisterParsers(mknote.All...)
-
-	x, err := exif.Decode(f)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	camModel, _ := x.Get(exif.Model) // normally, don't ignore errors!
-	fmt.Println(camModel.StringVal())
-
-	focal, _ := x.Get(exif.FocalLength)
-	numer, denom, _ := focal.Rat2(0) // retrieve first (only) rat. value
-	fmt.Printf("%v/%v", numer, denom)
-
-	// Two convenience functions exist for date/time taken and GPS coords:
-	tm, _ := x.DateTime()
-	fmt.Println("Taken: ", tm)
-
-	lat, long, _ := x.LatLong()
-	fmt.Println("lat, long: ", lat, ", ", long)
-}
-```
-
-<!--golang-->
-[![githalytics.com alpha](https://cruel-carlota.pagodabox.com/5e166f74cdb82b999ccd84e3c4dc4348 "githalytics.com")](http://githalytics.com/rwcarlsen/goexif)
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/corrupt/huge_tag_exif.jpg b/vendor/github.com/rwcarlsen/goexif/exif/corrupt/huge_tag_exif.jpg
deleted file mode 100644
index ffb31743d..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/corrupt/huge_tag_exif.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/corrupt/infinite_loop_exif.jpg b/vendor/github.com/rwcarlsen/goexif/exif/corrupt/infinite_loop_exif.jpg
deleted file mode 100644
index 6b0994713..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/corrupt/infinite_loop_exif.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/corrupt/max_uint32_exif.jpg b/vendor/github.com/rwcarlsen/goexif/exif/corrupt/max_uint32_exif.jpg
deleted file mode 100644
index 2a51b0ba0..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/corrupt/max_uint32_exif.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/example_test.go b/vendor/github.com/rwcarlsen/goexif/exif/example_test.go
deleted file mode 100644
index 45fd5d4ad..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/example_test.go
+++ /dev/null
@@ -1,42 +0,0 @@
-package exif_test
-
-import (
-	"fmt"
-	"log"
-	"os"
-
-	"github.com/rwcarlsen/goexif/exif"
-	"github.com/rwcarlsen/goexif/mknote"
-)
-
-func ExampleDecode() {
-	fname := "sample1.jpg"
-
-	f, err := os.Open(fname)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Optionally register camera makenote data parsing - currently Nikon and
-	// Canon are supported.
-	exif.RegisterParsers(mknote.All...)
-
-	x, err := exif.Decode(f)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	camModel, _ := x.Get(exif.Model) // normally, don't ignore errors!
-	fmt.Println(camModel.StringVal())
-
-	focal, _ := x.Get(exif.FocalLength)
-	numer, denom, _ := focal.Rat2(0) // retrieve first (only) rat. value
-	fmt.Printf("%v/%v", numer, denom)
-
-	// Two convenience functions exist for date/time taken and GPS coords:
-	tm, _ := x.DateTime()
-	fmt.Println("Taken: ", tm)
-
-	lat, long, _ := x.LatLong()
-	fmt.Println("lat, long: ", lat, ", ", long)
-}
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/exif.go b/vendor/github.com/rwcarlsen/goexif/exif/exif.go
index b420729da..87166ee4e 100644
--- a/vendor/github.com/rwcarlsen/goexif/exif/exif.go
+++ b/vendor/github.com/rwcarlsen/goexif/exif/exif.go
@@ -201,14 +201,16 @@ type Exif struct {
 	Raw  []byte
 }
 
-// Decode parses EXIF-encoded data from r and returns a queryable Exif
-// object. After the exif data section is called and the tiff structure
-// decoded, each registered parser is called (in order of registration). If
-// one parser returns an error, decoding terminates and the remaining
-// parsers are not called.
-// The error can be inspected with functions such as IsCriticalError to
-// determine whether the returned object might still be usable.
+// Decode parses EXIF data from r (a TIFF, JPEG, or raw EXIF block)
+// and returns a queryable Exif object. After the EXIF data section is
+// called and the TIFF structure is decoded, each registered parser is
+// called (in order of registration). If one parser returns an error,
+// decoding terminates and the remaining parsers are not called.
+//
+// The error can be inspected with functions such as IsCriticalError
+// to determine whether the returned object might still be usable.
 func Decode(r io.Reader) (*Exif, error) {
+
 	// EXIF data in JPEG is stored in the APP1 marker. EXIF data uses the TIFF
 	// format to store data.
 	// If we're parsing a TIFF image, we don't need to strip away any data.
@@ -216,15 +218,14 @@ func Decode(r io.Reader) (*Exif, error) {
 	// marker and also the EXIF header.
 
 	header := make([]byte, 4)
-	n, err := r.Read(header)
+	n, err := io.ReadFull(r, header)
 	if err != nil {
-		return nil, err
-	}
-	if n < len(header) {
-		return nil, errors.New("exif: short read on header")
+		return nil, fmt.Errorf("exif: error reading 4 byte header, got %d, %v", n, err)
 	}
 
 	var isTiff bool
+	var isRawExif bool
+	var assumeJPEG bool
 	switch string(header) {
 	case "II*\x00":
 		// TIFF - Little endian (Intel)
@@ -232,8 +233,11 @@ func Decode(r io.Reader) (*Exif, error) {
 	case "MM\x00*":
 		// TIFF - Big endian (Motorola)
 		isTiff = true
+	case "Exif":
+		isRawExif = true
 	default:
 		// Not TIFF, assume JPEG
+		assumeJPEG = true
 	}
 
 	// Put the header bytes back into the reader.
@@ -241,9 +245,20 @@ func Decode(r io.Reader) (*Exif, error) {
 	var (
 		er  *bytes.Reader
 		tif *tiff.Tiff
+		sec *appSec
 	)
 
-	if isTiff {
+	switch {
+	case isRawExif:
+		var header [6]byte
+		if _, err := io.ReadFull(r, header[:]); err != nil {
+			return nil, fmt.Errorf("exif: unexpected raw exif header read error")
+		}
+		if got, want := string(header[:]), "Exif\x00\x00"; got != want {
+			return nil, fmt.Errorf("exif: unexpected raw exif header; got %q, want %q", got, want)
+		}
+		fallthrough
+	case isTiff:
 		// Functions below need the IFDs from the TIFF data to be stored in a
 		// *bytes.Reader.  We use TeeReader to get a copy of the bytes as a
 		// side-effect of tiff.Decode() doing its work.
@@ -251,9 +266,8 @@ func Decode(r io.Reader) (*Exif, error) {
 		tr := io.TeeReader(r, b)
 		tif, err = tiff.Decode(tr)
 		er = bytes.NewReader(b.Bytes())
-	} else {
+	case assumeJPEG:
 		// Locate the JPEG APP1 header.
-		var sec *appSec
 		sec, err = newAppSec(jpeg_APP1, r)
 		if err != nil {
 			return nil, err
@@ -368,8 +382,27 @@ func (x *Exif) DateTime() (time.Time, error) {
 	exifTimeLayout := "2006:01:02 15:04:05"
 	dateStr := strings.TrimRight(string(tag.Val), "\x00")
 	// TODO(bradfitz,mpl): look for timezone offset, GPS time, etc.
-	// For now, just always return the time.Local timezone.
-	return time.ParseInLocation(exifTimeLayout, dateStr, time.Local)
+	timeZone := time.Local
+	if tz, _ := x.TimeZone(); tz != nil {
+		timeZone = tz
+	}
+	return time.ParseInLocation(exifTimeLayout, dateStr, timeZone)
+}
+
+func (x *Exif) TimeZone() (*time.Location, error) {
+	// TODO: parse more timezone fields (e.g. Nikon WorldTime).
+	timeInfo, err := x.Get("Canon.TimeInfo")
+	if err != nil {
+		return nil, err
+	}
+	if timeInfo.Count < 2 {
+		return nil, errors.New("Canon.TimeInfo does not contain timezone")
+	}
+	offsetMinutes, err := timeInfo.Int(1)
+	if err != nil {
+		return nil, err
+	}
+	return time.FixedZone("", offsetMinutes*60), nil
 }
 
 func ratFloat(num, dem int64) float64 {
@@ -574,7 +607,7 @@ func newAppSec(marker byte, r io.Reader) (*appSec, error) {
 		}
 
 		dataLenBytes := make([]byte, 2)
-		for k,_ := range dataLenBytes {
+		for k, _ := range dataLenBytes {
 			c, err := br.ReadByte()
 			if err != nil {
 				return nil, err
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/exif_test.go b/vendor/github.com/rwcarlsen/goexif/exif/exif_test.go
deleted file mode 100644
index c53f1ddda..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/exif_test.go
+++ /dev/null
@@ -1,202 +0,0 @@
-package exif
-
-//go:generate go run regen_regress.go -- regress_expected_test.go
-//go:generate go fmt regress_expected_test.go
-
-import (
-	"flag"
-	"fmt"
-	"math"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/rwcarlsen/goexif/tiff"
-)
-
-var dataDir = flag.String("test_data_dir", ".", "Directory where the data files for testing are located")
-
-func TestDecode(t *testing.T) {
-	fpath := filepath.Join(*dataDir, "samples")
-	f, err := os.Open(fpath)
-	if err != nil {
-		t.Fatalf("Could not open sample directory '%s': %v", fpath, err)
-	}
-
-	names, err := f.Readdirnames(0)
-	if err != nil {
-		t.Fatalf("Could not read sample directory '%s': %v", fpath, err)
-	}
-
-	cnt := 0
-	for _, name := range names {
-		if !strings.HasSuffix(name, ".jpg") {
-			t.Logf("skipping non .jpg file %v", name)
-			continue
-		}
-		t.Logf("testing file %v", name)
-		f, err := os.Open(filepath.Join(fpath, name))
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		x, err := Decode(f)
-		if err != nil {
-			t.Fatal(err)
-		} else if x == nil {
-			t.Fatalf("No error and yet %v was not decoded", name)
-		}
-
-		t.Logf("checking pic %v", name)
-		x.Walk(&walker{name, t})
-		cnt++
-	}
-	if cnt != len(regressExpected) {
-		t.Errorf("Did not process enough samples, got %d, want %d", cnt, len(regressExpected))
-	}
-}
-
-type walker struct {
-	picName string
-	t       *testing.T
-}
-
-func (w *walker) Walk(field FieldName, tag *tiff.Tag) error {
-	// this needs to be commented out when regenerating regress expected vals
-	pic := regressExpected[w.picName]
-	if pic == nil {
-		w.t.Errorf("   regression data not found")
-		return nil
-	}
-
-	exp, ok := pic[field]
-	if !ok {
-		w.t.Errorf("   regression data does not have field %v", field)
-		return nil
-	}
-
-	s := tag.String()
-	if tag.Count == 1 && s != "\"\"" {
-		s = fmt.Sprintf("[%s]", s)
-	}
-	got := tag.String()
-
-	if exp != got {
-		fmt.Println("s: ", s)
-		fmt.Printf("len(s)=%v\n", len(s))
-		w.t.Errorf("   field %v bad tag: expected '%s', got '%s'", field, exp, got)
-	}
-	return nil
-}
-
-func TestMarshal(t *testing.T) {
-	name := filepath.Join(*dataDir, "sample1.jpg")
-	f, err := os.Open(name)
-	if err != nil {
-		t.Fatalf("%v\n", err)
-	}
-	defer f.Close()
-
-	x, err := Decode(f)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if x == nil {
-		t.Fatal("bad err")
-	}
-
-	b, err := x.MarshalJSON()
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	t.Logf("%s", b)
-}
-
-func testSingleParseDegreesString(t *testing.T, s string, w float64) {
-	g, err := parseTagDegreesString(s)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if math.Abs(w-g) > 1e-10 {
-		t.Errorf("Wrong parsing result %s: Want %.12f, got %.12f", s, w, g)
-	}
-}
-
-func TestParseTagDegreesString(t *testing.T) {
-	// semicolon as decimal mark
-	testSingleParseDegreesString(t, "52,00000,50,00000,34,01180", 52.842781055556) // comma as separator
-	testSingleParseDegreesString(t, "52,00000;50,00000;34,01180", 52.842781055556) // semicolon as separator
-
-	// point as decimal mark
-	testSingleParseDegreesString(t, "14.00000,44.00000,34.01180", 14.742781055556) // comma as separator
-	testSingleParseDegreesString(t, "14.00000;44.00000;34.01180", 14.742781055556) // semicolon as separator
-	testSingleParseDegreesString(t, "14.00000;44.00000,34.01180", 14.742781055556) // mixed separators
-
-	testSingleParseDegreesString(t, "-008.0,30.0,03.6", -8.501) // leading zeros
-
-	// no decimal places
-	testSingleParseDegreesString(t, "-10,15,54", -10.265)
-	testSingleParseDegreesString(t, "-10;15;54", -10.265)
-
-	// incorrect mix of comma and point as decimal mark
-	s := "-17,00000,15.00000,04.80000"
-	if _, err := parseTagDegreesString(s); err == nil {
-		t.Error("parseTagDegreesString: false positive for " + s)
-	}
-}
-
-// Make sure we error out early when a tag had a count of MaxUint32
-func TestMaxUint32CountError(t *testing.T) {
-	name := filepath.Join(*dataDir, "corrupt/max_uint32_exif.jpg")
-	f, err := os.Open(name)
-	if err != nil {
-		t.Fatalf("%v\n", err)
-	}
-	defer f.Close()
-
-	_, err = Decode(f)
-	if err == nil {
-		t.Fatal("no error on bad exif data")
-	}
-	if !strings.Contains(err.Error(), "invalid Count offset") {
-		t.Fatal("wrong error:", err.Error())
-	}
-}
-
-// Make sure we error out early with tag data sizes larger than the image file
-func TestHugeTagError(t *testing.T) {
-	name := filepath.Join(*dataDir, "corrupt/huge_tag_exif.jpg")
-	f, err := os.Open(name)
-	if err != nil {
-		t.Fatalf("%v\n", err)
-	}
-	defer f.Close()
-
-	_, err = Decode(f)
-	if err == nil {
-		t.Fatal("no error on bad exif data")
-	}
-	if !strings.Contains(err.Error(), "short read") {
-		t.Fatal("wrong error:", err.Error())
-	}
-}
-
-// Check for a 0-length tag value
-func TestZeroLengthTagError(t *testing.T) {
-	name := filepath.Join(*dataDir, "corrupt/infinite_loop_exif.jpg")
-	f, err := os.Open(name)
-	if err != nil {
-		t.Fatalf("%v\n", err)
-	}
-	defer f.Close()
-
-	_, err = Decode(f)
-	if err == nil {
-		t.Fatal("no error on bad exif data")
-	}
-	if !strings.Contains(err.Error(), "zero length tag value") {
-		t.Fatal("wrong error:", err.Error())
-	}
-}
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/fields.go b/vendor/github.com/rwcarlsen/goexif/exif/fields.go
index 0388d2390..734034de6 100644
--- a/vendor/github.com/rwcarlsen/goexif/exif/fields.go
+++ b/vendor/github.com/rwcarlsen/goexif/exif/fields.go
@@ -9,127 +9,127 @@ const UnknownPrefix = "UnknownTag_"
 // Primary EXIF fields
 const (
 	ImageWidth                 FieldName = "ImageWidth"
-	ImageLength                          = "ImageLength" // Image height called Length by EXIF spec
-	BitsPerSample                        = "BitsPerSample"
-	Compression                          = "Compression"
-	PhotometricInterpretation            = "PhotometricInterpretation"
-	Orientation                          = "Orientation"
-	SamplesPerPixel                      = "SamplesPerPixel"
-	PlanarConfiguration                  = "PlanarConfiguration"
-	YCbCrSubSampling                     = "YCbCrSubSampling"
-	YCbCrPositioning                     = "YCbCrPositioning"
-	XResolution                          = "XResolution"
-	YResolution                          = "YResolution"
-	ResolutionUnit                       = "ResolutionUnit"
-	DateTime                             = "DateTime"
-	ImageDescription                     = "ImageDescription"
-	Make                                 = "Make"
-	Model                                = "Model"
-	Software                             = "Software"
-	Artist                               = "Artist"
-	Copyright                            = "Copyright"
-	ExifIFDPointer                       = "ExifIFDPointer"
-	GPSInfoIFDPointer                    = "GPSInfoIFDPointer"
-	InteroperabilityIFDPointer           = "InteroperabilityIFDPointer"
-	ExifVersion                          = "ExifVersion"
-	FlashpixVersion                      = "FlashpixVersion"
-	ColorSpace                           = "ColorSpace"
-	ComponentsConfiguration              = "ComponentsConfiguration"
-	CompressedBitsPerPixel               = "CompressedBitsPerPixel"
-	PixelXDimension                      = "PixelXDimension"
-	PixelYDimension                      = "PixelYDimension"
-	MakerNote                            = "MakerNote"
-	UserComment                          = "UserComment"
-	RelatedSoundFile                     = "RelatedSoundFile"
-	DateTimeOriginal                     = "DateTimeOriginal"
-	DateTimeDigitized                    = "DateTimeDigitized"
-	SubSecTime                           = "SubSecTime"
-	SubSecTimeOriginal                   = "SubSecTimeOriginal"
-	SubSecTimeDigitized                  = "SubSecTimeDigitized"
-	ImageUniqueID                        = "ImageUniqueID"
-	ExposureTime                         = "ExposureTime"
-	FNumber                              = "FNumber"
-	ExposureProgram                      = "ExposureProgram"
-	SpectralSensitivity                  = "SpectralSensitivity"
-	ISOSpeedRatings                      = "ISOSpeedRatings"
-	OECF                                 = "OECF"
-	ShutterSpeedValue                    = "ShutterSpeedValue"
-	ApertureValue                        = "ApertureValue"
-	BrightnessValue                      = "BrightnessValue"
-	ExposureBiasValue                    = "ExposureBiasValue"
-	MaxApertureValue                     = "MaxApertureValue"
-	SubjectDistance                      = "SubjectDistance"
-	MeteringMode                         = "MeteringMode"
-	LightSource                          = "LightSource"
-	Flash                                = "Flash"
-	FocalLength                          = "FocalLength"
-	SubjectArea                          = "SubjectArea"
-	FlashEnergy                          = "FlashEnergy"
-	SpatialFrequencyResponse             = "SpatialFrequencyResponse"
-	FocalPlaneXResolution                = "FocalPlaneXResolution"
-	FocalPlaneYResolution                = "FocalPlaneYResolution"
-	FocalPlaneResolutionUnit             = "FocalPlaneResolutionUnit"
-	SubjectLocation                      = "SubjectLocation"
-	ExposureIndex                        = "ExposureIndex"
-	SensingMethod                        = "SensingMethod"
-	FileSource                           = "FileSource"
-	SceneType                            = "SceneType"
-	CFAPattern                           = "CFAPattern"
-	CustomRendered                       = "CustomRendered"
-	ExposureMode                         = "ExposureMode"
-	WhiteBalance                         = "WhiteBalance"
-	DigitalZoomRatio                     = "DigitalZoomRatio"
-	FocalLengthIn35mmFilm                = "FocalLengthIn35mmFilm"
-	SceneCaptureType                     = "SceneCaptureType"
-	GainControl                          = "GainControl"
-	Contrast                             = "Contrast"
-	Saturation                           = "Saturation"
-	Sharpness                            = "Sharpness"
-	DeviceSettingDescription             = "DeviceSettingDescription"
-	SubjectDistanceRange                 = "SubjectDistanceRange"
-	LensMake                             = "LensMake"
-	LensModel                            = "LensModel"
+	ImageLength                FieldName = "ImageLength" // Image height called Length by EXIF spec
+	BitsPerSample              FieldName = "BitsPerSample"
+	Compression                FieldName = "Compression"
+	PhotometricInterpretation  FieldName = "PhotometricInterpretation"
+	Orientation                FieldName = "Orientation"
+	SamplesPerPixel            FieldName = "SamplesPerPixel"
+	PlanarConfiguration        FieldName = "PlanarConfiguration"
+	YCbCrSubSampling           FieldName = "YCbCrSubSampling"
+	YCbCrPositioning           FieldName = "YCbCrPositioning"
+	XResolution                FieldName = "XResolution"
+	YResolution                FieldName = "YResolution"
+	ResolutionUnit             FieldName = "ResolutionUnit"
+	DateTime                   FieldName = "DateTime"
+	ImageDescription           FieldName = "ImageDescription"
+	Make                       FieldName = "Make"
+	Model                      FieldName = "Model"
+	Software                   FieldName = "Software"
+	Artist                     FieldName = "Artist"
+	Copyright                  FieldName = "Copyright"
+	ExifIFDPointer             FieldName = "ExifIFDPointer"
+	GPSInfoIFDPointer          FieldName = "GPSInfoIFDPointer"
+	InteroperabilityIFDPointer FieldName = "InteroperabilityIFDPointer"
+	ExifVersion                FieldName = "ExifVersion"
+	FlashpixVersion            FieldName = "FlashpixVersion"
+	ColorSpace                 FieldName = "ColorSpace"
+	ComponentsConfiguration    FieldName = "ComponentsConfiguration"
+	CompressedBitsPerPixel     FieldName = "CompressedBitsPerPixel"
+	PixelXDimension            FieldName = "PixelXDimension"
+	PixelYDimension            FieldName = "PixelYDimension"
+	MakerNote                  FieldName = "MakerNote"
+	UserComment                FieldName = "UserComment"
+	RelatedSoundFile           FieldName = "RelatedSoundFile"
+	DateTimeOriginal           FieldName = "DateTimeOriginal"
+	DateTimeDigitized          FieldName = "DateTimeDigitized"
+	SubSecTime                 FieldName = "SubSecTime"
+	SubSecTimeOriginal         FieldName = "SubSecTimeOriginal"
+	SubSecTimeDigitized        FieldName = "SubSecTimeDigitized"
+	ImageUniqueID              FieldName = "ImageUniqueID"
+	ExposureTime               FieldName = "ExposureTime"
+	FNumber                    FieldName = "FNumber"
+	ExposureProgram            FieldName = "ExposureProgram"
+	SpectralSensitivity        FieldName = "SpectralSensitivity"
+	ISOSpeedRatings            FieldName = "ISOSpeedRatings"
+	OECF                       FieldName = "OECF"
+	ShutterSpeedValue          FieldName = "ShutterSpeedValue"
+	ApertureValue              FieldName = "ApertureValue"
+	BrightnessValue            FieldName = "BrightnessValue"
+	ExposureBiasValue          FieldName = "ExposureBiasValue"
+	MaxApertureValue           FieldName = "MaxApertureValue"
+	SubjectDistance            FieldName = "SubjectDistance"
+	MeteringMode               FieldName = "MeteringMode"
+	LightSource                FieldName = "LightSource"
+	Flash                      FieldName = "Flash"
+	FocalLength                FieldName = "FocalLength"
+	SubjectArea                FieldName = "SubjectArea"
+	FlashEnergy                FieldName = "FlashEnergy"
+	SpatialFrequencyResponse   FieldName = "SpatialFrequencyResponse"
+	FocalPlaneXResolution      FieldName = "FocalPlaneXResolution"
+	FocalPlaneYResolution      FieldName = "FocalPlaneYResolution"
+	FocalPlaneResolutionUnit   FieldName = "FocalPlaneResolutionUnit"
+	SubjectLocation            FieldName = "SubjectLocation"
+	ExposureIndex              FieldName = "ExposureIndex"
+	SensingMethod              FieldName = "SensingMethod"
+	FileSource                 FieldName = "FileSource"
+	SceneType                  FieldName = "SceneType"
+	CFAPattern                 FieldName = "CFAPattern"
+	CustomRendered             FieldName = "CustomRendered"
+	ExposureMode               FieldName = "ExposureMode"
+	WhiteBalance               FieldName = "WhiteBalance"
+	DigitalZoomRatio           FieldName = "DigitalZoomRatio"
+	FocalLengthIn35mmFilm      FieldName = "FocalLengthIn35mmFilm"
+	SceneCaptureType           FieldName = "SceneCaptureType"
+	GainControl                FieldName = "GainControl"
+	Contrast                   FieldName = "Contrast"
+	Saturation                 FieldName = "Saturation"
+	Sharpness                  FieldName = "Sharpness"
+	DeviceSettingDescription   FieldName = "DeviceSettingDescription"
+	SubjectDistanceRange       FieldName = "SubjectDistanceRange"
+	LensMake                   FieldName = "LensMake"
+	LensModel                  FieldName = "LensModel"
 )
 
 // thumbnail fields
 const (
-	ThumbJPEGInterchangeFormat       = "ThumbJPEGInterchangeFormat"       // offset to thumb jpeg SOI
-	ThumbJPEGInterchangeFormatLength = "ThumbJPEGInterchangeFormatLength" // byte length of thumb
+	ThumbJPEGInterchangeFormat       FieldName = "ThumbJPEGInterchangeFormat"       // offset to thumb jpeg SOI
+	ThumbJPEGInterchangeFormatLength FieldName = "ThumbJPEGInterchangeFormatLength" // byte length of thumb
 )
 
 // GPS fields
 const (
 	GPSVersionID        FieldName = "GPSVersionID"
-	GPSLatitudeRef                = "GPSLatitudeRef"
-	GPSLatitude                   = "GPSLatitude"
-	GPSLongitudeRef               = "GPSLongitudeRef"
-	GPSLongitude                  = "GPSLongitude"
-	GPSAltitudeRef                = "GPSAltitudeRef"
-	GPSAltitude                   = "GPSAltitude"
-	GPSTimeStamp                  = "GPSTimeStamp"
-	GPSSatelites                  = "GPSSatelites"
-	GPSStatus                     = "GPSStatus"
-	GPSMeasureMode                = "GPSMeasureMode"
-	GPSDOP                        = "GPSDOP"
-	GPSSpeedRef                   = "GPSSpeedRef"
-	GPSSpeed                      = "GPSSpeed"
-	GPSTrackRef                   = "GPSTrackRef"
-	GPSTrack                      = "GPSTrack"
-	GPSImgDirectionRef            = "GPSImgDirectionRef"
-	GPSImgDirection               = "GPSImgDirection"
-	GPSMapDatum                   = "GPSMapDatum"
-	GPSDestLatitudeRef            = "GPSDestLatitudeRef"
-	GPSDestLatitude               = "GPSDestLatitude"
-	GPSDestLongitudeRef           = "GPSDestLongitudeRef"
-	GPSDestLongitude              = "GPSDestLongitude"
-	GPSDestBearingRef             = "GPSDestBearingRef"
-	GPSDestBearing                = "GPSDestBearing"
-	GPSDestDistanceRef            = "GPSDestDistanceRef"
-	GPSDestDistance               = "GPSDestDistance"
-	GPSProcessingMethod           = "GPSProcessingMethod"
-	GPSAreaInformation            = "GPSAreaInformation"
-	GPSDateStamp                  = "GPSDateStamp"
-	GPSDifferential               = "GPSDifferential"
+	GPSLatitudeRef      FieldName = "GPSLatitudeRef"
+	GPSLatitude         FieldName = "GPSLatitude"
+	GPSLongitudeRef     FieldName = "GPSLongitudeRef"
+	GPSLongitude        FieldName = "GPSLongitude"
+	GPSAltitudeRef      FieldName = "GPSAltitudeRef"
+	GPSAltitude         FieldName = "GPSAltitude"
+	GPSTimeStamp        FieldName = "GPSTimeStamp"
+	GPSSatelites        FieldName = "GPSSatelites"
+	GPSStatus           FieldName = "GPSStatus"
+	GPSMeasureMode      FieldName = "GPSMeasureMode"
+	GPSDOP              FieldName = "GPSDOP"
+	GPSSpeedRef         FieldName = "GPSSpeedRef"
+	GPSSpeed            FieldName = "GPSSpeed"
+	GPSTrackRef         FieldName = "GPSTrackRef"
+	GPSTrack            FieldName = "GPSTrack"
+	GPSImgDirectionRef  FieldName = "GPSImgDirectionRef"
+	GPSImgDirection     FieldName = "GPSImgDirection"
+	GPSMapDatum         FieldName = "GPSMapDatum"
+	GPSDestLatitudeRef  FieldName = "GPSDestLatitudeRef"
+	GPSDestLatitude     FieldName = "GPSDestLatitude"
+	GPSDestLongitudeRef FieldName = "GPSDestLongitudeRef"
+	GPSDestLongitude    FieldName = "GPSDestLongitude"
+	GPSDestBearingRef   FieldName = "GPSDestBearingRef"
+	GPSDestBearing      FieldName = "GPSDestBearing"
+	GPSDestDistanceRef  FieldName = "GPSDestDistanceRef"
+	GPSDestDistance     FieldName = "GPSDestDistance"
+	GPSProcessingMethod FieldName = "GPSProcessingMethod"
+	GPSAreaInformation  FieldName = "GPSAreaInformation"
+	GPSDateStamp        FieldName = "GPSDateStamp"
+	GPSDifferential     FieldName = "GPSDifferential"
 )
 
 // interoperability fields
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/regress_expected_test.go b/vendor/github.com/rwcarlsen/goexif/exif/regress_expected_test.go
deleted file mode 100644
index bf3998189..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/regress_expected_test.go
+++ /dev/null
@@ -1,2293 +0,0 @@
-package exif
-
-var regressExpected = map[string]map[FieldName]string{
-	"2004-01-11-22-45-15-sep-2004-01-11-22-45-15a.jpg": map[FieldName]string{
-		PixelXDimension:            `1600`,
-		InteroperabilityIFDPointer: `1009`,
-		SceneType:                  `""`,
-		InteroperabilityIndex:      `"R98"`,
-		Make:                       `"Samsung Techwin"`,
-		DateTimeOriginal:           `"2004:01:11 22:45:15"`,
-		DateTimeDigitized:          `"2004:01:11 22:45:15"`,
-		ImageDescription:           `"SAMSUNG DIGITAL CAMERA         "`,
-		ExifVersion:                `"0220"`,
-		MeteringMode:               `2`,
-		Flash:                      `1`,
-		Orientation:                `1`,
-		ResolutionUnit:             `2`,
-		YCbCrPositioning:           `2`,
-		FlashpixVersion:            `"0100"`,
-		YResolution:                `"72/1"`,
-		ThumbJPEGInterchangeFormat: `1039`,
-		MaxApertureValue:           `"32/10"`,
-		ExposureProgram:            `2`,
-		Software:                   `"M5011S-1031"`,
-		DateTime:                   `"2004:01:11 22:45:19"`,
-		FNumber:                    `"320/100"`,
-		ISOSpeedRatings:            `150`,
-		ComponentsConfiguration:    `""`,
-		CompressedBitsPerPixel:     `"2/1"`,
-		RelatedSoundFile:           `""`,
-		XResolution:                `"72/1"`,
-		ExifIFDPointer:             `251`,
-		ExposureTime:               `"1000/30000"`,
-		LightSource:                `0`,
-		FocalLength:                `"82/11"`,
-		ColorSpace:                 `1`,
-		PixelYDimension:            `1200`,
-		FileSource:                 `""`,
-		Model:                      `"U-CA 501"`,
-		ThumbJPEGInterchangeFormatLength: `3530`,
-		ExposureBiasValue:                `"95/10"`,
-	},
-	"2006-08-03-16-29-38-sep-2006-08-03-16-29-38a.jpg": map[FieldName]string{
-		ThumbJPEGInterchangeFormat:       `5108`,
-		ThumbJPEGInterchangeFormatLength: `4323`,
-		MaxApertureValue:                 `"95/32"`,
-		ResolutionUnit:                   `2`,
-		YCbCrPositioning:                 `1`,
-		ExifIFDPointer:                   `196`,
-		ExposureTime:                     `"1/1500"`,
-		InteroperabilityIndex:            `"R98"`,
-		FocalPlaneXResolution:            `"2816000/225"`,
-		YResolution:                      `"180/1"`,
-		DateTime:                         `"2006:08:03 16:29:38"`,
-		ShutterSpeedValue:                `"338/32"`,
-		ApertureValue:                    `"95/32"`,
-		FocalLength:                      `"5800/1000"`,
-		FlashpixVersion:                  `"0100"`,
-		Make:                             `"Canon"`,
-		DateTimeOriginal:                 `"2006:08:03 16:29:38"`,
-		ComponentsConfiguration:          `""`,
-		InteroperabilityIFDPointer:       `2824`,
-		ExposureMode:                     `0`,
-		SceneCaptureType:                 `0`,
-		FNumber:                          `"28/10"`,
-		ColorSpace:                       `1`,
-		FileSource:                       `""`,
-		WhiteBalance:                     `0`,
-		SensingMethod:                    `2`,
-		DateTimeDigitized:                `"2006:08:03 16:29:38"`,
-		CompressedBitsPerPixel:           `"5/1"`,
-		MeteringMode:                     `5`,
-		MakerNote:                        `""`,
-		UserComment:                      `""`,
-		PixelXDimension:                  `2816`,
-		Model:                            `"Canon PowerShot SD600"`,
-		ExposureBiasValue:                `"0/3"`,
-		PixelYDimension:                  `2112`,
-		FocalPlaneResolutionUnit:         `2`,
-		DigitalZoomRatio:                 `"2816/2816"`,
-		Orientation:                      `6`,
-		XResolution:                      `"180/1"`,
-		ExifVersion:                      `"0220"`,
-		Flash:                            `24`,
-		FocalPlaneYResolution: `"2112000/169"`,
-		CustomRendered:        `0`,
-	},
-	"2006-11-11-19-17-56-sep-2006-11-11-19-17-56a.jpg": map[FieldName]string{
-		FNumber:                 `"28/10"`,
-		ExposureProgram:         `2`,
-		Software:                `"E3200v1.1"`,
-		DateTime:                `"2006:11:11 19:17:56"`,
-		ExposureTime:            `"10/601"`,
-		ISOSpeedRatings:         `50`,
-		ComponentsConfiguration: `""`,
-		CompressedBitsPerPixel:  `"4/1"`,
-		Saturation:              `0`,
-		XResolution:             `"300/1"`,
-		ExifIFDPointer:          `284`,
-		ExposureBiasValue:       `"0/10"`,
-		LightSource:             `0`,
-		FocalLength:             `"58/10"`,
-		ColorSpace:              `1`,
-		PixelYDimension:         `1536`,
-		FileSource:              `""`,
-		Model:                   `"E3200"`,
-		ThumbJPEGInterchangeFormatLength: `4546`,
-		DateTimeDigitized:                `"2006:11:11 19:17:56"`,
-		PixelXDimension:                  `2048`,
-		InteroperabilityIFDPointer:       `1026`,
-		SceneType:                        `""`,
-		DigitalZoomRatio:                 `"0/100"`,
-		GainControl:                      `0`,
-		Make:                             `"NIKON"`,
-		DateTimeOriginal:                 `"2006:11:11 19:17:56"`,
-		InteroperabilityIndex:            `"R98"`,
-		ImageDescription:                 `"          "`,
-		Sharpness:                        `0`,
-		YCbCrPositioning:                 `2`,
-		ExifVersion:                      `"0220"`,
-		MeteringMode:                     `5`,
-		Flash:                            `25`,
-		FocalLengthIn35mmFilm:      `38`,
-		SubjectDistanceRange:       `0`,
-		Orientation:                `1`,
-		ResolutionUnit:             `2`,
-		MaxApertureValue:           `"30/10"`,
-		FlashpixVersion:            `"0100"`,
-		WhiteBalance:               `0`,
-		YResolution:                `"300/1"`,
-		ThumbJPEGInterchangeFormat: `4596`,
-		CustomRendered:             `1`,
-		ExposureMode:               `0`,
-		SceneCaptureType:           `0`,
-		Contrast:                   `0`,
-		MakerNote:                  `""`,
-		UserComment:                `"                                                                                                                     "`,
-	},
-	"2006-12-10-23-58-20-sep-2006-12-10-23-58-20a.jpg": map[FieldName]string{
-		Model:                    `"Canon PowerShot A80"`,
-		ExposureBiasValue:        `"0/3"`,
-		PixelYDimension:          `1704`,
-		FocalPlaneResolutionUnit: `2`,
-		FocalPlaneYResolution:    `"1704000/210"`,
-		CustomRendered:           `0`,
-		DigitalZoomRatio:         `"2272/2272"`,
-		Orientation:              `1`,
-		XResolution:              `"180/1"`,
-		ExifVersion:              `"0220"`,
-		Flash:                    `24`,
-		ThumbJPEGInterchangeFormat:       `2036`,
-		ThumbJPEGInterchangeFormatLength: `6465`,
-		MaxApertureValue:                 `"95/32"`,
-		InteroperabilityIndex:            `"R98"`,
-		ResolutionUnit:                   `2`,
-		YCbCrPositioning:                 `1`,
-		ExifIFDPointer:                   `196`,
-		ExposureTime:                     `"1/80"`,
-		FocalLength:                      `"250/32"`,
-		FlashpixVersion:                  `"0100"`,
-		FocalPlaneXResolution:            `"2272000/280"`,
-		YResolution:                      `"180/1"`,
-		DateTime:                         `"2006:12:10 23:58:20"`,
-		ShutterSpeedValue:                `"202/32"`,
-		ApertureValue:                    `"95/32"`,
-		ExposureMode:                     `0`,
-		SceneCaptureType:                 `0`,
-		Make:                             `"Canon"`,
-		DateTimeOriginal:                 `"2006:12:10 23:58:20"`,
-		ComponentsConfiguration:          `""`,
-		InteroperabilityIFDPointer:       `1844`,
-		FNumber:                          `"28/10"`,
-		ColorSpace:                       `1`,
-		FileSource:                       `""`,
-		WhiteBalance:                     `0`,
-		UserComment:                      `""`,
-		PixelXDimension:                  `2272`,
-		SensingMethod:                    `2`,
-		DateTimeDigitized:                `"2006:12:10 23:58:20"`,
-		CompressedBitsPerPixel:           `"3/1"`,
-		MeteringMode:                     `5`,
-		MakerNote:                        `""`,
-	},
-	"2006-12-17-07-09-14-sep-2006-12-17-07-09-14a.jpg": map[FieldName]string{
-		WhiteBalance:                     `0`,
-		YResolution:                      `"72/1"`,
-		ThumbJPEGInterchangeFormatLength: `7063`,
-		ExposureBiasValue:                `"0/10"`,
-		FlashpixVersion:                  `"0100"`,
-		PixelYDimension:                  `1536`,
-		ExposureMode:                     `0`,
-		InteroperabilityIndex:            `"R98"`,
-		Make:                       `"PENTAX Corporation"`,
-		DateTimeDigitized:          `"2006:12:17 07:09:14"`,
-		PixelXDimension:            `2048`,
-		InteroperabilityIFDPointer: `31048`,
-		CustomRendered:             `0`,
-		DateTime:                   `"2006:12:17 07:09:14"`,
-		ExposureProgram:            `2`,
-		FocalLengthIn35mmFilm:      `38`,
-		Saturation:                 `0`,
-		XResolution:                `"72/1"`,
-		ISOSpeedRatings:            `64`,
-		ExifVersion:                `"0220"`,
-		CompressedBitsPerPixel:     `"5725504/3145728"`,
-		Flash: `24`,
-		Model: `"PENTAX Optio S6"`,
-		ThumbJPEGInterchangeFormat: `31172`,
-		MaxApertureValue:           `"27/10"`,
-		FocalLength:                `"62/10"`,
-		ColorSpace:                 `1`,
-		DateTimeOriginal:           `"2006:12:17 07:09:14"`,
-		MakerNote:                  `""`,
-		DigitalZoomRatio:           `"100/100"`,
-		SceneCaptureType:           `0`,
-		Contrast:                   `0`,
-		Software:                   `"Optio S6 Ver 1.00"`,
-		FNumber:                    `"270/100"`,
-		Sharpness:                  `0`,
-		ComponentsConfiguration:    `""`,
-		MeteringMode:               `5`,
-		SubjectDistanceRange:       `2`,
-		Orientation:                `1`,
-		ResolutionUnit:             `2`,
-		YCbCrPositioning:           `2`,
-		ExifIFDPointer:             `586`,
-		ExposureTime:               `"1/160"`,
-	},
-	"2006-12-21-15-55-26-sep-2006-12-21-15-55-26a.jpg": map[FieldName]string{
-		DateTimeDigitized:                `"2006:12:21 15:55:26"`,
-		CompressedBitsPerPixel:           `"8/1"`,
-		MeteringMode:                     `3`,
-		MakerNote:                        `""`,
-		PixelXDimension:                  `2592`,
-		Saturation:                       `0`,
-		ImageDescription:                 `"                               "`,
-		Model:                            `"DSC-W15"`,
-		ExposureBiasValue:                `"-20/10"`,
-		PixelYDimension:                  `1944`,
-		Orientation:                      `1`,
-		XResolution:                      `"72/1"`,
-		ISOSpeedRatings:                  `100`,
-		ExifVersion:                      `"0220"`,
-		Flash:                            `79`,
-		CustomRendered:                   `0`,
-		ThumbJPEGInterchangeFormat:       `2484`,
-		ThumbJPEGInterchangeFormatLength: `13571`,
-		ExposureProgram:                  `2`,
-		MaxApertureValue:                 `"48/16"`,
-		ResolutionUnit:                   `2`,
-		YCbCrPositioning:                 `2`,
-		ExifIFDPointer:                   `256`,
-		ExposureTime:                     `"10/400"`,
-		SceneType:                        `""`,
-		InteroperabilityIndex:            `"R98"`,
-		YResolution:                      `"72/1"`,
-		DateTime:                         `"2006:12:21 15:55:26"`,
-		LightSource:                      `0`,
-		FocalLength:                      `"79/10"`,
-		FlashpixVersion:                  `"0100"`,
-		Contrast:                         `0`,
-		Make:                             `"SONY"`,
-		DateTimeOriginal:                 `"2006:12:21 15:55:26"`,
-		ComponentsConfiguration:          `""`,
-		InteroperabilityIFDPointer:       `2278`,
-		ExposureMode:                     `1`,
-		SceneCaptureType:                 `0`,
-		FNumber:                          `"28/10"`,
-		ColorSpace:                       `1`,
-		FileSource:                       `""`,
-		WhiteBalance:                     `0`,
-		Sharpness:                        `0`,
-	},
-	"2007-01-01-12-00-00-sep-2007-01-01-12-00-00a.jpg": map[FieldName]string{
-		MaxApertureValue:                 `"286/100"`,
-		ExposureIndex:                    `"200/1"`,
-		ThumbJPEGInterchangeFormat:       `13848`,
-		ThumbJPEGInterchangeFormatLength: `3436`,
-		ExposureProgram:                  `2`,
-		ExposureTime:                     `"8942/1000000"`,
-		SceneType:                        `""`,
-		InteroperabilityIndex:            `"R98"`,
-		ResolutionUnit:                   `2`,
-		YCbCrPositioning:                 `2`,
-		ExifIFDPointer:                   `340`,
-		ApertureValue:                    `"286/100"`,
-		LightSource:                      `0`,
-		FocalLength:                      `"60/10"`,
-		FlashpixVersion:                  `"0100"`,
-		YResolution:                      `"480/1"`,
-		Software:                         `"KODAK EASYSHARE C713 ZOOM DIGITAL CAMERA"`,
-		ShutterSpeedValue:                `"680/100"`,
-		InteroperabilityIFDPointer:       `13816`,
-		ExposureMode:                     `0`,
-		FocalLengthIn35mmFilm:            `36`,
-		SceneCaptureType:                 `0`,
-		Contrast:                         `0`,
-		Make:                             `"EASTMAN KODAK COMPANY"`,
-		DateTimeOriginal:                 `"2007:01:01 12:00:00"`,
-		ComponentsConfiguration:          `""`,
-		WhiteBalance:                     `0`,
-		Sharpness:                        `0`,
-		FNumber:                          `"270/100"`,
-		ColorSpace:                       `1`,
-		FileSource:                       `""`,
-		PixelXDimension:                  `1280`,
-		SensingMethod:                    `2`,
-		GainControl:                      `2`,
-		Saturation:                       `0`,
-		SubjectDistanceRange:             `0`,
-		DateTimeDigitized:                `"2007:01:01 12:00:00"`,
-		MeteringMode:                     `5`,
-		MakerNote:                        `""`,
-		Model:                            `"KODAK EASYSHARE C713 ZOOM DIGITAL CAMERA"`,
-		ExposureBiasValue:                `"0/10"`,
-		PixelYDimension:                  `960`,
-		ExifVersion:                      `"0221"`,
-		Flash:                            `25`,
-		CustomRendered:                   `0`,
-		DigitalZoomRatio:                 `"0/10"`,
-		Orientation:                      `1`,
-		XResolution:                      `"480/1"`,
-		ISOSpeedRatings:                  `200`,
-	},
-	"2007-01-17-21-49-44-sep-2007-01-17-21-49-44a.jpg": map[FieldName]string{
-		XResolution:                      `"180/1"`,
-		ISOSpeedRatings:                  `50`,
-		ExifVersion:                      `"0220"`,
-		Flash:                            `24`,
-		CustomRendered:                   `0`,
-		Orientation:                      `1`,
-		ThumbJPEGInterchangeFormatLength: `7024`,
-		ExposureProgram:                  `2`,
-		MaxApertureValue:                 `"297/100"`,
-		ThumbJPEGInterchangeFormat:       `956`,
-		YCbCrPositioning:                 `2`,
-		ExifIFDPointer:                   `266`,
-		ExposureTime:                     `"1/30"`,
-		InteroperabilityIndex:            `"R98"`,
-		ResolutionUnit:                   `2`,
-		Software:                         `"1.00.018PR         "`,
-		DateTime:                         `"2007:01:17 21:49:44"`,
-		ShutterSpeedValue:                `"491/100"`,
-		ApertureValue:                    `"33/10"`,
-		LightSource:                      `0`,
-		FocalLength:                      `"73/10"`,
-		FlashpixVersion:                  `"0100"`,
-		YResolution:                      `"180/1"`,
-		DateTimeOriginal:                 `"2007:01:17 21:49:44"`,
-		ComponentsConfiguration:          `""`,
-		InteroperabilityIFDPointer:       `832`,
-		ExposureMode:                     `0`,
-		SceneCaptureType:                 `0`,
-		Make:                             `"Digital Camera                 "`,
-		ColorSpace:                       `1`,
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deleted file mode 100644
index 6f3be2480..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/2004-01-11-22-45-15-sep-2004-01-11-22-45-15a.jpg
+++ /dev/null
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deleted file mode 100644
index 39891df84..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/2006-08-03-16-29-38-sep-2006-08-03-16-29-38a.jpg
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deleted file mode 100644
index 4721e7542..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/2006-11-11-19-17-56-sep-2006-11-11-19-17-56a.jpg
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deleted file mode 100644
index 8c0997ea0..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/2006-12-10-23-58-20-sep-2006-12-10-23-58-20a.jpg
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deleted file mode 100644
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--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/2006-12-17-07-09-14-sep-2006-12-17-07-09-14a.jpg
+++ /dev/null
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deleted file mode 100644
index 8aaf632be..000000000
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--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/f6-exif.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/samples/f7-exif.jpg b/vendor/github.com/rwcarlsen/goexif/exif/samples/f7-exif.jpg
deleted file mode 100644
index b5dddea44..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/f7-exif.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/samples/f8-exif.jpg b/vendor/github.com/rwcarlsen/goexif/exif/samples/f8-exif.jpg
deleted file mode 100644
index fb050fc6d..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/f8-exif.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/samples/geodegrees_as_string.jpg b/vendor/github.com/rwcarlsen/goexif/exif/samples/geodegrees_as_string.jpg
deleted file mode 100644
index 280a70ec4..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/geodegrees_as_string.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exif/samples/has-lens-info.jpg b/vendor/github.com/rwcarlsen/goexif/exif/samples/has-lens-info.jpg
deleted file mode 100644
index 57757da33..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exif/samples/has-lens-info.jpg
+++ /dev/null
diff --git a/vendor/github.com/rwcarlsen/goexif/exifstat/main.go b/vendor/github.com/rwcarlsen/goexif/exifstat/main.go
deleted file mode 100644
index 0b383c9d5..000000000
--- a/vendor/github.com/rwcarlsen/goexif/exifstat/main.go
+++ /dev/null
@@ -1,60 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"log"
-	"os"
-
-	"github.com/rwcarlsen/goexif/exif"
-	"github.com/rwcarlsen/goexif/mknote"
-	"github.com/rwcarlsen/goexif/tiff"
-)
-
-var mnote = flag.Bool("mknote", false, "try to parse makernote data")
-var thumb = flag.Bool("thumb", false, "dump thumbail data to stdout (for first listed image file)")
-
-func main() {
-	flag.Parse()
-	fnames := flag.Args()
-
-	if *mnote {
-		exif.RegisterParsers(mknote.All...)
-	}
-
-	for _, name := range fnames {
-		f, err := os.Open(name)
-		if err != nil {
-			log.Printf("err on %v: %v", name, err)
-			continue
-		}
-
-		x, err := exif.Decode(f)
-		if err != nil {
-			log.Printf("err on %v: %v", name, err)
-			continue
-		}
-
-		if *thumb {
-			data, err := x.JpegThumbnail()
-			if err != nil {
-				log.Fatal("no thumbnail present")
-			}
-			if _, err := os.Stdout.Write(data); err != nil {
-				log.Fatal(err)
-			}
-			return
-		}
-
-		fmt.Printf("\n---- Image '%v' ----\n", name)
-		x.Walk(Walker{})
-	}
-}
-
-type Walker struct{}
-
-func (_ Walker) Walk(name exif.FieldName, tag *tiff.Tag) error {
-	data, _ := tag.MarshalJSON()
-	fmt.Printf("    %v: %v\n", name, string(data))
-	return nil
-}
diff --git a/vendor/github.com/rwcarlsen/goexif/mknote/fields.go b/vendor/github.com/rwcarlsen/goexif/mknote/fields.go
deleted file mode 100644
index e67d11c20..000000000
--- a/vendor/github.com/rwcarlsen/goexif/mknote/fields.go
+++ /dev/null
@@ -1,268 +0,0 @@
-package mknote
-
-import "github.com/rwcarlsen/goexif/exif"
-
-// Useful resources used in creating these tables:
-//    http://www.exiv2.org/makernote.html
-//    http://www.exiv2.org/tags-canon.html
-//    http://www.exiv2.org/tags-nikon.html
-
-// Known Maker Note fields
-const (
-	// common fields
-	ISOSpeed                   exif.FieldName = "ISOSpeed"
-	ColorMode                                 = "ColorMode"
-	Quality                                   = "Quality"
-	Sharpening                                = "Sharpening"
-	Focus                                     = "Focus"
-	FlashSetting                              = "FlashSetting"
-	FlashDevice                               = "FlashDevice"
-	WhiteBalanceBias                          = "WhiteBalanceBias"
-	WB_RBLevels                               = "WB_RBLevels"
-	ProgramShift                              = "ProgramShift"
-	ExposureDiff                              = "ExposureDiff"
-	ISOSelection                              = "ISOSelection"
-	DataDump                                  = "DataDump"
-	Preview                                   = "Preview"
-	FlashComp                                 = "FlashComp"
-	ISOSettings                               = "ISOSettings"
-	ImageBoundary                             = "ImageBoundary"
-	FlashExposureComp                         = "FlashExposureComp"
-	FlashBracketComp                          = "FlashBracketComp"
-	ExposureBracketComp                       = "ExposureBracketComp"
-	ImageProcessing                           = "ImageProcessing"
-	CropHiSpeed                               = "CropHiSpeed"
-	ExposureTuning                            = "ExposureTuning"
-	SerialNumber                              = "SerialNumber"
-	ImageAuthentication                       = "ImageAuthentication"
-	ActiveDLighting                           = "ActiveDLighting"
-	VignetteControl                           = "VignetteControl"
-	ImageAdjustment                           = "ImageAdjustment"
-	ToneComp                                  = "ToneComp"
-	AuxiliaryLens                             = "AuxiliaryLens"
-	LensType                                  = "LensType"
-	Lens                                      = "Lens"
-	FocusDistance                             = "FocusDistance"
-	DigitalZoom                               = "DigitalZoom"
-	FlashMode                                 = "FlashMode"
-	ShootingMode                              = "ShootingMode"
-	AutoBracketRelease                        = "AutoBracketRelease"
-	LensFStops                                = "LensFStops"
-	ContrastCurve                             = "ContrastCurve"
-	ColorHue                                  = "ColorHue"
-	SceneMode                                 = "SceneMode"
-	HueAdjustment                             = "HueAdjustment"
-	NEFCompression                            = "NEFCompression"
-	NoiseReduction                            = "NoiseReduction"
-	LinearizationTable                        = "LinearizationTable"
-	RawImageCenter                            = "RawImageCenter"
-	SensorPixelSize                           = "SensorPixelSize"
-	SceneAssist                               = "SceneAssist"
-	RetouchHistory                            = "RetouchHistory"
-	ImageDataSize                             = "ImageDataSize"
-	ImageCount                                = "ImageCount"
-	DeletedImageCount                         = "DeletedImageCount"
-	ShutterCount                              = "ShutterCount"
-	ImageOptimization                         = "ImageOptimization"
-	SaturationText                            = "SaturationText"
-	VariProgram                               = "VariProgram"
-	ImageStabilization                        = "ImageStabilization"
-	AFResponse                                = "AFResponse"
-	HighISONoiseReduction                     = "HighISONoiseReduction"
-	ToningEffect                              = "ToningEffect"
-	PrintIM                                   = "PrintIM"
-	CaptureData                               = "CaptureData"
-	CaptureVersion                            = "CaptureVersion"
-	CaptureOffsets                            = "CaptureOffsets"
-	ScanIFD                                   = "ScanIFD"
-	ICCProfile                                = "ICCProfile"
-	CaptureOutput                             = "CaptureOutput"
-	Panorama                                  = "Panorama"
-	ImageType                                 = "ImageType"
-	FirmwareVersion                           = "FirmwareVersion"
-	FileNumber                                = "FileNumber"
-	OwnerName                                 = "OwnerName"
-	CameraInfo                                = "CameraInfo"
-	CustomFunctions                           = "CustomFunctions"
-	ModelID                                   = "ModelID"
-	PictureInfo                               = "PictureInfo"
-	ThumbnailImageValidArea                   = "ThumbnailImageValidArea"
-	SerialNumberFormat                        = "SerialNumberFormat"
-	SuperMacro                                = "SuperMacro"
-	OriginalDecisionDataOffset                = "OriginalDecisionDataOffset"
-	WhiteBalanceTable                         = "WhiteBalanceTable"
-	LensModel                                 = "LensModel"
-	InternalSerialNumber                      = "InternalSerialNumber"
-	DustRemovalData                           = "DustRemovalData"
-	ProcessingInfo                            = "ProcessingInfo"
-	MeasuredColor                             = "MeasuredColor"
-	VRDOffset                                 = "VRDOffset"
-	SensorInfo                                = "SensorInfo"
-	ColorData                                 = "ColorData"
-
-	// Nikon-specific fields
-	Nikon_Version        = "Nikon.Version"
-	Nikon_WhiteBalance   = "Nikon.WhiteBalance"
-	Nikon_ColorSpace     = "Nikon.ColorSpace"
-	Nikon_LightSource    = "Nikon.LightSource"
-	Nikon_Saturation     = "Nikon_Saturation"
-	Nikon_ShotInfo       = "Nikon.ShotInfo"       // A sub-IFD
-	Nikon_VRInfo         = "Nikon.VRInfo"         // A sub-IFD
-	Nikon_PictureControl = "Nikon.PictureControl" // A sub-IFD
-	Nikon_WorldTime      = "Nikon.WorldTime"      // A sub-IFD
-	Nikon_ISOInfo        = "Nikon.ISOInfo"        // A sub-IFD
-	Nikon_AFInfo         = "Nikon.AFInfo"         // A sub-IFD
-	Nikon_ColorBalance   = "Nikon.ColorBalance"   // A sub-IFD
-	Nikon_LensData       = "Nikon.LensData"       // A sub-IFD
-	Nikon_SerialNO       = "Nikon.SerialNO"       // usually starts with "NO="
-	Nikon_FlashInfo      = "Nikon.FlashInfo"      // A sub-IFD
-	Nikon_MultiExposure  = "Nikon.MultiExposure"  // A sub-IFD
-	Nikon_AFInfo2        = "Nikon.AFInfo2"        // A sub-IFD
-	Nikon_FileInfo       = "Nikon.FileInfo"       // A sub-IFD
-	Nikon_AFTune         = "Nikon.AFTune"         // A sub-IFD
-	Nikon3_0x000a        = "Nikon3.0x000a"
-	Nikon3_0x009b        = "Nikon3.0x009b"
-	Nikon3_0x009f        = "Nikon3.0x009f"
-	Nikon3_0x00a3        = "Nikon3.0x00a3"
-
-	// Canon-specific fiends
-	Canon_CameraSettings = "Canon.CameraSettings" // A sub-IFD
-	Canon_ShotInfo       = "Canon.ShotInfo"       // A sub-IFD
-	Canon_AFInfo         = "Canon.AFInfo"
-	Canon_0x0000         = "Canon.0x0000"
-	Canon_0x0003         = "Canon.0x0003"
-	Canon_0x00b5         = "Canon.0x00b5"
-	Canon_0x00c0         = "Canon.0x00c0"
-	Canon_0x00c1         = "Canon.0x00c1"
-)
-
-var makerNoteCanonFields = map[uint16]exif.FieldName{
-	0x0000: Canon_0x0000,
-	0x0001: Canon_CameraSettings,
-	0x0002: exif.FocalLength,
-	0x0003: Canon_0x0003,
-	0x0004: Canon_ShotInfo,
-	0x0005: Panorama,
-	0x0006: ImageType,
-	0x0007: FirmwareVersion,
-	0x0008: FileNumber,
-	0x0009: OwnerName,
-	0x000c: SerialNumber,
-	0x000d: CameraInfo,
-	0x000f: CustomFunctions,
-	0x0010: ModelID,
-	0x0012: PictureInfo,
-	0x0013: ThumbnailImageValidArea,
-	0x0015: SerialNumberFormat,
-	0x001a: SuperMacro,
-	0x0026: Canon_AFInfo,
-	0x0083: OriginalDecisionDataOffset,
-	0x00a4: WhiteBalanceTable,
-	0x0095: LensModel,
-	0x0096: InternalSerialNumber,
-	0x0097: DustRemovalData,
-	0x0099: CustomFunctions,
-	0x00a0: ProcessingInfo,
-	0x00aa: MeasuredColor,
-	0x00b4: exif.ColorSpace,
-	0x00b5: Canon_0x00b5,
-	0x00c0: Canon_0x00c0,
-	0x00c1: Canon_0x00c1,
-	0x00d0: VRDOffset,
-	0x00e0: SensorInfo,
-	0x4001: ColorData,
-}
-
-// Nikon version 3 Maker Notes fields (used by E5400, SQ, D2H, D70, and newer)
-var makerNoteNikon3Fields = map[uint16]exif.FieldName{
-	0x0001: Nikon_Version,
-	0x0002: ISOSpeed,
-	0x0003: ColorMode,
-	0x0004: Quality,
-	0x0005: Nikon_WhiteBalance,
-	0x0006: Sharpening,
-	0x0007: Focus,
-	0x0008: FlashSetting,
-	0x0009: FlashDevice,
-	0x000a: Nikon3_0x000a,
-	0x000b: WhiteBalanceBias,
-	0x000c: WB_RBLevels,
-	0x000d: ProgramShift,
-	0x000e: ExposureDiff,
-	0x000f: ISOSelection,
-	0x0010: DataDump,
-	0x0011: Preview,
-	0x0012: FlashComp,
-	0x0013: ISOSettings,
-	0x0016: ImageBoundary,
-	0x0017: FlashExposureComp,
-	0x0018: FlashBracketComp,
-	0x0019: ExposureBracketComp,
-	0x001a: ImageProcessing,
-	0x001b: CropHiSpeed,
-	0x001c: ExposureTuning,
-	0x001d: SerialNumber,
-	0x001e: Nikon_ColorSpace,
-	0x001f: Nikon_VRInfo,
-	0x0020: ImageAuthentication,
-	0x0022: ActiveDLighting,
-	0x0023: Nikon_PictureControl,
-	0x0024: Nikon_WorldTime,
-	0x0025: Nikon_ISOInfo,
-	0x002a: VignetteControl,
-	0x0080: ImageAdjustment,
-	0x0081: ToneComp,
-	0x0082: AuxiliaryLens,
-	0x0083: LensType,
-	0x0084: Lens,
-	0x0085: FocusDistance,
-	0x0086: DigitalZoom,
-	0x0087: FlashMode,
-	0x0088: Nikon_AFInfo,
-	0x0089: ShootingMode,
-	0x008a: AutoBracketRelease,
-	0x008b: LensFStops,
-	0x008c: ContrastCurve,
-	0x008d: ColorHue,
-	0x008f: SceneMode,
-	0x0090: Nikon_LightSource,
-	0x0091: Nikon_ShotInfo,
-	0x0092: HueAdjustment,
-	0x0093: NEFCompression,
-	0x0094: Nikon_Saturation,
-	0x0095: NoiseReduction,
-	0x0096: LinearizationTable,
-	0x0097: Nikon_ColorBalance,
-	0x0098: Nikon_LensData,
-	0x0099: RawImageCenter,
-	0x009a: SensorPixelSize,
-	0x009b: Nikon3_0x009b,
-	0x009c: SceneAssist,
-	0x009e: RetouchHistory,
-	0x009f: Nikon3_0x009f,
-	0x00a0: Nikon_SerialNO,
-	0x00a2: ImageDataSize,
-	0x00a3: Nikon3_0x00a3,
-	0x00a5: ImageCount,
-	0x00a6: DeletedImageCount,
-	0x00a7: ShutterCount,
-	0x00a8: Nikon_FlashInfo,
-	0x00a9: ImageOptimization,
-	0x00aa: SaturationText,
-	0x00ab: VariProgram,
-	0x00ac: ImageStabilization,
-	0x00ad: AFResponse,
-	0x00b0: Nikon_MultiExposure,
-	0x00b1: HighISONoiseReduction,
-	0x00b3: ToningEffect,
-	0x00b7: Nikon_AFInfo2,
-	0x00b8: Nikon_FileInfo,
-	0x00b9: Nikon_AFTune,
-	0x0e00: PrintIM,
-	0x0e01: CaptureData,
-	0x0e09: CaptureVersion,
-	0x0e0e: CaptureOffsets,
-	0x0e10: ScanIFD,
-	0x0e1d: ICCProfile,
-	0x0e1e: CaptureOutput,
-}
diff --git a/vendor/github.com/rwcarlsen/goexif/mknote/mknote.go b/vendor/github.com/rwcarlsen/goexif/mknote/mknote.go
deleted file mode 100644
index 1e6021621..000000000
--- a/vendor/github.com/rwcarlsen/goexif/mknote/mknote.go
+++ /dev/null
@@ -1,70 +0,0 @@
-// Package mknote provides makernote parsers that can be used with goexif/exif.
-package mknote
-
-import (
-	"bytes"
-
-	"github.com/rwcarlsen/goexif/exif"
-	"github.com/rwcarlsen/goexif/tiff"
-)
-
-var (
-	// Canon is an exif.Parser for canon makernote data.
-	Canon = &canon{}
-	// NikonV3 is an exif.Parser for nikon makernote data.
-	NikonV3 = &nikonV3{}
-	// All is a list of all available makernote parsers
-	All = []exif.Parser{Canon, NikonV3}
-)
-
-type canon struct{}
-
-// Parse decodes all Canon makernote data found in x and adds it to x.
-func (_ *canon) Parse(x *exif.Exif) error {
-	m, err := x.Get(exif.MakerNote)
-	if err != nil {
-		return nil
-	}
-
-	mk, err := x.Get(exif.Make)
-	if err != nil {
-		return nil
-	}
-
-	if val, err := mk.StringVal(); err != nil || val != "Canon" {
-		return nil
-	}
-
-	// Canon notes are a single IFD directory with no header.
-	// Reader offsets need to be w.r.t. the original tiff structure.
-	buf := bytes.NewReader(append(make([]byte, m.ValOffset), m.Val...))
-	buf.Seek(int64(m.ValOffset), 0)
-
-	mkNotesDir, _, err := tiff.DecodeDir(buf, x.Tiff.Order)
-	if err != nil {
-		return err
-	}
-	x.LoadTags(mkNotesDir, makerNoteCanonFields, false)
-	return nil
-}
-
-type nikonV3 struct{}
-
-// Parse decodes all Nikon makernote data found in x and adds it to x.
-func (_ *nikonV3) Parse(x *exif.Exif) error {
-	m, err := x.Get(exif.MakerNote)
-	if err != nil {
-		return nil
-	} else if bytes.Compare(m.Val[:6], []byte("Nikon\000")) != 0 {
-		return nil
-	}
-
-	// Nikon v3 maker note is a self-contained IFD (offsets are relative
-	// to the start of the maker note)
-	mkNotes, err := tiff.Decode(bytes.NewReader(m.Val[10:]))
-	if err != nil {
-		return err
-	}
-	x.LoadTags(mkNotes.Dirs[0], makerNoteNikon3Fields, false)
-	return nil
-}
diff --git a/vendor/github.com/rwcarlsen/goexif/tiff/tag.go b/vendor/github.com/rwcarlsen/goexif/tiff/tag.go
index 66b68e334..95d4b28b8 100644
--- a/vendor/github.com/rwcarlsen/goexif/tiff/tag.go
+++ b/vendor/github.com/rwcarlsen/goexif/tiff/tag.go
@@ -41,17 +41,17 @@ type DataType uint16
 
 const (
 	DTByte      DataType = 1
-	DTAscii              = 2
-	DTShort              = 3
-	DTLong               = 4
-	DTRational           = 5
-	DTSByte              = 6
-	DTUndefined          = 7
-	DTSShort             = 8
-	DTSLong              = 9
-	DTSRational          = 10
-	DTFloat              = 11
-	DTDouble             = 12
+	DTAscii     DataType = 2
+	DTShort     DataType = 3
+	DTLong      DataType = 4
+	DTRational  DataType = 5
+	DTSByte     DataType = 6
+	DTUndefined DataType = 7
+	DTSShort    DataType = 8
+	DTSLong     DataType = 9
+	DTSRational DataType = 10
+	DTFloat     DataType = 11
+	DTDouble    DataType = 12
 )
 
 var typeNames = map[DataType]string{
diff --git a/vendor/github.com/rwcarlsen/goexif/tiff/tiff_test.go b/vendor/github.com/rwcarlsen/goexif/tiff/tiff_test.go
deleted file mode 100644
index 5db348dc8..000000000
--- a/vendor/github.com/rwcarlsen/goexif/tiff/tiff_test.go
+++ /dev/null
@@ -1,235 +0,0 @@
-package tiff
-
-import (
-	"bytes"
-	"encoding/binary"
-	"encoding/hex"
-	"flag"
-	"os"
-	"path/filepath"
-	"testing"
-)
-
-var dataDir = flag.String("test_data_dir", ".", "Directory where the data files for testing are located")
-
-type input struct {
-	tgId   string
-	tpe    string
-	nVals  string
-	offset string
-	val    string
-}
-
-type output struct {
-	id    uint16
-	typ   DataType
-	count uint32
-	val   []byte
-}
-
-type tagTest struct {
-	big    input // big endian
-	little input // little endian
-	out    output
-}
-
-///////////////////////////////////////////////
-//// Big endian Tests /////////////////////////
-///////////////////////////////////////////////
-var set1 = []tagTest{
-	//////////// string type //////////////
-	tagTest{
-		//   {"TgId", "TYPE", "N-VALUES", "OFFSET--", "VAL..."},
-		input{"0003", "0002", "00000002", "11000000", ""},
-		input{"0300", "0200", "02000000", "11000000", ""},
-		output{0x0003, DataType(0x0002), 0x0002, []byte{0x11, 0x00}},
-	},
-	tagTest{
-		input{"0001", "0002", "00000006", "00000012", "111213141516"},
-		input{"0100", "0200", "06000000", "12000000", "111213141516"},
-		output{0x0001, DataType(0x0002), 0x0006, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16}},
-	},
-	//////////// int (1-byte) type ////////////////
-	tagTest{
-		input{"0001", "0001", "00000001", "11000000", ""},
-		input{"0100", "0100", "01000000", "11000000", ""},
-		output{0x0001, DataType(0x0001), 0x0001, []byte{0x11}},
-	},
-	tagTest{
-		input{"0001", "0001", "00000005", "00000010", "1112131415"},
-		input{"0100", "0100", "05000000", "10000000", "1112131415"},
-		output{0x0001, DataType(0x0001), 0x0005, []byte{0x11, 0x12, 0x13, 0x14, 0x15}},
-	},
-	tagTest{
-		input{"0001", "0006", "00000001", "11000000", ""},
-		input{"0100", "0600", "01000000", "11000000", ""},
-		output{0x0001, DataType(0x0006), 0x0001, []byte{0x11}},
-	},
-	tagTest{
-		input{"0001", "0006", "00000005", "00000010", "1112131415"},
-		input{"0100", "0600", "05000000", "10000000", "1112131415"},
-		output{0x0001, DataType(0x0006), 0x0005, []byte{0x11, 0x12, 0x13, 0x14, 0x15}},
-	},
-	//////////// int (2-byte) types ////////////////
-	tagTest{
-		input{"0001", "0003", "00000002", "11111212", ""},
-		input{"0100", "0300", "02000000", "11111212", ""},
-		output{0x0001, DataType(0x0003), 0x0002, []byte{0x11, 0x11, 0x12, 0x12}},
-	},
-	tagTest{
-		input{"0001", "0003", "00000003", "00000010", "111213141516"},
-		input{"0100", "0300", "03000000", "10000000", "111213141516"},
-		output{0x0001, DataType(0x0003), 0x0003, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16}},
-	},
-	tagTest{
-		input{"0001", "0008", "00000001", "11120000", ""},
-		input{"0100", "0800", "01000000", "11120000", ""},
-		output{0x0001, DataType(0x0008), 0x0001, []byte{0x11, 0x12}},
-	},
-	tagTest{
-		input{"0001", "0008", "00000003", "00000100", "111213141516"},
-		input{"0100", "0800", "03000000", "00100000", "111213141516"},
-		output{0x0001, DataType(0x0008), 0x0003, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16}},
-	},
-	//////////// int (4-byte) types ////////////////
-	tagTest{
-		input{"0001", "0004", "00000001", "11121314", ""},
-		input{"0100", "0400", "01000000", "11121314", ""},
-		output{0x0001, DataType(0x0004), 0x0001, []byte{0x11, 0x12, 0x13, 0x14}},
-	},
-	tagTest{
-		input{"0001", "0004", "00000002", "00000010", "1112131415161718"},
-		input{"0100", "0400", "02000000", "10000000", "1112131415161718"},
-		output{0x0001, DataType(0x0004), 0x0002, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}},
-	},
-	tagTest{
-		input{"0001", "0009", "00000001", "11121314", ""},
-		input{"0100", "0900", "01000000", "11121314", ""},
-		output{0x0001, DataType(0x0009), 0x0001, []byte{0x11, 0x12, 0x13, 0x14}},
-	},
-	tagTest{
-		input{"0001", "0009", "00000002", "00000011", "1112131415161819"},
-		input{"0100", "0900", "02000000", "11000000", "1112131415161819"},
-		output{0x0001, DataType(0x0009), 0x0002, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x18, 0x19}},
-	},
-	//////////// rational types ////////////////////
-	tagTest{
-		input{"0001", "0005", "00000001", "00000010", "1112131415161718"},
-		input{"0100", "0500", "01000000", "10000000", "1112131415161718"},
-		output{0x0001, DataType(0x0005), 0x0001, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}},
-	},
-	tagTest{
-		input{"0001", "000A", "00000001", "00000011", "1112131415161819"},
-		input{"0100", "0A00", "01000000", "11000000", "1112131415161819"},
-		output{0x0001, DataType(0x000A), 0x0001, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x18, 0x19}},
-	},
-	//////////// float types ///////////////////////
-	tagTest{
-		input{"0001", "0005", "00000001", "00000010", "1112131415161718"},
-		input{"0100", "0500", "01000000", "10000000", "1112131415161718"},
-		output{0x0001, DataType(0x0005), 0x0001, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18}},
-	},
-	tagTest{
-		input{"0101", "000A", "00000001", "00000011", "1112131415161819"},
-		input{"0101", "0A00", "01000000", "11000000", "1112131415161819"},
-		output{0x0101, DataType(0x000A), 0x0001, []byte{0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x18, 0x19}},
-	},
-}
-
-func TestDecodeTag(t *testing.T) {
-	for i, tst := range set1 {
-		testSingle(t, binary.BigEndian, tst.big, tst.out, i)
-		testSingle(t, binary.LittleEndian, tst.little, tst.out, i)
-	}
-}
-
-func testSingle(t *testing.T, order binary.ByteOrder, in input, out output, i int) {
-	data := buildInput(in, order)
-	buf := bytes.NewReader(data)
-	tg, err := DecodeTag(buf, order)
-	if err != nil {
-		t.Errorf("(%v) tag %v%+v decode failed: %v", order, i, in, err)
-		return
-	}
-
-	if tg.Id != out.id {
-		t.Errorf("(%v) tag %v id decode: expected %v, got %v", order, i, out.id, tg.Id)
-	}
-	if tg.Type != out.typ {
-		t.Errorf("(%v) tag %v type decode: expected %v, got %v", order, i, out.typ, tg.Type)
-	}
-	if tg.Count != out.count {
-		t.Errorf("(%v) tag %v component count decode: expected %v, got %v", order, i, out.count, tg.Count)
-	}
-	if !bytes.Equal(tg.Val, out.val) {
-		t.Errorf("(%v) tag %v value decode: expected %v, got %v", order, i, out.val, tg.Val)
-	}
-}
-
-// buildInputBig creates a byte-slice based on big-endian ordered input
-func buildInput(in input, order binary.ByteOrder) []byte {
-	data := make([]byte, 0)
-	d, _ := hex.DecodeString(in.tgId)
-	data = append(data, d...)
-	d, _ = hex.DecodeString(in.tpe)
-	data = append(data, d...)
-	d, _ = hex.DecodeString(in.nVals)
-	data = append(data, d...)
-	d, _ = hex.DecodeString(in.offset)
-	data = append(data, d...)
-
-	if in.val != "" {
-		off := order.Uint32(d)
-		for i := 0; i < int(off)-12; i++ {
-			data = append(data, 0xFF)
-		}
-
-		d, _ = hex.DecodeString(in.val)
-		data = append(data, d...)
-	}
-
-	return data
-}
-
-func TestDecode(t *testing.T) {
-	name := filepath.Join(*dataDir, "sample1.tif")
-	f, err := os.Open(name)
-	if err != nil {
-		t.Fatalf("%v\n", err)
-	}
-
-	tif, err := Decode(f)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	t.Log(tif)
-}
-
-func TestDecodeTag_blob(t *testing.T) {
-	buf := bytes.NewReader(data())
-	buf.Seek(10, 1)
-	tg, err := DecodeTag(buf, binary.LittleEndian)
-	if err != nil {
-		t.Fatalf("tag decode failed: %v", err)
-	}
-
-	t.Logf("tag: %v+\n", tg)
-	n, d, err := tg.Rat2(0)
-	if err != nil {
-		t.Fatalf("tag decoded wrong type: %v", err)
-	}
-	t.Logf("tag rat val: %v/%v\n", n, d)
-}
-
-func data() []byte {
-	s1 := "49492A000800000002001A0105000100"
-	s1 += "00002600000069870400010000001102"
-	s1 += "0000000000004800000001000000"
-
-	dat, err := hex.DecodeString(s1)
-	if err != nil {
-		panic("invalid string fixture")
-	}
-	return dat
-}