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go-exif
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exif-read-tool: Upgraded to v2 module

for/master
Dustin Oprea 2020-01-11 10:59:31 -05:00
parent fa4e784620
commit 307a31d82b
1 changed files with 47 additions and 35 deletions
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82
v2/exif-read-tool/main.go
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@ -21,8 +21,10 @@ import (
"encoding/json"
"io/ioutil"
"github.com/dsoprea/go-exif"
"github.com/dsoprea/go-logging"
"github.com/dsoprea/go-exif/v2"
"github.com/dsoprea/go-exif/v2/common"
)
var (
@ -32,16 +34,36 @@ var (
)
type IfdEntry struct {
IfdPath string `json:"ifd_path"`
FqIfdPath string `json:"fq_ifd_path"`
IfdIndex int `json:"ifd_index"`
TagId uint16 `json:"tag_id"`
TagName string `json:"tag_name"`
TagTypeId exif.TagTypePrimitive `json:"tag_type_id"`
TagTypeName string `json:"tag_type_name"`
UnitCount uint32 `json:"unit_count"`
Value interface{} `json:"value"`
ValueString string `json:"value_string"`
IfdPath string `json:"ifd_path"`
FqIfdPath string `json:"fq_ifd_path"`
IfdIndex int `json:"ifd_index"`
TagId uint16 `json:"tag_id"`
TagName string `json:"tag_name"`
TagTypeId exifcommon.TagTypePrimitive `json:"tag_type_id"`
TagTypeName string `json:"tag_type_name"`
UnitCount uint32 `json:"unit_count"`
Value interface{} `json:"value"`
ValueString string `json:"value_string"`
}
type visitorFn func(fqIfdPath string, ifdIndex int, ite *exif.IfdTagEntry) (err error)
type visitorWrapper struct {
visitor visitorFn
}
func (vw *visitorWrapper) Visit(fqIfdPath string, ifdIndex int, ite *exif.IfdTagEntry) (err error) {
defer func() {
if state := recover(); state != nil {
err = log.Wrap(state.(error))
log.Panic(err)
}
}()
err = vw.visitor(fqIfdPath, ifdIndex, ite)
log.PanicIf(err)
return nil
}
func main() {
@ -84,7 +106,7 @@ func main() {
ti := exif.NewTagIndex()
entries := make([]IfdEntry, 0)
visitor := func(fqIfdPath string, ifdIndex int, tagId uint16, tagType exif.TagType, valueContext exif.ValueContext) (err error) {
visitor := func(fqIfdPath string, ifdIndex int, ite *exif.IfdTagEntry) (err error) {
defer func() {
if state := recover(); state != nil {
err = log.Wrap(state.(error))
@ -92,6 +114,9 @@ func main() {
}
}()
tagId := ite.TagId()
tagType := ite.TagType()
ifdPath, err := im.StripPathPhraseIndices(fqIfdPath)
log.PanicIf(err)
@ -105,26 +130,11 @@ func main() {
}
}
valueString := ""
var value interface{}
if tagType.Type() == exif.TypeUndefined {
var err error
value, err = valueContext.Undefined()
if err != nil {
if err == exif.ErrUnhandledUnknownTypedTag {
value = nil
} else {
log.Panic(err)
}
}
value, err := ite.Value()
log.PanicIf(err)
valueString = fmt.Sprintf("%v", value)
} else {
valueString, err = valueContext.FormatFirst()
log.PanicIf(err)
value = valueString
}
valueString, err := ite.FormatFirst()
log.PanicIf(err)
entry := IfdEntry{
IfdPath: ifdPath,
@ -132,9 +142,9 @@ func main() {
IfdIndex: ifdIndex,
TagId: tagId,
TagName: it.Name,
TagTypeId: tagType.Type(),
TagTypeName: tagType.Name(),
UnitCount: valueContext.UnitCount(),
TagTypeId: tagType,
TagTypeName: tagType.String(),
UnitCount: ite.UnitCount(),
Value: value,
ValueString: valueString,
}
@ -144,7 +154,9 @@ func main() {
return nil
}
_, err = exif.Visit(exif.IfdStandard, im, ti, rawExif, visitor)
vw := &visitorWrapper{visitor}
_, err = exif.Visit(exifcommon.IfdStandard, im, ti, rawExif, vw)
log.PanicIf(err)
if printAsJsonArg == true {