hanzoai/goexif
2
0
Fork 0
mirror of https://github.com/hanzoai/goexif.git synced 2026-09-30 22:36:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add makernote parsing to example. Improved example generally.

Browse Source
This commit is contained in:
Robert Carlsen
2014-09-16 11:17:14 -05:00
parent 4dfd6493d6 48af04a88d
commit b60cbd4a97
2 changed files with 32 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files
README.md
+19 -10
View File
@@ -26,14 +26,15 @@ Example usage:
package main
import (
"os"
"log"
"fmt"
"fmt"
"log"
"os"
"github.com/rwcarlsen/goexif/exif"
"github.com/rwcarlsen/goexif/exif"
"github.com/rwcarlsen/goexif/mknote"
)
func main() {
func ExampleDecode() {
fname := "sample1.jpg"
f, err := os.Open(fname)
@@ -41,20 +42,28 @@ func main() {
log.Fatal(err)
}
// Optionally register camera makenote data parsing - currently Nikon and
// Canon are supported.
exif.RegisterParsers(mknote.All...)
x, err := exif.Decode(f)
defer f.Close()
if err != nil {
log.Fatal(err)
}
camModel, _ := x.Get(exif.Model)
date, _ := x.Get(exif.DateTimeOriginal)
camModel, _ := x.Get(exif.Model) // normally, don't ignore errors!
fmt.Println(camModel.StringVal())
fmt.Println(date.StringVal())
focal, _ := x.Get(exif.FocalLength)
numer, denom := focal.Rat2(0) // retrieve first (only) rat. value
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)
}
```
exif/example_test.go
+13 -3
View File
@@ -6,6 +6,7 @@ import (
"os"
"github.com/rwcarlsen/goexif/exif"
"github.com/rwcarlsen/goexif/mknote"
)
func ExampleDecode() {
@@ -16,17 +17,26 @@ func ExampleDecode() {
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)
date, _ := x.Get(exif.DateTimeOriginal)
camModel, _ := x.Get(exif.Model) // normally, don't ignore errors!
fmt.Println(camModel.StringVal())
fmt.Println(date.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)
}