From: Aarti Parikh <aarti.parikh@gmail.com>
Date: Tue, 29 May 2018 00:42:10 +0000 (+0000)
Subject: image: add an example that shows how to get the metadata of an image
X-Git-Tag: go1.11beta1~293
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=5c36fdfd39e231e87b267fc718c9fd6a86f49b90;p=gostls13.git

image: add an example that shows how to get the metadata of an image

This is a simple but everyday use case in image libraries. Currently,
there is one example in this library and it is lengthy and involved.

This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.

Change-Id: Idca527d97c095af88755446e1548fa2b8ace7eb0
GitHub-Last-Rev: f5743c8ef337a8b7a5126db21d784593f4f53c8a
GitHub-Pull-Request: golang/go#25616
Reviewed-on: https://go-review.googlesource.com/114939
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
---

diff --git a/src/image/decode_example_test.go b/src/image/decode_example_test.go
index 81fa0378e1..526c03f3c1 100644
--- a/src/image/decode_example_test.go
+++ b/src/image/decode_example_test.go
@@ -21,6 +21,15 @@ import (
 	_ "image/jpeg"
 )
 
+func Example_decodeConfig() {
+	reader := base64.NewDecoder(base64.StdEncoding, strings.NewReader(data))
+	config, format, err := image.DecodeConfig(reader)
+	if err != nil {
+		log.Fatal(err)
+	}
+	fmt.Println("Width:", config.Width, "Height:", config.Height, "Format:", format)
+}
+
 func Example() {
 	// Decode the JPEG data. If reading from file, create a reader with
 	//