open, err := os.Open("./png-format.png")
if err != nil {
panic(err)
}
p, err := ParsePng(open)
if err != nil {
panic(err)
}
// print png image data
log.Println(*p.IDATs[0])
// print png addition text
log.Println(*p.TEXTs[0])
// print other chunks
for i := range p.chunks {
log.Println(string(p.chunks[i].code[:]))
}You also can custom chunk parse~
type CustomChunkParse struct {
// your struct
}
func (c *CustomChunkParse) ChunkName() ChunkName {
return ChunkName("cust")
}
func (c *CustomChunkParse) Parse(chunk *chunk) error {
// your custom parse
return nil
}
func TestCustomChunk(t *testing.T) {
open, err := os.Open("./png-format.png")
if err != nil {
panic(err)
}
p, err := ParsePng(open)
if err != nil {
panic(err)
}
c := &CustomChunkParse{}
err = p.ParseChunk(c)
if err != nil {
panic(err)
}
}
