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mirror of https://github.com/wader/fq.git synced 2024-12-25 14:23:18 +03:00
fq/format/mpeg/adts.go
2021-09-16 16:27:47 +02:00

40 lines
793 B
Go

package mpeg
import (
"github.com/wader/fq/format"
"github.com/wader/fq/format/registry"
"github.com/wader/fq/pkg/decode"
)
var adtsFrame []*decode.Format
func init() {
registry.MustRegister(&decode.Format{
Name: format.ADTS,
Description: "Audio Data Transport Stream",
Groups: []string{format.PROBE},
DecodeFn: adtsDecoder,
RootV: decode.Array{},
RootName: "frames",
Dependencies: []decode.Dependency{
{Names: []string{format.ADTS_FRAME}, Formats: &adtsFrame},
},
})
}
func adtsDecoder(d *decode.D, in interface{}) interface{} {
validFrames := 0
for !d.End() {
if dv, _, _ := d.FieldTryFormat("frame", adtsFrame, nil); dv == nil {
break
}
validFrames++
}
if validFrames == 0 {
d.Invalid("no valid frames")
}
return nil
}