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8e0dde03d0
This will allow passing both cli options and format options to sub decoder. Ex: pass keylog option to a tls decoder when decoding a pcap. Ex: pass decode options to a format inside a http body inside a pcap. Add ArgAs method to lookup argument based on type. This also makes the format decode function have same signature as sub decoders in the decode API. This change decode.Format a bit: DecodeFn is now just func(d *D) any DecodeInArg renamed to DefaultInArg
37 lines
714 B
Go
37 lines
714 B
Go
package id3
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import (
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"github.com/wader/fq/format"
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"github.com/wader/fq/pkg/decode"
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"github.com/wader/fq/pkg/interp"
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"github.com/wader/fq/pkg/scalar"
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)
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func init() {
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interp.RegisterFormat(decode.Format{
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Name: format.ID3V11,
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Description: "ID3v1.1 metadata",
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DecodeFn: id3v11Decode,
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})
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}
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func id3v11Decode(d *decode.D) any {
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d.AssertAtLeastBitsLeft(128 * 8)
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d.FieldUTF8("magic", 4, d.StrAssert("TAG+"))
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d.FieldUTF8("title", 60)
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d.FieldUTF8("artist", 60)
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d.FieldUTF8("album", 60)
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d.FieldU8("speed", scalar.UintMapSymStr{
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0: "unset",
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1: "slow",
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2: "medium",
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3: "fast",
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4: "hardcore",
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})
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d.FieldUTF8("genre", 30)
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d.FieldUTF8("start", 6)
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d.FieldUTF8("stop", 6)
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return nil
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}
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