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203 lines
5.2 KiB
Plaintext
203 lines
5.2 KiB
Plaintext
$ fq -i -d mp3 . /test.mp3
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mp3> .headers | ., tovalue, type, length?
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.headers: [1]
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0x00|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..| [0]: {} (id3v2)
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* |until 0x2c.7 (45) | |
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[
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{
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"flags": {
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"experimental_indicator": false,
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"extended_header": false,
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"unsynchronisation": false,
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"unused": 0
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},
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"frames": [
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{
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"flags": {
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"compression": false,
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"data_length_indicator": false,
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"encryption": false,
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"file_alter_preservation": false,
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"grouping_identity": false,
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"read_only": false,
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"tag_alter_preservation": false,
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"unsync": false,
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"unused0": 0,
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"unused1": 0,
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"unused2": 0
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},
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"id": "TSSE",
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"size": 15,
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"text": "Lavf58.45.100",
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"text_encoding": "UTF-8"
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}
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],
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"magic": "ID3",
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"padding": "<10>AAAAAAAAAAAAAA==",
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"revision": 0,
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"size": 35,
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"version": 4
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}
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]
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"array"
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1
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mp3> .headers[0] | ., type, length?
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.headers[0]: {} (id3v2)
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0x00|49 44 33 |ID3 | magic: "ID3" (valid)
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0x00| 04 | . | version: 4
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0x00| 00 | . | revision: 0
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0x00| 00 | . | flags: {}
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0x00| 00 00 00 23 | ...# | size: 35
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0x00| 54 53 53 45 00 00| TSSE..| frames: [1]
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0x10|00 0f 00 00 03 4c 61 76 66 35 38 2e 34 35 2e 31|.....Lavf58.45.1|
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0x20|30 30 00 |00. |
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0x20| 00 00 00 00 00 00 00 00 00 00 | .......... | padding: raw bits (all zero)
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"object"
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7
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mp3> .headers[-1000] | ., type, length?
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null
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"null"
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0
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mp3> .headers[1000] | ., type, length?
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null
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"null"
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0
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mp3> .headers[1:3] | ., type, length?
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[]
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"array"
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0
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mp3> .headers[0:-1] | ., type, length?
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[]
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"array"
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0
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mp3> .headers[-1000:2000] | ., type, length?
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[
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{
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"flags": {
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"experimental_indicator": false,
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"extended_header": false,
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"unsynchronisation": false,
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"unused": 0
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},
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"frames": [
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{
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"flags": {
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"compression": false,
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"data_length_indicator": false,
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"encryption": false,
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"file_alter_preservation": false,
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"grouping_identity": false,
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"read_only": false,
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"tag_alter_preservation": false,
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"unsync": false,
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"unused0": 0,
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"unused1": 0,
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"unused2": 0
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},
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"id": "TSSE",
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"size": 15,
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"text": "Lavf58.45.100",
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"text_encoding": "UTF-8"
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}
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],
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"magic": "ID3",
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"padding": "<10>AAAAAAAAAAAAAA==",
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"revision": 0,
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"size": 35,
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"version": 4
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}
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]
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"array"
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1
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mp3> .headers["test"] | ., type, length?
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error: expected an object with key "test" but got: array
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mp3> [.headers[]] | type, length?
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"array"
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1
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mp3> .headers | keys
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[
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0
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]
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mp3> .headers | has("a")
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error: cannot check whether array has a key: a
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mp3> .headers | has(0)
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true
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mp3> .headers | type
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"array"
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mp3> .headers | tonumber
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error: tonumber cannot be applied to: array
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mp3> .headers | tostring
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error: tostring cannot be applied to: array
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mp3> .headers + ""
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error: cannot add: array ([{"flags":{"experimental_ ...]) and string ("")
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mp3> .headers + 1
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error: cannot add: array ([{"flags":{"experimental_ ...]) and number (1)
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mp3> .headers._start | ., type, length?
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0
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"number"
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0
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mp3> .headers._stop | ., type, length?
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360
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"number"
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360
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mp3> .headers._len | ., type, length?
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360
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"number"
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360
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mp3> .headers._name | ., type, length?
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"headers"
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"string"
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7
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mp3> .headers._sym | ., type, length?
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null
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"null"
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0
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mp3> .headers._description | ., type, length?
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null
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"null"
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0
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mp3> .headers._path | ., type, length?
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[
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"headers"
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]
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"array"
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1
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mp3> .headers._bits | ., type, length?
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x00|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..|.: raw bits 0x0-0x2c.7 (45)
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* |until 0x2c.7 (45) | |
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"buffer"
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360
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mp3>
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mp3> .headers._bytes | ., type, length?
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|
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0x00|49 44 33 04 00 00 00 00 00 23 54 53 53 45 00 00|ID3......#TSSE..|.: raw bits 0x0-0x2c.7 (45)
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* |until 0x2c.7 (45) | |
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"buffer"
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45
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mp3>
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mp3> .headers._error | ., type, length?
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null
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"null"
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0
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mp3> .headers._unknown | ., type, length?
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false
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"boolean"
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mp3> .headers.a = 1
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error: cannot update key a for array
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mp3> .headers[0] = 1
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error: cannot update key 0 for array
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mp3> .headers.a |= empty
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error: expected an object with key "a" but got: array
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mp3> .headers[0] |= empty
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error: cannot update key 0 for array
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mp3> .headers | setpath(["a"]; 1)
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error: cannot update key a for array
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mp3> .headers | setpath([0]; 1)
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error: cannot update key 0 for array
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mp3> .headers | delpaths([["a"]])
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error: cannot update key a for array
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mp3> .headers | delpaths([[0]])
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error: cannot update key 0 for array
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mp3> ^D
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