mirror of
https://github.com/wader/fq.git
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673 lines
14 KiB
Plaintext
673 lines
14 KiB
Plaintext
/test.mp3:
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# ffmpeg -f lavfi -i sine -t 10ms test.mp3
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$ fq -d mp3 '.frames[0].xing | ., .frames, .toc, .header, .present_flags.toc, .missing' /test.mp3
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |.frames[0].xing: {} (xing)
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0x40| 49 6e 66 6f | Info | header: "Info"
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0x40| 00 00 00 0f | .... | present_flags: {}
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0x40| 00 00 00 02 | .... | frames: 2
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0x40| 00 00| ..| bytes: 599
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0x50|02 57 |.W |
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0x50| 00 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6| ..............| toc: [100]
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0x60|a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6 a6|................|
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* |until 0xb5.7 (100) | |
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0xb0| 00 00 00 00 | .... | quality: 0
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0xb0| 4c 61 76 63 35 38| Lavc58| lame_extension: {}
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0xc0|2e 39 31 00 00 00 00 00 00 00 00 00 00 00 00 24|.91............$|
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0xd0|05 07 00 00 00 00 00 00 02 57 62 f0 5a 35 |.........Wb.Z5 |
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
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0x40| 00 00 00 02 | .... |.frames[0].xing.frames: 2
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |.frames[0].xing.toc: [100]
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0x50| 00 | . | [0]: 0
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0x50| a6 | . | [1]: 166
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0x50| a6 | . | [2]: 166
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0x50| a6 | . | [3]: 166
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0x50| a6 | . | [4]: 166
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0x50| a6 | . | [5]: 166
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0x50| a6 | . | [6]: 166
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0x50| a6 | . | [7]: 166
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0x50| a6 | . | [8]: 166
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0x50| a6 | . | [9]: 166
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0x50| a6 | . | [10]: 166
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0x50| a6 | . | [11]: 166
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0x50| a6 | . | [12]: 166
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0x50| a6| .| [13]: 166
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0x60|a6 |. | [14]: 166
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0x60| a6 | . | [15]: 166
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0x60| a6 | . | [16]: 166
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0x60| a6 | . | [17]: 166
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0x60| a6 | . | [18]: 166
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0x60| a6 | . | [19]: 166
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0x60| a6 | . | [20]: 166
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0x60| a6 | . | [21]: 166
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0x60| a6 | . | [22]: 166
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0x60| a6 | . | [23]: 166
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0x60| a6 | . | [24]: 166
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0x60| a6 | . | [25]: 166
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0x60| a6 | . | [26]: 166
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0x60| a6 | . | [27]: 166
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0x60| a6 | . | [28]: 166
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0x60| a6| .| [29]: 166
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0x70|a6 |. | [30]: 166
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0x70| a6 | . | [31]: 166
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0x70| a6 | . | [32]: 166
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0x70| a6 | . | [33]: 166
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0x70| a6 | . | [34]: 166
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0x70| a6 | . | [35]: 166
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0x70| a6 | . | [36]: 166
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0x70| a6 | . | [37]: 166
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0x70| a6 | . | [38]: 166
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0x70| a6 | . | [39]: 166
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0x70| a6 | . | [40]: 166
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0x70| a6 | . | [41]: 166
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0x70| a6 | . | [42]: 166
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0x70| a6 | . | [43]: 166
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0x70| a6 | . | [44]: 166
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0x70| a6| .| [45]: 166
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0x80|a6 |. | [46]: 166
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0x80| a6 | . | [47]: 166
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0x80| a6 | . | [48]: 166
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0x80| a6 | . | [49]: 166
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| | | [50:99]: ...
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
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0x40| 49 6e 66 6f | Info |.frames[0].xing.header: "Info"
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|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
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0x40| 0f | . |.frames[0].xing.present_flags.toc: true
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null
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$ fq -d mp3 '.frames[0].xing | ., .frames, .toc, .header, .present_flags.toc, .missing | tovalue' /test.mp3
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{
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"bytes": 599,
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"frames": 2,
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"header": "Info",
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"lame_extension": {
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"abr_vbr": 0,
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"audiophile_replay_gain": 0,
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"encoder": "Lavc58.91",
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"encoder_delay": 576,
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"encoder_padding": 1287,
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"lame_ath_type": 0,
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"lame_flags": 0,
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"length": 599,
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"lowpass_filter": 0,
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"misc": 0,
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"mp3_gain": 0,
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"music_crc": 25328,
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"preset": 0,
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"radio_replay_gain": 0,
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"replay_gain_peak": 0,
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"tag_crc": 23093,
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"tag_revision": 0,
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"vbr_method": 0
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},
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"present_flags": {
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"bytes": true,
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"frames": true,
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"quality": true,
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"toc": true,
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"unused": 0
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},
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"quality": 0,
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"toc": [
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}
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2
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]
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"Info"
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true
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null
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$ fq -d mp3 '.frames[0].xing | ., .frames, .toc, .header, .present_flags.toc, .missing | tovalue' /test.mp3
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{
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"bytes": 599,
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"frames": 2,
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"header": "Info",
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"lame_extension": {
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"abr_vbr": 0,
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"audiophile_replay_gain": 0,
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"encoder": "Lavc58.91",
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"encoder_delay": 576,
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"encoder_padding": 1287,
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"lame_ath_type": 0,
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"lame_flags": 0,
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"length": 599,
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"lowpass_filter": 0,
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"misc": 0,
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"mp3_gain": 0,
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"music_crc": 25328,
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"preset": 0,
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"radio_replay_gain": 0,
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"replay_gain_peak": 0,
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"tag_crc": 23093,
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"tag_revision": 0,
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"vbr_method": 0
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},
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"present_flags": {
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"bytes": true,
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"frames": true,
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"quality": true,
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"toc": true,
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"unused": 0
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},
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"quality": 0,
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"toc": [
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]
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}
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2
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[
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]
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"Info"
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true
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null
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$ fq -d mp3 '.frames[0].xing | ., .frames, .toc, .header, .present_flags.toc, .missing | type' /test.mp3
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"object"
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"number"
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"array"
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"string"
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"boolean"
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"null"
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$ fq -d mp3 '.headers | length, type' /test.mp3
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1
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"array"
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$ fq -d mp3 '.headers | tostring' /test.mp3
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exitcode: 5
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stderr:
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error: tostring cannot be applied to: array
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$ fq -d mp3 '.headers | tonumber' /test.mp3
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exitcode: 5
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stderr:
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error: tonumber cannot be applied to: array
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$ fq -d mp3 '.headers[0] | tostring' /test.mp3
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exitcode: 5
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stderr:
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error: tostring cannot be applied to: object
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$ fq -d mp3 '.headers[0] | tonumber' /test.mp3
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exitcode: 5
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stderr:
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error: tonumber cannot be applied to: object
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$ fq -d mp3 '.headers[0].version | tonumber' /test.mp3
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4
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$ fq -d mp3 '.headers[0].version | tostring' /test.mp3
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"4"
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$ fq -d mp3 '.headers[0].magic | tonumber' /test.mp3
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exitcode: 5
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stderr:
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error: invalid number: "ID3"
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$ fq -d mp3 '.headers[0].magic | tovalue, length, tostring, type' /test.mp3
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"ID3"
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3
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"ID3"
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"string"
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$ fq -d mp3 '.headers[0].magic[4]' /test.mp3
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""
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$ fq -d mp3 '.headers[0].magic[4:10]' /test.mp3
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""
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$ fq -d mp3 '.headers[10]' /test.mp3
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null
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$ fq -d mp3 '.headers[10:20]' /test.mp3
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[]
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$ fq -d mp3 '.headers[0].padding | tovalue, length, tostring, type' /test.mp3
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null
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0
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"null"
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"null"
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$ fq -d mp3 '.headers[0].flags.unsynchronisation | tovalue, tostring, type' /test.mp3
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false
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"false"
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"boolean"
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# regresison null value (padding)
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$ fq -d mp3 '.headers[0] | tovalue' /test.mp3
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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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{
|
|
"flags": {
|
|
"compression": false,
|
|
"data_length_indicator": false,
|
|
"encryption": false,
|
|
"file_alter_preservation": false,
|
|
"grouping_identity": false,
|
|
"read_only": false,
|
|
"tag_alter_preservation": false,
|
|
"unsync": false,
|
|
"unused0": 0,
|
|
"unused1": 0,
|
|
"unused2": 0
|
|
},
|
|
"id": "TSSE",
|
|
"size": 15,
|
|
"text": "Lavf58.45.100",
|
|
"text_encoding": 3
|
|
}
|
|
],
|
|
"magic": "ID3",
|
|
"padding": null,
|
|
"revision": 0,
|
|
"size": 35,
|
|
"version": 4
|
|
}
|
|
# test each in decoded order
|
|
$ fq -d mp3 '.headers[0][]' /test.mp3
|
|
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
|
|
0x0|49 44 33 |ID3 |.headers[0].magic: "ID3" (Correct)
|
|
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
|
|
0x0| 04 | . |.headers[0].version: 4
|
|
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
|
|
0x0| 00 | . |.headers[0].revision: 0
|
|
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |.headers[0].flags: {}
|
|
0x0| 00 | . | unsynchronisation: false
|
|
0x0| 00 | . | extended_header: false
|
|
0x0| 00 | . | experimental_indicator: false
|
|
0x0| 00 | . | unused: 0
|
|
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
|
|
0x0| 00 00 00 23 | ...# |.headers[0].size: 35
|
|
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |.headers[0].frames: [1]
|
|
0x00| 54 53 53 45 00 00| TSSE..| [0]: {}
|
|
0x10|00 0f 00 00 03 4c 61 76 66 35 38 2e 34 35 2e 31|.....Lavf58.45.1|
|
|
0x20|30 30 00 |00. |
|
|
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f| |
|
|
0x20| 00 00 00 00 00 00 00 00 00 00 | .......... |.headers[0].padding: Correct (none) (zero padding)
|