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fq/format/midi/testdata/keys.fqtest
twystd 578b7e78e3 midi: restructured event decoding to decode length and struct fields (cf. https://github.com/wader/fq/pull/1004#discussion_r1737105173) 
- restructured and simplified metaevent decoding
- restructured and simplified  MIDI event decoding
- added sample events for remaining metaevents
- moved MIDI test and sample files to testdata/midi
- fixed fuzzing fail 8450de010e750ed5
2024-09-01 16:41:26 -07:00

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$ fq -d midi d midi/key-signatures.mid
|00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f|0123456789abcdef|.{}: midi/key-signatures.mid (midi)
| | | header{}:
| | | header[0:5]:
0x000|4d 54 68 64 |MThd | [0]: "MThd"
0x000| 00 00 00 06 | .... | [1]: 6
0x000| 00 00 | .. | [2]: 0
0x000| 00 01 | .. | [3]: 1
0x000| 01 e0 | .. | [4]: 480
| | | tracks[0:1]:
| | | [0]{}: track
0x000| 4d 54| MT| tag: "MTrk"
0x010|72 6b |rk |
0x010| 00 00 00 f7 | .... | length: 247
| | | events[0:34]:
| | | [0]{}: metaevent
| | | time{}:
0x010| 00 | . | delta: 0
| | | tick: 0
0x010| ff | . | status: 255
0x010| 03 | . | event: "track_name" (3)
0x010| 0e 4b 65 79 20 53 69| .Key Si| track_name: "Key Signatures"
0x020|67 6e 61 74 75 72 65 73 |gnatures |
| | | [1]{}: metaevent
| | | time{}:
0x020| 87 69 | .i | delta: 1001
| | | tick: 1001
0x020| ff | . | status: 255
0x020| 59 | Y | event: "key_signature" (89)
0x020| 02 | . | length: 2
0x020| 00 00 | .. | key_signature: "C major" (0)
| | | [2]{}: metaevent
| | | time{}:
0x020| 87| .| delta: 1001
0x030|69 |i |
| | | tick: 2002
0x030| ff | . | status: 255
0x030| 59 | Y | event: "key_signature" (89)
0x030| 02 | . | length: 2
0x030| 01 00 | .. | key_signature: "G major" (256)
| | | [3]{}: metaevent
| | | time{}:
0x030| 87 69 | .i | delta: 1001
| | | tick: 3003
0x030| ff | . | status: 255
0x030| 59 | Y | event: "key_signature" (89)
0x030| 02 | . | length: 2
0x030| 02 00 | .. | key_signature: "D major" (512)
| | | [4]{}: metaevent
| | | time{}:
0x030| 87 69 | .i | delta: 1001
| | | tick: 4004
0x030| ff| .| status: 255
0x040|59 |Y | event: "key_signature" (89)
0x040| 02 | . | length: 2
0x040| 03 00 | .. | key_signature: "A major" (768)
| | | [5]{}: metaevent
| | | time{}:
0x040| 87 69 | .i | delta: 1001
| | | tick: 5005
0x040| ff | . | status: 255
0x040| 59 | Y | event: "key_signature" (89)
0x040| 02 | . | length: 2
0x040| 04 00 | .. | key_signature: "E major" (1024)
| | | [6]{}: metaevent
| | | time{}:
0x040| 87 69 | .i | delta: 1001
| | | tick: 6006
0x040| ff | . | status: 255
0x040| 59 | Y | event: "key_signature" (89)
0x040| 02| .| length: 2
0x050|05 00 |.. | key_signature: "B major" (1280)
| | | [7]{}: metaevent
| | | time{}:
0x050| 87 69 | .i | delta: 1001
| | | tick: 7007
0x050| ff | . | status: 255
0x050| 59 | Y | event: "key_signature" (89)
0x050| 02 | . | length: 2
0x050| 06 00 | .. | key_signature: "F♯ major" (1536)
| | | [8]{}: metaevent
| | | time{}:
0x050| 87 69 | .i | delta: 1001
| | | tick: 8008
0x050| ff | . | status: 255
0x050| 59 | Y | event: "key_signature" (89)
0x050| 02 | . | length: 2
0x050| 07 00| ..| key_signature: "C♯ major" (1792)
| | | [9]{}: metaevent
| | | time{}:
0x060|87 69 |.i | delta: 1001
| | | tick: 9009
0x060| ff | . | status: 255
0x060| 59 | Y | event: "key_signature" (89)
0x060| 02 | . | length: 2
0x060| 00 00 | .. | key_signature: "C major" (0)
| | | [10]{}: metaevent
| | | time{}:
0x060| 87 69 | .i | delta: 1001
| | | tick: 10010
0x060| ff | . | status: 255
0x060| 59 | Y | event: "key_signature" (89)
0x060| 02 | . | length: 2
0x060| ff 00 | .. | key_signature: "F major" (65280)
| | | [11]{}: metaevent
| | | time{}:
0x060| 87 69| .i| delta: 1001
| | | tick: 11011
0x070|ff |. | status: 255
0x070| 59 | Y | event: "key_signature" (89)
0x070| 02 | . | length: 2
0x070| fe 00 | .. | key_signature: "B♭ major" (65024)
| | | [12]{}: metaevent
| | | time{}:
0x070| 87 69 | .i | delta: 1001
| | | tick: 12012
0x070| ff | . | status: 255
0x070| 59 | Y | event: "key_signature" (89)
0x070| 02 | . | length: 2
0x070| fd 00 | .. | key_signature: "E♭ major" (64768)
| | | [13]{}: metaevent
| | | time{}:
0x070| 87 69 | .i | delta: 1001
| | | tick: 13013
0x070| ff | . | status: 255
0x070| 59| Y| event: "key_signature" (89)
0x080|02 |. | length: 2
0x080| fc 00 | .. | key_signature: "A♭ major" (64512)
| | | [14]{}: metaevent
| | | time{}:
0x080| 87 69 | .i | delta: 1001
| | | tick: 14014
0x080| ff | . | status: 255
0x080| 59 | Y | event: "key_signature" (89)
0x080| 02 | . | length: 2
0x080| fb 00 | .. | key_signature: "D♭ major" (64256)
| | | [15]{}: metaevent
| | | time{}:
0x080| 87 69 | .i | delta: 1001
| | | tick: 15015
0x080| ff | . | status: 255
0x080| 59 | Y | event: "key_signature" (89)
0x080| 02 | . | length: 2
0x080| fa| .| key_signature: "G♭ major" (64000)
0x090|00 |. |
| | | [16]{}: metaevent
| | | time{}:
0x090| 87 69 | .i | delta: 1001
| | | tick: 16016
0x090| ff | . | status: 255
0x090| 59 | Y | event: "key_signature" (89)
0x090| 02 | . | length: 2
0x090| f9 00 | .. | key_signature: "C♭ major" (63744)
| | | [17]{}: metaevent
| | | time{}:
0x090| 87 69 | .i | delta: 1001
| | | tick: 17017
0x090| ff | . | status: 255
0x090| 59 | Y | event: "key_signature" (89)
0x090| 02 | . | length: 2
0x090| 00 01 | .. | key_signature: "A minor" (1)
| | | [18]{}: metaevent
| | | time{}:
0x090| 87| .| delta: 1001
0x0a0|69 |i |
| | | tick: 18018
0x0a0| ff | . | status: 255
0x0a0| 59 | Y | event: "key_signature" (89)
0x0a0| 02 | . | length: 2
0x0a0| 01 01 | .. | key_signature: "E minor" (257)
| | | [19]{}: metaevent
| | | time{}:
0x0a0| 87 69 | .i | delta: 1001
| | | tick: 19019
0x0a0| ff | . | status: 255
0x0a0| 59 | Y | event: "key_signature" (89)
0x0a0| 02 | . | length: 2
0x0a0| 02 01 | .. | key_signature: "B minor" (513)
| | | [20]{}: metaevent
| | | time{}:
0x0a0| 87 69 | .i | delta: 1001
| | | tick: 20020
0x0a0| ff| .| status: 255
0x0b0|59 |Y | event: "key_signature" (89)
0x0b0| 02 | . | length: 2
0x0b0| 03 01 | .. | key_signature: "F♯ minor" (769)
| | | [21]{}: metaevent
| | | time{}:
0x0b0| 87 69 | .i | delta: 1001
| | | tick: 21021
0x0b0| ff | . | status: 255
0x0b0| 59 | Y | event: "key_signature" (89)
0x0b0| 02 | . | length: 2
0x0b0| 04 01 | .. | key_signature: "C♯ minor" (1025)
| | | [22]{}: metaevent
| | | time{}:
0x0b0| 87 69 | .i | delta: 1001
| | | tick: 22022
0x0b0| ff | . | status: 255
0x0b0| 59 | Y | event: "key_signature" (89)
0x0b0| 02| .| length: 2
0x0c0|05 01 |.. | key_signature: "G♯ minor" (1281)
| | | [23]{}: metaevent
| | | time{}:
0x0c0| 87 69 | .i | delta: 1001
| | | tick: 23023
0x0c0| ff | . | status: 255
0x0c0| 59 | Y | event: "key_signature" (89)
0x0c0| 02 | . | length: 2
0x0c0| 06 01 | .. | key_signature: "D♯ minor" (1537)
| | | [24]{}: metaevent
| | | time{}:
0x0c0| 87 69 | .i | delta: 1001
| | | tick: 24024
0x0c0| ff | . | status: 255
0x0c0| 59 | Y | event: "key_signature" (89)
0x0c0| 02 | . | length: 2
0x0c0| 07 01| ..| key_signature: "A♯ minor" (1793)
| | | [25]{}: metaevent
| | | time{}:
0x0d0|87 69 |.i | delta: 1001
| | | tick: 25025
0x0d0| ff | . | status: 255
0x0d0| 59 | Y | event: "key_signature" (89)
0x0d0| 02 | . | length: 2
0x0d0| 00 01 | .. | key_signature: "A minor" (1)
| | | [26]{}: metaevent
| | | time{}:
0x0d0| 87 69 | .i | delta: 1001
| | | tick: 26026
0x0d0| ff | . | status: 255
0x0d0| 59 | Y | event: "key_signature" (89)
0x0d0| 02 | . | length: 2
0x0d0| ff 01 | .. | key_signature: "D minor" (65281)
| | | [27]{}: metaevent
| | | time{}:
0x0d0| 87 69| .i| delta: 1001
| | | tick: 27027
0x0e0|ff |. | status: 255
0x0e0| 59 | Y | event: "key_signature" (89)
0x0e0| 02 | . | length: 2
0x0e0| fe 01 | .. | key_signature: "G minor" (65025)
| | | [28]{}: metaevent
| | | time{}:
0x0e0| 87 69 | .i | delta: 1001
| | | tick: 28028
0x0e0| ff | . | status: 255
0x0e0| 59 | Y | event: "key_signature" (89)
0x0e0| 02 | . | length: 2
0x0e0| fd 01 | .. | key_signature: "C minor" (64769)
| | | [29]{}: metaevent
| | | time{}:
0x0e0| 87 69 | .i | delta: 1001
| | | tick: 29029
0x0e0| ff | . | status: 255
0x0e0| 59| Y| event: "key_signature" (89)
0x0f0|02 |. | length: 2
0x0f0| fc 01 | .. | key_signature: "F minor" (64513)
| | | [30]{}: metaevent
| | | time{}:
0x0f0| 87 69 | .i | delta: 1001
| | | tick: 30030
0x0f0| ff | . | status: 255
0x0f0| 59 | Y | event: "key_signature" (89)
0x0f0| 02 | . | length: 2
0x0f0| fb 01 | .. | key_signature: "B♭ minor" (64257)
| | | [31]{}: metaevent
| | | time{}:
0x0f0| 87 69 | .i | delta: 1001
| | | tick: 31031
0x0f0| ff | . | status: 255
0x0f0| 59 | Y | event: "key_signature" (89)
0x0f0| 02 | . | length: 2
0x0f0| fa| .| key_signature: "E♭ minor" (64001)
0x100|01 |. |
| | | [32]{}: metaevent
| | | time{}:
0x100| 87 69 | .i | delta: 1001
| | | tick: 32032
0x100| ff | . | status: 255
0x100| 59 | Y | event: "key_signature" (89)
0x100| 02 | . | length: 2
0x100| f9 01 | .. | key_signature: "A♭ minor" (63745)
| | | [33]{}: metaevent
| | | time{}:
0x100| 87 69 | .i | delta: 1001
| | | tick: 33033
0x100| ff | . | status: 255
0x100| 2f | / | event: "end_of_track" (47)
0x100| 00| | .| | length: 0
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