78 lines
1.6 KiB
Plaintext
78 lines
1.6 KiB
Plaintext
meta:
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id: wav
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file-extension: wav
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encoding: ascii
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endian: le
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seq:
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- id: magic
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type: str
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size: 4
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- id: size
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type: u4
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- id: wave_str
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type: str
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size: 4
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- id: sections
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type: section
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repeat: eos
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instances: {}
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types:
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section:
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seq:
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- id: name
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type: str
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size: 4
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- id: size
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type: u4
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- id: content
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size: size
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type:
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switch-on: name
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cases:
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'"fmt "': fmt
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'"data"': data
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fmt:
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seq:
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- id: type
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type: u2
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- id: channels
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type: u2
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- id: samplerate
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type: u4
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- id: datarate
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type: u4
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doc: Might also be datarate per channel
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- id: bytes_per_sample
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type: u2
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- id: bits_per_unit
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type: u2
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instances:
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combined_type:
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value: type * 100 + bits_per_unit
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data:
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seq:
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- id: content
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type: sample
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repeat: eos
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types:
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sample:
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seq:
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- id: data
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type:
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# I don't mention this in the video, but you
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# can use arithmetic expressions here as well
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# I just did this to show value instances :)
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switch-on: _root.sections[0].content.\
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as<fmt>.combined_type
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cases:
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332: f4
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108: u1
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116: s2
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132: s4
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repeat: expr
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repeat-expr: _root.sections[0].content.\
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as<fmt>.channels
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enums: {}
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doc: Hello, world
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doc-ref: https://example.com
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