78 lines
2.5 KiB
Python
78 lines
2.5 KiB
Python
#!/usr/bin/env python3
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"""Extract soothe2 plugin params from an .rpp as a JSON dict.
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Reaper stores the VST3 state as base64: line1 after <VST> is a short binary
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header, following lines (128-char chunks) are the outer b64 blob which wraps
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<SOOTHE2STATE><PARAM .../>...</SOOTHE2STATE> at byte offset 16.
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"""
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import base64, re, html, sys
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def b64dec(s):
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s = re.sub(r'[^A-Za-z0-9+/=]', '', s)
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best = b''
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for pad in range(4):
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s2 = s + '=' * pad
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try:
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d = base64.b64decode(s2, validate=False)
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if len(d) > len(best):
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best = d
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except Exception:
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continue
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# if nothing cleanly decodes, brute-force by trimming tail bad chars
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if not best:
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for cut in range(1, min(8, len(s))):
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try:
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d = base64.b64decode(s[:-cut], validate=False)
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if len(d) > len(best):
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best = d
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except Exception:
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continue
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return best
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def rpp_params(path):
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lines = open(path, encoding='utf8', errors='ignore').read().split('\n')
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for i, l in enumerate(lines):
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if 'soothe2_x64.vst3' in l:
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break
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chunks = []
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for l in lines[i + 1:]:
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s = l.strip()
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if s == '}':
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break
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if s:
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chunks.append(s)
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# Some RPPs wrap the param blob with the short binary-header line as the
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# first entry, others start directly with the payload line. Try both joins.
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for text in (''.join(chunks), ''.join(chunks[1:])):
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outer = b64dec(text)
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p = outer.find(b'<?xml')
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if p < 0:
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continue
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xml = html.unescape(outer[p:].decode('utf8', 'ignore'))
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params = dict(re.findall(r'<PARAM id="([^"]+)" value="([^"]+)"', xml))
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proc = re.search(r'processorStateData="([^"]+)"', xml)
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if proc:
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inner = b64dec(re.sub(r'\s', '', proc.group(1)))
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params['processorStateData'] = inner.decode('utf8', 'ignore')
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if params:
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return params
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return {}
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def params_json(path):
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p = rpp_params(path)
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p.pop('processorStateData', None)
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return p
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if __name__ == '__main__':
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import json, sys
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if len(sys.argv) > 2 and sys.argv[1] == '--flat':
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for f in sys.argv[2:]:
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p = params_json(f)
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for k in sorted(p):
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print(f'{k}={p[k]}')
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else:
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for f in sys.argv[1:]:
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p = params_json(f)
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print('===', f.split('/')[-1])
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for k in sorted(p):
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print(f' {k:22s} = {p[k]}') |