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@@ -0,0 +1,110 @@
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+#!/usr/bin/env python3
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+import os
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+import sys
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+from xml.dom.minidom import parse
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+import subprocess
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+
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+import argparse
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+
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+
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+def parse_params(preset):
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+ return {
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+ par.attributes["name"].value: par.attributes["value"].value
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+ for par in preset.getElementsByTagName("param")
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+ }
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+
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+
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+# @lru_cache()
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+def get_filter_url(filtername):
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+ if filtername == "eq8":
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+ return "http://calf.sourceforge.net/plugins/Equalizer8Band"
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+ out = subprocess.check_output("lv2ls", encoding="ascii")
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+ urls = [line.strip() for line in out.split("\n")]
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+ for u in urls:
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+ if u.lower().endswith("/" + filtername.lower()):
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+ return u
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+ raise ValueError("filter not found: " + filtername)
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+
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+
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+def get_params_order(filtername):
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+ filterurl = get_filter_url(filtername)
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+ out = subprocess.check_output(["lv2info", filterurl], encoding="ascii")
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+ params = []
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+ for line in out.split("\n"):
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+ if line.strip().startswith("Symbol:"):
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+ val = line.split()[1].strip()
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+ if val in ("in_l", "in_r", "out_l", "out_r"):
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+ continue
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+ params.append(val)
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+ return params
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+
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+
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+def usage():
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+ print(
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+ "%s: Convert an XML file created by calfjackhost to "
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+ "ecasound-equivalent code, making use of calf-ladspa" % sys.argv[0]
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+ )
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+ print("\nUsage:")
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+ print(" %s FILENAME.xml [PRESET]" % sys.argv[0])
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+ print(
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+ "\nIf PRESET is omitted, the command will print a list of available "
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+ "presets found in the specified file"
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+ )
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+ print(
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+ "\nIf PRESET is given, the command will convert that preset in "
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+ "ecasound command line"
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+ )
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+
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+
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+def get_parser():
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+ p = argparse.ArgumentParser()
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+ p.add_argument(
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+ "--function-name",
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+ type=str,
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+ default="calffilter",
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+ help="Generate a liquidsoap function with this name",
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+ )
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+ p.add_argument("fname", nargs=1, help="An XML file generated by calfjackhost")
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+ p.add_argument("presets", nargs="*", help="All the filters you want to use")
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+ p.add_argument(
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+ "--exec", default=False, action="store_true", help="Run, don't print"
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+ )
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+ return p
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+
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+
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+if __name__ == "__main__":
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+ p = get_parser()
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+ args = p.parse_args()
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+
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+ dom = parse(args.fname[0])
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+ if not args.presets:
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+ print("available presets:")
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+ for preset in dom.getElementsByTagName("preset"):
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+ print("-", preset.attributes["name"].value)
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+ sys.exit(0)
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+
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+ ecasound_args = []
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+ for preset in args.presets:
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+ pr_info = [
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+ p
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+ for p in dom.getElementsByTagName("preset")
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+ if p.attributes["name"].value == preset
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+ ][0]
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+ raw_params = parse_params(pr_info)
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+ params_order = get_params_order(pr_info.attributes["plugin"].value)
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+ values = []
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+ for p in params_order:
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+ values.append((p, raw_params[p]))
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+ ecasound_args.append(
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+ "-elv2:%s,%s"
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+ % (
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+ get_filter_url(pr_info.attributes["plugin"].value),
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+ ",".join(v[1] for v in values),
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+ )
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+ )
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+ cli = "ecasound -i stdin -o stdout".split()
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+ cli += ecasound_args
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+ if not args.exec:
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+ print(" ".join(cli))
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+ else:
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+ os.execv("/usr/bin/ecasound", cli)
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