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317 lines
10 KiB
Python
317 lines
10 KiB
Python
"""
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Modplug metadata inserted into module files.
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Doc:
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- http://modplug.svn.sourceforge.net/viewvc/modplug/trunk/modplug/soundlib/
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Author: Christophe GISQUET <christophe.gisquet@free.fr>
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Creation: 10th February 2007
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"""
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from hachoir.field import (FieldSet,
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UInt32, UInt16, UInt8, Int8, Float32,
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RawBytes, String, GenericVector, ParserError)
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from hachoir.core.endian import LITTLE_ENDIAN
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from hachoir.core.text_handler import textHandler, hexadecimal
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MAX_ENVPOINTS = 32
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def parseComments(parser):
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size = parser["block_size"].value
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if size > 0:
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yield String(parser, "comment", size)
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class MidiOut(FieldSet):
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static_size = 9 * 32 * 8
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def createFields(self):
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for name in ("start", "stop", "tick", "noteon", "noteoff",
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"volume", "pan", "banksel", "program"):
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yield String(self, name, 32, strip='\0')
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class Command(FieldSet):
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static_size = 32 * 8
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def createFields(self):
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start = self.absolute_address
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size = self.stream.searchBytesLength(b"\0", False, start)
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if size > 0:
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self.info("Command: %s" % self.stream.readBytes(start, size))
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yield String(self, "command", size, strip='\0')
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yield RawBytes(self, "parameter", (self._size // 8) - size)
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class MidiSFXExt(FieldSet):
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static_size = 16 * 32 * 8
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def createFields(self):
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for index in range(16):
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yield Command(self, "command[]")
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class MidiZXXExt(FieldSet):
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static_size = 128 * 32 * 8
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def createFields(self):
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for index in range(128):
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yield Command(self, "command[]")
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def parseMidiConfig(parser):
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yield MidiOut(parser, "midi_out")
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yield MidiSFXExt(parser, "sfx_ext")
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yield MidiZXXExt(parser, "zxx_ext")
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def parseChannelSettings(parser):
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size = parser["block_size"].value // 4
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if size > 0:
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yield GenericVector(parser, "settings", size, UInt32, "mix_plugin")
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def parseEQBands(parser):
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size = parser["block_size"].value // 4
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if size > 0:
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yield GenericVector(parser, "gains", size, UInt32, "band")
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class SoundMixPluginInfo(FieldSet):
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static_size = 128 * 8
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def createFields(self):
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yield textHandler(UInt32(self, "plugin_id1"), hexadecimal)
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yield textHandler(UInt32(self, "plugin_id2"), hexadecimal)
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yield UInt32(self, "input_routing")
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yield UInt32(self, "output_routing")
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yield GenericVector(self, "routing_info", 4, UInt32, "reserved")
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yield String(self, "name", 32, strip='\0')
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yield String(self, "dll_name", 64, desc="Original DLL name", strip='\0')
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class ExtraData(FieldSet):
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def __init__(self, parent, name, desc=None):
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FieldSet.__init__(self, parent, name, desc)
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self._size = (4 + self["size"].value) * 8
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def createFields(self):
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yield UInt32(self, "size")
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size = self["size"].value
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if size:
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yield RawBytes(self, "data", size)
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class XPlugData(FieldSet):
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def __init__(self, parent, name, desc=None):
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FieldSet.__init__(self, parent, name, desc)
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self._size = (4 + self["size"].value) * 8
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def createFields(self):
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yield UInt32(self, "size")
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while not self.eof:
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yield UInt32(self, "marker")
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if self["marker"].value == 'DWRT':
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yield Float32(self, "dry_ratio")
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elif self["marker"].value == 'PORG':
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yield UInt32(self, "default_program")
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def parsePlugin(parser):
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yield SoundMixPluginInfo(parser, "info")
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# Check if VST setchunk present
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size = parser.stream.readBits(
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parser.absolute_address + parser.current_size, 32, LITTLE_ENDIAN)
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if 0 < size < parser.current_size + parser._size:
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yield ExtraData(parser, "extra_data")
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# Check if XPlugData is present
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size = parser.stream.readBits(
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parser.absolute_address + parser.current_size, 32, LITTLE_ENDIAN)
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if 0 < size < parser.current_size + parser._size:
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yield XPlugData(parser, "xplug_data")
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# Format: "XXXX": (type, count, name)
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EXTENSIONS = {
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# WriteInstrumentHeaderStruct@Sndfile.cpp
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"XTPM": {
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"..Fd": (UInt32, 1, "Flags"),
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"..OF": (UInt32, 1, "Fade out"),
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"..VG": (UInt32, 1, "Global Volume"),
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"...P": (UInt32, 1, "Panning"),
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"..EV": (UInt32, 1, "Volume Envelope"),
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"..EP": (UInt32, 1, "Panning Envelope"),
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".EiP": (UInt32, 1, "Pitch Envelope"),
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".SLV": (UInt8, 1, "Volume Loop Start"),
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".ELV": (UInt8, 1, "Volume Loop End"),
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".BSV": (UInt8, 1, "Volume Sustain Begin"),
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".ESV": (UInt8, 1, "Volume Sustain End"),
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".SLP": (UInt8, 1, "Panning Loop Start"),
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".ELP": (UInt8, 1, "Panning Loop End"),
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".BSP": (UInt8, 1, "Panning Substain Begin"),
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".ESP": (UInt8, 1, "Padding Substain End"),
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"SLiP": (UInt8, 1, "Pitch Loop Start"),
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"ELiP": (UInt8, 1, "Pitch Loop End"),
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"BSiP": (UInt8, 1, "Pitch Substain Begin"),
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"ESiP": (UInt8, 1, "Pitch Substain End"),
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".ANN": (UInt8, 1, "NNA"),
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".TCD": (UInt8, 1, "DCT"),
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".AND": (UInt8, 1, "DNA"),
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"..SP": (UInt8, 1, "Panning Swing"),
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"..SV": (UInt8, 1, "Volume Swing"),
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".CFI": (UInt8, 1, "IFC"),
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".RFI": (UInt8, 1, "IFR"),
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"..BM": (UInt32, 1, "Midi Bank"),
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"..PM": (UInt8, 1, "Midi Program"),
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"..CM": (UInt8, 1, "Midi Channel"),
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".KDM": (UInt8, 1, "Midi Drum Key"),
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".SPP": (Int8, 1, "PPS"),
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".CPP": (UInt8, 1, "PPC"),
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".[PV": (UInt32, MAX_ENVPOINTS, "Volume Points"),
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".[PP": (UInt32, MAX_ENVPOINTS, "Panning Points"),
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"[PiP": (UInt32, MAX_ENVPOINTS, "Pitch Points"),
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".[EV": (UInt8, MAX_ENVPOINTS, "Volume Enveloppe"),
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".[EP": (UInt8, MAX_ENVPOINTS, "Panning Enveloppe"),
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"[EiP": (UInt8, MAX_ENVPOINTS, "Pitch Enveloppe"),
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".[MN": (UInt8, 128, "Note Mapping"),
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"..[K": (UInt32, 128, "Keyboard"),
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"..[n": (String, 32, "Name"),
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".[nf": (String, 12, "Filename"),
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".PiM": (UInt8, 1, "MixPlug"),
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"..RV": (UInt16, 1, "Volume Ramping"),
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"...R": (UInt16, 1, "Resampling"),
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"..SC": (UInt8, 1, "Cut Swing"),
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"..SR": (UInt8, 1, "Res Swing"),
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"..MF": (UInt8, 1, "Filter Mode"),
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},
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# See after "CODE tag dictionary", same place, elements with [EXT]
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"STPM": {
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"...C": (UInt32, 1, "Channels"),
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".VWC": (None, 0, "CreatedWith version"),
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".VGD": (None, 0, "Default global volume"),
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"..TD": (None, 0, "Default tempo"),
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"HIBE": (None, 0, "Embedded instrument header"),
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"VWSL": (None, 0, "LastSavedWith version"),
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".MMP": (None, 0, "Plugin Mix mode"),
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".BPR": (None, 0, "Rows per beat"),
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".MPR": (None, 0, "Rows per measure"),
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"@PES": (None, 0, "Chunk separator"),
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".APS": (None, 0, "Song Pre-amplification"),
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"..MT": (None, 0, "Tempo mode"),
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"VTSV": (None, 0, "VSTi volume"),
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}
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}
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class MPField(FieldSet):
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def __init__(self, parent, name, ext, desc=None):
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FieldSet.__init__(self, parent, name, desc)
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self.ext = ext
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self.info(self.createDescription())
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self._size = (6 + self["data_size"].value) * 8
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def createFields(self):
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# Identify tag
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code = self.stream.readBytes(self.absolute_address, 4)
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if code in self.ext:
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cls, count, comment = self.ext[code]
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else:
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cls, count, comment = RawBytes, 1, "Unknown tag"
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# Header
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yield String(self, "code", 4, comment)
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yield UInt16(self, "data_size")
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# Data
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if not cls:
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size = self["data_size"].value
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if size > 0:
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yield RawBytes(self, "data", size)
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elif cls in (String, RawBytes):
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yield cls(self, "value", count)
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else:
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if count > 1:
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yield GenericVector(self, "values", count, cls, "item")
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else:
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yield cls(self, "value")
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def createDescription(self):
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return "Element '%s', size %i" % \
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(self["code"]._description, self["data_size"].value)
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def parseFields(parser):
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# Determine field names
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ext = EXTENSIONS[parser["block_type"].value]
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if ext is None:
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raise ParserError("Unknown parent '%s'" % parser["block_type"].value)
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# Parse fields
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addr = parser.absolute_address + parser.current_size
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while not parser.eof and parser.stream.readBytes(addr, 4) in ext:
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field = MPField(parser, "field[]", ext)
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yield field
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addr += field._size
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# Abort on unknown codes
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parser.info("End of extension '%s' when finding '%s'" %
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(parser["block_type"].value, parser.stream.readBytes(addr, 4)))
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class ModplugBlock(FieldSet):
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BLOCK_INFO = {
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"TEXT": ("comment", True, "Comment", parseComments),
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"MIDI": ("midi_config", True, "Midi configuration", parseMidiConfig),
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"XFHC": ("channel_settings", True, "Channel settings", parseChannelSettings),
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"XTPM": ("instrument_ext", False, "Instrument extensions", parseFields),
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"STPM": ("song_ext", False, "Song extensions", parseFields),
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}
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def __init__(self, parent, name, desc=None):
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FieldSet.__init__(self, parent, name, desc)
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self.parseBlock = parsePlugin
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t = self["block_type"].value
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self.has_size = False
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if t in self.BLOCK_INFO:
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self._name, self.has_size, desc, parseBlock = self.BLOCK_INFO[t]
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if callable(desc):
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self.createDescription = lambda: desc(self)
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if parseBlock:
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self.parseBlock = lambda: parseBlock(self)
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if self.has_size:
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self._size = 8 * (self["block_size"].value + 8)
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def createFields(self):
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yield String(self, "block_type", 4)
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if self.has_size:
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yield UInt32(self, "block_size")
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if self.parseBlock:
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yield from self.parseBlock()
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if self.has_size:
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size = self["block_size"].value - (self.current_size // 8)
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if size > 0:
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yield RawBytes(self, "data", size, "Unknown data")
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def ParseModplugMetadata(parser):
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while not parser.eof:
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block = ModplugBlock(parser, "block[]")
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yield block
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if block["block_type"].value == "STPM":
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break
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# More undocumented stuff: date ?
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size = (parser._size - parser.absolute_address - parser.current_size) // 8
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if size > 0:
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yield RawBytes(parser, "info", size)
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