Support soft karaoke midi files (,kar)
This commit is contained in:
Jean-Francois Dockes
parent
2de2f986d3
commit
131c0189f4
129
src/filters/rclkar
Executable file
129
src/filters/rclkar
Executable file
@ -0,0 +1,129 @@
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#!/usr/bin/env python
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# Read a .kar midi karaoke file and translate to recoll indexable format
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import rclexecm
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import sys
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import os.path
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try:
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import midi
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except:
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print "RECFILTERROR HELPERNOTFOUND python:midi"
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sys.exit(1);
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# prototype for the html document we're returning
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htmltemplate = '''
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=utf-8">
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<title>%s</title>
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<meta name="author" content="%s">
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<meta name="language" content="%s">
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</head>
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<body>
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%s
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</body>
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</html>
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'''
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class KarTextExtractor:
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def __init__(self, em):
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self.em = em
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self.currentindex = 0
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def extractone(self, params):
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docdata = ""
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ok = False
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# Mimetype not used for now
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if not params.has_key("mimetype:"):
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mimetype = 'audio/x-midi'
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else:
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mimetype = params["mimetype:"]
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if not params.has_key("filename:"):
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self.em.rclog("extractone: no mime or file name")
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return (ok, docdata, "", rclexecm.RclExecM.eofnow)
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filename = params["filename:"]
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try:
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stream = midi.read_midifile(filename)
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except Exception, err:
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self.em.rclog("extractone: extract failed: [%s]" % err)
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return (ok, docdata, "", rclexecm.RclExecM.eofnow)
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title = None
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author = None
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language = None
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lyrics = ""
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for event in stream.iterevents():
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if isinstance(event, midi.TextMetaEvent):
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if not event.data:
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continue
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elif event.data[0] == '/' or event.data[0] == '\\':
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lyrics += "\n" + event.data[1:]
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elif event.data[0] == '[' or event.data[0] == ']':
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lyrics += event.data[1:]
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elif event.data[0] == '@':
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if len(event.data) == 1:
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continue
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else:
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if event.data[1] == 'I':
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lyrics += event.data[2:] + '\n'
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elif event.data[1] == 'L':
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language = event.data[2:]
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elif event.data[1] == 'T':
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if title is None:
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title = event.data[2:]
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elif author is None:
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author = event.data[2:]
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else:
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lyrics += event.data
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elif isinstance(event, midi.LryricsEvent):
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if not event.data:
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continue
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elif event.data[0] == '/' or event.data[0] == '\\':
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lyrics += "\n" + event.data[1:]
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else:
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lyrics += event.data
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if title is None:
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title = ""
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if author is None:
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author = ""
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if language is None:
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language = ""
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if lyrics != "":
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try:
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lyrics = self.em.htmlescape(lyrics.encode("utf-8"))
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lyrics = lyrics.replace("\n", "<br>")
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except Exception, err:
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print "ENCODE FAILED", err
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lyrics = ""
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self.em.setmimetype("text/html")
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docdata = htmltemplate % (title, author, language, lyrics)
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ok = True
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return (ok, docdata, "", rclexecm.RclExecM.eofnext)
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###### File type handler api, used by rclexecm. Some stuff makes little
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# sense because we only have one doc per file.
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def openfile(self, params):
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self.currentindex = 0
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return True
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def getipath(self, params):
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return self.extractone(params)
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def getnext(self, params):
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if self.currentindex >= 1:
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return (False, "", "", rclexecm.RclExecM.eofnow)
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else:
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ret= self.extractone(params)
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self.currentindex += 1
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return ret
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proto = rclexecm.RclExecM()
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extract = KarTextExtractor(proto)
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rclexecm.main(proto, extract)
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@ -79,6 +79,7 @@ text/x-tex = exec rcltex
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application/x-chm = execm rclchm
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application/zip = execm rclzip
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audio/mpeg = execm rclaudio
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audio/x-karaoke = execm rclkar
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image/gif = execm rclimg
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image/jpeg = execm rclimg
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image/png = execm rclimg
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@ -149,6 +150,7 @@ application/x-awk = source
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application/x-perl = source
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application/x-shellscript = source
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audio/mpeg = sownd
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audio/x-karaoke = sownd
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image/gif = image
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image/jpeg = image
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image/png = image
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@ -225,6 +227,7 @@ presentation = application/vnd.ms-powerpoint \
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media = \
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audio/mpeg \
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audio/x-karaoke \
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application/ogg \
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application/x-flac \
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image/jpeg \
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@ -99,6 +99,8 @@
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.mp3 = audio/mpeg
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.flac = application/x-flac
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.ogg = application/ogg
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# Note: file -i says audio/x-midi, but soft karaoke files are special.
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.kar = audio/x-karaoke
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.png = image/png
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.jpg = image/jpeg
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