def createWMWriter(self, profilenum):
profman = wmfapi.CreateProfileManager()
profile = profman.LoadSystemProfile(profilenum)
writer = wmfapi.CreateWriter()
writer.SetProfile(profile)
return writer
for s in dir(wmfapi):
if s.find("WMMEDIA") >= 0 or s.find("WMFORMAT") >= 0:
if guid == getattr(wmfapi, s):
return s
profman = wmfapi.CreateProfileManager()
nprofiles = profman.GetSystemProfileCount()
print nprofiles, 'system profiles:'
for ix in range(nprofiles):
prof = profman.LoadSystemProfile(ix)
print ix, prof.GetName()
# find audio pin
prof = profman.LoadSystemProfile(10)
writer = wmfapi.CreateWriter()
writer.SetProfile(prof)
npins = writer.GetInputCount()
audiopinix = -1
audiopinmt = None
audiopinprops = None
print 'profile pins:'
for i in range(npins):
pinprop = writer.GetInputProps(i)
pintype = pinprop.GetType()
print i, '\t', findguid(pintype)
if pintype == wmfapi.WMMEDIATYPE_Audio:
audiopinix = i
audiopinprops = pinprop
audiopinmt = pinprop.GetMediaType()
if audiopinix >= 0:
def convertaudiofile(url, dstdir, file, node):
# ignore suggested extension and make our own
file = os.path.splitext(file)[0] + '.wma'
fullpath = os.path.join(dstdir, file)
profman = wmfapi.CreateProfileManager()
# set an apropriate system profile
# or a create a new one
profile = profman.LoadSystemProfile(10)
# find audio pin
writer = wmfapi.CreateWriter()
writer.SetProfile(profile)
npins = writer.GetInputCount()
audiopinix = -1
audiopinmt = None
audiopinprops = None
print 'profile pins:'
for i in range(npins):
pinprop = writer.GetInputProps(i)
pintype = pinprop.GetType()
if pintype == wmfapi.WMMEDIATYPE_Audio:
audiopinix = i
audiopinprops = pinprop
audiopinmt = pinprop.GetMediaType()
if audiopinix >= 0:
print 'audiopin is pin ', audiopinix
else:
print 'no audio pin'
return None
writer.SetOutputFilename(fullpath)
b = dshow.CreateGraphBuilder()
import MMurl
url = MMurl.canonURL(url)
url = MMurl.unquote(url)
b.RenderFile(url)
# find renderer
try:
aurenderer = b.FindFilterByName('Default DirectSound Device')
except:
aurenderer = None
if not aurenderer:
try:
aurenderer = b.FindFilterByName('Default WaveOut Device')
except:
aurenderer = None
if not aurenderer:
return None
enumpins = aurenderer.EnumPins()
pin = enumpins.Next()
aulastpin = pin.ConnectedTo()
b.RemoveFilter(aurenderer)
try:
f = dshow.CreateFilter('Audio Windows Media Converter')
except:
print 'Audio windows media converter filter is not installed'
return None
b.AddFilter(f, 'AWMC')
b.Render(aulastpin)
try:
wmconv = f.QueryIWMConverter()
except:
print 'Filter does not support interface IWMConverter'
return
try:
uk = writer.QueryIUnknown()
except:
print 'WMWriter QueryIUnknown failed'
return
wmconv.SetWMWriter(uk)
try:
uk = audiopinprops.QueryIUnknown()
except:
print 'WMInputMediaProps QueryIUnknown failed'
return
wmconv.SetAudioInputProps(audiopinix, uk)
# media properties and converting is
# managed by our dshow filter
mc = b.QueryIMediaControl()
mc.Run()
import sys
if sys.platform == 'win32':
# remove messages in queue
import win32ui
while b.WaitForCompletion(0) == 0:
win32ui.PumpWaitingMessages()
mc.Stop()
win32ui.PumpWaitingMessages()
else:
b.WaitForCompletion()
mc.Stop()