def play(self): # 播放文件
f = open(self.file, 'rb') # 打开文件
header = f.read(WAV_HEADER_SIZE) # 读取WAV文件头
(riff, riffsize, wave, fmt, fmtsize,
format, nchannels, samplespersecond,
datarate, blockalign, bitspersample,
data, size) =\
struct.unpack('<4sl4s4slhhllhh4sl', header) # 获取参数值
if riff != 'RIFF' or fmtsize != 16 or fmt != 'fmt ' or data != 'data': # 判断文件格式
raise 'Data Error'
wfx = pywintypes.WAVEFORMATEX() # 创建WAVEFORMATEX结构
wfx.wFormatTag = format
wfx.nChannels = nchannels
wfx.nSamplesPerSec = samplespersecond
wfx.nAvgBytesPerSec = datarate
wfx.nBlockAlign = blockalign
wfx.wBitsPerSample = bitspersample
d = directsound.DirectSoundCreate(None, None) # 使用DirectSound播放声音
d.SetCooperativeLevel(None, directsound.DSSCL_PRIORITY)
sdesc = directsound.DSBUFFERDESC()
sdesc.dwFlags = (directsound.DSBCAPS_STICKYFOCUS
| directsound.DSBCAPS_CTRLPOSITIONNOTIFY)
sdesc.dwBufferBytes = size
sdesc.lpwfxFormat = wfx
self.buffer = buffer = d.CreateSoundBuffer(sdesc, None)
buffer.Update(0, f.read(size))
buffer.Play(0)
def play(self):
f = open(self.file, 'rb')
hdr = f.read(WAV_HEADER_SIZE)
wfx, size = self.wav_header_unpack(hdr)
d = ds.DirectSoundCreate(None, None)
d.SetCooperativeLevel(None, ds.DSSCL_PRIORITY)
sdesc = ds.DSBUFFERDESC()
sdesc.dwFlags = (ds.DSBCAPS_STICKYFOCUS
| ds.DSBCAPS_CTRLPOSITIONNOTIFY)
sdesc.dwBufferBytes = size
sdesc.lpwfxFormat = wfx
self.currentbuffer = buffer = d.CreateSoundBuffer(sdesc, None)
buffer.Update(0, f.read(size))
buffer.Play(0)
def add(self):
self.file = filedialog.askopenfilename(title='Python DirectSound',
filetypes=[('WAV', '*.wav')])
f = open(self.file, 'rb')
hdr = f.read(WAV_HEADER_SIZE)
wfx, size = self.wav_header_unpack(hdr)
d = ds.DirectSoundCreate(None, None)
d.SetCooperativeLevel(None, ds.DSSCL_PRIORITY)
sdesc = ds.DSBUFFERDESC()
sdesc.dwFlags = (ds.DSBCAPS_STICKYFOCUS
| ds.DSBCAPS_CTRLPOSITIONNOTIFY)
sdesc.dwBufferBytes = size
sdesc.lpwfxFormat = wfx
self.buffer = buffer = d.CreateSoundBuffer(sdesc, None)
buffer.Update(0, f.read(size))
def testPlay(self):
"""Mesdames et Messieurs, la cour de Devin Dazzle"""
# look for the test file in various places
candidates = [
os.path.dirname(__file__),
os.path.dirname(sys.argv[0]),
# relative to 'testall.py' in the win32com test suite.
os.path.join(
os.path.dirname(sys.argv[0]), "../../win32comext/directsound/test"
),
".",
]
for candidate in candidates:
fname = os.path.join(candidate, "01-Intro.wav")
if os.path.isfile(fname):
break
else:
raise TestSkipped("Can't find test .wav file to play")
with open(fname, "rb") as f:
hdr = f.read(WAV_HEADER_SIZE)
wfx, size = wav_header_unpack(hdr)
d = ds.DirectSoundCreate(None, None)
d.SetCooperativeLevel(None, ds.DSSCL_PRIORITY)
sdesc = ds.DSBUFFERDESC()
sdesc.dwFlags = ds.DSBCAPS_STICKYFOCUS | ds.DSBCAPS_CTRLPOSITIONNOTIFY
sdesc.dwBufferBytes = size
sdesc.lpwfxFormat = wfx
buffer = d.CreateSoundBuffer(sdesc, None)
event = win32event.CreateEvent(None, 0, 0, None)
notify = buffer.QueryInterface(ds.IID_IDirectSoundNotify)
notify.SetNotificationPositions((ds.DSBPN_OFFSETSTOP, event))
buffer.Update(0, f.read(size))
buffer.Play(0)
win32event.WaitForSingleObject(event, -1)
def test_2_Attr(self):
'DSBUFFERDESC attribute access'
c = ds.DSBUFFERDESC()
c.dwFlags = 1
c.dwBufferBytes = 2
c.lpwfxFormat = pywintypes.WAVEFORMATEX()
c.lpwfxFormat.wFormatTag = pywintypes.WAVE_FORMAT_PCM
c.lpwfxFormat.nChannels = 2
c.lpwfxFormat.nSamplesPerSec = 44100
c.lpwfxFormat.nAvgBytesPerSec = 176400
c.lpwfxFormat.nBlockAlign = 4
c.lpwfxFormat.wBitsPerSample = 16
self.failUnless(c.dwFlags == 1)
self.failUnless(c.dwBufferBytes == 2)
self.failUnless(c.lpwfxFormat.wFormatTag == 1)
self.failUnless(c.lpwfxFormat.nChannels == 2)
self.failUnless(c.lpwfxFormat.nSamplesPerSec == 44100)
self.failUnless(c.lpwfxFormat.nAvgBytesPerSec == 176400)
self.failUnless(c.lpwfxFormat.nBlockAlign == 4)
self.failUnless(c.lpwfxFormat.wBitsPerSample == 16)
def testPlay(self):
"""Mesdames et Messieurs, la cour de Devin Dazzle"""
# relative to 'testall.py' in the win32com test suite.
extra = os.path.join(
os.path.dirname(sys.argv[0]), "../../win32comext/directsound/test"
)
fname = find_test_fixture("01-Intro.wav", extra)
with open(fname, "rb") as f:
hdr = f.read(WAV_HEADER_SIZE)
wfx, size = wav_header_unpack(hdr)
try:
d = ds.DirectSoundCreate(None, None)
except pythoncom.com_error as exc:
if exc.hresult != ds.DSERR_NODRIVER:
raise
raise TestSkipped(exc)
d.SetCooperativeLevel(None, ds.DSSCL_PRIORITY)
sdesc = ds.DSBUFFERDESC()
sdesc.dwFlags = ds.DSBCAPS_STICKYFOCUS | ds.DSBCAPS_CTRLPOSITIONNOTIFY
sdesc.dwBufferBytes = size
sdesc.lpwfxFormat = wfx
buffer = d.CreateSoundBuffer(sdesc, None)
event = win32event.CreateEvent(None, 0, 0, None)
notify = buffer.QueryInterface(ds.IID_IDirectSoundNotify)
notify.SetNotificationPositions((ds.DSBPN_OFFSETSTOP, event))
buffer.Update(0, f.read(size))
buffer.Play(0)
win32event.WaitForSingleObject(event, -1)
def loadwav(wavefname):
d = ds.DirectSoundCreate(None, None)
d.SetCooperativeLevel(None, ds.DSSCL_PRIORITY)
w = wave.open(wavefname, "rb")
sdesc = ds.DSBUFFERDESC()
sdesc.lpwfxFormat = pywintypes.WAVEFORMATEX()
sdesc.lpwfxFormat.wFormatTag = pywintypes.WAVE_FORMAT_PCM
sdesc.lpwfxFormat.nChannels = w.getnchannels()
sdesc.lpwfxFormat.nSamplesPerSec = w.getframerate()
sdesc.lpwfxFormat.nAvgBytesPerSec = w.getnchannels() * w.getsampwidth(
) * w.getframerate()
sdesc.lpwfxFormat.nBlockAlign = w.getnchannels() * w.getsampwidth()
sdesc.lpwfxFormat.wBitsPerSample = w.getsampwidth() * 8
sdesc.dwBufferBytes = w.getnframes() * w.getnchannels() * w.getsampwidth()
sdesc.dwFlags = ds.DSBCAPS_STICKYFOCUS | ds.DSBCAPS_CTRLPOSITIONNOTIFY
buffer = d.CreateSoundBuffer(sdesc, None)
buffer.Update(0, w.readframes(w.getnframes()))
w.close()
return buffer
def test_3_invalid_format(self):
'DSBUFFERDESC invalid lpwfxFormat assignment'
c = ds.DSBUFFERDESC()
self.failUnlessRaises(ValueError, self.invalid_format, c)
def test_1_Type(self):
'DSBUFFERDESC type'
c = ds.DSBUFFERDESC()
self.failUnless(type(c) == ds.DSBUFFERDESCType)
def test_3_invalid_format(self):
"DSBUFFERDESC invalid lpwfxFormat assignment"
c = ds.DSBUFFERDESC()
self.assertRaises(ValueError, self.invalid_format, c)
def test_1_Type(self):
"DSBUFFERDESC type"
c = ds.DSBUFFERDESC()
self.assertTrue(type(c) == ds.DSBUFFERDESCType)
wfx.wBitsPerSample = bitspersample
print("Bits per sample: " + str(bitspersample))
return wfx, datalength
sound_file = sys.argv[1]
fname = os.path.join(os.path.dirname(__file__), sound_file)
print("You want to play file: " + fname)
f = open(fname, 'rb')
#read wav header and unpack
hdr = f.read(WAV_HEADER_SIZE)
wfx, size = wav_header_unpack(hdr)
d = ds.DirectSoundCreate(None, None)
d.SetCooperativeLevel(None, ds.DSSCL_PRIORITY)
sdesc = ds.DSBUFFERDESC()
sdesc.dwFlags = ds.DSBCAPS_STICKYFOCUS | ds.DSBCAPS_CTRLPOSITIONNOTIFY
sdesc.dwBufferBytes = size
sdesc.lpwfxFormat = wfx
buffer = d.CreateSoundBuffer(sdesc, None)
event = win32event.CreateEvent(None, 0, 0, None)
notify = buffer.QueryInterface(ds.IID_IDirectSoundNotify)
notify.SetNotificationPositions((ds.DSBPN_OFFSETSTOP, event))
buffer.Update(0, f.read(size))
buffer.Play(0)
win32event.WaitForSingleObject(event, -1)
def test_1_Type(self):
'DSBUFFERDESC type'
c = ds.DSBUFFERDESC()
self.assertTrue(isinstance(c, ds.DSBUFFERDESCType))
