def _update_play_cursor(self):
if not self._al_source:
return
self._lock.acquire()
context.lock()
# Release spent buffers
processed = al.ALint()
al.alGetSourcei(self._al_source, al.AL_BUFFERS_PROCESSED, processed)
processed = processed.value
if processed:
buffers = (al.ALuint * processed)()
al.alSourceUnqueueBuffers(self._al_source, len(buffers), buffers)
al.alDeleteBuffers(len(buffers), buffers)
context.unlock()
if processed:
if len(self._buffer_timestamps) == processed:
# Underrun, take note of timestamp
self._underrun_timestamp = \
self._buffer_timestamps[-1] + \
self._buffer_sizes[-1] / \
float(self.source_group.audio_format.bytes_per_second)
self._buffer_cursor += sum(self._buffer_sizes[:processed])
del self._buffer_sizes[:processed]
del self._buffer_timestamps[:processed]
if not context.have_1_1:
self._buffer_system_time = time.time()
# Update play cursor using buffer cursor + estimate into current
# buffer
if context.have_1_1:
bytes = al.ALint()
context.lock()
al.alGetSourcei(self._al_source, al.AL_BYTE_OFFSET, bytes)
context.unlock()
if _debug:
print 'got bytes offset', bytes.value
self._play_cursor = self._buffer_cursor + bytes.value
else:
# Interpolate system time past buffer timestamp
self._play_cursor = \
self._buffer_cursor + int(
(time.time() - self._buffer_system_time) * \
self.source_group.audio_format.bytes_per_second)
# Process events
while self._events and self._events[0][0] < self._play_cursor:
_, event = self._events.pop(0)
event._sync_dispatch_to_player(self.player)
self._lock.release()
def _update_play_cursor(self):
if not self._al_source:
return
self._lock.acquire()
context.lock()
# Release spent buffers
processed = al.ALint()
al.alGetSourcei(self._al_source, al.AL_BUFFERS_PROCESSED, processed)
processed = processed.value
if processed:
buffers = (al.ALuint * processed)()
al.alSourceUnqueueBuffers(self._al_source, len(buffers), buffers)
al.alDeleteBuffers(len(buffers), buffers)
context.unlock()
if processed:
if len(self._buffer_timestamps) == processed:
# Underrun, take note of timestamp
self._underrun_timestamp = \
self._buffer_timestamps[-1] + \
self._buffer_sizes[-1] / \
float(self.source_group.audio_format.bytes_per_second)
self._buffer_cursor += sum(self._buffer_sizes[:processed])
del self._buffer_sizes[:processed]
del self._buffer_timestamps[:processed]
if not context.have_1_1:
self._buffer_system_time = time.time()
# Update play cursor using buffer cursor + estimate into current
# buffer
if context.have_1_1:
bytes = al.ALint()
context.lock()
al.alGetSourcei(self._al_source, al.AL_BYTE_OFFSET, bytes)
context.unlock()
if _debug:
print 'got bytes offset', bytes.value
self._play_cursor = self._buffer_cursor + bytes.value
else:
# Interpolate system time past buffer timestamp
self._play_cursor = \
self._buffer_cursor + int(
(time.time() - self._buffer_system_time) * \
self.source_group.audio_format.bytes_per_second)
# Process events
while self._events and self._events[0][0] < self._play_cursor:
_, event = self._events.pop(0)
event._sync_dispatch_to_player(self.player)
self._lock.release()
def delete(self):
"""Delete all sources and free all buffers"""
assert context._lock.locked()
for source, buffers in self._sources.items():
al.alDeleteSources(1, ctypes.byref(ctypes.c_uint(source)))
for b in buffers:
if not al.alIsBuffer(b):
# Protect against implementations that DO free buffers
# when they delete a source - carry on.
if _debug_buffers:
print("Found a bad buffer")
continue
al.alDeleteBuffers(1, ctypes.byref(b))
for b in self._buffers:
al.alDeleteBuffers(1, ctypes.byref(b))
self._buffers = []
self._sources = {}
