def onFrame(self, jpg, frameTime):
# We could pass frameTime here to try to compensate for lag,
# but it ended up looking worse in a test. One suspect is the
# rpi clock drift might be worse than the lag. The value of
# (now - frameTime) stutters regularly between 40ms, 140ms,
# and 200ms.
position = self.musicTime.getLatest()
for d, filename in self._snapshotRequests:
with open(filename, 'w') as out:
out.write(jpg)
d.callback(filename)
self._snapshotRequests[:] = []
if not position['song']:
self.updateLiveFromTemp(jpg)
return
outDir = takeDir(songDir(position['song']), position['started'])
outFilename = "%s/%08.03f.jpg" % (outDir, position['t'])
if os.path.exists(outFilename): # we're paused on one time
self.updateLiveFromTemp(jpg)
return
try:
os.makedirs(outDir)
except OSError:
pass
with open(outFilename, 'w') as out:
out.write(jpg)
self.updateLiveFromFile(outFilename)
# if you're selecting the text while gtk is updating it,
# you can get a crash in xcb_io
if getattr(self, '_lastRecText', None) != outDir:
with gtk.gdk.lock:
self.recordingTo.set_text(outDir)
self._lastRecText = outDir
def saveImg(self, position, img, bufferTimestamp):
if not position['song']:
return
t1 = time.time()
outDir = takeDir(songDir(position['song']), position['started'])
outFilename = "%s/%08.03f.jpg" % (outDir, position['t'])
if os.path.exists(outFilename): # we're paused on one time
return
try:
os.makedirs(outDir)
except OSError:
pass
img.save(outFilename)
now = time.time()
log.info("wrote %s delay of %.2fms, took %.2fms",
outFilename,
(now - self.lastTime) * 1000,
(now - t1) * 1000)
self.updateRecordingTo(outDir)
self.lastTime = now
