def _create_next_thumb(self):
if not self.wishlist or not self.queue:
# nothing left to do
self.debug("Thumbnails generation complete")
self.stopGeneration()
self.thumb_cache.commit()
return
else:
self.debug("Missing %d thumbs", len(self.wishlist))
wish = self._get_wish()
if wish:
time = wish
self.queue.remove(wish)
else:
time = self.queue.pop(0)
self.log('Creating thumb for "%s"' % filename_from_uri(self.uri))
# append the time to the end of the queue so that if this seek fails
# another try will be started later
self.queue.append(time)
self.pipeline.seek(1.0,
Gst.Format.TIME, Gst.SeekFlags.FLUSH | Gst.SeekFlags.ACCURATE,
Gst.SeekType.SET, time,
Gst.SeekType.NONE, -1)
# Remove the GSource
return False
def _startThumbnailing(self):
if not self.pipeline:
# Can happen if stopGeneration is called because the clip has been
# removed from the timeline after the PreviewGeneratorManager
# started this job.
return
# self.props.width_request = self.nsToPixel(self.ges_elem.get_asset().get_filesource_asset().props.duration)
# self.props.width = self.nsToPixel(self.ges_elem.get_asset().get_filesource_asset().props.duration)
self.debug('Now generating thumbnails for: %s',
filename_from_uri(self.uri))
query_success, duration = self.pipeline.query_duration(Gst.Format.TIME)
if not query_success or duration == -1:
self.debug("Could not determine duration of: %s", self.uri)
duration = self.ges_elem.props.duration
self.queue = list(range(0, duration, self.thumb_period))
self._checkCPU()
if self.ges_elem.props.in_point != 0:
adj = self.get_hadjustment()
adj.props.page_size = 1.0
adj.props.value = Zoomable.nsToPixel(self.ges_elem.props.in_point)
# self._addVisibleThumbnails()
# Save periodically to avoid the common situation where the user exits
# the app before a long clip has been fully thumbnailed.
# Spread timeouts between 30-80 secs to avoid concurrent disk writes.
random_time = random.randrange(30, 80)
GLib.timeout_add_seconds(random_time, self._autosave)
# Remove the GSource
return False
def _create_next_thumb(self):
if not self.wishlist or not self.queue:
# nothing left to do
self.debug("Thumbnails generation complete")
self.stopGeneration()
self.thumb_cache.commit()
return
else:
self.debug("Missing %d thumbs", len(self.wishlist))
wish = self._get_wish()
if wish:
time = wish
self.queue.remove(wish)
else:
time = self.queue.pop(0)
self.log('Creating thumb for "%s"' % filename_from_uri(self.uri))
# append the time to the end of the queue so that if this seek fails
# another try will be started later
self.queue.append(time)
self.pipeline.seek(1.0,
Gst.Format.TIME, Gst.SeekFlags.FLUSH | Gst.SeekFlags.ACCURATE,
Gst.SeekType.SET, time,
Gst.SeekType.NONE, -1)
# Remove the GSource
return False
def _startThumbnailing(self):
if not self.pipeline:
# Can happen if stopGeneration is called because the clip has been
# removed from the timeline after the PreviewGeneratorManager
# started this job.
return
self.debug('Now generating thumbnails for: %s', filename_from_uri(self.uri))
query_success, duration = self.pipeline.query_duration(Gst.Format.TIME)
if not query_success or duration == -1:
self.debug("Could not determine duration of: %s", self.uri)
duration = self.duration
else:
self.duration = duration
self.queue = range(0, duration, self.thumb_period)
self._checkCPU()
self._addVisibleThumbnails()
# Save periodically to avoid the common situation where the user exits
# the app before a long clip has been fully thumbnailed.
# Spread timeouts between 30-80 secs to avoid concurrent disk writes.
random_time = randrange(30, 80)
GLib.timeout_add_seconds(random_time, self._autosave)
# Remove the GSource
return False
def _startThumbnailing(self):
self.debug('Now generating thumbnails for "%s"' % filename_from_uri(self.uri))
self.queue = []
query_success, duration = self.pipeline.query_duration(Gst.Format.TIME)
if not query_success or duration == -1:
self.debug("Could not determine duration of %s" % self.uri)
duration = self.duration
else:
self.duration = duration
current_time = 0
while current_time < duration:
self.queue.append(current_time)
current_time += self.thumb_period
self._checkCPU()
self._addVisibleThumbnails()
# Save periodically to avoid the common situation where the user exits
# the app before a long clip has been fully thumbnailed.
# Spread timeouts between 30-80 secs to avoid concurrent disk writes.
random_time = randrange(30, 80)
GLib.timeout_add_seconds(random_time, self._autosave)
# Remove the GSource
return False
def _startThumbnailing(self):
if not self.pipeline:
# Can happen if stopGeneration is called because the clip has been
# removed from the timeline after the PreviewGeneratorManager
# started this job.
return
self.debug('Now generating thumbnails for: %s', filename_from_uri(self.uri))
query_success, duration = self.pipeline.query_duration(Gst.Format.TIME)
if not query_success or duration == -1:
self.debug("Could not determine duration of: %s", self.uri)
duration = self.duration
else:
self.duration = duration
self.queue = list(range(0, duration, self.thumb_period))
self._checkCPU()
self._addVisibleThumbnails()
# Save periodically to avoid the common situation where the user exits
# the app before a long clip has been fully thumbnailed.
# Spread timeouts between 30-80 secs to avoid concurrent disk writes.
random_time = randrange(30, 80)
GLib.timeout_add_seconds(random_time, self._autosave)
# Remove the GSource
return False
def _startThumbnailing(self):
if not self.pipeline:
# Can happen if stopGeneration is called because the clip has been
# removed from the timeline after the PreviewGeneratorManager
# started this job.
return
# self.props.width_request = self.nsToPixel(self.ges_elem.get_asset().get_filesource_asset().props.duration)
# self.props.width = self.nsToPixel(self.ges_elem.get_asset().get_filesource_asset().props.duration)
self.debug(
'Now generating thumbnails for: %s', filename_from_uri(self.uri))
query_success, duration = self.pipeline.query_duration(Gst.Format.TIME)
if not query_success or duration == -1:
self.debug("Could not determine duration of: %s", self.uri)
duration = self.ges_elem.props.duration
self.queue = list(range(0, duration, self.thumb_period))
self._checkCPU()
if self.ges_elem.props.in_point != 0:
adj = self.get_hadjustment()
adj.props.page_size = 1.0
adj.props.value = Zoomable.nsToPixel(self.ges_elem.props.in_point)
# self._addVisibleThumbnails()
# Save periodically to avoid the common situation where the user exits
# the app before a long clip has been fully thumbnailed.
# Spread timeouts between 30-80 secs to avoid concurrent disk writes.
random_time = random.randrange(30, 80)
GLib.timeout_add_seconds(random_time, self._autosave)
# Remove the GSource
return False
def startLevelsDiscoveryWhenIdle(self):
"""
Start processing waveform (whenever possible)
"""
self.debug('Waiting for UI to become idle for: %s',
filename_from_uri(self._uri))
GLib.idle_add(self._startLevelsDiscovery, priority=GLib.PRIORITY_LOW)
def __init__(self, uri):
Loggable.__init__(self)
self._filehash = hash_file(Gst.uri_get_location(uri))
self._filename = filename_from_uri(uri)
thumbs_cache_dir = get_dir(os.path.join(xdg_cache_home(), "thumbs"))
dbfile = os.path.join(thumbs_cache_dir, self._filehash)
self._db = sqlite3.connect(dbfile)
self._cur = self._db.cursor() # Use this for normal db operations
self._cur.execute("CREATE TABLE IF NOT EXISTS Thumbs\
(Time INTEGER NOT NULL PRIMARY KEY,\
Jpeg BLOB NOT NULL)")
def _checkCPU(self):
"""
Check the CPU usage and adjust the time interval (+10 or -10%) at
which the next thumbnail will be generated. Even then, it will only
happen when the gobject loop is idle to avoid blocking the UI.
"""
usage_percent = self.cpu_usage_tracker.usage()
if usage_percent < THUMBNAILS_CPU_USAGE:
self.interval *= 0.9
self.log(
'Thumbnailing sped up (+10%%) to a %.1f ms interval for "%s"' %
(self.interval, filename_from_uri(self.uri)))
else:
self.interval *= 1.1
self.log(
'Thumbnailing slowed down (-10%%) to a %.1f ms interval for "%s"' %
(self.interval, filename_from_uri(self.uri)))
self.cpu_usage_tracker.reset()
self._thumb_cb_id = GLib.timeout_add(
self.interval, self._create_next_thumb)
def _checkCPU(self):
"""
Check the CPU usage and adjust the time interval (+10 or -10%) at
which the next thumbnail will be generated. Even then, it will only
happen when the gobject loop is idle to avoid blocking the UI.
"""
usage_percent = self.cpu_usage_tracker.usage()
if usage_percent < THUMBNAILS_CPU_USAGE:
self.interval *= 0.9
self.log(
'Thumbnailing sped up (+10%%) to a %.1f ms interval for "%s"' %
(self.interval, filename_from_uri(self.uri)))
else:
self.interval *= 1.1
self.log(
'Thumbnailing slowed down (-10%%) to a %.1f ms interval for "%s"'
% (self.interval, filename_from_uri(self.uri)))
self.cpu_usage_tracker.reset()
self._thumb_cb_id = GLib.timeout_add(self.interval,
self._create_next_thumb)
def __init__(self, uri):
Loggable.__init__(self)
self._filehash = hash_file(Gst.uri_get_location(uri))
self._filename = filename_from_uri(uri)
thumbs_cache_dir = get_dir(os.path.join(xdg_cache_home(), "thumbs"))
dbfile = os.path.join(thumbs_cache_dir, self._filehash)
self._db = sqlite3.connect(dbfile)
self._cur = self._db.cursor() # Use this for normal db operations
self._cur.execute("CREATE TABLE IF NOT EXISTS Thumbs\
(Time INTEGER NOT NULL PRIMARY KEY,\
Jpeg BLOB NOT NULL)")
def _startLevelsDiscovery(self):
self.log('Preparing waveforms for "%s"' % filename_from_uri(self._uri))
filename = hash_file(Gst.uri_get_location(self._uri)) + ".wave"
cache_dir = get_dir(os.path.join(xdg_cache_home(), "waves"))
filename = cache_dir + "/" + filename
if os.path.exists(filename):
self.samples = pickle.load(open(filename, "rb"))
self._startRendering()
else:
self.wavefile = filename
self._launchPipeline()
def _startLevelsDiscovery(self):
self.log('Preparing waveforms for "%s"' % filename_from_uri(self._uri))
filename = hash_file(Gst.uri_get_location(self._uri)) + ".wave"
cache_dir = get_dir(os.path.join(xdg_cache_home(), "waves"))
filename = cache_dir + "/" + filename
if os.path.exists(filename):
self.samples = pickle.load(open(filename, "rb"))
self._startRendering()
else:
self.wavefile = filename
self._launchPipeline()
def __init__(self, uri):
Loggable.__init__(self)
# TODO: replace with utils.misc.hash_file
self._filehash = hash_file(Gst.uri_get_location(uri))
self._filename = filename_from_uri(uri)
# TODO: replace with pitivi.settings.xdg_cache_home()
cache_dir = get_dir(os.path.join(xdg_dirs.xdg_cache_home, "pitivi"), autocreate)
dbfile = os.path.join(get_dir(os.path.join(cache_dir, "thumbs")), self._filehash)
self._db = sqlite3.connect(dbfile)
self._cur = self._db.cursor() # Use this for normal db operations
self._cur.execute("CREATE TABLE IF NOT EXISTS Thumbs\
(Time INTEGER NOT NULL PRIMARY KEY,\
Jpeg BLOB NOT NULL)")
def _launchPipeline(self):
self.debug('Now generating waveforms for "%s"' % filename_from_uri(self._uri))
self.peaks = None
self.pipeline = Gst.parse_launch("uridecodebin name=decode uri=" + self._uri + " ! audioconvert ! level name=wavelevel interval=10000000 post-messages=true ! fakesink qos=false")
self._level = self.pipeline.get_by_name("wavelevel")
decode = self.pipeline.get_by_name("decode")
decode.connect("autoplug-select", self._autoplugSelectCb)
bus = self.pipeline.get_bus()
bus.add_signal_watch()
self.nSamples = self.bElement.get_parent().get_asset().get_duration() / 10000000
bus.connect("message", self._messageCb)
self.becomeControlled()
def _launchPipeline(self):
self.debug('Now generating waveforms for: %s', filename_from_uri(self._uri))
self.peaks = None
self.pipeline = Gst.parse_launch("uridecodebin name=decode uri=" + self._uri + " ! audioconvert ! level name=wavelevel interval=10000000 post-messages=true ! fakesink qos=false name=faked")
faked = self.pipeline.get_by_name("faked")
faked.props.sync = True
self._wavelevel = self.pipeline.get_by_name("wavelevel")
decode = self.pipeline.get_by_name("decode")
decode.connect("autoplug-select", self._autoplugSelectCb)
bus = self.pipeline.get_bus()
bus.add_signal_watch()
self.nSamples = self.bElement.get_parent().get_asset().get_duration() / 10000000
bus.connect("message", self._busMessageCb)
self.becomeControlled()
def _launchPipeline(self):
self.debug(
'Now generating waveforms for: %s', filename_from_uri(self._uri))
self.pipeline = Gst.parse_launch("uridecodebin name=decode uri=" +
self._uri + " ! waveformbin name=wave"
" ! fakesink qos=false name=faked")
faked = self.pipeline.get_by_name("faked")
faked.props.sync = True
self._wavebin = self.pipeline.get_by_name("wave")
asset = self.ges_elem.get_parent().get_asset()
self._wavebin.props.uri = asset.get_id()
self._wavebin.props.duration = asset.get_duration()
decode = self.pipeline.get_by_name("decode")
decode.connect("autoplug-select", self._autoplugSelectCb)
bus = self.pipeline.get_bus()
bus.add_signal_watch()
asset = self.ges_elem.get_parent().get_asset()
self.n_samples = asset.get_duration() / SAMPLE_DURATION
bus.connect("message", self._busMessageCb)
self.becomeControlled()
def _launchPipeline(self):
self.debug('Now generating waveforms for: %s',
filename_from_uri(self._uri))
self.pipeline = Gst.parse_launch("uridecodebin name=decode uri=" +
self._uri + " ! waveformbin name=wave"
" ! fakesink qos=false name=faked")
faked = self.pipeline.get_by_name("faked")
faked.props.sync = True
self._wavebin = self.pipeline.get_by_name("wave")
asset = self.ges_elem.get_parent().get_asset()
self._wavebin.props.uri = asset.get_id()
self._wavebin.props.duration = asset.get_duration()
decode = self.pipeline.get_by_name("decode")
decode.connect("autoplug-select", self._autoplugSelectCb)
bus = self.pipeline.get_bus()
bus.add_signal_watch()
asset = self.ges_elem.get_parent().get_asset()
self.n_samples = asset.get_duration() / SAMPLE_DURATION
bus.connect("message", self._busMessageCb)
self.becomeControlled()
def do_query_tooltip(self, x, y, keyboard_mode, tooltip):
tooltip.set_markup(
misc.filename_from_uri(self.ges_clip.get_asset().props.id))
return True
def do_query_tooltip(self, x, y, keyboard_mode, tooltip):
tooltip.set_markup(misc.filename_from_uri(
self.bClip.get_asset().props.id))
return True
def __init__(self, layer, ges_clip):
SourceClip.__init__(self, layer, ges_clip)
self.props.has_tooltip = True
self.set_tooltip_markup(misc.filename_from_uri(ges_clip.get_uri()))
def _checkCPU(self):
"""
Check the CPU usage and adjust the time interval (+10 or -10%) at
which the next thumbnail will be generated. Even then, it will only
happen when the gobject loop is idle to avoid blocking the UI.
"""
deltaTime = (datetime.now() - self.lastMoment).total_seconds()
deltaUsage = resource.getrusage(resource.RUSAGE_SELF).ru_utime - self.lastUsage.ru_utime
usage_percent = float(deltaUsage) / deltaTime * 100
if usage_percent < THUMBNAILS_CPU_USAGE:
self.interval *= 0.9
self.log('Thumbnailing sped up (+10%%) to a %.1f ms interval for "%s"' % (self.interval, filename_from_uri(self.uri)))
else:
self.interval *= 1.1
self.log('Thumbnailing slowed down (-10%%) to a %.1f ms interval for "%s"' % (self.interval, filename_from_uri(self.uri)))
self.lastMoment = datetime.now()
self.lastUsage = resource.getrusage(resource.RUSAGE_SELF)
self._thumb_cb_id = GLib.timeout_add(self.interval, self._create_next_thumb)
return False
def __init__(self, layer, bClip):
super(UriClip, self).__init__(layer, bClip)
self.props.has_tooltip = True
self.set_tooltip_markup(misc.filename_from_uri(bClip.get_uri()))
def _startThumbnailingWhenIdle(self):
self.debug('Waiting for UI to become idle for: %s', filename_from_uri(self.uri))
GLib.idle_add(self._startThumbnailing, priority=GLib.PRIORITY_LOW)
def startLevelsDiscoveryWhenIdle(self):
self.debug('Waiting for UI to become idle for: %s', filename_from_uri(self._uri))
GLib.idle_add(self._startLevelsDiscovery, priority=GLib.PRIORITY_LOW)
def startLevelsDiscoveryWhenIdle(self):
"""Starts processing waveform (whenever possible)."""
self.debug('Waiting for UI to become idle for: %s',
filename_from_uri(self._uri))
GLib.idle_add(self._startLevelsDiscovery, priority=GLib.PRIORITY_LOW)
def __init__(self, layer, ges_clip):
SourceClip.__init__(self, layer, ges_clip)
self.props.has_tooltip = True
self.set_tooltip_markup(misc.filename_from_uri(ges_clip.get_uri()))
def _startThumbnailingWhenIdle(self):
self.debug('Waiting for UI to become idle for: %s', filename_from_uri(self.uri))
GLib.idle_add(self._startThumbnailing, priority=GLib.PRIORITY_LOW)
def __init__(self, layer, bClip):
super(UriClip, self).__init__(layer, bClip)
self.set_tooltip_markup(misc.filename_from_uri(bClip.get_uri()))
self.bClip.selected.connect("selected-changed", self._selectedChangedCb)
def startLevelsDiscoveryWhenIdle(self):
self.debug('Waiting for UI to become idle for: %s', filename_from_uri(self._uri))
GLib.idle_add(self._startLevelsDiscovery, priority=GLib.PRIORITY_LOW)
