def __assetLoadedCb(self, proxy, res, asset, transcoder):
try:
GES.Asset.request_finish(res)
except GLib.Error as e:
if transcoder:
self.emit("error-preparing-asset", asset, proxy, e)
del transcoder
else:
self.__createTranscoder(asset)
return
if not transcoder:
if not self.__assetsMatch(asset, proxy):
return self.__createTranscoder(asset)
else:
transcoder.props.pipeline.props.video_filter.finalize(proxy)
transcoder.props.pipeline.props.audio_filter.finalize(proxy)
del transcoder
if asset.get_info().get_duration() != proxy.get_info().get_duration():
self.error(
"Asset %s (duration=%s) and created proxy %s (duration=%s) do not"
" have the same duration this should *never* happen, please file"
" a bug with the media files." %
(asset.get_id(), Gst.TIME_ARGS(
asset.get_info().get_duration()), proxy.get_id(),
Gst.TIME_ARGS(proxy.get_info().get_duration())))
self.emit("proxy-ready", asset, proxy)
self.__emitProgress(proxy, 100)
def handle_message(data, msg):
if msg.type == Gst.MessageType.ERROR:
err, debug_info = msg.parse_error()
print("Error received from element %s: %s" % (msg.src.get_name(), err),
file=sys.stderr)
print("Debugging information: %s" % debug_info, file=sys.stderr)
data.terminate = True
elif msg.type == Gst.MessageType.EOS:
print("End-Of-Stream reached.")
data.terminate = True
elif msg.type == Gst.MessageType.DURATION_CHANGED:
# The duration has changed, mark the current one as invalid
data.duration = Gst.CLOCK_TIME_NONE
elif msg.type == Gst.MessageType.STATE_CHANGED:
if msg.src == data.playbin:
old_state, new_state, pending_state = msg.parse_state_changed()
print("Pipeline state changed from %s to %s." %
(old_state.value_nick, new_state.value_nick))
# Remember whether we are in the PLAYING state or not
data.playing = (new_state == Gst.State.PLAYING)
if data.playing:
# We just moved to PLAYING. Check if seeking is possible
query = Gst.Query.new_seeking(Gst.Format.TIME)
if data.playbin.query(query):
(_, data.seek_enabled, start, end) = query.parse_seeking()
if data.seek_enabled:
print("Seeking is ENABLED from %s to %s" %
(Gst.TIME_ARGS(start), Gst.TIME_ARGS(end)))
else:
print("Seeking is DISABLED for this stream.")
else:
print("Seeking query failed.", file=sys.stderr)
else:
print("Unexpected message received.", file=sys.stderr)
def do_transform_ip(self, buf: Gst.Buffer) -> Gst.FlowReturn:
policy, prio = threadsched.get_curschedparam()
if policy != threadsched.SCHED_RR:
ret = threadsched.set_curschedparam(threadsched.SCHED_RR, 10)
if ret == 0:
print("gstreamer: moved to RT scheduler")
ts = self.base_time + buf.pts
dt = ts - self.last_buf_ts
self.last_buf_ts = ts
print("buf :", Gst.TIME_ARGS(ts), "dt:", Gst.TIME_ARGS(dt))
return Gst.FlowReturn.OK
def gpio_event(self, channel):
policy, prio = threadsched.get_curschedparam()
if policy != threadsched.SCHED_RR:
ret = threadsched.set_curschedparam(threadsched.SCHED_RR, 10)
if ret == 0:
print("gpio: moved to RT scheduler")
clock = self.get_clock()
# The clock will only be present after the stream got started,
# but GPIO events will come all the time
if (clock):
ts = clock.get_time()
dt = ts - self.last_gpio_ts
self.last_gpio_ts = ts
print("gpio:", Gst.TIME_ARGS(ts), "dt:", Gst.TIME_ARGS(dt))
def position_changed_cb(pipeline, position, scenario, action, wanted_position):
if pipeline._busy_async:
return
if pipeline._next_seek:
return
print(str(wanted_position), str(position))
if wanted_position != position:
scenario.report_simple(
GLib.quark_from_string("scenario::execution-error"),
"Position after seek (%s) does not match wanted one %s" %
(Gst.TIME_ARGS(position), Gst.TIME_ARGS(wanted_position)))
pipeline.disconnect_by_func(position_changed_cb)
action.set_done()
def do_transform_ip(self, buffer):
if self.pts_offset is None:
self.pts_offset = self.first_pts - buffer.pts
buffer.pts += self.pts_offset
Gst.debug("do_transform_ip: timestamp: %s" %
(Gst.TIME_ARGS(buffer.pts)))
return Gst.FlowReturn.OK
def do_transform_ip(self, buffer_out):
Gst.info("timestamp(buffer):%s" % (Gst.TIME_ARGS(buffer_out.pts)))
# Get Frame dimensions
config = buffer_out.pool.get_config()
caps = config['caps']
struct = caps.get_structure(0)
(ok, width) = struct.get_int('width')
if not ok:
raise RuntimeError("Failed to get width")
(ok, height) = struct.get_int('height')
if not ok:
raise RuntimeError("Failed to get height")
mo = buffer_out.mini_object
saved_refcount = mo.refcount
mo.refcount = 1
# for GObject instances, hash() returns the pointer to the C struct
pbuffer = hash(buffer_out)
mapping = _GstMapInfo()
success = _libgst.gst_buffer_map(pbuffer, mapping, Gst.MapFlags.WRITE)
if not success:
raise RuntimeError("Could not map buffer")
else:
ctypes_region = ctypes.cast(mapping.data,
ctypes.POINTER(ctypes.c_byte * mapping.size))
raw_ptr = ctypes_region.contents
# create ctypes array from the raw pointer
ptr = (ctypes.c_byte * mapping.size).from_address(ctypes.addressof(raw_ptr))
# cast array to uint32 to work with RGBA/BGRx data
# FIXME: hardcode caps to only allow 4-byte modes?
ptr = ctypes.cast(ptr, ctypes.POINTER(ctypes.c_uint32))
np_arr = np.ctypeslib.as_array(ptr, shape=(height, width))
# this is fast, just one call into numpy and proably vectorized in C
# if image is BGRx, then this will erase the red channel
np_arr &= 0xff00ffff
# invert colors for top quarter rows
for i in range(height // 4):
np_arr[i] ^= 0x00ffffff
# this is SLOOOOW, multiple calls into numpy for each element
# however, if performance is not a concern
#(for example, processing video offline), you can add
# sync=false to the last pipeline element (sink)
# to avoid the "gst_base_sink_is_too_late" error
#for i in range(height):
# for j in range(width):
# np_arr[i][j] //= 2
_libgst.gst_buffer_unmap(pbuffer, mapping)
mo.refcount = saved_refcount
return Gst.FlowReturn.OK
def stop(loop, pipeline):
_, position = pipeline.query_position(Gst.Format.TIME)
print("Position: %s\r" % Gst.TIME_ARGS(position))
if position > 10 * Gst.SECOND:
loop.quit()
print("Stopping after 10 seconds")
return False
return True
def do_transform_ip(self, buffer_out):
Gst.info("timestamp(buffer):%s" % (Gst.TIME_ARGS(buffer_out.pts)))
if self.__mxnet_detector__ is None:
self.__mxnet_detector__ = self.initializeDetector()
# Get Frame dimensions
config = buffer_out.pool.get_config()
caps = config['caps']
struct = caps.get_structure(0)
(ok, width) = struct.get_int('width')
if not ok:
raise RuntimeError("Failed to get width")
(ok, height) = struct.get_int('height')
if not ok:
raise RuntimeError("Failed to get height")
mo = buffer_out.mini_object
saved_refcount = mo.refcount
mo.refcount = 1
# for GObject instances, hash() returns the pointer to the C struct
pbuffer = hash(buffer_out)
mapping = _GstMapInfo()
success = _libgst.gst_buffer_map(pbuffer, mapping, Gst.MapFlags.WRITE)
if not success:
raise RuntimeError("Could not map buffer")
else:
ctypes_region = ctypes.cast(
mapping.data, ctypes.POINTER(ctypes.c_byte * mapping.size))
raw_ptr = ctypes_region.contents
# create ctypes array from the raw pointer
ptr = (ctypes.c_byte * mapping.size).from_address(
ctypes.addressof(raw_ptr))
# cast array to uint32 to work with RGBA/BGRx data
# FIXME: hardcode caps to only allow 4-byte modes?
ptr = ctypes.cast(ptr, ctypes.POINTER(ctypes.c_uint8))
np_arr = np.ctypeslib.as_array(ptr, shape=(height, width, 4))
cv_img = cv2.imdecode(np_arr, cv2.IMREAD_UNCHANGED)
#self.__mxnet_detector__.process(cv_img, np_arr)
self.__mxnet_detector__.process(np_arr, np_arr)
if False:
cv2.rectangle(np_arr, (10, 10), (100, 100), (0, 255, 0), 4)
_libgst.gst_buffer_unmap(pbuffer, mapping)
mo.refcount = saved_refcount
return Gst.FlowReturn.OK
def timeout(loop, pipeline, w, idx):
_, position = pipeline.query_position(Gst.Format.TIME)
print(
"Position[{}]: {}\r".format(
pipeline.get_property("name"), Gst.TIME_ARGS(position)
)
)
w.update_slider(idx, position)
if position > 5 * Gst.SECOND and position < 6 * Gst.SECOND:
gen_pipe_dot(pipeline, pipeline.get_property("name"))
return True
def chainfunc(self, pad: Gst.Pad, parent,
buffer: Gst.Buffer) -> Gst.FlowReturn:
"""
:param parent: GstPluginPy
"""
# DO SOMETHING
info_str = "{}: int-prop: {}, float-prop: {} ".format(
Gst.TIME_ARGS(buffer.pts), self.int_prop, self.float_prop)
info_str += "bool-prop: {}, str-prop: {}, pyobject-prop: {}".format(
self.bool_prop, self.str_prop, self.pyobject_prop)
Gst.info(info_str)
# *****************
return self.srcpad.push(buffer)
def __update_tooltip(self, event):
"""Sets or clears the tooltip showing info about the hovered line."""
markup = None
if event:
if not event.xdata:
return
xdata = max(self.__line_xs[0], min(event.xdata,
self.__line_xs[-1]))
res, value = self.__source.control_source_get_value(xdata)
assert res
pmin = self.__paramspec.minimum
pmax = self.__paramspec.maximum
value = value * (pmax - pmin) + pmin
# Translators: This is a tooltip for a clip's keyframe curve,
# showing what the keyframe curve affects, the timestamp at
# the mouse cursor location, and the value at that timestamp.
markup = _("Property: %s\nTimestamp: %s\nValue: %s") % (
self.__propertyName, Gst.TIME_ARGS(xdata),
"{:.3f}".format(value))
self.set_tooltip_markup(markup)
def main():
Gst.init(None)
data = CustomData()
# Create the elements
data.playbin = Gst.ElementFactory.make("playbin", "playbin")
if not data.playbin:
print("Not all elements could be created.", file=sys.stderr)
exit(-1)
# Set the URI to play
data.playbin.set_property(
"uri",
"https://www.freedesktop.org/software/gstreamer-sdk/data/media/sintel_trailer-480p.webm"
)
# Start playing
ret = data.playbin.set_state(Gst.State.PLAYING)
if ret == Gst.StateChangeReturn.FAILURE:
print("Unable to set the pipeline to the playing state.",
file=sys.stderr)
exit(-1)
# Listen to the bus
bus = data.playbin.get_bus()
while not data.terminate:
message = bus.timed_pop_filtered(
100 * Gst.MSECOND,
Gst.MessageType.STATE_CHANGED | Gst.MessageType.ERROR
| Gst.MessageType.EOS | Gst.MessageType.DURATION_CHANGED)
# Parse message
if message:
handle_message(data, message)
else:
if data.playing:
fmt = Gst.Format.TIME
current = -1
# Query the current position of the stream
_, current = data.playbin.query_position(fmt)
if not current:
print("Could not query current position", file=sys.stderr)
# If we didn't know it yet, query the stream duration
if data.duration == Gst.CLOCK_TIME_NONE:
_, data.duration = data.playbin.query_duration(fmt)
if not data.duration:
print("Could not query current duration",
file=sys.stderr)
print("Position %s / %s" %
(Gst.TIME_ARGS(current), Gst.TIME_ARGS(data.duration)))
sys.stdout.flush()
# If seeking is enabled, we have not done it yet, and the time is right, seek
if data.seek_enabled and not data.seek_done and current > 10 * Gst.SECOND:
print("\nReached 10s, performing seek...")
data.playbin.seek_simple(
Gst.Format.TIME,
Gst.SeekFlags.FLUSH | Gst.SeekFlags.KEY_UNIT,
30 * Gst.SECOND)
data.seek_done = True
# Free resources
data.playbin.set_state(Gst.State.NULL)
def __asset_loaded_cb(self, proxy, res, asset, transcoder):
try:
GES.Asset.request_finish(res)
except GLib.Error as e:
if transcoder:
self.emit("error-preparing-asset", asset, proxy, e)
del transcoder
else:
self.__create_transcoder(asset)
return
shadow = transcoder and self._is_shadow_transcoder(transcoder)
if not transcoder:
if not self.__assets_match(asset, proxy):
self.__create_transcoder(asset)
return
else:
if transcoder.props.pipeline.props.video_filter:
transcoder.props.pipeline.props.video_filter.finalize()
if transcoder.props.pipeline.props.audio_filter:
transcoder.props.pipeline.props.audio_filter.finalize()
del transcoder
asset_duration = asset_get_duration(asset)
proxy_duration = asset_get_duration(proxy)
if asset_duration != proxy_duration:
duration = min(asset_duration, proxy_duration)
self.info(
"Resetting %s duration from %s to %s as"
" new proxy has a different duration", asset.props.id,
Gst.TIME_ARGS(asset_duration), Gst.TIME_ARGS(duration))
asset.set_uint64(ASSET_DURATION_META, duration)
proxy.set_uint64(ASSET_DURATION_META, duration)
target_uri = self.get_target_uri(asset)
for clip in self.app.project_manager.current_project.ges_timeline.iter_clips(
):
if not isinstance(clip, GES.UriClip):
continue
if self.get_target_uri(clip.props.uri) == target_uri:
if clip.props.in_point + clip.props.duration > duration:
new_duration = duration - clip.props.in_point
if new_duration > 0:
self.warning(
"%s resetting duration to %s as"
" new proxy has a shorter duration", clip,
Gst.TIME_ARGS(new_duration))
clip.set_duration(new_duration)
else:
new_inpoint = new_duration - clip.props.in_point
self.error(
"%s resetting duration to %s"
" and inpoint to %s as the proxy"
" is shorter", clip,
Gst.TIME_ARGS(new_duration),
Gst.TIME_ARGS(new_inpoint))
clip.set_inpoint(new_inpoint)
clip.set_duration(duration - new_inpoint)
clip.set_max_duration(duration)
if shadow:
self.app.project_manager.current_project.finalize_proxy(proxy)
else:
self.emit("proxy-ready", asset, proxy)
self.__emit_progress(proxy, 100)
def editContainer(scenario, action):
timeline = get_pipeline(scenario).props.timeline
container = timeline.get_element(action.structure["container-name"])
if container is None:
for layer in timeline.get_layers():
for clip in layer.get_clips():
Gst.info("Exisiting clip: %s" % clip.get_name())
scenario.report_simple(GLib.quark_from_string("scenario::execution-error"),
"Could not find container: %s"
% action.structure["container-name"])
return 1
res, position = GstValidate.action_get_clocktime(scenario, action, "position")
layer_prio = action.structure["new-layer-priority"]
if res is False:
return 0
edge = get_edge(action.structure)
container_ui = container.ui
setEditingMode(timeline, scenario, action)
y = 21 - container_ui.translate_coordinates(timeline.ui, 0, 0)[1]
if container.get_layer().get_priority() != layer_prio and layer_prio != -1:
try:
layer = timeline.get_layers()[layer_prio]
Gst.info("Y is: %s Realized?? %s Priori: %s layer prio: %s"
% (layer.ui.get_allocation().y,
container_ui.get_realized(),
container.get_layer().get_priority(),
layer_prio))
y = layer.ui.get_allocation().y - container_ui.translate_coordinates(timeline.ui, 0, 0)[1]
if y < 0:
y += 21
elif y > 0:
y -= 21
except IndexError:
if layer_prio == -1:
y = -5
else:
layer = timeline.get_layers()[-1]
alloc = layer.ui.get_allocation()
y = alloc.y + alloc.height + 10 - container_ui.translate_coordinates(timeline.ui, 0, 0)[1]
if not hasattr(scenario, "last_edge"):
scenario.last_edge = edge
if not hasattr(scenario, "dragging") or scenario.dragging is False \
or scenario.last_edge != edge:
event_widget = container.ui
if isinstance(container, GES.SourceClip):
if edge == GES.Edge.EDGE_START:
event_widget = container.ui.leftHandle
elif edge == GES.Edge.EDGE_END:
event_widget = container.ui.rightHandle
scenario.dragging = True
event = Event(Gdk.EventType.BUTTON_PRESS, button=1, y=y)
with mock.patch.object(Gtk, "get_event_widget") as get_event_widget:
get_event_widget.return_value = event_widget
timeline.ui._button_press_event_cb(event_widget, event)
event = Event(Gdk.EventType.MOTION_NOTIFY, button=1,
x=Zoomable.nsToPixelAccurate(position) -
container_ui.translate_coordinates(timeline.ui.layout.layers_vbox, 0, 0)[0],
y=y, state=Gdk.ModifierType.BUTTON1_MASK)
with mock.patch.object(Gtk, "get_event_widget") as get_event_widget:
get_event_widget.return_value = container.ui
timeline.ui._motion_notify_event_cb(None, event)
GstValidate.print_action(action, "Editing %s to %s in %s mode, edge: %s "
"with new layer prio: %d\n" % (action.structure["container-name"],
Gst.TIME_ARGS(position),
scenario.last_mode,
edge,
layer_prio))
_releaseButtonIfNeeded(scenario, action, timeline, container, edge, layer_prio,
position, y)
scenario.last_edge = edge
return 1
def snapping_started_cb(timeline, element1, element2, dist, self):
Gst.error(
"Here %s %s" %
(Gst.TIME_ARGS(element1.props.start + element1.props.duration),
Gst.TIME_ARGS(element2.props.start)))
not_called.append("No snapping should happen")
def testOneSecond(self):
self.assertEquals(Gst.TIME_ARGS(Gst.SECOND), '0:00:01.000000000')
def testClockTimeNone(self):
self.assertEquals(Gst.TIME_ARGS(Gst.CLOCK_TIME_NONE),
'CLOCK_TIME_NONE')
def do_transform_ip(self, buffer):
Gst.info("timestamp(buffer):%s" % (Gst.TIME_ARGS(buffer.pts)))
return Gst.FlowReturn.OK
def do_render(self, buffer):
Gst.info("timestamp(buffer):%s" % (Gst.TIME_ARGS(buffer.pts)))
return Gst.FlowReturn.OK