def _push_sample(self, sample):
# Calculate whether we need to draw any annotations on the output video.
now = sample.time
annotations = []
with self.annotations_lock:
# Remove expired annotations
self.text_annotations = [
x for x in self.text_annotations if now < x.end_time
]
current_texts = [x for x in self.text_annotations if x.time <= now]
for annotation in list(self.annotations):
if annotation.time == now:
annotations.append(annotation)
if now >= annotation.time:
self.annotations.remove(annotation)
sample = gst_sample_make_writable(sample)
img = array_from_sample(sample, readwrite=True)
# Text:
_draw_text(img,
datetime.datetime.now().strftime("%H:%M:%S.%f")[:-4],
(10, 30), (255, 255, 255))
for i, x in enumerate(reversed(current_texts)):
origin = (10, (i + 2) * 30)
age = float(now - x.time) / 3
color = (int(255 * max([1 - age, 0.5])), ) * 3
_draw_text(img, x.text, origin, color)
# Regions:
for annotation in annotations:
annotation.draw(img)
self.appsrc.props.caps = sample.get_caps()
self.appsrc.emit("push-buffer", sample.get_buffer())
self._sample_count += 1
def _push_sample(self, sample):
# Calculate whether we need to draw any annotations on the output video.
now = sample.time
annotations = []
with self.annotations_lock:
# Remove expired annotations
self.text_annotations = [x for x in self.text_annotations
if now < x.end_time]
current_texts = [x for x in self.text_annotations if x.time <= now]
for annotation in list(self.annotations):
if annotation.time == now:
annotations.append(annotation)
if now >= annotation.time:
self.annotations.remove(annotation)
sample = gst_sample_make_writable(sample)
img = array_from_sample(sample, readwrite=True)
# Text:
_draw_text(
img, datetime.datetime.now().strftime("%H:%M:%S.%f")[:-4],
(10, 30), (255, 255, 255))
for i, x in enumerate(reversed(current_texts)):
origin = (10, (i + 2) * 30)
age = float(now - x.time) / 3
color = (int(255 * max([1 - age, 0.5])),) * 3
_draw_text(img, x.text, origin, color)
# Regions:
for annotation in annotations:
annotation.draw(img)
self.appsrc.props.caps = sample.get_caps()
self.appsrc.emit("push-buffer", sample.get_buffer())
self._sample_count += 1
def _push_sample(self, sample):
# Calculate whether we need to draw any annotations on the output video.
now = sample.time
annotations = []
with self.annotations_lock:
# Remove expired annotations
self.text_annotations = [x for x in self.text_annotations
if now < x.end_time]
current_texts = [x for x in self.text_annotations if x.time <= now]
for annotation in list(self.annotations):
if annotation.time == now:
annotations.append(annotation)
if now >= annotation.time:
self.annotations.remove(annotation)
sample = gst_sample_make_writable(sample)
img = array_from_sample(sample, readwrite=True)
# Text:
_draw_text(
img,
datetime.datetime.fromtimestamp(now).strftime("%H:%M:%S.%f")[:-4],
(10, 30), (255, 255, 255))
for i, x in enumerate(reversed(current_texts)):
origin = (10, (i + 2) * 30)
age = float(now - x.time) / 3
color = (native(int(255 * max([1 - age, 0.5]))).__int__(),) * 3
_draw_text(img, x.text, origin, color)
# Regions:
for annotation in annotations:
_draw_annotation(img, annotation)
APPSRC_LIMIT_BYTES = 100 * 1024 * 1024 # 100MB
if self.appsrc.props.current_level_bytes > APPSRC_LIMIT_BYTES:
# appsrc is backed-up, perhaps something's gone wrong. We don't
# want to use up all RAM, so let's drop the buffer on the floor.
if not self._appsrc_was_full:
warn("sink pipeline appsrc is full, dropping buffers from now "
"on")
self._appsrc_was_full = True
return
elif self._appsrc_was_full:
debug("sink pipeline appsrc no longer full, pushing buffers again")
self._appsrc_was_full = False
self.appsrc.props.caps = sample.get_caps()
self.appsrc.emit("push-buffer", sample.get_buffer())
self._sample_count += 1