def test_link_subsitite_masks(self):
import os
def imageName(x):
return None, x
createMovie(
'test_link1.m4v',
lambda: np.random.randint(0, 255,
(720, 480, 3), dtype='uint8'), 40)
self.addFileToRemove('test_link1.m4v')
createMovie(
'test_link2.m4v',
lambda: np.random.randint(0, 255,
(720, 480, 3), dtype='uint8'), 40)
self.addFileToRemove('test_link2.m4v')
masks = video_tools.formMaskDiff('test_link1.m4v', 'test_link2.m4v',
'link_1_2_cmp', '-')
createMovie(
'test_link3.m4v',
lambda: np.random.randint(0, 255,
(720, 480, 3), dtype='uint8'), 30)
self.addFileToRemove('test_link3.m4v')
link_tool = scenario_model.VideoVideoLinkTool()
model = Mock()
model.getImageAndName = imageName
model.G = Mock()
model.G.dir = '.'
subs = link_tool.addSubstituteMasks('test_link1.m4v',
'test_link2.m4v',
model,
'-',
arguments={'Start Time': '11'},
filename='test_link3.m4v')
self.assertEqual(1, len(subs))
self.assertEqual(30, video_tools.get_frames_from_segment(subs[0]))
self.assertEqual(11, video_tools.get_start_frame_from_segment(subs[0]))
self.assertTrue(
os.path.exists(video_tools.get_file_from_segment(subs[0])))
self.addFileToRemove(video_tools.get_file_from_segment(subs[0]))
def cleanup_temporary_files(probes=[], scModel=None):
files_to_remove = []
used_hdf5 = ['']
used_masks = ['']
for frm, to in scModel.G.get_edges():
edge = scModel.G.get_edge(frm, to)
input_mask = getValue(edge, 'inputmaskname', '')
video_input_mask = getValue(edge, 'arguments.videomaskname', '')
subs = getValue(edge, 'substitute videomasks', [])
for sub in subs:
hdf5 = get_file_from_segment(sub)
used_hdf5.append(hdf5)
mask = getValue(edge, 'maskname', '')
used_masks.append(input_mask)
used_masks.append(video_input_mask)
used_masks.append(mask)
videomasks = getValue(edge, 'videomasks', [])
for mask in videomasks:
hdf5 = get_file_from_segment(mask)
used_hdf5.append(hdf5)
used_hdf5 = set(used_hdf5)
used_masks = set(used_masks)
for probe in probes:
mask = probe.targetMaskFileName if probe.targetMaskFileName != None else ''
if os.path.basename(mask) not in used_masks:
files_to_remove.append(mask)
if probe.targetVideoSegments != None:
for segment in probe.targetVideoSegments:
hdf5 = segment.filename if segment.filename != None else ''
if os.path.basename(hdf5) not in used_hdf5:
files_to_remove.append(hdf5)
files_to_remove = set(files_to_remove)
for _file in files_to_remove:
try:
os.remove(os.path.join(scModel.get_dir(), _file))
except OSError:
pass
def read_masks(self, mask_set):
from maskgen import tool_set
r = []
for segment in mask_set:
reader = tool_set.GrayBlockReader(
video_tools.get_file_from_segment(segment))
r.append({
'start_time': reader.current_frame_time(),
'start_frame': reader.current_frame(),
'frames': reader.length()
})
return r
def test_video_video_link_tool(self):
from maskgen.scenario_model import VideoVideoLinkTool
from maskgen.software_loader import Operation
from maskgen.video_tools import get_end_frame_from_segment, get_file_from_segment
from maskgen.image_wrap import ImageWrapper
import os
import numpy as np
def create_zero(h, w):
return ImageWrapper(np.zeros((h, w), dtype='uint8'))
vida = self.locateFile('videos/sample1.mov')
vidb = self.locateFile('videos/sample1_swap.mov')
image_values = {
'a': (create_zero(300, 300), vida),
'b': (create_zero(300, 300), vidb)
}
def get_image(arg):
return image_values[arg]
tool = VideoVideoLinkTool()
scModel = Mock()
scModel.gopLoader = Mock()
scModel.G.dir = '.'
scModel.gopLoader.getOperationWithGroups = Mock(
return_value=Operation(name='test', category='test'))
scModel.getImageAndName = get_image
mask, analysis, errors = tool.compareImages('a',
'b',
scModel,
'Normalization',
arguments={
'aggregate': 'sum',
'minimum threshold': 1
},
analysis_params={})
self.assertEqual(0, len(errors))
self.assertEqual((640, 480), mask.size)
self.assertEqual(1, len(analysis['videomasks']))
self.assertEqual(803,
get_end_frame_from_segment(analysis['videomasks'][0]))
self.assertTrue(
os.path.exists(get_file_from_segment(analysis['videomasks'][0])))
def test_zip_zip_link_tool(self):
from maskgen.scenario_model import ZipZipLinkTool
from maskgen.software_loader import Operation
from maskgen.video_tools import get_end_frame_from_segment, get_file_from_segment
from maskgen.tool_set import ZipWriter
from maskgen.image_wrap import ImageWrapper
import os
import numpy as np
def create_zero(h, w):
return ImageWrapper(np.zeros((h, w), dtype='uint8'))
w = ZipWriter('v1.zip')
for i in range(2):
w.write(np.random.randint(0, 255, (300, 300, 3)))
w.release()
self.addFileToRemove('v1.zip')
w = ZipWriter('v2.zip')
for i in range(2):
w.write(np.random.randint(0, 255, (300, 300, 3)))
w.release()
self.addFileToRemove('v2.zip')
image_values = {
'a': (create_zero(300, 300), 'v1.zip'),
'b': (create_zero(300, 300), 'v2.zip')
}
def get_image(arg):
return image_values[arg]
tool = ZipZipLinkTool()
scModel = Mock()
scModel.gopLoader = Mock()
scModel.G.dir = '.'
scModel.gopLoader.getOperationWithGroups = Mock(
return_value=Operation(name='test', category='test'))
scModel.getImageAndName = get_image
mask, analysis, errors = tool.compareImages('a',
'b',
scModel,
'Normalization',
arguments={},
analysis_params={})
self.assertEqual(0, len(errors))
self.assertEqual((300, 300), mask.size)
self.assertEqual(1, len(analysis['videomasks']))
self.assertEqual(2,
get_end_frame_from_segment(analysis['videomasks'][0]))
self.assertTrue(
os.path.exists(get_file_from_segment(analysis['videomasks'][0])))
w = ZipWriter('v1.zip')
for i in range(2):
w.write(np.random.randint(0, 255, (300, 300, 3)))
w.release()
self.addFileToRemove('v1.zip')
w = ZipWriter('v2.zip')
for i in range(2):
w.write(np.random.randint(0, 255, (400, 400, 3)))
w.release()
self.addFileToRemove('v2.zip')
image_values = {
'a': (create_zero(300, 300), 'v1.zip'),
'b': (create_zero(400, 400), 'v2.zip')
}
def get_image(arg):
return image_values[arg]
tool = ZipZipLinkTool()
scModel = Mock()
scModel.gopLoader = Mock()
scModel.G.dir = '.'
scModel.gopLoader.getOperationWithGroups = Mock(
return_value=Operation(name='test', category='test'))
scModel.getImageAndName = get_image
mask, analysis, errors = tool.compareImages('a',
'b',
scModel,
'TransformResize',
arguments={},
analysis_params={})
self.assertEqual(0, len(errors))
self.assertEqual('(100, 100)', analysis['shape change'])
self.assertEqual(1, len(analysis['videomasks']))
self.assertEqual(2,
get_end_frame_from_segment(analysis['videomasks'][0]))
def warpMask(self,
video_masks,
source,
target,
expectedType='video',
inverse=False,
useFFMPEG=False):
"""
Tranform masks when the frame rate has changed.
:param video_masks: ithe set of video masks to walk through and transform
:param expectedType:
:param video_masks:
:return: new set of video masks
"""
edge = self.graph.get_edge(source, target)
meta_i, frames_i = self.getVideoMeta(source,
show_streams=True,
media_types=[expectedType])
meta_o, frames_o = self.getVideoMeta(target,
show_streams=True,
media_types=[expectedType])
indices_i = ffmpeg_api.get_stream_indices_of_type(meta_i, expectedType)
indices_o = ffmpeg_api.get_stream_indices_of_type(meta_o, expectedType)
if not indices_i or not indices_o:
return video_masks
index_i = indices_i[0]
index_o = indices_o[0]
isVFR = ffmpeg_api.is_vfr(meta_i[index_i]) or ffmpeg_api.is_vfr(
meta_o[index_o])
result = self.getChangeInFrames(edge,
meta_i[index_i],
meta_o[index_o],
source,
target,
expectedType=expectedType)
if result is None:
return video_masks
sourceFrames, sourceTime, targetFrames, targetTime, sourceRate, targetRate = result
if sourceFrames == targetFrames and int(sourceTime * 100) == int(
targetTime * 100):
return video_masks
dropRate = sourceFrames / float(
sourceFrames -
targetFrames) if sourceFrames != targetFrames else sourceFrames + 1
#if sourceFrames > targetFrames else targetFrames / float(sourceFrames - targetFrames)
def apply_change(existing_value,
orig_rate,
final_rate,
inverse=False,
round_value=True,
min_value=0,
upper_bound=False):
# if round_value, return a tuple of value plus rounding error
import math
multiplier = -1.0 if inverse else 1.0
adjustment = existing_value * math.pow(final_rate / orig_rate,
multiplier)
if round_value:
v = max(
min(round(adjustment), final_rate)
if upper_bound else round(adjustment), min_value)
e = abs(adjustment - v)
return int(v), e
return max(
min(adjustment, final_rate) if upper_bound else adjustment,
min_value)
def adjustPositionsFFMPEG(meta, video_frames, hits):
rate = ffmpeg_api.get_video_frame_rate_from_meta([meta],
[video_frames])
aptime = 0
lasttime = 0
hitspos = 0
start_mask = None
for pos in range(0, len(video_frames)):
aptime = get_frame_time(video_frames[pos], aptime, rate)
while hitspos < len(hits) and aptime > hits[hitspos][0]:
mask = hits[hitspos][2]
element = hits[hitspos][1]
error = abs(aptime - hits[hitspos][0])
if element == 'starttime':
update_segment(mask,
starttime=lasttime,
startframe=pos,
error=error +
get_error_from_segment(mask))
start_mask = mask
else:
# for error, only record the error if not recorded
update_segment(
mask,
endtime=lasttime,
endframe=pos,
error=(error if start_mask != mask else 0) +
get_error_from_segment(mask))
hitspos += 1
lasttime = aptime
return mask
def adjustPositions(video_file, hits):
# used if variable frame rate
frmcnt = 0
hitspos = 0
last = 0
cap = cv2api_delegate.videoCapture(video_file)
try:
while cap.grab() and hitspos < len(hits):
frmcnt += 1
aptime = cap.get(cv2api_delegate.prop_pos_msec)
while hitspos < len(hits) and aptime > hits[hitspos][0]:
mask = hits[hitspos][2]
element = hits[hitspos][1]
error = max(abs(last - hits[hitspos][0]),
abs(aptime - hits[hitspos][0]))
if element == 'starttime':
update_segment(mask,
starttime=last,
startframe=frmcnt,
error=error)
else:
update_segment(mask,
endtime=last,
endframe=frmcnt,
error=max(
error,
get_error_from_segment(mask)))
hitspos += 1
last = aptime
finally:
cap.release()
return mask
new_mask_set = []
hits = []
# First adjust all the frame and time references by the total change in the video.
# In most cases, the length of the video in time changes by a small amount which is distributed
# across all the masks
for mask_set in video_masks:
if 'type' in mask_set and mask_set['type'] != expectedType:
new_mask_set.append(mask_set)
continue
#these are initial estimates
startframe, error_start = apply_change(
get_start_frame_from_segment(mask_set),
float(sourceFrames),
float(targetFrames),
inverse=inverse,
round_value=True,
min_value=1)
endframe, error_end = apply_change(
get_end_frame_from_segment(mask_set),
float(sourceFrames),
float(targetFrames),
inverse=inverse,
min_value=1,
round_value=True,
upper_bound=True)
endtime = apply_change(get_end_time_from_segment(mask_set),
float(sourceTime),
targetTime,
inverse=inverse,
round_value=False)
starttime = apply_change(get_start_time_from_segment(mask_set),
sourceTime,
targetTime,
inverse=inverse,
round_value=False,
upper_bound=True)
try:
if endframe == int(getValue(meta_o[index_o], 'nb_frames', 0)) and \
float(getValue(meta_o[index_o], 'duration', 0)) > 0:
endtime = float(getValue(meta_o[index_o], 'duration',
0)) * 1000.0 - (1000.0 /
targetRate)
elif endtime > targetTime and endframe > targetFrames:
message = '{} exceeded target time of {} for {}'.format(
sourceTime, target, targetTime)
if (endtime - targetTime) > 300:
logging.getLogger('maskgen').error(message)
else:
logging.getLogger('maskgen').warn(message)
endtime = targetTime - (1000.0 / targetRate)
endframe = targetFrames
except:
pass
change = create_segment(
rate=sourceRate if inverse else targetRate,
type=get_type_of_segment(mask_set),
starttime=starttime,
startframe=startframe,
error=get_error_from_segment(mask_set) +
(max(error_start, error_end) / targetRate * 1000.0),
endtime=endtime,
endframe=endframe,
videosegment=get_file_from_segment(mask_set))
if not isVFR:
# in this case, we trust the time invariance, updating frames
recalculate_frames_for_segment(change)
# then we reupdate time to match the frames
recalculate_times_for_segment(change)
new_mask_set.append(change)
hits.append(
(get_start_time_from_segment(change), 'starttime', change))
hits.append((get_end_time_from_segment(change), 'endime', change))
# only required when one of the two videos is variable rate
hits = sorted(hits)
if isVFR:
if useFFMPEG:
meta_r, frames_r = self.getVideoMeta(
source if inverse else target,
show_streams=True,
with_frames=True,
media_types=[expectedType])
index_r = ffmpeg_api.get_stream_indices_of_type(
meta_o, expectedType)[0]
adjustPositionsFFMPEG(meta_r[index_r], frames_r[index_r], hits)
else:
adjustPositions(
self.getNodeFile(source)
if inverse else self.getNodeFile(target), hits)
transfer_masks(video_masks,
new_mask_set,
dropRate,
frame_time_function=lambda x, y: y +
(1000.0 / targetRate),
frame_count_function=lambda x, y: y + 1)
return new_mask_set
