def detection_video(file_name, file_id):
"""
:param file_name: string
:param file_id: string
:return: dict
"""
with graph.as_default():
path_new_video = f'media/new-files/{file_name}'
detected_video_name = str(math.ceil(time.time()))
path_detected_video_avi = f'media/video-object-detection/{detected_video_name}'
video_path = detector.detectObjectsFromVideo(input_file_path=os.path.join(execution_path, path_new_video),
output_file_path=os.path.join(execution_path,
path_detected_video_avi),
frames_per_second=20, log_progress=True)
stream = ffmpeg.input(video_path).video.hflip()
stream = ffmpeg.output(stream, os.path.join(execution_path,
f'media/video-object-detection/{detected_video_name}.mp4'))
ffmpeg.run(stream)
new_stream = ffmpeg.input(os.path.join(execution_path,
f'media/video-object-detection/{detected_video_name}.mp4'))
new_stream = ffmpeg.hflip(new_stream)
new_stream = ffmpeg.output(new_stream, os.path.join(execution_path,
f'media/video-object-detection/flip-{detected_video_name}.mp4'))
ffmpeg.run(new_stream)
os.remove(video_path)
print('end recognition')
socketio.emit('video-object-detection-end',
{'link': f'http://localhost:5000/media/video-object-detection/flip-{detected_video_name}.mp4',
'id': file_id})
def flip_video(file, orientation): stream = ffmpeg.input(file) if (orientation == "horizontal): stream = ffmpeg.hflip(stream) else: stream = ffmpeg.vflip(stream) stream = ffmpeg.output(stream, file)
def mirror(path):
video = [f for f in os.listdir(path) if ".mp4" in f]
for v in video:
name = v.split('.')[0]
savepath = os.path.join(path, name + "_mirrored.mp4")
stream = ffmpeg.input(os.path.join(path, v))
stream = ffmpeg.hflip(stream)
stream = ffmpeg.output(stream, savepath)
ffmpeg.run(stream)
def record(self):
Recorder.isRecording = True
print("Recording started")
camera = Camera()
fourcc = cv2.VideoWriter_fourcc(*'XVID')
timestamp = time.strftime("%d\%m\%Y_%H:%M:%S")
directory = 'static/recordings/'
frames = []
start = time.time()
while int(time.time() - start) < Recorder.record_length:
frames.append(camera.get_frame())
time.sleep(0.03)
fps = len(frames) / Recorder.record_length
out = cv2.VideoWriter(directory + timestamp + '.avi', fourcc, fps,
(640, 480))
for frame in frames:
out.write(frame)
out.release()
stream = ffmpeg.input(directory + timestamp + '.avi')
stream = ffmpeg.hflip(stream)
stream = ffmpeg.output(stream, directory + timestamp + '.mp4')
ffmpeg.run(stream)
Recorder.isRecording = False
import ffmpeg import sys stream = ffmpeg.input(sys.argv[1]) stream = ffmpeg.hflip(stream) stream = ffmpeg.output(stream, 'output.mp4') ffmpeg.run(stream)
if __name__ == '__main__':
# Parse arguments
args = docopt(__doc__)
videos_path_in = join(os.getcwd(), args['--path_in'])
videos_path_out = join(
os.getcwd(),
args['--path_out']) if args.get('--path_out') else videos_path_in
# Training script expects videos in MP4 format
VIDEO_EXT = '.mp4'
# Create directory to save flipped videos
os.makedirs(videos_path_out, exist_ok=True)
for video in os.listdir(videos_path_in):
print(f'Processing video: {video}')
flipped_video_name = video.split('.')[0] + '_flipped' + VIDEO_EXT
# Original video as input
original_video = ffmpeg.input(join(videos_path_in, video))
# Do horizontal flip
flipped_video = ffmpeg.hflip(original_video)
# Get flipped video output
flipped_video_output = ffmpeg.output(flipped_video,
filename=join(
videos_path_out,
flipped_video_name))
# Run to render and save video
ffmpeg.run(flipped_video_output)
print("Processing complete!")
def __init__(self):
stream = ffmpeg.input(WEBCAM_WEBM_FILE_NAME)
stream = ffmpeg.hflip(stream)
stream = ffmpeg.output(stream, WEBCAM_WEBM_FILE_NAME.replace('.webm', '.mp4'))
ffmpeg.run(stream)
os.remove(WEBCAM_WEBM_FILE_NAME)
def read_clips_from_video(dirname, model_settings):
print('Dirname: ', dirname)
# Input size for the network
frames_per_batch = model_settings['frames_per_batch']
video_fps = model_settings['video_fps']
crop_size = model_settings['crop_size']
np_mean = model_settings['np_mean']
trans_max = model_settings['trans_max']
# Data augmentation randoms
horizontal_flip = random.random()
trans_factor = random.randint(-trans_max, trans_max)
# Video information
probe = ffmpeg.probe(dirname)
for video_info in probe['streams']:
if 'width' in video_info:
break
video_width = video_info["width"]
video_height = video_info["height"]
video_duration = float(video_info["duration"])
num_frame = int(video_info["nb_frames"])
# Select which portion of the video will be input
rand_max = int(num_frame - ((num_frame / video_duration) *
(frames_per_batch / video_fps)))
start_frame = random.randint(0, max(rand_max - 1, 0))
# end_frame = ceil(start_frame + (num_frame / video_duration) * frames_per_batch / video_fps + 1)
video_start = (video_duration / num_frame) * start_frame
video_end = min(video_duration,
video_start + ((frames_per_batch + 1) / video_fps))
# Cropping factor
x_pos = max(video_width - video_height + 2 * trans_factor, 0) // 2
y_pos = max(video_height - video_width + 2 * trans_factor, 0) // 2
crop_size1 = min(video_height, video_width)
# Read specified times of the video
ff = ffmpeg.input(dirname, ss=video_start, t=video_end - video_start)
# Trim video -> did not work :(
# ff = ff.trim(end_frame='50')
# Divide into frames
ff = ffmpeg.filter(ff, 'fps', video_fps)
# Crop
ff = ffmpeg.crop(ff, x_pos, y_pos, crop_size1, crop_size1)
# Subsample
ff = ffmpeg.filter(ff, 'scale', crop_size, crop_size)
# Horizontal flip with some probability
if horizontal_flip > 0.5:
ff = ffmpeg.hflip(ff)
# Output the video
ff = ffmpeg.output(ff, 'pipe:', format='rawvideo', pix_fmt='rgb24')
# Run Process in quiet mode
out, _ = ffmpeg.run(ff, capture_stdout=True, quiet=True)
# Extract to numpy array
video = np.frombuffer(out, np.uint8). \
reshape([-1, crop_size, crop_size, 3])
# Copies last frame if # of frames < 16
# Subtracts the mean and converts type to float32
num_frames = video.shape[0]
if num_frames < frames_per_batch:
last_frame = video[-1]
num_frame_repeat = frames_per_batch - num_frames
# print('Frames repeated: ', num_frame_repeat)
last_repeat = np.repeat(last_frame[np.newaxis],
num_frame_repeat,
axis=0)
video = np.concatenate((video, last_repeat), axis=0) - np_mean
else:
video = video[:frames_per_batch] - np_mean
return video
def flip_videos():
"""
Flip the videos horizontally for given class and
copy tags of selected original videos for flipped version of it.
"""
data = request.json
project = data['projectName']
path = project_utils.lookup_project_path(project)
config = project_utils.load_project_config(path)
counterpart_class_name = str(data['counterpartClassName'])
original_class_name = str(data['originalClassName'])
copy_video_tags = data['videosToCopyTags']
if counterpart_class_name not in config['classes']:
config['classes'][counterpart_class_name] = config['classes'][original_class_name] \
if copy_video_tags['train'] or copy_video_tags['valid'] else []
project_utils.write_project_config(path, config)
for split in SPLITS:
videos_path_in = os.path.join(path, f'videos_{split}', original_class_name)
videos_path_out = os.path.join(path, f'videos_{split}', counterpart_class_name)
original_tags_path = os.path.join(path, f'tags_{split}', original_class_name)
counterpart_tags_path = os.path.join(path, f'tags_{split}', counterpart_class_name)
# Create directory to save flipped videos
os.makedirs(videos_path_out, exist_ok=True)
os.makedirs(counterpart_tags_path, exist_ok=True)
video_list = [video for video in os.listdir(videos_path_in) if video.endswith(VIDEO_EXT)]
for video in video_list:
output_video_list = [op_video for op_video in os.listdir(videos_path_out) if op_video.endswith(VIDEO_EXT)]
print(f'Processing video: {video}')
if '_flipped' in video:
flipped_video_name = ''.join(video.split('_flipped'))
else:
flipped_video_name = video.split('.')[0] + '_flipped' + VIDEO_EXT
if flipped_video_name not in output_video_list:
# Original video as input
original_video = ffmpeg.input(os.path.join(videos_path_in, video))
# Do horizontal flip
flipped_video = ffmpeg.hflip(original_video)
# Get flipped video output
flipped_video_output = ffmpeg.output(flipped_video,
filename=os.path.join(videos_path_out, flipped_video_name))
# Run to render and save video
ffmpeg.run(flipped_video_output)
# Copy tags of original video to flipped video (in train/valid set)
if video in copy_video_tags[split]:
original_tags_file = os.path.join(original_tags_path, video.replace(VIDEO_EXT, '.json'))
flipped_tags_file = os.path.join(counterpart_tags_path,
flipped_video_name.replace(VIDEO_EXT, '.json'))
if os.path.exists(original_tags_file):
with open(original_tags_file) as f:
original_video_tags = json.load(f)
original_video_tags['file'] = flipped_video_name
with open(flipped_tags_file, 'w') as f:
f.write(json.dumps(original_video_tags, indent=2))
print("Processing complete!")
return jsonify(status=True, url=url_for("project_details", project=project))
