def push_frames_for_copy_to_queue(self, source_video_parent_file_id,
destination_video_parent_file_id):
"""
Give the current data at self.input, get the video frame of the existing file
and push them to the ProcessMedia Queue.
:return:
"""
source_video_frames = WorkingDirFileLink.image_file_list_from_video(
session=self.session,
video_parent_file_id=source_video_parent_file_id,
order_by_frame=True)
frame_completion_controller = FrameCompletionControl()
for frame in source_video_frames:
frame_completion_controller.add_pending_frame(frame.frame_number)
for frame in source_video_frames:
### HOW TOD AVOID DETACHED SESSION
### Must only pass IDs and not pass any other objects
# Actually the add remove link thing could be different too...
# Careful the file id is the newly copied video
# The previous video id should come from the NEW file id not the previous one
frame_input = Input.new(
parent_input_id=self.input.id,
sequence_map=self.input.sequence_map,
file_id=frame.id, # existing
video_parent_length=len(source_video_frames),
directory_id=self.input.directory_id,
source_directory_id=self.input.source_directory_id,
remove_link=self.input.remove_link,
add_link=self.input.add_link,
copy_instance_list=self.input.copy_instance_list,
parent_file_id=destination_video_parent_file_id,
# This is the parent video file where all data is going to be copied.
project_id=self.input.project_id,
mode='copy_file',
type=None,
media_type='frame',
)
item = process_media.PrioritizedItem(
input=frame_input,
frame_completion_controller=frame_completion_controller,
total_frames=source_video_frames[len(source_video_frames) -
1].frame_number,
num_frames_to_update=len(source_video_frames),
media_type=frame_input.
media_type, # declaring here helps with routing
priority=100 + frame.frame_number, # Process in frame priority
frame_number=frame.
frame_number # Careful, downstream process currently expects it
)
process_media.add_item_to_queue(item)
return source_video_frames
def __push_formatted_frame_to_queue(self, input: Input):
item = process_media.PrioritizedItem(
input=input,
media_type=input.media_type, # declaring here helps with routing
priority=100 + input.frame_number, # Process in frame priority
frame_number=input.
frame_number # Careful, downstream process currently expects it
)
process_media.add_item_to_queue(item)
def add_frame_to_queue(self,
frame,
index: int,
original_filename: str,
project: Project,
directory_id,
video,
length,
video_parent_file: File,
global_frame_number=None,
initial_global_frame=None):
"""
Where frame is:
a HxWxN np.array, where N=1 for mask clips and N=3 for RGB clips.
https://zulko.github.io/moviepy/ref/VideoClip/VideoClip.html
Careful we don't have self. context here
Cautions
* We purposely do not not pass the job id, since we only want to original
video to be added to the job
Question,
is it correct we create input class in part to maintain
same concepts / format even for video frames?
Answer: For example see frame_end_number is used to pass information
Makes more sense to have it all in there then the PrioritizedItem() thing
long term
Also thinking in terms of logging
And yes of course, then it's complete reuse of the component
Jan 20, 2020
Note we purposely do NOT commit this as it creates unneeded
db overhead, so instead we only use it as a local object
to maintain consistency of design
which means we do NOT want to add to add it a sesion
ie self.session.add(input)
"""
input = Input()
# Use input for class attributes,
# but don't add it to the session for video?
# TODO use File.new() for consistency here (ie as we add new things)
# Single frame naming
input.original_filename = original_filename + "_" + str(index)
input.extension = ".jpg"
input.media_type = "frame"
input.temp_dir = tempfile.mkdtemp()
input.project = project
input.directory_id = directory_id
input.parent_file_id = video_parent_file.id
input.frame_packet_map = self.input.frame_packet_map
# caution length is estimated. frame_count
# is calculated as we roll through this so can't use it yet
# Question: clarity on difference between numbers.
# (I know estimate but still.)
input.video_parent_length = length
input.parent_input_id = self.input.id
input.project_id = self.project.id
# This is a temporary usage thing only
# Note database persisted
# Context of needing it to be defined so existing instances
# Can use it (vs having to get video from db each time,
# prior we defined this on first frame.
input.root_blob_path_to_frames = video.root_blob_path_to_frames
input = self.get_instance_list_from_packet_map(
input=input,
frame_number=index,
global_frame_number=global_frame_number,
initial_global_frame=initial_global_frame,
from_video_split=self.input.type == 'from_video_split')
"""
For frame priority, the original genesis was doing the last frame last
but, I think it also makese sense to process in order in general.
An alternative would be to say put a flag on the last frame
but using order feels like a more general solution, assuming no suprises
or extra overhead.
Storing frames
Maybe don't attach video_parent_file
because it leads to not bound errors in ORM fairly easily.
"""
# TODO, consider sending data as a "raw" blob
# to cloud storage, then setting "processing deferred" to True here.
# Process frames of videos started before new videos
item = process_media.PrioritizedItem(
priority=100 + index, # Process in frame priority
input=input,
raw_numpy_image=frame,
file_is_numpy_array=True,
video_id=video.id,
frame_number=index,
global_frame_number=global_frame_number,
media_type=input.media_type)
process_media.add_item_to_queue(item)