def create_post_media_video(cls, file, post_id, order):
hash = sha256sum(file=file.file)
video_backend = get_backend()
if isinstance(file, InMemoryUploadedFile):
# If its in memory, doing read shouldn't be an issue as the file should be small.
in_disk_file = write_in_memory_file_to_disk(file)
thumbnail_path = video_backend.get_thumbnail(
video_path=in_disk_file.name, at_time=0.0)
else:
thumbnail_path = video_backend.get_thumbnail(
video_path=file.file.name, at_time=0.0)
with open(thumbnail_path, 'rb+') as thumbnail_file:
post_video = cls.objects.create(
file=file,
post_id=post_id,
hash=hash,
thumbnail=File(thumbnail_file),
)
PostMedia.create_post_media(type=PostMedia.MEDIA_TYPE_VIDEO,
content_object=post_video,
post_id=post_id,
order=order)
return post_video
def create_thumbnail(self):
if not self.videoFile:
# no video file attached
return
new_video = self.videoFile
encoding_backend = get_backend()
at_time = new_video.duration / 2
thumbnail_path = encoding_backend.get_thumbnail(new_video.path,
at_time=at_time)
filename = Path(new_video.name).stem
try:
with open(thumbnail_path, 'rb') as file_handler:
thumbnail_name = self.thumbnail.storage.get_alternative_name(
filename, '.jpg')
self.thumbnail.save(thumbnail_name, File(file_handler))
finally:
os.unlink(thumbnail_path)
def create_thumbnail(self):
if not self.videoFile:
# no video file attached
return
new_video = self.videoFile
encoding_backend = get_backend()
duration = new_video.duration
if duration < 1:
at_time = duration / 2
elif duration < 5:
at_time = 2.5
elif duration < 10:
at_time = 5
elif duration < 30:
at_time = 15
else:
at_time = 30
thumbnail_path = encoding_backend.get_thumbnail(new_video.path,
at_time=at_time)
filename = Path(new_video.name).stem
# + '.jpg'
old_path = self.thumbnail.path
base_url = settings.MEDIA_ROOT + '/images/default-thumbnail.jpg'
try:
if old_path != base_url:
os.unlink(old_path)
except FileNotFoundError:
pass
try:
with open(thumbnail_path, 'rb') as file_handler:
thumbnail_name = self.thumbnail.storage.get_alternative_name(
filename, '.jpg')
self.thumbnail.save(thumbnail_name, File(file_handler))
finally:
os.unlink(thumbnail_path)
def create_thumbnail(video_pk):
video = Video.objects.get(pk=video_pk)
if not video.file:
# no video file attached
return
if video.thumbnail:
# thumbnail has already been generated
return
encoding_backend = get_backend()
thumbnail_path = encoding_backend.get_thumbnail(video.file.path)
filename = os.path.basename(self.url),
try:
with open(thumbnail_path, 'rb') as file_handler:
django_file = File(file_handler)
video.thumbnail.save(filename, django_file)
video.save()
finally:
os.unlink(thumbnail_path)
def create_preview(video_pk: int) -> None:
"""
Create preview image for the given video.
:param video_pk: video primary key
:return: None
"""
from project.apps.video_archive.models import Video
video = Video.objects.get(pk=video_pk)
if not video.file:
# no video file attached
return
if video.preview:
# preview has already been generated
return
preview_path = get_backend().get_thumbnail(video.file.path)
filename = os.path.basename(preview_path)
with open(preview_path, 'rb') as file_handler:
django_file = File(file_handler)
video.preview.save(filename, django_file)
video.save()