def edit(request, video_id):
Video = get_video_model()
VideoForm = get_video_form(Video)
video = get_object_or_404(Video, id=video_id)
if request.POST:
original_file = video.file
form = VideoForm(request.POST, request.FILES, instance=video)
if form.is_valid():
if 'file' in form.changed_data:
# if providing a new video file, delete the old one and all renditions.
# NB Doing this via original_file.delete() clears the file field,
# which definitely isn't what we want...
original_file.storage.delete(original_file.name)
# Set new video file size
video.file_size = video.file.size
video = form.save()
video.save()
# Reindex the video to make sure all tags are indexed
for backend in get_search_backends():
backend.add(video)
messages.success(request, _("Video '{0}' updated.").format(video.title))
else:
messages.error(request, _("The video could not be saved due to errors."))
else:
form = VideoForm(instance=video)
if not video._meta.get_field('file').storage.exists(video.file.name):
# Give error if video file doesn't exist
messages.error(request, _(
"The source video file could not be found. Please change the source or delete the video."
).format(video.title), buttons=[
messages.button(reverse('wagtailvideos:delete', args=(video.id,)), _('Delete'))
])
if is_modeladmin_installed():
url_helper = AdminURLHelper(Video.get_track_listing_model())
if hasattr(video, 'track_listing'):
action_url = url_helper.get_action_url('edit', instance_pk=video.track_listing.pk)
else:
action_url = url_helper.create_url
else:
action_url = ''
return render(request, "wagtailvideos/videos/edit.html", {
'video': video,
'form': form,
'filesize': video.get_file_size(),
'can_transcode': ffmpeg.installed(),
'transcodes': video.transcodes.all(),
'transcode_form': VideoTranscodeAdminForm(video=video),
'tracks_action_url': action_url,
'user_can_delete': permission_policy.user_has_permission_for_instance(request.user, 'delete', video)
})
def ffmpeg_check(app_configs, **kwargs):
messages = []
if not ffmpeg.installed():
messages.append(
Warning(
'ffmpeg could not be found on your system. Transcoding will be disabled',
hint=None,
id='wagtailvideos.W001',
))
return messages
def schedule_default_transcode(object_pk, *args):
Video = apps.get_model(app_label="wagtailvideos", model_name="Video")
instance = Video.objects.get(pk=object_pk)
log.debug('transcoding video for %s', instance)
if not ffmpeg.installed():
raise ImproperlyConfigured(
"ffmpeg could not be found on your system. Transcoding will be disabled"
)
transcode, created = instance.transcodes.get_or_create()
if transcode.processing is False:
transcode.processing = True
transcode.error_message = ''
# Lock the transcode model
transcode.save(update_fields=['processing', 'error_message'])
transcode.run_transcoding()
def get_video_metadata(object_pk, *args):
Video = apps.get_model(app_label="wagtailvideos", model_name="Video")
instance = Video.objects.get(pk=object_pk)
log.debug('getting video metadata for %s', instance)
if not ffmpeg.installed():
raise ImproperlyConfigured(
"ffmpeg could not be found on your system. Transcoding will be disabled"
)
with get_local_file(instance.file) as file_path:
instance.thumbnail = ffmpeg.get_thumbnail(file_path)
instance.duration = ffmpeg.get_duration(file_path)
instance.file_size = instance.file.size
instance.save()
def video_saved(sender, instance, **kwargs):
if not ffmpeg.installed():
return
if hasattr(instance, '_from_signal'):
return
has_changed = instance._initial_file is not instance.file
filled_out = instance.thumbnail is not None and instance.duration is not None
if has_changed or not filled_out:
with get_local_file(instance.file) as file_path:
if has_changed or instance.thumbnail is None:
instance.thumbnail = ffmpeg.get_thumbnail(file_path)
if has_changed or instance.duration is None:
instance.duration = ffmpeg.get_duration(file_path)
instance.file_size = instance.file.size
instance._from_signal = True
instance.save()
del instance._from_signal
def video_saved(sender, instance, **kwargs):
if not ffmpeg.installed():
return
if hasattr(instance, '_from_signal'):
return
has_changed = instance._initial_file is not instance.file
filled_out = instance.thumbnail is not None and instance.duration is not None
if has_changed or not filled_out:
with get_local_file(instance.file) as file_path:
if has_changed or instance.thumbnail is None:
instance.thumbnail = ffmpeg.get_thumbnail(file_path)
if has_changed or instance.duration is None:
instance.duration = ffmpeg.get_duration(file_path)
instance.file_size = instance.file.size
instance._from_signal = True
instance.save()
del instance._from_signal
