def _get_missing_subformats(subformats, ar, w, h):
"""Return missing and transcodable subformats."""
dones = [
subformat['tags']['preset_quality'] for subformat in subformats
]
missing = set(get_all_distinct_qualities()) - set(dones)
transcodables = list(
filter(lambda q: can_be_transcoded(q, ar, w, h), missing))
return transcodables
def test_can_be_transcoded(app):
"""Test `test_can_be_transcoded` function."""
# standard case
result = can_be_transcoded('360p', '16:9')
assert result['quality'] == '360p'
assert result['aspect_ratio'] == '16:9'
assert result['width'] == 640
assert result['height'] == 360
# aspect ratio fallback
result = can_be_transcoded('720p', '5:4', 1024, 768)
assert result['quality'] == '720p'
assert result['aspect_ratio'] == '4:3'
assert result['width'] == 960
assert result['height'] == 720
# no transcoding
assert not can_be_transcoded('720p', '5:4')
assert not can_be_transcoded('720p', '5:4', 480, 360)
def create_subformat(id_type, id_value, quality):
"""Recreate a given subformat."""
_validate(id_type=id_type, quality=quality)
video_deposit, dep_uuid = _resolve_deposit(id_type, id_value)
master, ar, w, h = _get_master_video(video_deposit)
subformat = can_be_transcoded(quality, ar, w, h)
if subformat:
MaintenanceTranscodeVideoTask().s(version_id=master['version_id'],
preset_quality=subformat['quality'],
deposit_id=dep_uuid).apply_async()
return subformat
def create_all_subformats(id_type, id_value):
"""Recreate all subformats."""
_validate(id_type=id_type)
video_deposit, dep_uuid = _resolve_deposit(id_type, id_value)
master, ar, w, h = _get_master_video(video_deposit)
transcodables = list(
filter(lambda q: can_be_transcoded(q, ar, w, h),
get_all_distinct_qualities()))
# sequential (and immutable) transcoding to avoid MergeConflicts on bucket
if transcodables:
chain([
MaintenanceTranscodeVideoTask().si(version_id=master['version_id'],
preset_quality=quality,
deposit_id=dep_uuid)
for quality in transcodables
]).apply_async()
return transcodables
def create_all_missing_subformats(id_type, id_value):
"""Create all missing subformats."""
_validate(id_type=id_type)
video_deposit, dep_uuid = _resolve_deposit(id_type, id_value)
master, ar, w, h = _get_master_video(video_deposit)
subformats = CDSVideosFilesIterator.get_video_subformats(master)
dones = [subformat['tags']['preset_quality'] for subformat in subformats]
missing = set(get_all_distinct_qualities()) - set(dones)
transcodables = list(
filter(lambda q: can_be_transcoded(q, ar, w, h), missing))
# sequential (and immutable) transcoding to avoid MergeConflicts on bucket
if transcodables:
chain([
MaintenanceTranscodeVideoTask().si(version_id=master['version_id'],
preset_quality=quality,
deposit_id=dep_uuid)
for quality in transcodables
]).apply_async()
return transcodables