def test_invalid_request(app):
"""Test exceptions for invalid requests."""
invalid_preset_quality = '522p'
invalid_aspect_ratio = '15:3'
with pytest.raises(InvalidAspectRatioError) as exc:
start_encoding('input', '', '480p', invalid_aspect_ratio)
assert invalid_aspect_ratio in str(exc)
with pytest.raises(InvalidResolutionError) as exc:
start_encoding('input', '', invalid_preset_quality, '16:9')
assert '16:9' in str(exc)
assert invalid_preset_quality in str(exc)
def test_invalid_request(app):
"""Test exceptions for invalid requests."""
invalid_preset_quality = '522p'
invalid_aspect_ratio = '15:3'
with pytest.raises(InvalidAspectRatioError) as exc:
start_encoding('input', '', '480p', invalid_aspect_ratio)
assert invalid_aspect_ratio in str(exc)
with pytest.raises(InvalidResolutionError) as exc:
start_encoding('input', '', invalid_preset_quality, '16:9')
assert '16:9' in str(exc)
assert invalid_preset_quality in str(exc)
def test_start_encoding(requests_post_mock, app, start_response):
"""Test if starting encoding works."""
filename = 'file://cernbox-smb.cern.ch/eoscds/test/sorenson_input/' \
'1111-dddd-3333-aaaa/data.mp4'
# Random preset from config
aspect_ratio, quality = '16:9', '360p'
# Mock sorenson response
sorenson_response = MagicMock()
sorenson_response.text = start_response
sorenson_response.status_code = 200
requests_post_mock.return_value = sorenson_response
job_id = start_encoding(filename, '', quality, aspect_ratio)
assert job_id == "1234-2345-abcd"
with pytest.raises(TooHighResolutionError):
start_encoding(filename, '', quality, aspect_ratio, max_height=240)
def test_start_encoding(requests_post_mock, app, start_response):
"""Test if starting encoding works."""
filename = 'file://cernbox-smb.cern.ch/eoscds/test/sorenson_input/' \
'1111-dddd-3333-aaaa/data.mp4'
# Random preset from config
aspect_ratio, quality = '16:9', '360p'
# Mock sorenson response
sorenson_response = MagicMock()
sorenson_response.text = start_response
sorenson_response.status_code = 200
requests_post_mock.return_value = sorenson_response
job_id = start_encoding(filename, '', quality, aspect_ratio)
assert job_id == "1234-2345-abcd"
def run(self, preset_quality, sleep_time=5, *args, **kwargs):
"""Launch video transcoding.
For each of the presets generate a new ``ObjectVersion`` tagged as
slave with the preset name as key and a link to the master version.
:param self: reference to instance of task base class
:param preset_quality: preset quality to use for transcoding.
:param sleep_time: time interval between requests for the Sorenson
status.
"""
self._base_payload.update(preset_quality=preset_quality)
# Get master file's bucket_id
bucket_id = self.object.bucket_id
bucket_location = self.object.bucket.location.uri
# Get master file's key
master_key = self.object.key
tags = self.object.get_tags()
# Get master file's aspect ratio
aspect_ratio = tags['display_aspect_ratio']
# Get master file's width x height
width = int(tags['width']) if 'width' in tags else None
height = int(tags['height']) if 'height' in tags else None
with db.session.begin_nested():
# Create FileInstance
file_instance = FileInstance.create()
# Create ObjectVersion
obj_key = self._build_slave_key(preset_quality=preset_quality,
master_key=master_key)
obj = ObjectVersion.create(bucket=bucket_id, key=obj_key)
# Extract new location
storage = file_instance.storage(default_location=bucket_location)
directory, filename = storage._get_fs()
input_file = self.object.file.uri
output_file = os.path.join(directory.root_path, filename)
try:
# Start Sorenson
job_id = start_encoding(input_file,
output_file,
preset_quality,
aspect_ratio,
max_height=height,
max_width=width)
except (InvalidResolutionError, TooHighResolutionError) as e:
exception = self._meta_exception_envelope(exc=e)
self.update_state(state=REVOKED, meta=exception)
raise Ignore()
# Set revoke handler, in case of an abrupt execution halt.
self.set_revoke_handler(partial(stop_encoding, job_id))
# Create ObjectVersionTags
ObjectVersionTag.create(obj, 'master', self.obj_id)
ObjectVersionTag.create(obj, '_sorenson_job_id', job_id)
ObjectVersionTag.create(obj, 'preset_quality', preset_quality)
ObjectVersionTag.create(obj, 'media_type', 'video')
ObjectVersionTag.create(obj, 'context_type', 'subformat')
preset_info = get_preset_info(aspect_ratio, preset_quality)
for key, value in preset_info.items():
ObjectVersionTag.create(obj, key, value)
# Information necessary for monitoring
job_info = dict(
preset_quality=preset_quality,
job_id=job_id,
file_instance=str(file_instance.id),
uri=output_file,
version_id=str(obj.version_id),
key=obj_key,
tags=obj.get_tags(),
percentage=0,
)
db.session.commit()
self.update_state(state=STARTED,
meta=dict(payload=dict(**job_info),
message='Started transcoding.'))
status = ''
# Monitor job and report accordingly
while status != 'Finished':
# Get job status
status, percentage = get_encoding_status(job_id)
if status == 'Error':
raise RuntimeError('Error transcoding')
job_info['percentage'] = percentage
# Update task's state for this preset
self.update_state(
state=STARTED,
meta=dict(payload=dict(**job_info),
message='Transcoding {0}'.format(percentage)))
time.sleep(sleep_time)
# Set file's location, if job has completed
self._clean_file_name(output_file)
with db.session.begin_nested():
uri = output_file
with open(uri, 'rb') as transcoded_file:
digest = hashlib.md5(transcoded_file.read()).hexdigest()
size = os.path.getsize(uri)
checksum = '{0}:{1}'.format('md5', digest)
file_instance.set_uri(uri, size, checksum)
as_object_version(job_info['version_id']).set_file(file_instance)
db.session.commit()
def video_transcode(self,
object_version,
video_presets=None,
sleep_time=5,
**kwargs):
"""Launch video transcoding.
For each of the presets generate a new ``ObjectVersion`` tagged as slave
with the preset name as key and a link to the master version.
:param object_version: Master video.
:param video_presets: List of presets to use for transcoding. If ``None``
it will use the default values set in ``VIDEO_DEFAULT_PRESETS``.
:param sleep_time: the time interval between requests for Sorenson status
"""
object_version = as_object_version(object_version)
self._base_payload = dict(
object_version=str(object_version.version_id),
video_presets=video_presets,
tags=object_version.get_tags(),
deposit_id=kwargs.get('deposit_id', None),
event_id=kwargs.get('event_id', None),
)
job_ids = deque()
# Set handler for canceling all jobs
def handler(signum, frame):
# TODO handle better file deleting and ObjectVersion cleaning
map(lambda _info: stop_encoding(info['job_id']), job_ids)
signal.signal(signal.SIGTERM, handler)
# Get master file's bucket_id
bucket_id = object_version.bucket_id
bucket_location = object_version.bucket.location.uri
preset_config = current_app.config['CDS_SORENSON_PRESETS']
for preset in video_presets or preset_config.keys():
with db.session.begin_nested():
# Create FileInstance and get generated UUID
file_instance = FileInstance.create()
# Create ObjectVersion
base_name = object_version.key.rsplit('.', 1)[0]
new_extension = preset_config[preset][1]
obj = ObjectVersion.create(
bucket=bucket_id,
key='{0}-{1}{2}'.format(base_name, preset, new_extension)
)
obj.set_file(file_instance)
ObjectVersionTag.create(
obj, 'master', str(object_version.version_id))
ObjectVersionTag.create(obj, 'preset', preset)
# Extract new location
storage = file_instance.storage(default_location=bucket_location)
directory, filename = storage._get_fs()
# Start Sorenson
input_file = object_version.file.uri
output_file = os.path.join(directory.root_path, filename)
job_id = start_encoding(input_file, preset, output_file)
ObjectVersionTag.create(obj, '_sorenson_job_id', job_id)
job_info = dict(
preset=preset,
job_id=job_id,
file_instance=str(file_instance.id),
uri=output_file,
object_version=str(obj.version_id),
key=obj.key,
tags=obj.get_tags(),
)
db.session.commit()
self.update_state(
state=STARTED,
meta=dict(
payload=dict(job_info=job_info),
message='Started transcoding.'
)
)
job_ids.append(job_info)
# Monitor jobs and report accordingly
while job_ids:
info = job_ids.popleft()
# Get job status
status = get_encoding_status(info['job_id'])['Status']
percentage = 100 if status['TimeFinished'] else status['Progress']
info['percentage'] = percentage
# Update task's state for each individual preset
self.update_state(
state=STARTED,
meta=dict(
payload=dict(job_info=job_info),
message='Transcoding {0}'.format(percentage),
)
)
# Set file's location for completed jobs
if percentage == 100:
with db.session.begin_nested():
uri = info['uri']
with open(uri, 'rb') as transcoded_file:
digest = hashlib.md5(transcoded_file.read()).hexdigest()
size = os.path.getsize(uri)
checksum = '{0}:{1}'.format('md5', digest)
FileInstance.get(
info['file_instance']).set_uri(uri, size, checksum)
db.session.commit()
else:
job_ids.append(info)
time.sleep(sleep_time)
