def receive_data_chunk(self, raw_data, start):
'''
Receives a "chunk" of data from the file upload.
``raw_data is`` a byte string containing the uploaded data.
``start`` is the position in the file where this raw_data chunk begins.
The data you return will get fed into the subsequent upload handlers'
receive_data_chunk methods. In this way, one handler can be a "filter"
for other handlers.
Return None from receive_data_chunk to sort-circuit remaining upload
handlers from getting this chunk.. This is useful if you're storing
the uploaded data yourself and don't want future handlers to store
a copy of the data.
If you raise a StopUpload or a SkipFile exception, the upload will
abort or the file will be completely skipped.
'''
self.progress += self.chunk_size
if self.cach_key:
try:
percent = min(100, int(100 * self.progress / self.length))
cache.incr(self.cach_key, percent)
if settings.DEBUG:
logging.debug('uploaded proceeded for %s and filename %s @ %s'
% (self.cach_key, self.name, ctime.ctime()))
except ValueError, e:
logging.error('Tried to increment a non-existing cache-key;\
%s %s' % (self.cach_key, e))
def _ffmpeg(self, in_file, out_file):
'''**ffmpeg one-pass CRF**:
.. code-block:: bash
$ ffmpeg -i input.mov -acodec libfaac -ab 128k -ac 2 -vcodec libx264 \
-vpre slow -crf 22 -threads 0 output.mp4
**ffmpeg two-pass fast**:
.. code-block:: bash
ffmpeg -i input.avi -pass 1 -vcodec libx264 -vpre fast_firstpass \
-b 512k -bt 512k -threads 0 -f rawvideo -an -y /dev/null
ffmpeg -i input.avi -pass 2 -acodec libfaac -ab 128k -ac 2 \
-vcodec libx264 -vpre fast -b 512k -bt 512k -threads 0 output.mp4
'''
ffmpeg = ['ffmpeg',
'-i', in_file,
'-acodec', 'libfaac',
'-ab', '128k',
'-ac', '2',
'-vcodec', 'libx264',
'-vpre', 'slow',
'-crf', '22',
'-threads', '0',
out_file]
ret = subprocess.call(ffmpeg)
if ret != 0 or not os.path.exists(out_file):
logging.error('Conversion error, ffmpeg returned %s' % ret)
raise OSError()
return out_file
def outdate_ranking(sender, **kwargs):
try:
server = Server.objects.get()
except MultipleObjectsReturned:
if logging:
logging.error("Multiple servers found")
except ObjectDoesNotExist:
if logging:
logging.error("No configured server")
else:
server.ranking_outdated = True
server.save()
def jsonify(*arg, **kw):
status = 200
try:
res = fn(*arg, **kw)
if res is None:
res = {}
except Exception, e:
status = 500
traceback.print_exc()
res = {'error': {'type': sys.modules[type(e).__module__].__name__ + "." + type(e).__name__,
'description': str(e),
'traceback': traceback.format_exc()}}
logging.error("%s: %s" % (str(e), res['error']['type']))
