No JSON object could be decoded

[BoogalooXiang]

I followed readme file and ran trans.py, main.py , process-vmaf.py one by one. I used vmaf-1.3.9 but the error come out: No JSON object could be decoded. And my json file is empty. Has anyone met with this problem? Can anybody tell me how to solve that? thx :D

[kasimte]

I think I've seen this. Can you post a log?

[BoogalooXiang]

Traceback (most recent call last):

File "../ffmpeg2vmaf", line 8, in
from vmaf.config import VmafConfig, DisplayConfig
ImportError: No module named vmaf.config

Traceback (most recent call last):

File "generate.py", line 62, in
eventloop(_file)
File "generate.py", line 44, in eventloop
data = json.load(json_file)
File "/usr/lib/python2.7/json/init.py", line 291, in load
**kw)
File "/usr/lib/python2.7/json/init.py", line 339, in loads
return _default_decoder.decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 364, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 382, in raw_decode
raise ValueError("No JSON object could be decoded")
ValueError: No JSON object could be decoded

[kasimte]

It looks like it is trying to read a json file on this line:

QARC/videodatasets/generate.py

Line 42 in 02c0817

data = json.load(json_file)

Did you print the filename and check if the json file exists?

[BoogalooXiang]

Yeah the json file do exist but I found it was an empty file when I opened it.
I used
print json_file
before
data = json.load(json_file)
and it showed:
<open file 'tmp_0.flv.json', mode 'r' at 0x7f002321f390>

[kasimte]

That looks like the culprit. If you get the training data processing to work, I would be grateful if you would let me know. I tried following the README instructions and ended up with files with a lot of NaNs that couldn't be used for training.