Gstreamer appsrc about kaldi-gstreamer-server HOT 13 CLOSED

This usually happens when the plugin is not found. You can set the path by something like:

export GST_PLUGIN_PATH=~/tools/gst-kaldi-nnet2-online/src

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P.S. post-processor and full-post-processor properties can be used with nnet2 models.

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Thank your for your answer!

I already set KALDI_ROOT et GST_PLUGIN_PATH and gst-inspect-1.0 kaldinnet2onlinedecoder printed me the properties properly. I tried different approaches to set manually is-live to TRUE but it didn't work.

For 'post-processor' and 'full-processor' (logging also), the properties aren't found nor when looking at the list properties for kaldinnet2onlinedecode..

I used sample_english_nnet2.yaml with modified parameters by the way!

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Can you post your yaml file?

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Sure, here it is (in plain text file I couldn't post a yaml file?) : sample_librispeech.txt. I only changed the models and values from sample_english_nnet2.yaml

The commented lines gave me AttributeError

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Can you post the file that causes the problem, without commenting out lines? There are many commented lines in the file you gave.

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BTW, post-processor and full-post-processor are not properties of the decoder, but rather global properties. The corresponding lines should not be intented, just like in the original sample_english_nnet2.yaml. But it's hard to tell from your commented file is this what you did.

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The only file I modified is sample_english_nnet2.yaml. Each commented line gave me an TypeError (and not an AttributeError sorry), basically :

TypeError: object of type Gstkaldinnet2onlinedecoder' does not have property 'x'

If I comment them I end up with the error I mentioned in my first post.
All the errors are from kaldigstserver/decoder2.py, line 62 for the first error mentioned and line 59 for the others!

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I need to see the exact file that causes you the problem.

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Hi,

I sent you an email.

I've redone all the install (kaldi, gst-kaldi-nnet2-online and kaldi-gstreamer-server), checked the packages dependencies and launched the command line (without modifications of any files) :

python kaldigstserver/worker.py -u ws://localhost:8888/worker/ws/speech -c sample_english_nnet2.yaml

I end up with the same error I described in my first post. The master is okay, kaldinnet2onlinedecoder is found but the worker doesn't start.

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Turned out it was caused by the 'appsrc' GStreamer element not being found. Probably caused by broken install of GStreamer or something similar.

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I run into a similar problem with running Kaldi "worker". Here is the error message:

AttributeError: 'NoneType' object has no attribute 'set_property'

===================================================
sudo python kaldigstserver/worker.py -u ws://localhost:8888/worker/ws/speech -c sample_worker.yaml
DEBUG 2019-01-22 08:35:06,207 Starting up worker
2019-01-22 08:35:06 - INFO: decoder: Creating decoder using conf: {'timeout-decoder': 10, 'post-processor': "perl -npe 'BEGIN {use IO::Handle; STDOUT->autoflush(1);} s/(.*)/\1./;'", 'logging': {'version': 1, 'root': {'level': 'DEBUG', 'handlers': ['console']}, 'formatters': {'simpleFormater': {'datefmt': '%Y-%m-%d %H:%M:%S', 'format': '%(asctime)s - %(levelname)7s: %(name)10s: %(message)s'}}, 'disable_existing_loggers': False, 'handlers': {'console': {'formatter': 'simpleFormater', 'class': 'logging.StreamHandler', 'level': 'DEBUG'}}}, 'decoder': {'word-syms': 'test/models/english/voxforge/tri2b_mmi_b0.05/words.txt', 'model': 'test/models/english/voxforge/tri2b_mmi_b0.05/final.mdl', 'lda-mat': 'test/models/english/voxforge/tri2b_mmi_b0.05/final.mat', 'fst': 'test/models/english/voxforge/tri2b_mmi_b0.05/HCLG.fst', 'silence-phones': '1:2:3:4:5'}, 'silence-timeout': 60, 'out-dir': 'tmp', 'use-vad': False}
2019-01-22 08:35:06 - INFO: decoder: Setting decoder property: word-syms = test/models/english/voxforge/tri2b_mmi_b0.05/words.txt
Traceback (most recent call last):
File "kaldigstserver/worker.py", line 419, in
main()
File "kaldigstserver/worker.py", line 411, in main
decoder_pipeline = DecoderPipeline(conf)
File "/home/haudio/ai/tools/kaldi/tools/kaldi-gstreamer-server/kaldigstserver/decoder.py", line 25, in init
self.create_pipeline(conf)
File "/home/haudio/ai/tools/kaldi/tools/kaldi-gstreamer-server/kaldigstserver/decoder.py", line 55, in create_pipeline
self.asr.set_property(key, val)
AttributeError: 'NoneType' object has no attribute 'set_property'

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@HoneywellDemo0623
The issue is that the decoder failed to load the gstreamer plugin onlinegmmdecodefaster.
If you compiled it successfully, you should be able to run (from ~/kaldi/src/gst-plugin):
gst-inspect-1.0 onlinegmmdecodefaster
If the command run successfully, check that you set GST_PLUGIN_PATH env to the right path.
You can check it with running:
GST_PLUGIN_PATH=~/kaldi/src/gst-plugin gst-inspect-1.0 onlinegmmdecodefaster
(set kaldi root directory to the right path)

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