Hi :wave:

When I try to use --hw-accel vaapi the GStreamer pipeline does not run. I don't know if I miss something or if some feature is missing (NYI?) in the driver...?

$ GST_DEBUG=2 webcam-filters --input-dev /dev/video0 --output-dev /dev/video3 --background-blur 150 --hw-accel-api vaapi
Selected input: media-type=image/jpeg, width=1280 height=720 framerate=30/1
0:00:00.452510507 78424      0x1ea2550 WARN              vaapiblend gstvaapiblend.c:184:gst_vaapi_blend_initialize:<vaapiblend0> VPP does not support global alpha blending

(python3:78424): GStreamer-CRITICAL **: 21:06:44.103: The created element should be floating, this is probably caused by faulty bindings

(python3:78424): GStreamer-CRITICAL **: 21:06:44.104: The created element should be floating, this is probably caused by faulty bindings

(python3:78424): GStreamer-CRITICAL **: 21:06:44.105: The created element should be floating, this is probably caused by faulty bindings
Pipeline: READY
Pipeline: PAUSED
0:00:00.533376004 78424      0x201ecc0 WARN          v4l2bufferpool gstv4l2bufferpool.c:814:gst_v4l2_buffer_pool_start:<v4l2src1:pool0:src> Uncertain or not enough buffers, enabling copy threshold
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
0:00:01.189612022 78424      0x201ef00 WARN             vaapifilter gstvaapifilter.c:2409:gst_vaapi_filter_set_colorimetry_unlocked:<vaapifilter2> driver does not support '2:4:5:1' input colorimetry. vpp may fail or produce unexpected results.
0:00:01.189625357 78424      0x201ef00 WARN             vaapifilter gstvaapifilter.c:2419:gst_vaapi_filter_set_colorimetry_unlocked:<vaapifilter2> driver does not support 'sRGB' output colorimetry. vpp may fail or produce unexpected results.
0:00:01.209019915 78424      0x201ecc0 WARN                 v4l2src gstv4l2src.c:1001:gst_v4l2src_create:<v4l2src1> lost frames detected: count = 1 - ts: 0:00:00.671366999
0:00:01.212918189 78424 0x7f93140021e0 WARN           basetransform gstbasetransform.c:1370:gst_base_transform_setcaps:<vaapipostproc1> transform could not transform video/x-raw, width=(int)1280, height=(int)720, framerate=(fraction)30/1, interlace-mode=(string)progressive, pixel-aspect-ratio=(fraction)1/1, multiview-mode=(string)mono, multiview-flags=(GstVideoMultiviewFlagsSet)0:ffffffff:/right-view-first/left-flipped/left-flopped/right-flipped/right-flopped/half-aspect/mixed-mono, format=(string)RGBx in anything we support

The last line then repeats... Any idea? (Maybe the line ending with VPP does not support global alpha blending shows the problem)

On Ubuntu 21.04 (on which I had to install python3-gst-1.0):

$ webcam-filters --version
0.2.0
$ webcam-filters --input-dev /dev/video0 --output-dev /dev/video3 --background-blur 150
Traceback (most recent call last):
  File "/home/me/.local/bin/webcam-filters", line 8, in <module>
    sys.exit(cli())
  File "/home/me/.local/lib/python3.9/site-packages/click/core.py", line 1137, in __call__
    return self.main(*args, **kwargs)
  File "/home/me/.local/lib/python3.9/site-packages/click/core.py", line 1062, in main
    rv = self.invoke(ctx)
  File "/home/me/.local/lib/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/me/.local/lib/python3.9/site-packages/click/core.py", line 763, in invoke
    return __callback(*args, **kwargs)
  File "/home/me/.local/lib/python3.9/site-packages/webcam_filters/main.py", line 137, in cli
    add_filters(
  File "/home/me/.local/lib/python3.9/site-packages/webcam_filters/gst.py", line 87, in add_filters
    structs = sorted(
  File "/home/me/.local/lib/python3.9/site-packages/webcam_filters/gst.py", line 90, in <lambda>
    Fraction(str(x.get_value("framerate"))),
  File "/usr/lib/python3.9/fractions.py", line 115, in __new__
    raise ValueError('Invalid literal for Fraction: %r' %
ValueError: Invalid literal for Fraction: '{15/2,5/1}'

[23:21:59] ~ $ GST_DEBUG=GST_PLUGIN_LOADING:4,pyplugin:6 webcam-filters --background-blur 50 --input-dev /dev/video5 --output-dev /dev/video0
0:00:00.000268384 18134 0x5626dde96a70 INFO      GST_PLUGIN_LOADING gstplugin.c:325:_priv_gst_plugin_initialize: registering 0 static plugins
0:00:00.000325815 18134 0x5626dde96a70 INFO      GST_PLUGIN_LOADING gstplugin.c:233:gst_plugin_register_static: registered static plugin "staticelements"
0:00:00.000332994 18134 0x5626dde96a70 INFO      GST_PLUGIN_LOADING gstplugin.c:235:gst_plugin_register_static: added static plugin "staticelements", result: 1
0:00:00.197454235 18134 0x5626dde96a70 INFO      GST_PLUGIN_LOADING gstplugin.c:915:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib64/gstreamer-1.0/libgstvideo4linux2.so" loaded
Selectd input: media-type=image/jpeg, width=1280 height=720 framerate=30/1
0:00:00.210186485 18134 0x5626dde96a70 INFO      GST_PLUGIN_LOADING gstplugin.c:915:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib64/gstreamer-1.0/libgstcoreelements.so" loaded
0:00:00.215944899 18134 0x5626dde96a70 INFO      GST_PLUGIN_LOADING gstplugin.c:915:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib64/gstreamer-1.0/libgstplayback.so" loaded
0:00:00.218019679 18134 0x5626dde96a70 INFO      GST_PLUGIN_LOADING gstplugin.c:915:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib64/gstreamer-1.0/libgstvideoconvert.so" loaded
Traceback (most recent call last):
  File "/home/hector/.local/bin/webcam-filters", line 8, in <module>
    sys.exit(cli())
  File "/home/hector/.local/pipx/venvs/webcam-filters/lib64/python3.9/site-packages/click/core.py", line 1137, in __call__
    return self.main(*args, **kwargs)
  File "/home/hector/.local/pipx/venvs/webcam-filters/lib64/python3.9/site-packages/click/core.py", line 1062, in main
    rv = self.invoke(ctx)
  File "/home/hector/.local/pipx/venvs/webcam-filters/lib64/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/hector/.local/pipx/venvs/webcam-filters/lib64/python3.9/site-packages/click/core.py", line 763, in invoke
    return __callback(*args, **kwargs)
  File "/home/hector/.local/pipx/venvs/webcam-filters/lib64/python3.9/site-packages/webcam_filters/main.py", line 139, in cli
    add_filters(
  File "/home/hector/.local/pipx/venvs/webcam-filters/lib64/python3.9/site-packages/webcam_filters/gst.py", line 159, in add_filters
    selfie.set_property("model", selfie_segmentation_model)
AttributeError: 'NoneType' object has no attribute 'set_property'

@hsanjuan creating a new issue for this.

I don't see libgstpython.so being loaded, which means none of Python plugins also get loaded. Normally, it looks something like this:

0:00:01.029100122 12710 0x55eb5f0b6c70 LOG                 pyplugin gstpythonplugin.c:232:plugin_init: Checking to see if libpython is already loaded                                                                                    
0:00:01.029108435 12710 0x55eb5f0b6c70 LOG                 pyplugin gstpythonplugin.c:235:plugin_init: libpython is already loaded                
0:00:01.029111008 12710 0x55eb5f0b6c70 LOG                 pyplugin gstpythonplugin.c:254:plugin_init: python was already initialized
0:00:01.029116664 12710 0x55eb5f0b6c70 LOG                 pyplugin gstpythonplugin.c:274:plugin_init: Running with python version '3.9.6 (default, Jun 30 2021, 10:22:16) 
[GCC 11.1.0]'                                                                                                                                                                                                                                 
0:00:01.029118772 12710 0x55eb5f0b6c70 LOG                 pyplugin gstpythonplugin.c:276:plugin_init: initializing pygobject                           
0:00:01.029188105 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:156:gst_python_plugin_load: GST_PLUGIN_PATH set to /home/gamma/.local/pipx/venvs/webcam-filters/lib/python3.9/site-packages/webcam_filters/plugins:
0:00:01.029203475 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:48:gst_python_plugin_load_file: loading plugin cv2_boxfilter                                                               
0:00:01.164450264 12710 0x55eb5f0b6c70 INFO                pyplugin gstpythonplugin.c:103:gst_python_plugin_load_file: Valid plugin             
0:00:01.164474670 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:48:gst_python_plugin_load_file: loading plugin numpy_where                                                                                              0:00:01.166064073 12710 0x55eb5f0b6c70 INFO                pyplugin gstpythonplugin.c:103:gst_python_plugin_load_file: Valid plugin
0:00:01.166078845 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:48:gst_python_plugin_load_file: loading plugin selfie_segmentation                                                                           
0:00:01.356304339 12710 0x55eb5f0b6c70 INFO                pyplugin gstpythonplugin.c:103:gst_python_plugin_load_file: Valid plugin                                                
0:00:01.356338024 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:121:gst_python_load_directory: Couldn't open Python plugin dir: Error opening directory “python”: No such file or directory
0:00:01.356344484 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:176:gst_python_plugin_load: GST_PLUGIN_SYSTEM_PATH not set
0:00:01.356352301 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:121:gst_python_load_directory: Couldn't open Python plugin dir: Error opening directory “/home/gamma/.gstreamer-1.0/plugins/python”: No such file or dir
ectory                                                                                                                                                                                                                                        
0:00:01.356358134 12710 0x55eb5f0b6c70 DEBUG               pyplugin gstpythonplugin.c:121:gst_python_load_directory: Couldn't open Python plugin dir: Error opening directory “lib/gstreamer-1.0/python”: No such file or directory
0:00:01.356364671 12710 0x55eb5f0b6c70 INFO      GST_PLUGIN_LOADING gstplugin.c:915:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib/gstreamer-1.0/libgstpython.so" loaded

The only thing I can think of is libgstpython.so isn't in a path that GStreamer looks for plugins by default. What happens if you add /usr/lib64/gstreamer-1.0/ to GST_PLUGIN_PATH?

GST_PLUGIN_PATH="/usr/lib64/gstreamer-1.0:$GST_PLUGIN_PATH" GST_DEBUG=GST_PLUGIN_LOADING:4,pyplugin:6 webcam-filters --background-blur 50 ...

Originally posted by @hsanjuan in https://github.com/jashandeep-sohi/webcam-filters/issues/4#issuecomment-913229787

Running Debian bullseye here, with python 3.9 and gstreamer 1.18.4 (though python3-gst 1.18.3). When I try to start things up (after creating a v4l2loopback device per the README, at /dev/video11):

$ webcam-filters --input-dev /dev/video2 --output-dev /dev/video11 --background-blur 150
Traceback (most recent call last):
  File "/home/brian/.local/bin/webcam-filters", line 8, in <module>
    sys.exit(cli())
  File "/home/brian/.local/pipx/venvs/webcam-filters/lib/python3.9/site-packages/click/core.py", line 1137, in __call__
    return self.main(*args, **kwargs)
  File "/home/brian/.local/pipx/venvs/webcam-filters/lib/python3.9/site-packages/click/core.py", line 1062, in main
    rv = self.invoke(ctx)
  File "/home/brian/.local/pipx/venvs/webcam-filters/lib/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/brian/.local/pipx/venvs/webcam-filters/lib/python3.9/site-packages/click/core.py", line 763, in invoke
    return __callback(*args, **kwargs)
  File "/home/brian/.local/pipx/venvs/webcam-filters/lib/python3.9/site-packages/webcam_filters/main.py", line 137, in cli
    add_filters(
  File "/home/brian/.local/pipx/venvs/webcam-filters/lib/python3.9/site-packages/webcam_filters/gst.py", line 152, in add_filters
    selfie.set_property("model", selfie_segmentation_model)
AttributeError: 'NoneType' object has no attribute 'set_property'

As stated in #3, I have a problem where the command, when launched with some parameters for resolution / framerate, exits after one second without showing any error message. Example:

$ webcam-filters --input-dev /dev/video0 --output-dev /dev/video3 --background-blur 150
Selectd input: media-type=image/jpeg, width=1280 height=720 framerate=30/1

(python3:125359): GStreamer-CRITICAL **: 20:04:27.677: The created element should be floating, this is probably caused by faulty bindings

(python3:125359): GStreamer-CRITICAL **: 20:04:27.677: The created element should be floating, this is probably caused by faulty bindings

(python3:125359): GStreamer-CRITICAL **: 20:04:27.678: The created element should be floating, this is probably caused by faulty bindings
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
$ 

Actually, at least with my webcam (a Logitech HD Pro C920), the only working parameters are when setting the resolution / framerate to 1920x1080 at 30 FPS (image/jpeg).

Just tried at the moment to run it with the env variable GST_DEBUG=1 and I get this error just before it gives back the prompt:

0:00:01.066575233 125506      0x215ac00 ERROR                 python numpy_where.py:148:do_aggregate: buffer is too small for requested array

1. Created a virtualenv
2. Installed pipx
3. Got below error:

PIP STDOUT
----------

PIP STDERR
----------
ERROR: Could not find a version that satisfies the requirement webcam-filters (from versions: none)
ERROR: No matching distribution found for webcam-filters

$ python3 --version Python 3.7.7

$ webcam-filters --input-dev /dev/video0 --output-dev /dev/video3 --background-blur 150

Traceback (most recent call last):
  File "/home/eeroh/.local/bin/webcam-filters", line 8, in <module>
    sys.exit(cli())
  File "/home/eeroh/.local/lib/python3.9/site-packages/click/core.py", line 1137, in __call__
    return self.main(*args, **kwargs)
  File "/home/eeroh/.local/lib/python3.9/site-packages/click/core.py", line 1062, in main
    rv = self.invoke(ctx)
  File "/home/eeroh/.local/lib/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/eeroh/.local/lib/python3.9/site-packages/click/core.py", line 763, in invoke
    return __callback(*args, **kwargs)
  File "/home/eeroh/.local/lib/python3.9/site-packages/webcam_filters/main.py", line 137, in cli
    add_filters(
  File "/home/eeroh/.local/lib/python3.9/site-packages/webcam_filters/gst.py", line 68, in add_filters
    for c in caps:
TypeError: 'Caps' object is not iterable

I'm on master

❯ webcam-filters --input-dev /dev/video0 --output-dev /dev/vid
eo3 --background-blur 150
Traceback (most recent call last):
  File "/home/raffaele/.local/bin/webcam-filters", line 8, in <module>
    sys.exit(main())
  File "/home/raffaele/.local/lib/python3.10/site-packages/webcam_filters/__main__.py", line 5, in main
    cli.main(prog_name="webcam-filters")
  File "/home/raffaele/.local/lib/python3.10/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/home/raffaele/.local/lib/python3.10/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/raffaele/.local/lib/python3.10/site-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
  File "/home/raffaele/.local/lib/python3.10/site-packages/webcam_filters/main.py", line 156, in cli
    p.run()
  File "/home/raffaele/.local/lib/python3.10/site-packages/webcam_filters/gst.py", line 114, in run
    pipeline = self.build_pipeline()
  File "/home/raffaele/.local/lib/python3.10/site-packages/webcam_filters/gst.py", line 186, in build_pipeline
    input_caps = self.select_input()
  File "/home/raffaele/.local/lib/python3.10/site-packages/webcam_filters/gst.py", line 150, in select_input
    for s in caps:
TypeError: 'Caps' object is not iterable

Hi, I'm still struggling to get blur to work on Ubuntu 20.04. I struggled with #4 but got past that by installing gstreamer1.0-python3-plugin-loader. The command does not 'crash' now but it spits out an infinite stream of errors:

% GST_DEBUG=GST_PLUGIN_LOADING:4,pyplugin:6 webcam-filters --input-dev /dev/video0 --output-dev /dev/video3 --background-blur 150 | sed 's/jgrgt/jgrgt/g'
0:00:00.000339346 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:318:_priv_gst_plugin_initialize: registering 0 static plugins
0:00:00.000423577 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:226:gst_plugin_register_static: registered static plugin "staticelements"
0:00:00.000450943 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:228:gst_plugin_register_static: added static plugin "staticelements", result: 1
0:00:00.008871418 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:1524:gst_plugin_ext_dep_extract_env_vars_paths:<plugin36> ignoring environment variable content '': either not an absolute path or not a path at all
0:00:00.008884089 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:1524:gst_plugin_ext_dep_extract_env_vars_paths:<plugin36> ignoring environment variable content '1': either not an absolute path or not a path at all
0:00:00.009128618 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:1524:gst_plugin_ext_dep_extract_env_vars_paths:<plugin106> ignoring environment variable content '': either not an absolute path or not a path at all
0:00:00.013450325 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:902:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideo4linux2.so" loaded
Selectd input: media-type=image/jpeg, width=1280 height=720 framerate=30/1
0:00:00.016463374 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:902:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstcoreelements.so" loaded
0:00:00.017510553 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:902:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstplayback.so" loaded
0:00:00.018003740 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:902:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstvideoconvert.so" loaded
0:00:00.021918098 88314      0x1229670 LOG                 pyplugin gstpythonplugin.c:227:plugin_init: Checking to see if libpython is already loaded
0:00:00.021953189 88314      0x1229670 LOG                 pyplugin gstpythonplugin.c:230:plugin_init: libpython is already loaded
0:00:00.021958312 88314      0x1229670 LOG                 pyplugin gstpythonplugin.c:249:plugin_init: python was already initialized
0:00:00.021967731 88314      0x1229670 LOG                 pyplugin gstpythonplugin.c:253:plugin_init: Running with python version '3.8.10 (default, Jun  2 2021, 10:49:15) 
[GCC 9.4.0]'
0:00:00.021972050 88314      0x1229670 LOG                 pyplugin gstpythonplugin.c:255:plugin_init: initializing pygobject
0:00:00.022180382 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:154:gst_python_plugin_load: GST_PLUGIN_PATH set to /home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins:
0:00:00.022221452 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:48:gst_python_plugin_load_file: loading plugin cv2_boxfilter
0:00:00.144117053 88314      0x1229670 INFO                pyplugin gstpythonplugin.c:103:gst_python_plugin_load_file: Valid plugin
0:00:00.144157775 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:48:gst_python_plugin_load_file: loading plugin selfie_segmentation
0:00:00.395388933 88314      0x1229670 INFO                pyplugin gstpythonplugin.c:103:gst_python_plugin_load_file: Valid plugin
0:00:00.395410970 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:48:gst_python_plugin_load_file: loading plugin numpy_where
0:00:00.396734247 88314      0x1229670 INFO                pyplugin gstpythonplugin.c:103:gst_python_plugin_load_file: Valid plugin
0:00:00.396762556 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:121:gst_python_load_directory: Couldn't open Python plugin dir: Error opening directory “python”: No such file or directory
0:00:00.396772276 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:172:gst_python_plugin_load: GST_PLUGIN_SYSTEM_PATH not set
0:00:00.396783639 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:121:gst_python_load_directory: Couldn't open Python plugin dir: Error opening directory “/home/jgrgt/.gstreamer-1.0/plugins/python”: No such file or directory
0:00:00.396793250 88314      0x1229670 DEBUG               pyplugin gstpythonplugin.c:121:gst_python_load_directory: Couldn't open Python plugin dir: Error opening directory “lib/x86_64-linux-gnu/gstreamer-1.0/python”: No such file or directory
0:00:00.396802097 88314      0x1229670 INFO      GST_PLUGIN_LOADING gstplugin.c:902:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstpython.so" loaded
INFO: Created TensorFlow Lite XNNPACK delegate for CPU.
0:00:00.420456846 88314      0x1ecccc0 INFO      GST_PLUGIN_LOADING gstplugin.c:902:_priv_gst_plugin_load_file_for_registry: plugin "/usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstjpeg.so" loaded
Traceback (most recent call last):
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/selfie_segmentation.py", line 151, in do_transform_ip
    with inbuf_info:
AttributeError: __enter__

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
Traceback (most recent call last):
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/cv2_boxfilter.py", line 104, in do_transform_ip
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/selfie_segmentation.py", line 169, in do_transform_ip
    with inbuf_info:
AttributeError: __enter__
    except Gst.MapError as e:

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gi/overrides/__init__.py", line 32, in __getattr__
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/cv2_boxfilter.py", line 115, in do_transform_ip
    return getattr(self._introspection_module, name)
  File "/usr/lib/python3/dist-packages/gi/module.py", line 131, in __getattr__
    except Gst.MapError as e:
  File "/usr/lib/python3/dist-packages/gi/overrides/__init__.py", line 32, in __getattr__
    raise AttributeError("%r object has no attribute %r" % (
AttributeError: 'gi.repository.Gst' object has no attribute 'MapError'
    return getattr(self._introspection_module, name)
  File "/usr/lib/python3/dist-packages/gi/module.py", line 131, in __getattr__
    raise AttributeError("%r object has no attribute %r" % (
AttributeError: 'gi.repository.Gst' object has no attribute 'MapError'
Traceback (most recent call last):
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/cv2_boxfilter.py", line 104, in do_transform_ip
Traceback (most recent call last):
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/selfie_segmentation.py", line 151, in do_transform_ip
    with inbuf_info:
AttributeError: __enter__

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
    with inbuf_info:
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/cv2_boxfilter.py", line 115, in do_transform_ip
AttributeError: __enter__

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/selfie_segmentation.py", line 169, in do_transform_ip
    except Gst.MapError as e:
  File "/usr/lib/python3/dist-packages/gi/overrides/__init__.py", line 32, in __getattr__
    except Gst.MapError as e:
  File "/usr/lib/python3/dist-packages/gi/overrides/__init__.py", line 32, in __getattr__
    return getattr(self._introspection_module, name)
    return getattr(self._introspection_module, name)
  File "/usr/lib/python3/dist-packages/gi/module.py", line 131, in __getattr__
  File "/usr/lib/python3/dist-packages/gi/module.py", line 131, in __getattr__
    raise AttributeError("%r object has no attribute %r" % (
    raise AttributeError("%r object has no attribute %r" % (
AttributeError: 'gi.repository.Gst' object has no attribute 'MapError'
AttributeError: 'gi.repository.Gst' object has no attribute 'MapError'
Traceback (most recent call last):
  File "/home/jgrgt/.local/lib/python3.8/site-packages/webcam_filters/plugins/python/numpy_where.py", line 109, in do_aggregate
    self.selected_samples(cbuf.pts, cbuf.dts, cbuf.duration, None)
AttributeError: 'Where' object has no attribute 'selected_samples'

Any ideas what I'm still missing?

Bumps click from 8.0.3 to 8.1.3.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps opencv-contrib-python from 4.5.3.56 to 4.6.0.66.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps rich from 10.16.2 to 13.0.0.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps opencv-contrib-python from 4.6.0.66 to 4.7.0.68.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps numpy from 1.23.4 to 1.24.1.

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

Bumps mediapipe from 0.9.0 to 0.9.0.1.

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Hello. When I try to start webcam-filters, I get this error:

# webcam-filters --input-dev /dev/video0 --output-dev /dev/video3
Selected input: media-type=image/jpeg, width=1280 height=720 framerate=30/1
Error from /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0: Cannot identify device '/dev/video3'.

I haven't got video3 device, so error isn't that device is busy. Starting this with different outputs has no effect:

# webcam-filters --input-dev /dev/video0 --output-dev /dev/video10
Selected input: media-type=image/jpeg, width=1280 height=720 framerate=30/1
Error from /GstPipeline:pipeline0/GstV4l2Sink:v4l2sink0: Cannot identify device '/dev/video10'.

I sure that my camera is video0. I installed webcam-filters via pipx, but using nix doesn't fix this error. I have satisfied all dependencies. I use Ach Linux with

# uname -a
Linux arch 5.10.70-1-lts #1 SMP Thu, 30 Sep 2021 09:43:10 +0000 x86_64 GNU/Linux

How can I fix this error? Thanks for your help.

P. S. Sorry for my english, I'm from another county.

When running webcam-filters I get the following traceback

➜  ~ webcam-filters --verbose --input-dev /dev/video0 --output-dev /dev/video3 --background-blur 150

Traceback (most recent call last):
  File "/home/restore/.local/bin/webcam-filters", line 9, in <module>
    sys.exit(main())
  File "/home/restore/.local/lib/python3.8/site-packages/webcam_filters/__main__.py", line 5, in main
    cli.main(prog_name="webcam-filters")
  File "/home/restore/.local/lib/python3.8/site-packages/click/core.py", line 1062, in main
    rv = self.invoke(ctx)
  File "/home/restore/.local/lib/python3.8/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/restore/.local/lib/python3.8/site-packages/click/core.py", line 763, in invoke
    return __callback(*args, **kwargs)
  File "/home/restore/.local/lib/python3.8/site-packages/webcam_filters/main.py", line 154, in cli
    add_filters(
  File "/home/restore/.local/lib/python3.8/site-packages/webcam_filters/gst.py", line 98, in add_filters
    for s in caps:
TypeError: 'Caps' object is not iterable

I tried different devices but always the same result. Anything else I can check?