gstreamer/gst-inspect.markdown
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gst-inspect

This page last changed on May 30, 2012 by xartigas.

This is the Linux man page for the gst-inspect tool. As such, it is very Linux-centric regarding path specification and plugin names. Please be patient while it is rewritten to be more generic.

Name

gst-inspect - print info about a GStreamer plugin or element

Synopsis

gst-inspect [OPTION...] [PLUGIN|ELEMENT]

Description

gst-inspect is a tool that prints out information on available GStreamer plugins, information about a particular plugin, or information about a particular element. When executed with no PLUGIN or ELEMENT argument, gst-inspect will print a list of all plugins and elements together with a sumary. When executed with a PLUGIN or ELEMENT argument, gst-inspect will print information about that plug-in or element.

Options

gst-inspect accepts the following arguments and options:

PLUGIN

Name of a plugin. This is a file name like %GSTREAMER_SDK_ROOT_X86%\lib\gstreamer-0.10\libgstaudiotestsrc.dll for example.

ELEMENT

Name of an element. This is the name of an element, like audiotestsrc for example

--help

Print help synopsis and available FLAGS

--gst-info-mask=FLAGS

GStreamer info flags to set (list with --help)

 -a, --print-all

Print all plugins and elements

 --print-plugin-auto-install-info

Print a machine-parsable list of features the specified plugin provides. Useful in connection with external automatic plugin installation mechanisms.

 --gst-debug-mask=FLAGS

GStreamer debugging flags to set (list with --help)

 --gst-mask=FLAGS

GStreamer info and debugging flags to set (list with --help)

 --gst-plugin-spew

GStreamer info flags to set Enable printout of errors while loading GStreamer plugins

 --gst-plugin-path=PATH

Add directories separated with ':' to the plugin search path

Example

gst-inspect-0.10 audiotestsrc

should produce:

Factory Details:
  Long name:    Audio test source
  Class:        Source/Audio
  Description:  Creates audio test signals of given frequency and volume
  Author(s):    Stefan Kost <ensonic@users.sf.net>
  Rank:         none (0)
Plugin Details:
  Name:                 audiotestsrc
  Description:          Creates audio test signals of given frequency and volume
  Filename:             I:\gstreamer-sdk\2012.5\x86\lib\gstreamer-0.10\libgstaudiotestsrc.dll
  Version:              0.10.36
  License:              LGPL
  Source module:        gst-plugins-base
  Source release date:  2012-02-20
  Binary package:       GStreamer Base Plug-ins source release
  Origin URL:           Unknown package origin
GObject
 +----GstObject
       +----GstElement
             +----GstBaseSrc
                   +----GstAudioTestSrc
Pad Templates:
  SRC template: 'src'
    Availability: Always
    Capabilities:
      audio/x-raw-int
             endianness: 1234
                 signed: true
                  width: 16
                  depth: 16
                   rate: [ 1, 2147483647 ]
               channels: [ 1, 2 ]
      audio/x-raw-int
             endianness: 1234
                 signed: true
                  width: 32
                  depth: 32
                   rate: [ 1, 2147483647 ]
               channels: [ 1, 2 ]
      audio/x-raw-float
             endianness: 1234
                  width: { 32, 64 }
                   rate: [ 1, 2147483647 ]
               channels: [ 1, 2 ]

Element Flags:
  no flags set
Element Implementation:
  Has change_state() function: gst_base_src_change_state
  Has custom save_thyself() function: gst_element_save_thyself
  Has custom restore_thyself() function: gst_element_restore_thyself
Element has no clocking capabilities.
Element has no indexing capabilities.
Element has no URI handling capabilities.
Pads:
  SRC: 'src'
    Implementation:
      Has getrangefunc(): gst_base_src_pad_get_range
      Has custom eventfunc(): gst_base_src_event_handler
      Has custom queryfunc(): gst_base_src_query
      Has custom iterintlinkfunc(): gst_pad_iterate_internal_links_default
      Has getcapsfunc(): gst_base_src_getcaps
      Has setcapsfunc(): gst_base_src_setcaps
      Has acceptcapsfunc(): gst_pad_acceptcaps_default
      Has fixatecapsfunc(): 62B82E10
    Pad Template: 'src'
Element Properties:
  name                : The name of the object
                        flags: readable, writable
                        String. Default: "audiotestsrc0"
  blocksize           : Size in bytes to read per buffer (-1 = default)
                        flags: readable, writable
                        Unsigned Long. Range: 0 - 4294967295 Default: 4294967295
  num-buffers         : Number of buffers to output before sending EOS (-1 = unlimited)
                        flags: readable, writable
                        Integer. Range: -1 - 2147483647 Default: -1
  typefind            : Run typefind before negotiating
                        flags: readable, writable
                        Boolean. Default: false
  do-timestamp        : Apply current stream time to buffers
                        flags: readable, writable
                        Boolean. Default: false
  samplesperbuffer    : Number of samples in each outgoing buffer
                        flags: readable, writable
                        Integer. Range: 1 - 2147483647 Default: 1024
  wave                : Oscillator waveform
                        flags: readable, writable, controllable
                        Enum "GstAudioTestSrcWave" Default: 0, "sine"
                           (0): sine             - Sine
                           (1): square           - Square
                           (2): saw              - Saw
                           (3): triangle         - Triangle
                           (4): silence          - Silence
                           (5): white-noise      - White uniform noise
                           (6): pink-noise       - Pink noise
                           (7): sine-table       - Sine table
                           (8): ticks            - Periodic Ticks
                           (9): gaussian-noise   - White Gaussian noise
                           (10): red-noise        - Red (brownian) noise
                           (11): blue-noise       - Blue noise
                           (12): violet-noise     - Violet noise
  freq                : Frequency of test signal
                        flags: readable, writable, controllable
                        Double. Range:               0 -           20000 Default:             440
  volume              : Volume of test signal
                        flags: readable, writable, controllable
                        Double. Range:               0 -               1 Default:             0.8
  is-live             : Whether to act as a live source
                        flags: readable, writable
                        Boolean. Default: false
  timestamp-offset    : An offset added to timestamps set on buffers (in ns)
                        flags: readable, writable
                        Integer64. Range: -9223372036854775808 - 9223372036854775807 Default: 0
  can-activate-push   : Can activate in push mode
                        flags: readable, writable
                        Boolean. Default: true
  can-activate-pull   : Can activate in pull mode
                        flags: readable, writable
                        Boolean. Default: false

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