GNU Radio World

Stream Demux demo

Adapted from GNU Radio's own example (gr-blocks/examples/stream_demux_demo.grc).

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Blocks used

BlockModuleUsed
QT GUI Time SinkGNU Radio4
Tag ObjectGNU Radio3
Stream DemuxGNU Radio1
ThrottleGNU Radio1
VariableGNU Radio1
Vector SourceGNU Radio1

Flowgraph source

blocks/stream_demux.grc
options:
  parameters:
    author: David Pi
    catch_exceptions: 'True'
    category: '[GRC Hier Blocks]'
    cmake_opt: ''
    comment: ''
    copyright: GNU GPL 3.0+
    description: Adapted from GNU Radio's own example (gr-blocks/examples/stream_demux_demo.grc).
    gen_cmake: 'On'
    gen_linking: dynamic
    generate_options: qt_gui
    hier_block_src_path: '.:'
    id: stream_demux_demo
    max_nouts: '0'
    output_language: python
    placement: (0,0)
    qt_qss_theme: ''
    realtime_scheduling: ''
    run: 'True'
    run_command: '{python} -u {filename}'
    run_options: prompt
    sizing_mode: fixed
    thread_safe_setters: ''
    title: Stream Demux demo
    window_size: (1000,1000)
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 10]
    rotation: 0
    state: enabled
blocks:
- name: samp_rate
  id: variable
  parameters:
    comment: ''
    value: '32000'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [600, 10]
    rotation: 0
    state: enabled
- name: tag0
  id: variable_tag_object
  parameters:
    comment: ''
    key: pmt.intern("key0")
    offset: '0'
    src: pmt.intern("src")
    value: pmt.intern("value0")
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [770, 10]
    rotation: 0
    state: true
- name: tag1
  id: variable_tag_object
  parameters:
    comment: ''
    key: pmt.intern("key1")
    offset: '2'
    src: pmt.intern("src")
    value: pmt.intern("value1")
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1050, 10]
    rotation: 0
    state: true
- name: tag2
  id: variable_tag_object
  parameters:
    comment: ''
    key: pmt.intern("key2")
    offset: '5'
    src: pmt.intern("src")
    value: pmt.intern("value2")
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [1330, 10]
    rotation: 0
    state: true
- name: blocks_stream_demux_0
  id: blocks_stream_demux
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    lengths: (2,3,4)
    maxoutbuf: '0'
    minoutbuf: '0'
    num_outputs: '3'
    type: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [660, 300]
    rotation: 0
    state: true
- name: blocks_throttle2_0
  id: blocks_throttle2
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    ignoretag: 'True'
    limit: auto
    maximum: '0.1'
    maxoutbuf: '0'
    minoutbuf: '0'
    samples_per_second: samp_rate
    type: float
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [330, 310]
    rotation: 0
    state: enabled
- name: blocks_vector_source_x_0
  id: blocks_vector_source_x
  parameters:
    affinity: ''
    alias: ''
    comment: ''
    maxoutbuf: '0'
    minoutbuf: '0'
    repeat: 'True'
    tags: '[tag0, tag1, tag2]'
    type: float
    vector: range(0,18)
    vlen: '1'
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [10, 320]
    rotation: 0
    state: true
- name: qtgui_time_sink_x_0
  id: qtgui_time_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    axislabels: 'True'
    color1: blue
    color10: dark blue
    color2: red
    color3: green
    color4: black
    color5: cyan
    color6: magenta
    color7: yellow
    color8: dark red
    color9: dark green
    comment: ''
    ctrlpanel: 'False'
    entags: 'True'
    grid: 'True'
    gui_hint: 0,0,1,3
    label1: Signal 1
    label10: Signal 10
    label2: Signal 2
    label3: Signal 3
    label4: Signal 4
    label5: Signal 5
    label6: Signal 6
    label7: Signal 7
    label8: Signal 8
    label9: Signal 9
    legend: 'True'
    marker1: '0'
    marker10: '-1'
    marker2: '-1'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '"Input stream"'
    nconnections: '1'
    size: '1024'
    stemplot: 'False'
    style1: '1'
    style10: '1'
    style2: '1'
    style3: '1'
    style4: '1'
    style5: '1'
    style6: '1'
    style7: '1'
    style8: '1'
    style9: '1'
    tr_chan: '0'
    tr_delay: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_slope: qtgui.TRIG_SLOPE_POS
    tr_tag: '""'
    type: float
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    ylabel: Amplitude
    ymax: '20'
    ymin: '-1'
    yunit: '""'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [330, 450]
    rotation: 0
    state: true
- name: qtgui_time_sink_x_0_0
  id: qtgui_time_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    axislabels: 'True'
    color1: blue
    color10: dark blue
    color2: red
    color3: green
    color4: black
    color5: cyan
    color6: magenta
    color7: yellow
    color8: dark red
    color9: dark green
    comment: ''
    ctrlpanel: 'False'
    entags: 'True'
    grid: 'True'
    gui_hint: 1,2,1,1
    label1: Signal 1
    label10: Signal 10
    label2: Signal 2
    label3: Signal 3
    label4: Signal 4
    label5: Signal 5
    label6: Signal 6
    label7: Signal 7
    label8: Signal 8
    label9: Signal 9
    legend: 'True'
    marker1: '0'
    marker10: '-1'
    marker2: '-1'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '"Output stream 2"'
    nconnections: '1'
    size: '1024'
    stemplot: 'False'
    style1: '1'
    style10: '1'
    style2: '1'
    style3: '1'
    style4: '1'
    style5: '1'
    style6: '1'
    style7: '1'
    style8: '1'
    style9: '1'
    tr_chan: '0'
    tr_delay: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_slope: qtgui.TRIG_SLOPE_POS
    tr_tag: '""'
    type: float
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    ylabel: Amplitude
    ymax: '20'
    ymin: '-1'
    yunit: '""'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [940, 560]
    rotation: 0
    state: true
- name: qtgui_time_sink_x_0_0_0
  id: qtgui_time_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    axislabels: 'True'
    color1: blue
    color10: dark blue
    color2: red
    color3: green
    color4: black
    color5: cyan
    color6: magenta
    color7: yellow
    color8: dark red
    color9: dark green
    comment: ''
    ctrlpanel: 'False'
    entags: 'True'
    grid: 'True'
    gui_hint: 1,0,1,1
    label1: Signal 1
    label10: Signal 10
    label2: Signal 2
    label3: Signal 3
    label4: Signal 4
    label5: Signal 5
    label6: Signal 6
    label7: Signal 7
    label8: Signal 8
    label9: Signal 9
    legend: 'True'
    marker1: '0'
    marker10: '-1'
    marker2: '-1'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '"Output stream 0"'
    nconnections: '1'
    size: '1024'
    stemplot: 'False'
    style1: '1'
    style10: '1'
    style2: '1'
    style3: '1'
    style4: '1'
    style5: '1'
    style6: '1'
    style7: '1'
    style8: '1'
    style9: '1'
    tr_chan: '0'
    tr_delay: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_slope: qtgui.TRIG_SLOPE_POS
    tr_tag: '""'
    type: float
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    ylabel: Amplitude
    ymax: '20'
    ymin: '-1'
    yunit: '""'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [940, 280]
    rotation: 0
    state: true
- name: qtgui_time_sink_x_0_0_0_0
  id: qtgui_time_sink_x
  parameters:
    affinity: ''
    alias: ''
    alpha1: '1.0'
    alpha10: '1.0'
    alpha2: '1.0'
    alpha3: '1.0'
    alpha4: '1.0'
    alpha5: '1.0'
    alpha6: '1.0'
    alpha7: '1.0'
    alpha8: '1.0'
    alpha9: '1.0'
    autoscale: 'False'
    axislabels: 'True'
    color1: blue
    color10: dark blue
    color2: red
    color3: green
    color4: black
    color5: cyan
    color6: magenta
    color7: yellow
    color8: dark red
    color9: dark green
    comment: ''
    ctrlpanel: 'False'
    entags: 'True'
    grid: 'True'
    gui_hint: 1,1,1,1
    label1: Signal 1
    label10: Signal 10
    label2: Signal 2
    label3: Signal 3
    label4: Signal 4
    label5: Signal 5
    label6: Signal 6
    label7: Signal 7
    label8: Signal 8
    label9: Signal 9
    legend: 'True'
    marker1: '0'
    marker10: '-1'
    marker2: '-1'
    marker3: '-1'
    marker4: '-1'
    marker5: '-1'
    marker6: '-1'
    marker7: '-1'
    marker8: '-1'
    marker9: '-1'
    name: '"Output stream 1"'
    nconnections: '1'
    size: '1024'
    stemplot: 'False'
    style1: '1'
    style10: '1'
    style2: '1'
    style3: '1'
    style4: '1'
    style5: '1'
    style6: '1'
    style7: '1'
    style8: '1'
    style9: '1'
    tr_chan: '0'
    tr_delay: '0'
    tr_level: '0.0'
    tr_mode: qtgui.TRIG_MODE_FREE
    tr_slope: qtgui.TRIG_SLOPE_POS
    tr_tag: '""'
    type: float
    update_time: '0.10'
    width1: '1'
    width10: '1'
    width2: '1'
    width3: '1'
    width4: '1'
    width5: '1'
    width6: '1'
    width7: '1'
    width8: '1'
    width9: '1'
    ylabel: Amplitude
    ymax: '12'
    ymin: '-1'
    yunit: '""'
    samp_rate: samp_rate
  states:
    bus_sink: false
    bus_source: false
    bus_structure: null
    coordinate: [940, 420]
    rotation: 0
    state: true
connections:
- [blocks_stream_demux_0, '0', qtgui_time_sink_x_0_0_0, '0']
- [blocks_stream_demux_0, '1', qtgui_time_sink_x_0_0_0_0, '0']
- [blocks_stream_demux_0, '2', qtgui_time_sink_x_0_0, '0']
- [blocks_throttle2_0, '0', blocks_stream_demux_0, '0']
- [blocks_vector_source_x_0, '0', blocks_throttle2_0, '0']
- [blocks_vector_source_x_0, '0', qtgui_time_sink_x_0, '0']
metadata:
  file_format: 1
  grc_version: 3.10.10.0