Pantelis Antoniou
7ead270265
Implement JSON/YAML command for graph tree traversal
...
Implement a single command that allows viewing all information
about a remotes properties/parameters and info variables.
This patch creates a framework for accessing properties using
a simple dotted variable access method or JSON/YAML path expressions.
The root of the tree is a sequence of all globals objects, and
accessing a the first one is simply 0 (or /0 is JSON/YAML path form).
pipewire-0>>graph 0
id: 0
type: PipeWire:Interface:Core
permissions: rwx
version: 3
info:
id: 0
cookie: 1602594817
user_name: panto
host_name: nuc2
version: 0.2.96
name: pipewire-0
change_mask: props
props:
pipewire.core.name: pipewire-0
context.profile.modules: none
pipewire.core.daemon: 1
link.max-buffers: 16
default.clock.rate: 48000
default.clock.quantum: 1024
default.clock.min-quantum: 32
default.clock.max-quantum: 8192
default.video.width: 640
default.video.height: 480
default.video.rate.num: 25
default.video.rate.denom: 1
mem.allow-mlock: true
cpu.max-align: 32
object.id: 0
properties:
pipewire.core.name: pipewire-0
Displaying a nodes information is simply:
pipewire-0>>graph /32
id: 32
type: PipeWire:Interface:Node
permissions: rwx
version: 3
info:
id: 32
max_input_ports: 128
max_output_ports: 0
n_input_ports: 2
n_output_ports: 2
state: suspended
error:
change_mask: "n_input_ports,n_output_ports,state,props,params"
props:
object.path: alsa:pcm:HDMI:3:playback
api.alsa.path: "hw:0,3"
api.alsa.pcm.card: 0
api.alsa.pcm.device: 3
api.alsa.pcm.subdevice: 0
api.alsa.pcm.stream: playback
api.alsa.pcm.id: "HDMI 0"
api.alsa.pcm.name: "HDMI 0"
api.alsa.pcm.subname: "subdevice #0 "
api.alsa.pcm.class: generic
api.alsa.pcm.subclass: generic-mix
api.alsa.pcm.sync-id: 00000000:00000000:00000000:00000000
device.id: 26
factory.name: api.alsa.pcm.sink
priority.master: 696
priority.session: 696
media.class: Audio/Sink
node.name: alsa_card.pci-0000:00:03.0.playback.3.0
node.description: "Built-in Audio (HDMI 0)"
factory.id: 17
client.id: 24
device.api: alsa
node.driver: true
factory.mode: merge
audio.adapt.slave:
library.name: audioconvert/libspa-audioconvert
object.id: 32
params:
EnumFormat:
mediaType: audio
mediaSubtype: raw
format:
default: S32LE
alt0: S32LE
alt1: S16LE
rate:
default: 48000
min: 32000
max: 48000
channels: 2
position:
- FL
- FR
PropInfo:
- id: volume
name: Volume
type:
default: 1.000000
min: 0.000000
max: 10.000000
- id: mute
name: Mute
type:
default: false
alt0: false
alt1: true
- id: channelVolumes
name: "Channel Volumes"
type:
default: 1.000000
min: 0.000000
max: 10.000000
Props:
volume: 1.000000
mute: false
channelVolumes: []
Format: {}
EnumPortConfig:
- direction: Input
mode: dsp
- direction: Output
mode: dsp
- direction: Input
mode: convert
- direction: Output
mode: convert
PortConfig: {}
properties:
object.path: alsa:pcm:HDMI:3:playback
factory.id: 17
client.id: 24
device.id: 26
priority.session: 696
priority.master: 696
node.description: "Built-in Audio (HDMI 0)"
node.name: alsa_card.pci-0000:00:03.0.playback.3.0
media.class: Audio/Sink
To simply display the parameters of the same object:
pipewire-0>>graph 32/info/params
EnumFormat:
mediaType: audio
mediaSubtype: raw
format:
default: S32LE
alt0: S32LE
alt1: S16LE
rate:
default: 48000
min: 32000
max: 48000
channels: 2
position:
- FL
- FR
PropInfo:
- id: volume
name: Volume
type:
default: 1.000000
min: 0.000000
max: 10.000000
- id: mute
name: Mute
type:
default: false
alt0: false
alt1: true
- id: channelVolumes
name: "Channel Volumes"
type:
default: 1.000000
min: 0.000000
max: 10.000000
Props:
volume: 1.000000
mute: false
channelVolumes: []
Format: {}
EnumPortConfig:
- direction: Input
mode: dsp
- direction: Output
mode: dsp
- direction: Input
mode: convert
- direction: Output
mode: convert
PortConfig: {}
The graph command also supports the following options:
-y Select YAML format (this is the default)
-j Select JSON format
-n Display numeric instead of textual IDs
-f Display full type info, i.e. instead of EnumFormat will
display Spa:Enum:ParamId:EnumFormat
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
2020-02-21 11:30:49 +01:00
Pantelis Antoniou
e258382bec
pipewire-cli: Introduce an improved object dump method
...
The dump method can dump objects in a manner that is easy
for humans to parse and understand.
For instance a simple command (on a vanilla NUC2):
pipewire-0>>dump -sd Device
23: c="Audio/Device" n="alsa_card.pci-0000:00:03.0" d="Built-in Audio" a="alsa:pcm" p="hw:0" id="HDMI"
nodes:
24: s="suspended" i=2/128 n="api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 0" p="alsa:pcm:hw:0,3:playback"
ports:
31: d="input" n="playback_FL" f="32 bit float mono audio"
32: d="input" n="playback_FR" f="32 bit float mono audio"
25: s="suspended" i=2/128 n="api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 1" p="alsa:pcm:hw:0,7:playback"
ports:
33: d="input" n="playback_FL" f="32 bit float mono audio"
34: d="input" n="playback_FR" f="32 bit float mono audio"
26: s="suspended" i=2/128 n="api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 2" p="alsa:pcm:hw:0,8:playback"
ports:
35: d="input" n="playback_FL" f="32 bit float mono audio"
36: d="input" n="playback_FR" f="32 bit float mono audio"
27: s="suspended" i=2/128 n="api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 3" p="alsa:pcm:hw:0,9:playback"
ports:
37: d="input" n="playback_FL" f="32 bit float mono audio"
38: d="input" n="playback_FR" f="32 bit float mono audio"
43: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 0/Multimedia" p="alsa:pcm:hw:0,3:playback:Multimedia"
ports:
44: d="input" n="in_FL" f="32 bit float mono audio"
45: d="output" n="out_FL" f="32 bit float mono audio"
106: d="output" n="out_FR" f="32 bit float mono audio"
107: d="input" n="in_FR" f="32 bit float mono audio"
46: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 0/Navigation" p="alsa:pcm:hw:0,3:playback:Navigation"
ports:
47: d="input" n="in_FL" f="32 bit float mono audio"
48: d="output" n="out_FL" f="32 bit float mono audio"
108: d="output" n="out_FR" f="32 bit float mono audio"
109: d="input" n="in_FR" f="32 bit float mono audio"
49: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 0/Communication" p="alsa:pcm:hw:0,3:playback:Communication"
ports:
50: d="input" n="in_FL" f="32 bit float mono audio"
51: d="output" n="out_FL" f="32 bit float mono audio"
110: d="output" n="out_FR" f="32 bit float mono audio"
111: d="input" n="in_FR" f="32 bit float mono audio"
52: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 0/Emergency" p="alsa:pcm:hw:0,3:playback:Emergency"
ports:
53: d="input" n="in_FL" f="32 bit float mono audio"
54: d="output" n="out_FL" f="32 bit float mono audio"
112: d="output" n="out_FR" f="32 bit float mono audio"
113: d="input" n="in_FR" f="32 bit float mono audio"
55: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 1/Multimedia" p="alsa:pcm:hw:0,7:playback:Multimedia"
ports:
56: d="input" n="in_FL" f="32 bit float mono audio"
57: d="output" n="out_FL" f="32 bit float mono audio"
114: d="output" n="out_FR" f="32 bit float mono audio"
115: d="input" n="in_FR" f="32 bit float mono audio"
58: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 1/Navigation" p="alsa:pcm:hw:0,7:playback:Navigation"
ports:
59: d="input" n="in_FL" f="32 bit float mono audio"
60: d="output" n="out_FL" f="32 bit float mono audio"
116: d="output" n="out_FR" f="32 bit float mono audio"
117: d="input" n="in_FR" f="32 bit float mono audio"
61: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 1/Communication" p="alsa:pcm:hw:0,7:playback:Communication"
ports:
62: d="input" n="in_FL" f="32 bit float mono audio"
63: d="output" n="out_FL" f="32 bit float mono audio"
118: d="output" n="out_FR" f="32 bit float mono audio"
119: d="input" n="in_FR" f="32 bit float mono audio"
64: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 1/Emergency" p="alsa:pcm:hw:0,7:playback:Emergency"
ports:
65: d="input" n="in_FL" f="32 bit float mono audio"
66: d="output" n="out_FL" f="32 bit float mono audio"
120: d="output" n="out_FR" f="32 bit float mono audio"
121: d="input" n="in_FR" f="32 bit float mono audio"
67: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 2/Multimedia" p="alsa:pcm:hw:0,8:playback:Multimedia"
ports:
68: d="input" n="in_FL" f="32 bit float mono audio"
69: d="output" n="out_FL" f="32 bit float mono audio"
122: d="output" n="out_FR" f="32 bit float mono audio"
123: d="input" n="in_FR" f="32 bit float mono audio"
70: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 2/Navigation" p="alsa:pcm:hw:0,8:playback:Navigation"
ports:
71: d="input" n="in_FL" f="32 bit float mono audio"
72: d="output" n="out_FL" f="32 bit float mono audio"
124: d="output" n="out_FR" f="32 bit float mono audio"
125: d="input" n="in_FR" f="32 bit float mono audio"
73: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 2/Communication" p="alsa:pcm:hw:0,8:playback:Communication"
ports:
74: d="input" n="in_FL" f="32 bit float mono audio"
75: d="output" n="out_FL" f="32 bit float mono audio"
126: d="output" n="out_FR" f="32 bit float mono audio"
127: d="input" n="in_FR" f="32 bit float mono audio"
76: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 2/Emergency" p="alsa:pcm:hw:0,8:playback:Emergency"
ports:
77: d="input" n="in_FL" f="32 bit float mono audio"
78: d="output" n="out_FL" f="32 bit float mono audio"
128: d="output" n="out_FR" f="32 bit float mono audio"
129: d="input" n="in_FR" f="32 bit float mono audio"
79: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 3/Multimedia" p="alsa:pcm:hw:0,9:playback:Multimedia"
ports:
80: d="input" n="in_FL" f="32 bit float mono audio"
81: d="output" n="out_FL" f="32 bit float mono audio"
130: d="output" n="out_FR" f="32 bit float mono audio"
131: d="input" n="in_FR" f="32 bit float mono audio"
82: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 3/Navigation" p="alsa:pcm:hw:0,9:playback:Navigation"
ports:
83: d="input" n="in_FL" f="32 bit float mono audio"
84: d="output" n="out_FL" f="32 bit float mono audio"
132: d="output" n="out_FR" f="32 bit float mono audio"
133: d="input" n="in_FR" f="32 bit float mono audio"
85: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 3/Communication" p="alsa:pcm:hw:0,9:playback:Communication"
ports:
86: d="input" n="in_FL" f="32 bit float mono audio"
87: d="output" n="out_FL" f="32 bit float mono audio"
134: d="output" n="out_FR" f="32 bit float mono audio"
135: d="input" n="in_FR" f="32 bit float mono audio"
88: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:03.0/HDMI 3/Emergency" p="alsa:pcm:hw:0,9:playback:Emergency"
ports:
89: d="input" n="in_FL" f="32 bit float mono audio"
90: d="output" n="out_FL" f="32 bit float mono audio"
136: d="output" n="out_FR" f="32 bit float mono audio"
137: d="input" n="in_FR" f="32 bit float mono audio"
28: c="Audio/Device" n="alsa_card.pci-0000:00:1b.0" d="Built-in Audio" a="alsa:pcm" p="hw:1" id="PCH"
nodes:
29: s="running" i=2/128 n="api.alsa.pcm.sink/alsa_card.pci-0000:00:1b.0/ALC283 Analog" p="alsa:pcm:hw:1,0:playback"
ports:
39: d="input" n="playback_FL" f="32 bit float mono audio"
40: d="input" n="playback_FR" f="32 bit float mono audio"
30: s="suspended" o=2/128 n="api.alsa.pcm.source/alsa_card.pci-0000:00:1b.0/ALC283 Analog" p="alsa:pcm:hw:1,0:capture"
ports:
41: d="output" n="capture_FL" f="32 bit float mono audio"
42: d="output" n="capture_FR" f="32 bit float mono audio"
91: s="running" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:1b.0/ALC283 Analog/Multimedia" p="alsa:pcm:hw:1,0:playback:Multimedia"
ports:
92: d="input" n="in_FL" f="32 bit float mono audio"
93: d="output" n="out_FL" f="32 bit float mono audio"
138: d="output" n="out_FR" f="32 bit float mono audio"
139: d="input" n="in_FR" f="32 bit float mono audio"
94: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:1b.0/ALC283 Analog/Navigation" p="alsa:pcm:hw:1,0:playback:Navigation"
ports:
95: d="input" n="in_FL" f="32 bit float mono audio"
96: d="output" n="out_FL" f="32 bit float mono audio"
140: d="output" n="out_FR" f="32 bit float mono audio"
141: d="input" n="in_FR" f="32 bit float mono audio"
97: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:1b.0/ALC283 Analog/Communication" p="alsa:pcm:hw:1,0:playback:Communication"
ports:
98: d="input" n="in_FL" f="32 bit float mono audio"
99: d="output" n="out_FL" f="32 bit float mono audio"
142: d="output" n="out_FR" f="32 bit float mono audio"
143: d="input" n="in_FR" f="32 bit float mono audio"
100: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.sink/alsa_card.pci-0000:00:1b.0/ALC283 Analog/Emergency" p="alsa:pcm:hw:1,0:playback:Emergency"
ports:
101: d="input" n="in_FL" f="32 bit float mono audio"
102: d="output" n="out_FL" f="32 bit float mono audio"
144: d="output" n="out_FR" f="32 bit float mono audio"
145: d="input" n="in_FR" f="32 bit float mono audio"
103: s="suspended" i=2/128 o=2/128 n="audio.convert/api.alsa.pcm.source/alsa_card.pci-0000:00:1b.0/ALC283 Analog/Capture" p="alsa:pcm:hw:1,0:capture:Capture"
ports:
104: d="input" n="in_FL" f="32 bit float mono audio"
105: d="output" n="out_FL" f="32 bit float mono audio"
146: d="input" n="in_FR" f="32 bit float mono audio"
147: d="output" n="out_FR" f="32 bit float mono audio"
Will dump the devices, while following to dump nodes and ports
of the nodes.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
2020-01-28 12:45:24 +01:00