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Message API reference
The message API allows any object within pulseaudio to register a message
handler. A message handler is a function that can be called by clients using
PA_COMMAND_SEND_OBJECT_MESSAGE. A message consists at least of an object path
and a message command, both specified as strings. Additional parameters can
be specified using a single string in JSON format, but are not mandatory.
The message handler returns an error number as defined in def.h and also returns
a string in the "response" variable. Non-empty response will be in JSON format.
The reference further down lists available messages, their parameters
and return values.
Reference:
Object path: /core
Message: list-handlers
Parameters: None
Return value: JSON array of handler description objects
[{"name":"Handler name","description":"Description"} ...]
Object path: /card/bluez_card.XX_XX_XX_XX_XX_XX/bluez
Message: list-codecs
Parameters: None
Return value: JSON array of codec description objects
[{"name":"codec1","description":"Codec 1"} ...]
Object path: /card/bluez_card.XX_XX_XX_XX_XX_XX/bluez
Message: get-codec
Parameters: None
Return value: "codec name"
Object path: /card/bluez_card.XX_XX_XX_XX_XX_XX/bluez
Message: switch-codec
Parameters: "codec name"
Return value: none
Description: Set if card profile selection should be sticky instead of being automated
Object path: /card/<card_name>
Message: set-profile-sticky
Parameters: JSON "true" or "false"
Return value: none
Description: Get if card profile selection should be sticky instead of being automated
Object path: /card/<card_name>
Message: get-profile-sticky
Parameters: None
Return value: JSON "true" or "false"
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