ESPNOW File with metawrite

[aqildad-create]

how to use metawrite if we are sending file to espnow ? I want to send some other information with file .
.
.

ESPNowStream now;
File audioFile;
StreamCopy copier(now, audioFile);

[pschatzmann]

Just look at the class documentation, there is a method to write metadata and a callback method to receive

[aqildad-create]

I am in binarycontainer were their is function of write meta but I am confuse how can use it with file

[pschatzmann]

What you mean with "use it in file" ? You can put any information there as you want to make available to the receiver: You could put it into a comma delimited string, or a C structure...
It is up to use what and how you want to represent the data. Just cast the data to a const uint_t* and provide the length of the data that you provided

[aqildad-create]

use it in file means i am sending 2 type of data to espnow
1: encoded data
2: data from file (wave and mp3 ) ---this is with file

and i need to add small amount of other data with it and at receiver end i will use t .

and i agree with you and want to implement this but which class documentation you are referring to ?

i cant able to find the class and further cant find any example related to this .

[pschatzmann]

I don't understand: just above you pasted the class documentation from the BinaryContainerEncoder!
What is so difficult just to call e.g to call writeMeta("wav",3) ?

Feel free to extend the examples and provide a pull request

[aqildad-create]

BinaryContainerEncoder rr;
EncodedAudioStream encoder( &now, new SBCEncoder() );
.
uint8_t myBufferbuffer[300];
rr.writeMeta(myBufferbuffer, 10) ;

now how to pas it to espnow ?

[pschatzmann]

It I remember right I have sent you this example already twice or three times: https://www.pschatzmann.ch/home/2023/04/28/arduino-audio-tools-codecs-and-containers/

[aqildad-create]

yes i agree , you have send this example to me and also i studied this but i cant succeed to write meta in this example .

If you guide and provide extended version of this example i will really help full .

also i want to use this extended functionality but have no success . please help

[aqildad-create]

I try multiple attempts but still no success . help and your attention is needed .

[aqildad-create]

*You can write you own additional (meta) data in the encoder with writeMeta(const uint8_t data, size_t len) and retrieve it in the decoder with a callback method.

From above i personally conclude write meta to encoder so i try below but no success still

encoder.writeMeta(myBufferbuffer, 10) ;