How to send images using "flutter_open_whatsapp" package? - flutter

I am building an app that has to be able to send text and images directly to a specific WhatsApp number using this package https://pub.dev/packages/flutter_open_whatsapp. But the plugin has not implemented for the multimedia data. What exactly am I supposed to do?

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How can I handle multiple formats in a video player used in my flutter application for android/ios?

The backend api sends a link url to the video that can be used in the video player's source. But the issue is, the source can vary from m4v, mp4 and other potential formats. I want to support the major formats, if not all, in the app.
Backend is in Django. I am open to modify the api code as well.
If the video formats need conversion, suggest the fastest way with an ETA for a ~100MB file.
Tried video_player plugin from pub.dev. At worse, I am thinking of integrating flutter_ffmpeg but I don't want users to wait and ruin their UX.

Convert speech to text in flutter for desktop(Windows) application

I am developing a cross platform application in flutter and cannot find any sources for converting speech to text in desktop(windows).
I tried using packages like speech_to_text
I even tried google_speech in which it require an audio file to transcribe it to text. But, I could not find any package for taking microphone input in windows so that I can pass it to an API and get the text.
Is there any possible solution for this?

How do I enable BPG decoding in ownCloud?

ownCloud does not display BPG images by default, offering to download them instead.
How do I add BPG support to ownCloud using the decoding JavaScript?
The slideshow component of the Files app is actually contained in a 3rd party app and it needs to support the format for you to be able to view those files.
Gallery has an issue to track the implementation of the format
https://github.com/owncloud/galleryplus/issues/185
You won't be able to see thumbnails in the Files app, but you'll be able to view those files when clicking on them.

Where to put server address where data will store?

I am creating an app that capture video and upload it to server i have create the code for capture video ,and for upload I am studying this code but I did not understand to where to put my server address to store data there.
And also is there posible to store video using FTP because in my company PHP and .NET guys use FTP and i want to know that i am able to upload video using FTP in my iPhone app.
In the WebService.m file, there's a placeholder that says "your URL string", replace that with your actual server.
If you want to use FTP, you can do that as well using a networking library that supports FTP, one in particular is the very popular libcURL library.

Customizable iOS Message Composer

I'm trying to replicate the iOS SMS Composer, but I need to change the data source for the contacts that are recognized and that are converted into the little blue things. They shouldn't be loaded from the phone's contacts, and I'm retrieving that data via JSON.
Are there any libraries out there that do this?
I don't think this is possible.
However, there is a library called Three20 which has a custom Message Composer (TTMessageController). That allows pointing the data source to a JSON data.
http://three20.info/