Marmalade can be used to make Roku apps in C++. From their website, they seem to encourage game dev in Roku. If I want to make a normal TV channel app in Roku with some graphics, how feasible will it be to make the app using Marmalade?
App development is possible, though Marmalade is very game tailored.
However, can't make a TV channel, since in Marmalade there is no video streaming API (i.e. cannot play network stream). Moreover, the UI will be a pain - you'll have to create your own widgets (buttons, windows, menu/lists).
The cheapest Marmalade licence that includes Roku will cost you $500/yr.
Related
I am working on an AWS cloud project which involves video streaming. For this case, a media player needs be to used is Exoplayer along with required AWS services but I am not able to find anything regarding Exoplayer's use on Websites. Can anyone help me with the usage of Exoplayer for web applications?
ExoPlayer is an Android player - for websites, you would typically use a HTML5/JavaScript player assuming your service is using a typical video streaming technology such as HLS or DASH.
OpenSource HTML5/JavaScript players are readily available:
https://github.com/videojs/video.js
https://github.com/shaka-project/shaka-player
There are also multiple commercial players also like BitMovin, TheoPlayer, JWPlayer etc.
I would like a service to access the microphone (and do some signal processing on it a bit like what the google music is doing to recognise songs)
Is there a public API for that ? can't seem to find it :/
Have you tried the AudioRecord class in Android? That should do everything you need. You might also find the waveform sample on the Google Glass GitHub page to be a useful example.
Keep in mind that recording audio from a service (as in a background service) might be dangerous since other applications could need the microphone for voice recognition and so forth. Using an immersion for this might be a better approach.
I'm looking to stream video's as part of a django app, but I've never done anything with video and don't really know where to start. I don't have all the details of the project yet, but I'm expecting a fairly small library of videos uploaded by one or two people (Think less than 100 videos of about 5 mins length).
I'm looking for a solution that allows users to upload videos using django admin. I want to reach the majority of desktop browsers (95%+), and obviously I want to keep my costs down. Saying that I do like the idea of using some sort of cloud based CDN (I've no idea if that's possible / appropriate for this size of project)
I really want to ask if anyone can point me int he right direction (tutorials / services / projects / code), but I realise that might not be specific enough.
So to be more specific -
Is it possible to stream video to browsers using just django and an apache web server?
What cloud hosting providers will support easy integration with a django app?
Will I need to convert the format of my video's before they're ready to stream?
Can I use Red5 with a cloud hosting solution.
I want to host the project on a Ubuntu server that I use to host a
couple of other (low traffic) django apps - would it be a mistake to install Red5
on a server with existing sites.
From recollection, the server has 12GB RAM and 4 cores (in a 1and1
uk datacentre). Will I have enough power / bandwidth to stream say 3-5 video's simultaneously? (assuming red5 / wowza).
I'm not interested in Flash because I was rooting for Apple. Do I
need to need to re-evaluate my prejudices to be free of my ignorance?
I never streamed videos using Django/Python, but I have some experience in the field of streaming video in frontend apps. I can certainly not answer all your questions. In my experience it does not really matter where the video is hosted, a CDN is fine if you want to distribute the video world-wide.
I personally think you should start with the question on how you want to play the video in the browser. Choose an appropriate video player (could be html5 video) and you have an idea of what is possible to play and what not.
3) The format matters depending on how you want to stream the video. Progressive download (e.g. mp4)? Live streaming (unprogressive, e.g. HLS)? You can find example videos online and test if your video player can play the videos on the platform you want to support.
7) As said, you need to check out which player to use in this case. HTML5 video is not widely supported enough yet in my opinion, but can play most formats in the most modern browsers (Chrome, Safari).
Hope that helps.
I am exploring using Google Earth within a C++ application I am writing for Linux. This application would be operating at a very high resolution (approx. 6000 x 3000 pixels). I am confident about the graphics performance of Google Earth in the high resolution and the Linux environment. My question is: What is the best way to integrate Google Earth into my Linux C++ application? I have read about the Google Earth COM API (and that it's outdated now). What would be the preferred method to integrate Google Earth into my application?
Specifics for integration: I am hoping to have the Google Earth in the "background" covering the entire 6000 x 3000 resolution with a small "control box" overlay that will interact with the earth.
Thanks for your responses!
kf
As far as I can tell there are only two APIs to access Google Earth content - the Javascript API, and the Windows based C# API (which seem to just be wrapper classes that call the Javascript API.) I don't know but I believe the Google Maps API to also be in Javascript.
Given that you are in Linux and using C++ my suggestion would be to embed a browser in your app and create C++ wrappers to make the Javascript calls that you need (like the Windows C# API.)
If you start an open source project other people may be willing to help you create C++ wrappers.
As far as I know you can't use a Google Earth Api in Linux. The only API Google Earth offers is the Javascript API (only works in MacOs or Windows, but no Linux) and COM API (seems death now)
It doesn't work even in ChromeOS
I try to create a django app that uses webcam. I would like people to be able to broadcast with their webcam, while other people can watch and listen to them.
I don't know how to do that with Django. Do I have to use flash? Is there a module that would allow me to do that?
Any advice is really welcome. Thank you.
Django can display the page containing the webcam application (and display, for instance, a directory of ongoing broadcasts, a search mechanism, separate urls for separate broadcasts, user authentication, etc.), but the actual software that takes the video from the webcam and streams it is not technically part of Django.
Flash can handle webcam streaming, and is probably the easiest tool to use because of the quality and user-friendliness of the dev tools, but the use of Flash for new projects is strongly discouraged since the vendor (Adobe) is attempting to migrate users away from it. HTML 5 is at least theoretically the correct tool for this task, although it may be challenging to develop in because Flash is, despite being a 'dead' project, still much more frequently used. There are also other browser plugins such as Silverlight, although I don't believe they have much to recommend them over Flash and HTML 5 for most applications.
All of the above are only a solution for the client side of the equation -- you'll need some kind of server software to accept the streaming video content and stream it out to viewers. This is a fairly complex task, and is generally outside of the purview of Django (which is not to say that it's strictly impossible to bolt that functionality on to Django in some sense, but you won't be using any of the standard Django modules for it).