creating video file - visual-c++

How would I create an class that records the users interactions with the desktop. and it should convert it to a video format such as wmv file?

Cam Studio is open source and written in VC++. The source is not too bad either.
http://camstudio.org/

Windows Media Encoder has this ability (CodeProject article 4.66 rating)

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Getting mp3 from Azure Media Services

I'm using Azure Media Services and I need to encode input audio files to mp3 output files. I've used Standart Encoder for encoding video files, but it seems Standart Encoder can't produce mp3 (I understand that it can encode audio with AAC and produce mp4 file with the audio but unfortunately I need exactly mp3).
So I'm trying to use Media Encoder Premium Workflow. In the documentation, I see that I need to use Workflow Designer tool but can't understand where I can get it. Could you please point me out where I can find it? Or maybe you can suggest other solution for getting mp3 after processing audio using Azure Media Services?
I see that you have considered Azure Functions. Since that does not appear to address your needs, please contact us via mepd#microsoft.com
We'll provide you the instructions on how to download the Workflow Designer, and use it.

How to do Azure Video Watermarking / Overlay

Can anyone please guide me, step by step how to watermark/Overlay a video in Azure as I am new to Azure. If Possible please guide me with a tutorial or Video tutorial for the same. I have uploaded a .mp4 video in Azure and streamed it and able to view it in azure media player. Please guide me for watermarking or overlaying a video in azure.
Also I need to understand, azure is providing watermarking / overlay as a service so is there a way to do water marking directly with an Azure interface without visual studio C# coding.
Thanks in advance..
Do you need to overlay an image onto a video? Or do you want to overlay a video over another video? For the former case, the image will have to overlaid on the input video during the encoding process. There is a basic example documented here. In that example, the output contains a single MP4 at 640x360 resolution, which is sufficient for delivery via progressive download. Since you need to stream your video, you should update the Codecs section in that example with additional video bitrates - such as the one showed here.
You also mention needing to do this without writing code. If you have a PC, then you can install and run AMS Explorer (https://aka.ms/amse). Browse to the input video you want to process, hit "Ctl+R" and you will see tabs to specify the encoding settings, and others for advanced features including overlays.

xamarin forms streaming and recording audio

I have an app that I have written using Xamarin forms. I wanted to know if there is any media
class I could use to record audio as well as stream audio from a server. All articles I have found on the web are platform specific so far.
thanks in advance
There currently isn't any audio support in Xamarin.Forms. You will need to write platform specific code for handling the audio and use the XF DependencyService (or something similar) to call it from your shared code.

Windows Phone 8 - Streaming a Podcast MP3 file

I'm creating an app that reads a single podcast feed (unique to the app) and shows the episode titles in a LongListSelector. I can obtain the MP3 URI for each episode by parsing the RSS file. I'd like to add functionality that, when the user taps an item in the list, the URI is passed to an audio streamer and played like a music file.
I saw a tutorial on How to play background audio for Windows Phone, which points me to a project template for streaming audio.
I'm just wondering, is it still necessary to follow those steps and create a separate project, or is there a built-in API call in Windows Phone 8 that I can just pass my URI to and have it stream automatically?
Yes,if you need to use BackgroungAudioPlayer, it is necessary to create another project for AudioPlayer and add reference of it to your project.
Through MediaPlayer you can play files from medialibrary or IsolatedStorage.
So,for you it is necessary to follow those steps.Hope this helps.
Use the media element tag from the Windows Phone 8 Toolbox:
You should be able to achieve this without any difficulty, But it will not run in the background.

Convert a wma to wav programatically with Windows Media Encoder

Has anyone converted a WMA to a WAV using Windows Media Encoder? If so, do you have a short code snippet of how you did it? All samples I've seen have been for WAV to WMA, not the other way around.
The reason that all of the samples you've seen have been for WAV to WMA is that you're looking at Windows Media Encoder. You want to decode WMA to WAV. Look at the Windows Media Format SDK instead.

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