I need to programmatically capture video directly from a dvb-s/s2 (NOT DVB-T) pci card including accessing the card and recording the video into a file. I'm hoping to turn this into a command line program and .NET or Python would be preferable.
you can use nextpvr with it's http-based apis
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I'm looking for a way to capture pictures or video from my entry-level GoPro using the command line and with the camera connected via USB. There're lots tutorials of how to do it with the goPros that have Wi-Fi. Is there any way to do it like we do with webcams?
None of the GoPros support live streaming via USB. USB is primarily used for charging camera and access SD card. You simply cannot live stream from entry-level GoPro.
I am wanting to use a webcam to record video and have two options. First is using Flash/AS3 with Flash Media Server - I have this one done really and it works fine but I can't quite get the quality I'd like. Well, the Win8 camera app will record 1920x1080 video at 30fps with the same webcam. So, I was thinking I could use powershell to control the app - I'd need to send space to start/stop the recording, and be able to swap the camera application back and forth with another, gallery application, that shows the recordings.
I also need to be able to send the start/stop recording command on input from a tcp socket - which from reading seems to be doable.
So, is this something for powershell? I've been experimenting and can't reliably access the camera app. Maybe because it's a metro app? Thanks for any tips.
You can't really access or interact with Metro apps from PowerShell. There are a limited number of WinRT APIs that can be accessed from the desktop. The Windows.Media.Capture.MediaCapture type is accessible from the desktop. However using WinRT in PowerShell is really challenging given that there are a lot of async APIs in WinRT. Take a look at this blog post I wrote on what it takes to use WinRT APIs in PowerShell.
I am attempting to stream a video, in a format unity3d can access, like an mjpg. I have gone through several possible solutions, including gstreamer(only does client side as far as I could tell by the examples), yawcam(I couldn't find a way to access the image directly), and silverlight(due to simply not being able to find how the heck webcam streaming was doable) I am currently just looking for any more methods of getting video over from one side to the other. Could I possibly simply read the images into a byte array and send it over a socket? Maybe I missed something in the previous three possible solutions?
If you are looking to stream video from a server than you can use Ogg encoding + WWW.movie to map it to a texture. Assuming you have a Pro license, as I think this is a Pro only feature. If this is a local file, either bundled with the app or in external folder, we use the brilliant AVPro Windows Media or AVPro QuickTime. MJPEG does offers super smooth scrubbing with AVPro but generates enormous files. Definitely not ideal for streaming or even download!
Finally RenderHead also has a Live Camera capture plugin that could meet your needs.
I am creating application which is having functionality like 1 person can view video live from another iPhone, i.e. one iphone is recording and and another is viewing the same, as we do with FACE TIME, but this things to be performed by our own server.
I come to know to USE XMPP client, and also we can use google Api , but how to use and what else things are required to create such kind of application ?
Also shall we need to create own server side part or we can hire other servers , like google/gtalk or any other which is already ready.
please guide me what other things are required for the same.
thanks.
I believe that for connecting 2 devices together GStreamer is one of the best choices: it's broadly used and there's a lot of materials/docs on it.
GStreamer has a pipeline architecture that inspired by DirectShow and Quicktime, and it provides a command-line tool named gst-launch that allows you to create a pipeline and quickly test several components of the library together.
This message, shares some interesting info on how to stream video directly from the iPhone camera using gst-launch, while receiving the data on a PC through VLC. Which means, 50% of what you are looking for is already done.
Another option, also demonstrated in that message, is to use FFmpeg.
I'd like to advocate ffmpeg, which has been successfully migrated onto iOS.
What you need to do is:
1. rewrite ffserver, use camera input as the video source, and encode it by H.264/MPEG-4 encoder
2. rewrite ffplay, so that it can display video on iOS devices. The network protocol and video decoder part are ready.
I have a http streaming link which gives me .flv streaming feed. I want to convert that and access in my iPhone program. How can i do that? I want to have a desktop software like VLC and input this streaming feed URL and convert to iPhone supported and stream again to iPhone. I tried VLC with H.264 and Mpeg-1 audio, but seems to be it doesn't give the supported format, so as iPhone program doesn't play the video.
Could someone please guide me how can i setup a desktop software which can stream iPhone supported file?
Thanks in advance.
I think even the great VLC can't convert FLV on the fly...(or even do anything with FLV). As far as streaming goes, you'll probably be limited to the local network (Wi-Fi). I'd start with the simple way—create an ad-hoc file server on the desktop, then use AVPlayer's initWithURL method to find that video.
On the desktop, you could query the IP address of the computer, and ask the user to enter that URL (along with an optional port assignment and file component, like http://192.168.0.2:2234/streamingVideo.mp4) onto the iDevice, then convert to NSURL.
What exactly is the http streaming link? This matters a lot as in order to stream to the iPhone you need to use HTTP Live Streaming which requires some different bits than a typical flash media, or more properly RTMP, server. Typically you need two different streaming architectures or some expensive boxes.