Hi all dear developers.
I need show live video and audio streaming in a web page developed by asp.net language.
Could anybody help me on this situation:
I want to know if there is an efficient and general and easy way.
I searched for hours about it: one solution is use "Wawza media server" which is too expensive for our project. (By wawza we can change RTSP to RTMP and then give it to jw player.)
I want a free way!
Please help me on this.
thanks for your attention
Well this change up to your stream! is it RTP? RTSP? wowza is the best at right now, what about Adobe's solutions? or you have to create your own which is harder one.
a) Adobe's Streaming Server
b) Adobe's RTMP Protocol
c) Adobe's Flash Player
d) F4v/Flv video format
These above software's are designed specifically for web applications to provide end user seamless, secured, uninterrupted, high quality video.
If you want some hands on then you can try Red5 (Open Source Flash Server written in Java) or rtpmd (C++ RTPM server)
You can use IIS Media Services (http://www.iis.net/media) and Smooth Streaming Client (http://www.iis.net/download/SmoothClient) to stream live video.
Related
I want to make an application where I could contact the server (computer hosting a mp4 video file) and then it would stream and play the video. The streaming and video playing would take place in the same application.
I have no idea where to begin. What technologies would I need to know to start implementing this? Any sort of direction would be useful.
I found this blog article which seems like it's what you're looking for. In his example, he streams the video from his local computer but streaming from a server should be along the same lines.
I have a video server with an IP:192.168.1.XX
It has 3 possible formats JPEG, MPEG-4 or H.264
The video server is broadcasting a video(with audio) on real time
I have no problems streaming the video with AFORGE lib
but i also need to stream the audio
the video server has several protocols: HTTP,RTSP,RTP,RTCP
according to the user's manual RTSP is the protocol I should use to get MPEG-4(Audio and video), but I haven't found anything to stream by RTSP on C# so I'm trying to stream audio and video separate
the ports are:
RTSP: 554
RTP(Video): 5556
RTP(Audio):5558
RTCP(Video): 5557
RTCP(Audio): 5559
Does any body know how RTP works or how can I get the sound from the video server?
I would learn gstreamer. I am assuming that you are using windows since you are doing this in C#. It has a fairly stable windows port with a nice .net wrapper. If you aren't using Windows, then gstreamer is most certainly your best bet.
In gstreamer you would most likely use a pipeline like:
your video src -> x264enc or ffenc_mpv4 -> rtph264pay or rtpmp4vpay -> udpsink
your audio src -> ffenc_aac or preferably a lower latency codec like mULaw -> rtppay -> udpsink
and so on. It is very easy to use. They even have a nice rtpbin for your to use if you want to actually manage an rtp session.
More information can be found here:
http://gstreamer.freedesktop.org/
Here is a nice sample of how to do rtp:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-good-plugins/html/gst-plugins-good-plugins-gstrtpbin.html
I have done this sort of thing with the direct show filters but it is much more involved. You usually have to manually handle the rtp payloading and the transport--not to mention deal with COM--whereas GStreamer provides those mechanisms for you out of the box.
You can use https://net7mma.codeplex.com/
It is a C# Media Server and it will get you each RtpPacket and from there you can get them to a Decoder of your choice among other things all without bogging down the source stream.
I'm starting a new project to play the video on my LAN, actually if I enter an IP on my browser I got a m3u file with the following info:
http://192.168.1.101:31344
So, if I open that file Im able to see the video using VLC Media Player. However in the school, I proposed to implement my own video player. I know there are some options, like DirectX, Silverlight, etc.. so I'm looking for recommendations on which technology use so any advice is welcome.
I don't have any restriction, the only one is to use C# on VS 2010 Professional.
Thanks,
m0dest0.
Well, I've used Silverlight with an embedded MediaElement and just set the source to the address of the video file. It was simple to use. I wouldn't call it "writing your own video player", but it should do.
There's plenty of examples in the link I gave you.
We are trying to find out any technologies/libraries available in .NET stack (even wrappers on top of 3rd party dlls) that'll help us to build an app that can
1 - Capture an image from a user's video device
2 - Upload it realtime to a server
3 - Process the video (in the server) - eg: Adding a watermark to the video
4 - Stream it back to the user/other users
Preferably, the time delay/latency between step2 and 4 should be minimal
The first requirement (capturing) seems pretty straight forward. The challenge is identifying a suitable way to do the upload, do the processing, and stream it back. Any valid suggestions or ideas?
Recently came acrsoss FFmpeg library, and it has a C# wrapper. Does FFmpeg can be used to do the processing side?
I would go about it this way:
Use silverlight or flash to capture the video camera input, e.g. as detailed here.
You can send the byte-stream over a socket that your server is listening to.
On the receiving end, just use the socket-accepting program as a router-program with a number of listening workers connected. Between workers and router-program, e.g. AMQP with RabbitMQ. Send asynchronous messages (e.g. with reactive extensions) with e.g. the stream encoding to the rabbit-node, which then can either further all messages to one single computer as a part of a conversation/user-session, or interleave between the available workers. Here's the manual. As the video is encoded, it is streamed asynchronously over the message bus back. According to intel tests the bus itself should work well at high throughputs, but they had to use the interleaved tcp channel mode (they tested on a gigabit lan). Other users here have suggested FFlib. You might also look into having the workers convert into webM, but if FFlib works, that might be a lot easier. Each worker publishes over AMQP the next encoded video piece. A server-running program, e.g. the router program I talked about before, starts sending to the client (see no. 4)
Have a client-program, e.g. silverlight/flash connect (for example over the same socket that you opened for client->server data, or over HTTP), and read the byte-stream with a decoder. Render the output.
VideoLab from Mitov can accomplish all of this and is free for personal use (not so free for commercial use, but pricing is not too heavy).
I have bought and use the Delphi version and know it works extremely well, so I'm pretty sure the .NET version will do what you need.
This kind of task is not trivial (as seen by the lack of responses here), so expect to struggle considerably with DirectX/Microsoft Media Encoder- but with this toolkit and some help from the author, you will eventually succeed.
http://www.mitov.com/html/videolab.html
It seems that Splicer can process static video and convert it - I'm not sure about processing a realtime uploaded video - http://splicer.codeplex.com/
Take a look at Video.Show by Vertigo. It's an open source website for user-generated video content. It uses the Expression Encoder to handle compression/video editing. It's not exactly what you need, but it's a good start!
You could use Silverlight for capture as is mentioned above, and then use Expression Encoder to push it to a stream server or stream from there directly.
It should have everything you need:
Smart encoding/smart recompression for
WMV if the source is also WMV and no
frame operations are performed [4],
cuts editing, serial batch encoding,
Live encoding from webcams and DV
camcorders
Decoding/import format support because
of DirectShow
Smooth streaming (720p+ video using
HTTP) with optimized client
(Silverlight) and server (IIS with
smooth streaming)
WebDAV publishing, publishing plugins
for Silverlight Streaming, Amazon S3
Importing XAML overlays created in
Expression Design and customizing
their timing, animation, opacity,
placement and looping
JavaScript trigger events
Windows Media 11 SDK and VC-1 SDK
integration, native MPEG-2 decoder
Adding captions to videos using SAMI
or W3C Timed Text format
Previewing and comparing encoding
settings in real time
Screen capture
Object model for the encoding engine,
SDK downloadable separately
The question is kind of short on details (is this a web server, what os is the server? etc) but I'll take a stab based on what I think you're trying to do.
One thing you might consider is doing the capture and process at one time. If the user is running your client app, have that do the capture and processing via DirectShow. Then all you need to do is upload the video and you can skip the entire server process. This is assuming that the 'user' is under your control - that this is not some random person out there uploading video, but an employee or someone otherwise trusted.
If this isnt the case, then ffmpeg can certainly be used to watermark video on your server. You dont really need 'wrappers' for it. You can just call it as a command line app from your server application and wait for it to finish.
The process really isnt that complex... its the details that are going to matter (for example - what does 'stream' mean to you? Do you really mean 'stream', or is this via http? Thats a huge topic right there)
I've written a basic SL4 application to capture audio data from the microphone using CaptureSource. The trouble is, it's raw PCM output - which means huge and uncompressed.
Given that I need this application to run purely within a SL4 environment, how can I compress the PCM audio data into something that can be delivered to a remote server more easily?
Essentially I need a solution that I can also deploy/include in a Windows Phone Series 7 application as well as one that will work in the browser environment - so managed code solutions only, I think?
In conversation, people have suggested Speex and WMA for instance, but I haven't found any libraries or examples that work without requiring reference to DLL's that won't work in a SL4 project.
Just a small addition to Jason's post:
There is another port of Speex to .Net and Silverlight 4 called NSpeex.
Please see the WavFileHelper class in Silverlight 4 Rough Notes: Camera and Microphone Support on Mike Taulty's blog (a bit lower than the middle of the page, but the full article is worthwhile) in which he compresses the PCM file to WAV.
Here's another example of when writing to WAV you can change values such as Mono/Stereo, which will directly change the size of the WAV file: Audio recorder Silverlight 4 sample. And one more that gives more details about writing to WAV: Creating Sound using MediaStreamSource in Silverlight 3 Beta
Take a look at this. It looks like he has ported the Speex encoder to C# for the exact problem you are trying to solve. It is available here. Speex is designed for speech and should perform better than wma, mp3, or other audio codecs that are designed to handle music if you are just encoding speech, which I assume since you are grabbing from the mic.
This article http://alvas.net/alvas.audio,articles.aspx#how-to-save-audio-to-mp3-on-silverlight about save audio on client. To send audio data to a server you can use WebClient, for example.
You can do encoding thru the server, by send all stream to WCF service and do your encoding thru Microsoft Expression Encoding SDK API.
Please, see this url that i have asked before:
http://forums.silverlight.net/forums/t/181141.aspx
Regards