I'm currently exploring some features in JWPlayer that can help me achieve my aim that is video quality auto adjustment based on bandwith, usually called adaptive streaming. I have seen JWPlayer Javascript API from official JWPlayer website feature that I think can provide this to me. It is getQualityLevels(), but there is no documentation there, so I cannot start doing what I want.
Meanwhile I read from JWPlayer website in Streaming section, that I can use dynamic RTMP to get adaptive streaming. But it needs RTMP server and I think RTMP has lots of feature that I won't need because I just need adaptive streaming.
My question is
Is there any sample code that you can provide me to help me get adaptive streaming ?
Like how to get several video quality (SD,HD or 720px,1080px) from original video that I upload so that user can automatically select several video based on their bandwith ?
Please help me on this thing
Any answers is really appreciated,
Regards,
William
Here is a demo of this API call in action - http://bit.ly/1ix120K
Related
I am totally new to this field and I want to implement live Camera Streaming using webRTC using the Janus Server. But I am directionless, I don't know what to do, where to start. Any help would be highly appreciated.
I tried to explore Janus official documentation but didn't get much hold of it.
I'm using Ant Media Server for streaming. My use case requires me to record the Live Streams as VODs so the users can access the content later as well.
Like the live streams, I want to apply adaptive settings to the VODs as well so that users can get the suited resolution as per their network.
I can't find any built in solution for this yet. Can you please tell me any solution as to how can I do this!
I'm using S3 to store the recordings.
Thanks.
Thank you for the question. As far as I understand from the question, it seems that Live Streams are recorded as VoD files.
I think the most efficient way is doing that through HLS. With this way, the VoD files are recorded as HLS and multibitrates is available. No need to transcode again and it'll be played directly. Let me explain this solution step by step.
Set HLS playlist type to event and settings.deleteHLSFilesOnEnded to false . Edit your red5-web.properties for the application and set the following settings
settings.hlsPlayListType=event
settings.deleteHLSFilesOnEnded=false
Restart the server
sudo service antmedia restart
Add adaptive bitrates on the web panel.
Start Live Streaming and let the Ant Media Server create HLS(m3u8 and ts) files for each bitrate.
Stop Live Streaming
Then you can watch the stream by giving the master m3u8 file which is {STREAM_ID}_adaptive.m3u8. It can be even played directly by embedded player even if it's not live.
For more information, take a look at this wiki about HLS Playing
Please let me know if this approach helps you.
antmedia.io
I have implemented same thing refered to doc
http://musicpartners.sonos.com/node/83
for live radio streaming. the streaming url is like http://example.com/abc.m3u8
but this live stream is unable to play by sonos player. please suggest or ask me for more info.
Well, it's difficult to answer your question with so little information, but you shouldn't return the streaming URL with getMetadata as it seems you are doing. You should return the URL as a result of getMediaURI requests.
What is required to use SMIL file to utilize adaptive streaming in a videojs player. I have created the SMIL file in my wowza application and it is creating my 4 separate streams and making them available. However I cannot get my webpage, that uses videojs, to correctly play the SMIL file. Hints on that coding or where to go to find the correct documentation would be greatly appreciated.
There aren't many implementations of SMIL players. I'm sure I've seen wowza URLs that suggest it will output the SMIL as other formats, something like whatever.smil/manifest.m3u8. That's HLS which could be played on mobile and Safari natively and with videojs-contrib-hls elsewhere.
I know the question is old, but I've been struggling with this recently, so I want to share my experience in case anyone is interested. My scenario is very similar: want to deliver adaptive bitrate streaming from Wowza to clients using videojs.
There is a master link that explains how to setup and run Wowza Transcoder for live streaming, and how to set up your Adaptive Bitrate Streams using an SMIL file. Following the video in there you can achieve to have a stream that uses ABS, but the SMIL file is attached to the stream name, so it is not a solution if you have streams that come to Wowza from another Media Server origin and that need to be transcoded before being served to the clients. In the article there are a few key things mentioned (like the Stream Name Groups), but somehow things doesn't seem pretty clear, at least to me. So here is some clarification from what I understood from all articles I read and what I did to achieve ABS:
You can achieve ABS in Wowza either with SMIL files or with Stream Name Groups (NGRP). NGRP refres to a block of streams that is defined in the Transcoder template that can be played back using multi-bitrate streaming (dynamically) (<- this is what I used). And SMIL files are used to create a "static" list of streams for multi-bitrate VOD streaming. If you are using Wowza Origin-Edge Delivery you'll need the .smil file, because NGRP do not get forwarded to the edge. (Source for all this information: here).
In case you need the SMIL file, you probably need to generate a new one for every stream, and probably you want to do that in an automated way, so best way would be through an HTTP request (in the link above it is explained how to achieve this).
In case you can live with NGRP, things are a bit easier:
You need to enable Wowza Transcoder (this is pretty easy and steps are in the video I mention above).
You should create your own Transcoder Template with the different stream presets you want to deliver, as an example you can check the default ones that are already there. The more presets you add, the more work Wowza will need to do whenever a stream comes, since it will need to generate a new stream for every preset that you have defined.
Now is when we generate the NGRPs. In your Transcoder Template, you can generate as many NGRPs as you want (to clarify: these are like groups of streams, that you will be able to set in your clients video player. Each NGRP contains the streams that the video will be able to use when doing the adaptive bitrate streaming). For instance, these are the default NGRPs:
If you play the ngrp "_mobile" in the clients video player, the ABS algorithm in the player will be able to adapt itself to play either the 240p or the 160p streams based on the client capabilities.
So imagine you have these two NGRP. In order to play them in videoJS, you will need to set the source to:
http://[wowza-ip-address]:1935/<name-of-your-application>/ngrp:myStream_all/playlist.m3u8
or
http://[wowza-ip-address]:1935/<name-of-your-application>/ngrp:myStream_mobile/playlist.m3u8
... based on how many options you want to provide to the client player to use for the ABS. (For instance: if your targets are old mobile devices, you probably just want to offer a couple of low bitrate streams).
(This would be in case you're delivering an HLS stream. If other format, the extension would change, for instance if you are delivering a DASH stream you would have "/manifest.mpd" instead of "playlist.m3u8").
That is all, there is also a very helpful link in video.js documentation explaining how it does the bitrate switching: here.
I hope it helps someone! At least clarifying things! :)
I am currently creating a youtube downloader and I have the code to retrieve video thumbnails, however I want to find out a way to retrieve the video title and possibly the video size etc. If anyone can help please answer :D
I would concider you use version 3 of the Youtube API. I don't suggest parsing the html of a youtube page, you never know when they will change the format and you'll be downloading too much information. The API is much more stable.
If you look at the video section .
https://www.googleapis.com/youtube/v3/videos?id=BaW_jenozKc&part=snippet
(I can't test it on this computer)
By changing the part (or adding multiple part) you can get all the information you need about a video. Since the result is returned in json, you can use it with pretty much any programming language.
Also, read the Gettting Started. Youtube limits the number of query unless you register your application and get a developper key.
You need to read the .NET YouTube API documentation, specifically the YouTube API v2.0 – Retrieving Data for a Single Video section.
You will need to query for a single video by the video's ID and then the pieces of data in the ATOM feed that comes back to you are:
feed/entry/Title for the title of the video
feed/entry/media:group/yt:duration for the length of the video
There does not appear to be a value returned for the size of the video, however.
Try the youtube API:-
https://www.youtube.com/get_video_info?video_id=BaW_jenozKc
It should return something along the lines of:-
"&title=youtube-dl+test+video+%22%27%2F%5C%C3%A4%E2%86%AD%F0%9D%95%90".
Credits to youtube-dl:-
https://github.com/rg3/youtube-dl/blob/master/youtube_dl/extractor/youtube.py