Is it possible to stream an audio (RESTApi ) in UE4 for a game, I checked the audio docs from UE4, seems like we need to drop audio files as an asset and load it accordingly, is there any possibility to stream audio from the server as a simple HTTP stream for a game in UE4
Any advice would be a great help.
(https://docs.unrealengine.com/en-US/WorkingWithMedia/Audio/index.html)
Related
I have a content creation site I am building and im confused on audio and video.
If I have a content creators audio or video stored in s3 and then I want to display their file will the html video player or audio player stream the media or will it download it fully then play it?
I ask because what if the video or audio is significantly long. like 2 hours for example. I need to know how to solve the use case.
Lastly what file type is most acceptable for viewing on webpages? It seems like MPEG-4 is the best bet. Is that true?
Most video player clients and browsers will attempt to stream the video if they can.
For an mp4 video file hosted on a server, so long as the header is at the start and the server accepts range requests, this will mean the player downloads the video in chunks and starts playing as soon as it has enough to decide the first frames.
For more professional streaming services, they will generally use an adaptive bit rate streaming protocol like DASH or HLS (see this answer: https://stackoverflow.com/a/42365034/334402) and again the video will be streamed in chunks, or segments, and will start playing while it is streaming.
To answer your last question you need to be aware that the raw video is encoded (e.g. h.264, VP9 etc) and the video, audio, subtitle etc tracks stored in a video container (e.g. mp4, Web etc).
The most common format is probaly h.264 encoded and mp4 containers at this time.
The particular profile for h.264 can matter also depending on the device - baseline is probably the most supported profile at this time. You can find examples of media support for different devices online, e.g. for Android: https://developer.android.com/guide/topics/media/media-formats
#Mick's answer is spot on. I'll just add that mp4 (with h264 encoding) will work in just about every browser out there.
The issue with mp4 files (especially with a 2 hour long movie) isn't so much the seeking & streaming. If your creator creates a 4K video - thats what you'll deliver to everyone (even mobile phones). HLS streaming on the other hand has adaptive bitrates - where the video adapts to both the screen & the available network speeds. You'll get better playback results with less buffering (and if you're using AWS - a LOT LESS data egress) with video streaming.
(there are a bunch of APIs and services that can help you do this - including api.video (where I work), Mux and others).
I have coded a videoboard. Like a soundboard but with video. You go to one URL that's just a black screen and another one which has a list of different videos (sender). When you click one of these videos it plays on the black screen (receiver). If you play 2 different videos at the same time both videos are shown next to each other on the receiver. That's working fine for several months now. It just creates multiple html video-elements with multiple source-tags (x265 mp4 and vp9 webm).
I recently made a discord bot which takes the webm, extracts the opus stream and plays its sound in the voice channel where the bot is connected. This has one disadvantage: It can only play one sound at a time. It happens a lot that there are multiple videos/sounds playing at the same time so this a bit of a bummer.
So I thought I should create a audiostream on the server which hosts the videoboard and just connect the bot to that stream. But I have no clue how to do this. All I know is that it's very likely going to involve ffmpeg.
What would be the best option here? What I think I would need is basically an infinite silence stream and the possibility to add a audio file onto that stream at any point which will play simultaneously with other audio files that were added before and have not ended payback yet. How is that possible? Somehow with m3u8 playlist-files or via rtsp protocol?
Thanks :)
I think it can be helpful for you https://bitbucket.org/kaleniuk_ihor/neuro_vision/src/db_watch/
Also this library was very useful for me https://github.com/kyriesent/node-rtsp-stream you can just install npm i node-rtsp-stream
Approx we all know about gaana.com, and saavn.com, that website stream audio mp3 files to client side but does't allow to users to grab the audio files, actually we want to know what technology he used to stream the audio mp3 files.
is he using streaming server or or something else ?
Can you describe the technology he is using in steaming the audio files.
Actually we are also creating a web app where audio files will be streammed in client side and we also don't want to allow users to download our mp3 files like gaana.com or saavn.com.
and we are also curious about if we want to stream our audio mp3 files in three different quality the what should i do. Should we convert all the mp3 files in all the three different quality and upload to the server or is any another solution exist for this purpose.
If you want to code your own streaming server then you can use this link
https://pypi.python.org/pypi/DeeFuzzer/ it's a python based streaming server, or you can also use ffmpeg or even VLC
I would like to live stream recorded audio from the browser to the server and play it. The server will end up being a embedded device that plays these audio streams.
So far I've successfully recorded audio and encoded it into a WAVE file and play it on the browser using the web audio API and following this tutorial.
Now I have a stream of .WAV encoded blobs. I tried finding ways to stream these to a nodejs backend with a web socket connection and play them using a npm module. But I haven't had any luck.
Does anyone know of any resources or modules I should follow? Maybe I should try a different approach? The audio needs to be played relatively quickly on the server since recording on the browser.
I'm doing this currently with some software that allows for streaming to internet radio servers via your web browser.
I use the WebAudio API along with getUserMedia to get live PCM audio data from the sound device. From there, I convert this data from 32-bit float to 16, 12, or 8 bit data depending on the amount of bandwidth available. This converted int samples are written to a stream setup with BinaryJS which wraps streams on both the Node.js and the client. As a bonus with BinaryJS, you can have as many streams open as you want, so I use a second stream over the same WebSocket connection for control data.
http://demo.audiopump.co:3000/
I've successfully implemented the OpenTok. In group discussion (Three people, including moderator) video and audio transmission works well, but problem starts when moderator record stream. Video clip downloaded from OpenTok server has no sound.
Does anyone have any idea what can be wrong?
Thanks to Ankur (OpenTok Forum):
The audio stream in the downloaded videos is in the SPEEX codec. Many
desktop audio players don't recognize the codec. You may need to use
ffmpeg to transcode the audio before it is playable in programs like
VLC.