live-streaming

问题 When I start receiving the live audio (radio) stream (e.g. MP3 or AAC) I think the received data are not kind of raw bitstream (i.e. raw encoder output), but they are always wrapped into some container format. If this assumption is correct, then I guess I cannot start streaming from arbitrary place of the stream, but I have to wait to some sync byte. Is that right? Is it usual to have some sync bytes? Is there any header following the sync byte, from which I can guess the used codec, number

问题 When I start receiving the live audio (radio) stream (e.g. MP3 or AAC) I think the received data are not kind of raw bitstream (i.e. raw encoder output), but they are always wrapped into some container format. If this assumption is correct, then I guess I cannot start streaming from arbitrary place of the stream, but I have to wait to some sync byte. Is that right? Is it usual to have some sync bytes? Is there any header following the sync byte, from which I can guess the used codec, number

问题 I'm developing a web application with angular, I need to add a window that shows a live RTSP streaming. After searching I found that can be done with JSMpeg js library. In the server side I found this nodejs example Stream = require('node-rtsp-stream') stream = new Stream({ name: 'name', streamUrl: 'rtsp_url', wsPort: 9999, ffmpegOptions: { // options ffmpeg flags '-stats': '', // an option with no neccessary value uses a blank string '-r': 30 // options with required values specify the value

问题 I am using videojs in live streaming environment and using nginx secure URLs to protect the stream. See here for the details - https://www.nginx.com/blog/securing-urls-secure-link-module-nginx-plus/ The algorithm works fine and the player is able to detect when the live.m3u8 file becomes available. However, when playing the stream, I just get a spinning wheel. On the JS console, I see that the sub-playlist e.g. live_109.m3u8 URL does not have the required md5 hash and expiry timestamp and

问题 I want to make a web application and I want to use YouTube API to allow my users make live broadcasts. Is it necessary that my users log with their Google/YouTube accounts to use the live stream or is it possible to make them use this function without bothering them with this detail? 回答1: In order to create the Live Event and Live Stream objects required for a livestream on YouTube, the user making those requests must be authenticated. From the Docs: Your application must have authorization

问题 I'm familiar with publishing/subscribing to predefined live video feeds on Adobe Flash Media Server. How can I allow users to create new streams dynamically? Meaning, instead of providing fixed feeds, users click on "Create Feed", enter a name, and then anyone would be able to publish/subscribe to that feed. I'm not looking for a source-code (though obviously that would be nice). Rather, I'd like to understand what I need to do a high-level to get this to work. 回答1: Answering my own question:

问题 I'm familiar with publishing/subscribing to predefined live video feeds on Adobe Flash Media Server. How can I allow users to create new streams dynamically? Meaning, instead of providing fixed feeds, users click on "Create Feed", enter a name, and then anyone would be able to publish/subscribe to that feed. I'm not looking for a source-code (though obviously that would be nice). Rather, I'd like to understand what I need to do a high-level to get this to work. 回答1: Answering my own question:

问题 I am new to iOS and multimedia development and I am working on an application which will capture video from iPhone's camera and send the live stream to a media server. In this link a person asked a question on stackoverflow saying that his application was rejected by Apple as he didn't use Apple HLS (HTTP Live Streaming) method in his application for receiving the live stream. But my case is different as I am not receiving a live stream in the iPhone. I have to send the live video to a media

问题 I am attempting to write a javascript function that will enable an instance of JW Player to automatically switch from a primary live HLS stream to a backup live HLS stream in the event of an error (ex: primary encoder goes down). What I have so far: <div id="myElement">Loading the player...</div> var playerInstance = jwplayer("myElement"); playerInstance.setup({ file: "http://server/primary/playlist.m3u8", width: 640, height: 360, title: 'Basic Video Embed', description: 'work damn you', });

问题 Now I try to make server using Raspberry Pi which send live stream image data to browser. The server side was written in Python & Tornado, while client side was written in HTML and javascript. Both use WebSocket. (I am a beginner of javascript.) These are the codes Server side: class WSHandler(WebSocketHandler): def initialize(self, camera): self.camera = camera cv.SetCaptureProperty(self.capture, cv.CV_CAP_PROP_FRAME_WIDTH, 480) cv.SetCaptureProperty(self.capture, cv.CV_CAP_PROP_FRAME_HEIGHT