1 00:00:02,400 --> 00:00:07,890 Hi, and welcome back to lesson for I think I previously said, listen tree in the last section, so 2 00:00:08,280 --> 00:00:09,570 forgive me for that mistake. 3 00:00:10,140 --> 00:00:13,170 So listen for real now and what this is. 4 00:00:13,710 --> 00:00:18,630 This is something that a lot of beginners asks questions about because a lot of lot of them are trying 5 00:00:18,630 --> 00:00:24,660 to process video from a streaming source somewhere online or from a local IP camera. 6 00:00:25,140 --> 00:00:29,580 So I'm going to show you how we can do that right now using our TSP streams. 7 00:00:29,580 --> 00:00:31,500 So let's take a look at this notebook. 8 00:00:33,000 --> 00:00:35,370 So what is our DSP or DSP? 9 00:00:35,370 --> 00:00:42,250 Is a video standard streaming protocol stands for Real-Time Streaming Protocol that allows basically 10 00:00:42,250 --> 00:00:47,220 it's a communication protocol that allows video files to be streamed over the web. 11 00:00:47,610 --> 00:00:49,890 So you can see this is a block diagram of how it works. 12 00:00:49,890 --> 00:00:52,200 There's a web server here that's digesting the file. 13 00:00:52,800 --> 00:00:56,130 This comes through the web browsers metal file media player. 14 00:00:56,520 --> 00:01:02,430 This is the artsy, including here in the RTP for the audio and video content being encoded here. 15 00:01:03,390 --> 00:01:05,520 So you can see it goes like this here. 16 00:01:06,240 --> 00:01:09,390 So it was developed by RealNetworks and Netscape. 17 00:01:09,390 --> 00:01:16,560 So if you're if you remember the computer world in the 90s, Netscape was one of the most popular browsers 18 00:01:16,560 --> 00:01:20,630 back then, and there was a video player called Real Video Player, which I do remember. 19 00:01:20,640 --> 00:01:24,480 I remember downloading it to opening video files and thinking it was so cool. 20 00:01:24,480 --> 00:01:28,140 I can watch a video on my computer and that was a pretty ancient computer thing. 21 00:01:28,140 --> 00:01:34,410 That was a Windows 95, 46, 16 megabits computer, my first computer. 22 00:01:35,190 --> 00:01:43,560 So that's was developed since back then and basically just sends video in packets here, sentences and 23 00:01:43,560 --> 00:01:44,150 finished. 24 00:01:44,190 --> 00:01:48,210 So we just fixed that earth to me that for now. 25 00:01:48,990 --> 00:01:54,060 So that's basically blocked off the Artspace streaming file system. 26 00:01:54,690 --> 00:02:03,300 So this site here basically has one of the only RTP or DSP or SDP streams. 27 00:02:03,540 --> 00:02:05,430 Sorry for that's a bit of a tongue twister. 28 00:02:05,430 --> 00:02:07,530 Sometimes say so. 29 00:02:07,530 --> 00:02:13,620 It's used widely used in testing across the web for computer vision or other streaming video applications. 30 00:02:14,130 --> 00:02:18,780 So notice instead of http, we have something called RTC speed. 31 00:02:18,810 --> 00:02:22,670 That's the protocol similar to how it should be addressed here. 32 00:02:23,130 --> 00:02:29,460 It tells a browser that's now looking at a RTU TSB stream, and so it changes the protocol of what it 33 00:02:29,460 --> 00:02:30,720 should expect as to data. 34 00:02:31,260 --> 00:02:36,740 And this is a Bugs Bunny movie stream that's been hosted this, and let's hope it's still working. 35 00:02:36,750 --> 00:02:41,560 It was working the last time I tried this notebook, so let's check it out and you can see before I 36 00:02:41,560 --> 00:02:42,060 check it out. 37 00:02:42,480 --> 00:02:45,270 We just have the simple wire loop we're capturing. 38 00:02:45,270 --> 00:02:50,040 Read here so you can see video capture that you had 30 of us still open. 39 00:02:50,040 --> 00:02:54,180 See, the function allows us just to directly dump the URL here. 40 00:02:54,870 --> 00:02:58,760 So let's load this and we can see if it comes up. 41 00:02:58,800 --> 00:02:59,340 There it is. 42 00:02:59,850 --> 00:03:06,830 So you can see the stream does short loops it and you can see it's streaming here. 43 00:03:06,840 --> 00:03:09,300 So this is a video that's being streamed on the internet. 44 00:03:09,690 --> 00:03:14,760 You can also open this link up with DLC, as well as open network stream, I believe. 45 00:03:15,630 --> 00:03:17,610 And let's end this video here. 46 00:03:17,910 --> 00:03:19,020 So we're pressing enter. 47 00:03:19,530 --> 00:03:21,180 It exits the video here. 48 00:03:21,870 --> 00:03:28,440 So if you looking for interested in using multiple IP streams, no, there's no way I can actually demonstrate 49 00:03:28,440 --> 00:03:30,990 that here without getting the IP streams available. 50 00:03:31,410 --> 00:03:33,640 However, you can take a look at Jeff Bass. 51 00:03:33,660 --> 00:03:34,680 He is the creator. 52 00:03:34,720 --> 00:03:36,180 This is his presentation talk. 53 00:03:36,690 --> 00:03:42,040 He's the creator of this library called Image Z and Q, which is quite cool. 54 00:03:42,060 --> 00:03:48,450 It allows us to use a Raspberry Pi to load multiple image streams from those Raspberry Pi and then run 55 00:03:48,450 --> 00:03:50,640 the processing and open TV. 56 00:03:51,210 --> 00:03:54,120 So any imaging library that you want to use? 57 00:03:54,360 --> 00:03:54,660 OK. 58 00:03:55,260 --> 00:03:58,100 So you can take a look if you need to use it for your application. 59 00:03:58,140 --> 00:04:02,940 I think it's quite useful for some people trying to run this just to see if it would work here, but 60 00:04:02,940 --> 00:04:06,600 it doesn't actually do anything unless you have to stream setup. 61 00:04:07,080 --> 00:04:15,150 So that's it for this lesson on IP and Artspace real time streaming protocol sources of video, video 62 00:04:15,150 --> 00:04:17,280 files or videos, I should say. 63 00:04:17,790 --> 00:04:18,450 So that's it. 64 00:04:18,450 --> 00:04:24,360 For this lesson, we will now move on to how to auto reconnect to video streams, which is a common 65 00:04:24,360 --> 00:04:29,310 problem with video streams due to poor internet connectivity or connectivity issues. 66 00:04:29,520 --> 00:04:32,590 So I'll see you in that next lesson. 67 00:04:32,700 --> 00:04:33,180 Thank you.