Thx Antony for this explanation. Very informative. Very appreciated. Do you know enough about the Mysql implementation to describe it similarly? See my post "Mysql explosion".
Thanks again. Nicolas. On 28 fév, 16:17, <[email protected]> wrote: > I don't understand why would you do that while there is simpler solutions? > (i.e. nginx) > > What you are trying to do seems a bit too hackish. > > FYI, APE as an internal "tick" implementation which automatically > bufferize each message in order to send them every 50ms in a single JSON > payload (this value is tunable in tick.h though). > Therefore, and because of this, it would result in a framerate limitation > and some unnecessary data copy (and thus performances degradation). > > Moreover APE (on the client-side) is doing a POST request eachtime there > is data available (long polling) which is not really efficient in your > case. BTW if you plan to support only HTML 5 client, you can use Websocket > (which is enable on FF4 beta1 to beta7 and some not updated Chrome/Safari > versions). > > Nevertheless, if you *really* want to continue in that direction : > > - Change this > :https://github.com/APE-Project/APE_Server/blob/master/src/ticks.h#L27<= > 24FPS = ~40ms > - Make sure you are posting on a channel to stream to multiple user (this > will result in memory-copy reduction) > -https://github.com/APE-Project/APE_Server/blob/master/src/main.h#L45<= > Decrease this value as small as possible to avoid data to stay in memory. > > Have fun ;) > > On Mon, 28 Feb 2011 07:14:17 -0800 (PST), Marcel Tella > > <[email protected]> wrote: > > Hei Johnathan! > > > Thank you for the help. > > > Well, I'm going to inform you about my whole project. > > > I've got some video processed in real time. My goal is to encapsulate > > little chunks of this video in the server with ffmpeg VP8 coder and > > FFmpeg webM muxer. Then, once this little chunks are encoded, the idea > > is to transmit them (i've noticed that i have to codify as base64? to > > stream them with ape). > > > Well, not just transmit, I should controll the timestamp of each chunk > > in order to achieve a smooth stream. > > > I don't know if it will be possible, but this is the line I'd like to > > follow. > > > Then, it will be combining APE, FFmpeg and the video algorythm which > > generate the image. > > > But there is no point at encoding and decoding, FFmpeg does, the > > problem is if APE will be able to base64 decode to be reproduced in > > the <video> tag. > > > I know that it's not the best explanation. Please if you don't > > understand something, please tell me. > > > Thank you very much! > > > On 27 feb, 22:57, Johnathan Leppert <[email protected]> > > wrote: > >> It could be possible. Take a look at this (streaming ASCII art video > >> using > >> node.js + HTML5 + canvas): > > >>http://www.nonblocking.io/2011/01/streaming-ascii-art-demo-on.html > > >> But it probably won't be very efficient. You could try to implement a > >> simple > >> MPEG decoder in javascript, but it probably won't be very fast. For a > >> research project, it might be interesting (but not very practical). > > >> For a practical solution, you probably want something more like the > HTML5 > >> video tag, and stream an encoded video. This takes advantage of the > >> browser's video codec engine, which is probably implemented in C, and > may > >> even use hardware acceleration to decode and overlay video. To manage > >> seeking on the server, you could write a simple APE module that seeks > >> within > >> a file. > > >> See:http://kovyrin.net/2006/10/14/flash-video-flv-streaming-nginx/fora > >> solution using an nginx module. > > >> Thanks, > > >> Johnathan > > >> On Sun, Feb 27, 2011 at 4:13 PM, Marcel Tella <[email protected]> > >> wrote: > >> > Hi! I'm a student of telecommunication from Barcelona. > > >> > I'm doing my final thesis and therefore I need to video stream from a > >> > video source (such as a webcam or video given by another program) to > a > >> > webpage. > > >> > I was wondering if it's possible with APE, and then, show the video > on > >> > the HTML 5 <video> tag. > > >> > I've seen the demo in the web, MMORG I think, and it uses a canvas, > >> > but I don't know if I can do this with html5. > > >> > The first try will be to display a video stored in the server to the > >> > web page through APE. and catch it with the <video> tag. > > >> > For what I've read, is not difficult with APE I guess, buy I don't > >> > know if it's possible. > > >> > You you think it is possible? > > >> > Then, the whole streaming purpose is to split the video into small > >> > chunks and display them in a controlled way one by one by a > >> > communication between server and client. This will achieve a smooth > >> > video streaming. > > >> > Thank you for your help! I really appreciate it! > > >> > -- > >> > You received this message because you are subscribed to the Google > >> > Groups "APE Project" group. > >> > To post to this group, send email to [email protected] > >> > To unsubscribe from this group, send email to > >> > [email protected] > >> > For more options, visit this group at > >> >http://groups.google.com/group/ape-project?hl=en > >> > --- > >> > APE Project (Ajax Push Engine) > >> > Official website :http://www.ape-project.org/ > >> > Git Hub :http://github.com/APE-Project/ -- You received this message because you are subscribed to the Google Groups "APE Project" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/ape-project?hl=en --- APE Project (Ajax Push Engine) Official website : http://www.ape-project.org/ Git Hub : http://github.com/APE-Project/
