buffering

I am trying to build an application in which i have to stream the media files (audio and video) to the browser. I am reading the file through php and send the data to browser. I am using the following code. header("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1 header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past header("Content-Type: {$file->getMimetype()}"); header("Content-Disposition: inline; filename=".$filename.";"); header("Content-Length: ".strlen($file_content)); echo $file_content; Every thing is working fine, except when i try to forward the video or audio,

Sometimes we put some debug prints in our code this way printf("successfully reached at debug-point 1\n"); some code is here printf("successfully reached at debug-point 2"); After the last printf a segmentation fault occurs. Now in this condition only debug-point1 will be print on stdio debug-point 2 print was written to stdio buffer but its not flushed because it didn't get \n so we thinks that crash occur after debug-point1. To over come from this, if I disable buffering option with stdio and stderr stream like this way setvbuf(stdout, NULL, _IONBF, 0); setvbuf(stderr, NULL, _IONBF, 0); Then

We have a customized Flash/HTML5 video player we use for users on our site. I'm currently fleshing out the experience for users who have 'suboptimal' bandwidth--basically we'd like the client side code to be able to detect poor user experience due to excessive buffering. I would like to test this "poor bandwidth" handling code in my local development environment. Does anyone know of good techniques for simulating "poor bandwidth" in a local environment for testing purposes? More specifically I have my local browser connecting to a virtual machine with instances of uWSGI, nginx, and python

I observed a few times now that A | B | C may not lead to immediate output, although A is constantly producing output. I have no idea how this even may be possible. From my understanding all three processes ought to be working on the same time, putting their output into the next pipe (or stdout) and taking from the previous pipe when they are finished with one step. Here's an example where I am currently experiencing that: tcpflow -ec -i any port 8340 | tee second.flow | grep -i "\(</Manufacturer>\)\|\(</SerialNumber>\)" | awk -F'[<>]' '{print $3}' What is supposed to happen: I look at one