tee

问题 I'm trying to record video and take picture at the same time with single camera in GStreamer. But I have an issue. I use tee to use both record video and take a picture. To set video duration, I use num-buffers , assume that I set 100. When take picture, the num-buffers needed is only 1 . But when using tee , num-buffers of take picture pipeline is also 100. So It's mean, my program take 100 picture and my image file is up to 5Mb(320x240). I just want it's take a single picture each 1 minute

问题 I have to do the simulation of the command tee in C for Linux. How does tee work internally? It looks like a T-shaped pipe, so should I use a pipe? Is there a special kind of pipe? 回答1: tee takes stdin and copies the data stream to stdout as well as a file given as an option, it can be used in many very different situations. An implementation in C is quite simple, just make a program that copies all data from stdin to stdout, but also use the same output statements for stdout on a file that

问题 I have to do the simulation of the command tee in C for Linux. How does tee work internally? It looks like a T-shaped pipe, so should I use a pipe? Is there a special kind of pipe? 回答1: tee takes stdin and copies the data stream to stdout as well as a file given as an option, it can be used in many very different situations. An implementation in C is quite simple, just make a program that copies all data from stdin to stdout, but also use the same output statements for stdout on a file that

问题 I have to do the simulation of the command tee in C for Linux. How does tee work internally? It looks like a T-shaped pipe, so should I use a pipe? Is there a special kind of pipe? 回答1: tee takes stdin and copies the data stream to stdout as well as a file given as an option, it can be used in many very different situations. An implementation in C is quite simple, just make a program that copies all data from stdin to stdout, but also use the same output statements for stdout on a file that

问题 I have to do the simulation of the command tee in C for Linux. How does tee work internally? It looks like a T-shaped pipe, so should I use a pipe? Is there a special kind of pipe? 回答1: tee takes stdin and copies the data stream to stdout as well as a file given as an option, it can be used in many very different situations. An implementation in C is quite simple, just make a program that copies all data from stdin to stdout, but also use the same output statements for stdout on a file that

问题 Using the python logging package, and writing a class Log, I'd like to tee stdout and stderr to a log file : log = Log("log.txt") print "line1" print "line2" print >>sys.stderr, "err1" del log print "line to screen only" The output log file would contain : 16/11/2017 09:51:58 INFO - line1 16/11/2017 09:51:58 INFO - line2 16/11/2017 09:51:58 INFO - err1 Any idea how to write this Log class, keeping the advantages of the "logging" package (time-stamps, ...) ? 回答1: The right way to achieve what

问题 Using the python logging package, and writing a class Log, I'd like to tee stdout and stderr to a log file : log = Log("log.txt") print "line1" print "line2" print >>sys.stderr, "err1" del log print "line to screen only" The output log file would contain : 16/11/2017 09:51:58 INFO - line1 16/11/2017 09:51:58 INFO - line2 16/11/2017 09:51:58 INFO - err1 Any idea how to write this Log class, keeping the advantages of the "logging" package (time-stamps, ...) ? 回答1: The right way to achieve what

问题 context: there are distinctions between different telnet clients, and certainly a distinction from those clients to, for example, the Apache library. In this case, yes, using an actual telnet client for MUD's, where the servers can be quite finnicky, so that API's or sockets just won't work. How do I go about: Spawn a new Process for every piped command. Create Threads that read the output from one command and write it to the input of the next command. right now there's no output for: package

问题 context: there are distinctions between different telnet clients, and certainly a distinction from those clients to, for example, the Apache library. In this case, yes, using an actual telnet client for MUD's, where the servers can be quite finnicky, so that API's or sockets just won't work. How do I go about: Spawn a new Process for every piped command. Create Threads that read the output from one command and write it to the input of the next command. right now there's no output for: package