python - Recording video from raspberry pi and saving it to a external hard drive -

-

i have raspberry pi model b, , raspberry pi camera module

i have either 3tb external hard drive or apple time capsule

what want able record video remotely (via ssh issue commands) , want record unlimited time until issue command stop recording. want video streamed , saved directly time capsule if possible.

so easy way of explaining want

  1. i plug in raspberry pi , connect via ssh
  2. tell raspberry pi start recording video @ 1080p @ 30fps
  3. while video being recorded getting saved directly onto time capsual
  4. have live preview mac video getting recorded can see if need adjust anything
  5. issue stop command end recording.

storage space not issue me.

this have work with

  1. raspberry pi model b
  2. 8gb sd card
  3. something similar ( don't know if same 1 ) http://www.amazon.co.uk/time-capsule-500gb-hard-drive/dp/b00132b0mg
  4. a network card : edimax ew-7811un 150mbps wireless nano usb adapter
  5. mac or pc

this first real question , i've been searching answer please excuse me if have done wrong or haven't put enough detail

raspberry pi forums has info on how done (note, examples here ran on pi, assuming correct software installed, etc.)

you stream video following command live stream , use script on mac pull in , save data 

raspivid -t -0 -w 1280 -h 720 -fps 25 -b 2000000 -o - | ffmpeg -i - -vcodec copy -an -f flv -metadata streamname=mystream tcp://0.0.0.0:6666

some investigation "tee" command camera piping file stream. this question has answer explains tee thusly:

echo "foo bar" | sudo tee -a /path/to/some/file

so, combining two, may work you:

raspivid -t -0 -w 1280 -h 720 -fps 25 -b 2000000 -o - |tee -a /home/pi/my_big_hard_drive/my_video.h264 | ffmpeg -i - -vcodec copy -an -f flv -metadata streamname=mystream tcp://0.0.0.0:6666

now, wrap line in script, can start remotely, (easier if transfer ssh keys on first, don't have enter passwords):

ssh -f pi@my_pi:/home/pi/bin/my_awesome_streamer.sh

another script can used kill raspivid & when necessary, simple such 

sudo killall -quit raspivid

should kill program.

if want play stream directly on mac, can poke around ssh man page , find out cryptic flag combination allow stream data directly through ssh connection mac also.


Comments

Post a Comment

Popular posts from this blog

c++ - How to add Crypto++ library to Qt project -

-
Image
i downloaded crypto++ source , compiled cryptlib project in visual studio 2013, , added generated .lib file qt project, made .pro file this: qt += core gui qt += sql greaterthan(qt_major_version, 4):qt += widgets target = untitled template = app sources += main.cpp\ mainwindow.cpp headers += mainwindow.h \ databasecontrol.h \ test.h forms += mainwindow.ui win32:config(release, debug|release): libs += -l$$pwd/ -lcryptlib else:win32:config(debug, debug|release): libs += -l$$pwd/ -lcryptlibd else:unix: libs += -l$$pwd/ -lcryptlib includepath += $$pwd/ dependpath += $$pwd/ win32-g++:config(release, debug|release): pre_targetdeps += $$pwd/libcryptlib.a else:win32-g++:config(debug, debug|release): pre_targetdeps += $$pwd/libcryptlibd.a else:win32:!win32-g++:config(release, debug|release): pre_targetdeps += $$pwd/cryptlib.lib else:win32:!win32-g++:config(debug, debug|release): pre_targetdeps += $$pwd/cryptlibd.lib else:unix: pre_targetdeps += $$pw
Read more

jQuery Mobile app not scrolling in Firefox -

-
i have mobile app built in jquery mobile. scrolling fine in chrome & safari, fails scroll in firefox on desktop. have other instances of same app, different features, , works across browsers. life of me, cannot figure this, please help! located here: http://re-brand.us/dsus/index.html seems bug in firefox: bug log . able scroll using keyboard not trackpad on mac. are using mac? i'll keep looking see if can find way around it.
Read more

How to use vim as editor in Matlab GUI -

-
i using matlab r2013b. using gui, command windows , editor in split screen. in matlab preferences > editor/debugger > editor. there option set custom editor instead of matlab editor. set local editor /usr/bin/vim , not able open files @ anymore. there possibility use vim editor in split screen mode? i aware of !vim file.m , not solution looking for, works satisfactory in -nodisplay mode. rather want keep split screen mode. i did not find solution 100% satisfying, using tmux intermediate solution. allows 2 use split screen 2 terminals. in 1 of can open matlab -nodesktop in terminal mode, , in other 1 vim . possible switch between both split screens. you can use functionality of gui matlab typing things commandhistory , who et cetera.
Read more