Difference between revisions of "Make a movie from JPEG images using gstreamer"

From ElphelWiki
Jump to: navigation, search
 
(No difference)

Latest revision as of 07:23, 15 June 2007

#!/bin/sh
# Capture a frame every SLEEP_TIME seconds from URL and rename it PREFIX-nnnnnn.jpg:

PREFIX=img
SLEEP_TIME=1
URL="http://192.168.0.90/admin-bin/ccam.cgi?opt=vhcxy-"

num=0

while true ; do

        img=$PREFIX-`printf %06d $num`.jpg

        if [ -s $img ] ; then
                echo exists: $img
        else
                wget -q "$URL" -O $img && sleep $SLEEP_TIME && ln -sf $img $PREFIX.jpg
                echo $img
        fi

        num=`expr $num + 1`

done

-----------------------------------------------------------------------

<html>

<!--
To watch the frames while capturing them without disturbing the camera,
put this html page in a file located in the same folder,
replace 'content="1"' with the number of seconds you want between updates,
and open it with your browser:
-->

    <head>
        <meta http-equiv="refresh" content="1">
    </head>

    <body>
        <img src=img.jpg>
    </body>

</html>

-----------------------------------------------------------------------

#!/bin/sh
# Create an ogg/theora movie using the JPEG files generated with the first script on this page:

PREFIX=img
FRAMERATE=30
WIDTH=768
HEIGHT=576
QUALITY=63
OUTFILE=out.ogg

if [ -s "$OUTFILE" ] ; then
        echo file exists: $OUTFILE 1>&2
        exit 1
fi

time gst-launch-0.10 \
        multifilesrc \
                location="$PREFIX-%06d.jpg" ! image/jpeg,framerate=$FRAMERATE/1 \
        ! decodebin \
        ! videoscale \
                ! video/x-raw-yuv,width=$WIDTH,height=$HEIGHT \
        ! progressreport \
                name=progress \
        ! theoraenc \
                quality=$QUALITY \
        ! oggmux \
        ! filesink \
                location="$OUTFILE"