Npark: /* Recording User Actions on Device */ link added

2016-01-13T19:58:22Z

Recording User Actions on Device: link added

← Older revision		Revision as of 19:58, 13 January 2016
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	== Recording User Actions on Device ==		== Recording User Actions on Device ==
	Since the implementation of [https://bugzilla.mozilla.org/show_bug.cgi?id=1144103 Bug 1144103], it has been made possible to use adb screenrecord command on ~~fxos~~ devices that have kitkat or later build. In python gaiatest, this has been implemented in [https://bugzilla.mozilla.org/show_bug.cgi?id=1237069 Bug 1237069].		Since the implementation of [https://bugzilla.mozilla.org/show_bug.cgi?id=1144103 Bug 1144103], it has been made possible to use [http://developer.android.com/tools/help/shell.html#screenrecord '''adb screenrecord'''] command on FxOS devices that have kitkat or later build. In python gaiatest, this has been implemented in [https://bugzilla.mozilla.org/show_bug.cgi?id=1237069 Bug 1237069].

	In order to perform video capture, the '''layers.screen-recording.enabled''' preference need to be set to '''True'''. Then, with the adb installed and the device connected to pc via USB, one can issue a ''''adb shell screenrecord /sdcard/<filename>'''' command to start the recording. Press '''Ctrl-c''' to stop recording.		* In order to perform video capture, the '''layers.screen-recording.enabled''' preference need to be set to '''True'''.
			* Then, with the adb installed and the device connected to pc via USB, one can issue a ''''adb shell screenrecord /sdcard/<filename>'''' command to start the recording.
			* Press '''Ctrl-c''' to stop recording.
			* Then, pull the captured video file from the device via the command ''''adb pull /sdcard/<filename>''' '

	~~Then~~, ~~pull the captured video file from~~ the device ~~via~~ the ~~command ''''adb pull /sdcard/<filename>''' '~~		Please note that the maximum recording time is 180 seconds, and currently the FxOS device only supports the framerate of 15fps.

	Following bash script automates above steps. Save below script, chmod +x it, and execute to use screenrecord command as well.		Following bash script automates above steps. Save below script, chmod +x it, and execute to use screenrecord command as well.

Npark: video capture of UI

2016-01-13T19:52:40Z

video capture of UI

New page

== Recording User Actions on Device ==
Since the implementation of [https://bugzilla.mozilla.org/show_bug.cgi?id=1144103 Bug 1144103], it has been made possible to use adb screenrecord command on fxos devices that have kitkat or later build. In python gaiatest, this has been implemented in [https://bugzilla.mozilla.org/show_bug.cgi?id=1237069 Bug 1237069].

In order to perform video capture, the '''layers.screen-recording.enabled''' preference need to be set to '''True'''. Then, with the adb installed and the device connected to pc via USB, one can issue a ''''adb shell screenrecord /sdcard/<filename>'''' command to start the recording. Press '''Ctrl-c''' to stop recording.

Then, pull the captured video file from the device via the command ''''adb pull /sdcard/<filename>''' '

Following bash script automates above steps. Save below script, chmod +x it, and execute to use screenrecord command as well.

<source lang="bash">
#!/bin/bash

# source borrowed from http://adventuresinqa.com/2015/02/04/android-screen-recording-using-adb/

# pull pref, and push pref with screenrecoding enabled if not already present
PREFS_JS=$(adb shell echo -n "/data/b2g/mozilla/*.default")/prefs.js
PREF_LINE='user_pref("layers.screen-recording.enabled", true);'

if [ -z "$1" ]
then
echo "Please provide the video filename"
else
echo "Pulling preferences: $PREFS_JS"
adb pull $PREFS_JS

if grep "$PREF_LINE" prefs.js
then
echo "Pref is already set."
else
echo "Pref is not set, setting and restarting..."
echo "$PREF_LINE" >> prefs.js
adb shell stop b2g
adb push prefs.js $PREFS_JS
adb shell start b2g
fi

# start recording
adb shell screenrecord /sdcard/$1.mp4 &

# Get its PID
PID=$!

# Upon a key press
read -p "Press [Enter] to stop recording..."

# Kills the recording process
kill $PID

# Wait for 3 seconds for the device to compile the video
sleep 3

# Download the video
adb pull /sdcard/$1.mp4

# Delete the video from the device
adb shell rm /sdcard/$1.mp4

# Kill background process incase kill PID fails
trap "kill 0" SIGINT SIGTERM EXIT
fi
</source>

B2G/QA/Manual Test/Video Capture - Revision history

Npark: /* Recording User Actions on Device */ link added

Npark: video capture of UI