Better header comments, better file output handling.

[einar-bin] / screencast.sh

diff --git a/screencast.sh b/screencast.sh
index f1a26687a51065a4686fbb9fa06d22c3e6af342b..4520980cca64357042ee37eae9d9037f5e33a6f8 100755 (executable)
--- a/screencast.sh
+++ b/screencast.sh
@@ -1,13 +1,16 @@
 #!/bin/bash
 #!/bin/bash

-# WARNING: This is a terribly dirty and messy shellscript, written over a couple of late nights
-# There was alcohol
-# You probably need to install all the gstreamer-plugins (at least -ugly and -ffmpeg) to get this to work
-# I wanted to make mp4 with x264, I didn't bother with free codecs
-
-# This script allows you to create screencasts on Linux, with optional sound inputs (both Mic and system sounds)
-# You also get to choose to record from the whole screen or just a specified window. It has only been tested
-# on Fedora 18.
-
+# WARNING: This is a terribly dirty and messy shellscript, written over a couple of late nights.
+# There was alcohol …
+# You probably need to install all the gstreamer-plugins (at least -ugly and -ffmpeg) to get this
+# to work. I wanted to make mp4 with x264, I didn't bother with free codecs.
+# 
+# So this script allows you to create screencasts on Linux, with optional sound inputs (both Mic 
+# and system sounds). It stores system sounds and mic in separate audio streams.
+# You also get to choose to record from the whole screen or just a specified window. It has only 
+# been tested on Fedora 18.
+# 
+# It dumps the recording in your $HOME directory with filename screencast-YYYY-MM-DD-HH-MM-SS.mp4
+#

 # Written by Einar Jørgen Haraldseid (http://einar.slaskete.net)
 # License: http://sam.zoy.org/wtfpl/COPYING
 
 # Written by Einar Jørgen Haraldseid (http://einar.slaskete.net)
 # License: http://sam.zoy.org/wtfpl/COPYING
 


@@ -71,6 +74,9 @@ HEIGHT=$(echo "${XWININFO}" | grep "Height: " | cut -d ":" -f 2 | awk '{print $1
 # Calculate a suitable bitrate based on window dimensions
 BITRATE=$(echo "${WIDTH} * ${HEIGHT} * 0.006" | bc | cut -d "." -f 1 )
 
 # Calculate a suitable bitrate based on window dimensions
 BITRATE=$(echo "${WIDTH} * ${HEIGHT} * 0.006" | bc | cut -d "." -f 1 )
 

+# Set file name.
+FILENAME="screencast-$(date +%F-%H-%M-%S).mp4"
+

 # Enable inputs as suitable
 if [ ${PLAYMON} != "none" ]; then
   MONITORARG="pulsesrc device=${PLAYMON} slave-method=0 provide-clock=false ! audiorate ! audioconvert ! ffenc_aac bitrate=256000 ! queue2 ! mux."
 # Enable inputs as suitable
 if [ ${PLAYMON} != "none" ]; then
   MONITORARG="pulsesrc device=${PLAYMON} slave-method=0 provide-clock=false ! audiorate ! audioconvert ! ffenc_aac bitrate=256000 ! queue2 ! mux."


@@ -83,5 +89,5 @@ fi
 gst-launch -e ximagesrc xid="${WID}" do-timestamp=1 use-damage=0 ! video/x-raw-rgb,framerate=30/1 \
  ! ffmpegcolorspace ! videoscale method=0 ! video/x-raw-yuv,width=${WIDTH},height=${HEIGHT} \
  ! x264enc speed-preset=ultrafast bitrate=${BITRATE} ! queue2 \
 gst-launch -e ximagesrc xid="${WID}" do-timestamp=1 use-damage=0 ! video/x-raw-rgb,framerate=30/1 \
  ! ffmpegcolorspace ! videoscale method=0 ! video/x-raw-yuv,width=${WIDTH},height=${HEIGHT} \
  ! x264enc speed-preset=ultrafast bitrate=${BITRATE} ! queue2 \

- ! mp4mux name="mux" ! filesink location="output.mp4" $MONITORARG $MICARG
+ ! mp4mux name="mux" ! filesink location="${HOME}/${FILENAME}" $MONITORARG $MICARG