Streamplayer

streamplayer.sh

#!/bin/bash

# These are the kludge commands. If I am on my PC, I want to view things 
# with XXXX options. If on my laptop, YYYY options.
if [ "$( uname -n )" = "Crushernator" ] ; then
    # Laptop: Bad video card. Use x11 and zoom to reduce strain and choppiness.
    extras=" -vo x11 -zoom "
elif [ "$( uname -n )" = "flancrest" ] ; then
    # Desktop: So far, nothing.
    extras="   "
else
    extras="   "
fi


############################################################################
####  Heartbeat commands. These are used to inihibit the screensaver.  #####
############################################################################
## Gnome ###################################################################
screensaverinhibit=" gnome-screensaver-command -p "

## Xscreensaver ############################################################
screensaverinhibit=" xscreensaver-command -deactivate "

## Better - simulates user activity with X: shift press.####################
screensaverinhibit=" ./keepalive "
############################################################################

while (( "$#" )) ;   
  do
    screenopts=" -fs "
    if [ "$1" == "audio" ] ; then
        screenopts=" -vo null "
        screensaverinhibit=" "
        shift
    fi

    #Dump info if that is all which is requested.
    if [ "$1" == "info" ] ;
        then
        shift
        #Echo information to the user.
        echo -n "### Title: "
        youtube-dl -e -q "$1"
        echo -n "### Description: "
        youtube-dl --get-description -q "$1"

    elif [ "$1" == "noinfo" ] ;
        then
        shift

        #Make the FIFO.
        youtubefifo="$RANDOM$RANDOM$RANDOM$RANDOM$RANDOM.fifo"
        mkfifo "./$youtubefifo"

        #Dump file into FIFO (ie: fill buffer into FIFO.)
#        youtube-dl -q -f 18 -o "./$youtubefifo" "$1"  & 
        youtube-dl -q  -o "./$youtubefifo" "$1"  &

        #Check that no errors have occured.
        ytdl_pid=$!                            #The process id of the previously run youtube-dl.
        sleep 2                                #Wait for youtube-dl to either die or wait around.

        if [ "$(ps -ef | grep " $ytdl_pid " | grep -v grep)" ] ;  #Check if youtube-dl is still waiting.
            then
            #Play it with Mplayer.
#            mplayer $extras -really-quiet -heartbeat-cmd "$screensaverinhibit" -cache 65536 -cache-min 1 -ao sdl $screenopts -af scaletempo -speed 1.0 "./$youtubefifo" 2>/dev/null
            mplayer $extras -really-quiet -heartbeat-cmd "$screensaverinhibit" -cache 65536 -cache-min 1  $screenopts -af scaletempo -speed 1.0 "./$youtubefifo" 2>/dev/null
        fi

        #Remove the FIFO.
        rm "./$youtubefifo"

    else
        #Echo information to the user.
        echo -n "##Title: "
        youtube-dl -e -q "$1"
        echo -n "##Description: "
        DESCRIPTION=$( youtube-dl --get-description -q "$1" )
        echo $DESCRIPTION

        # If this is a Ted talk, we skip the first 15 seconds (the noisy intro.)
        if [ "$( echo $DESCRIPTION | grep '.*TED.*\|.*ted.*\|.*Ted.*' )" != "" ]; then
            extras="$extras -ss 15"
        fi


        #Make the FIFO.
        youtubefifo="$RANDOM$RANDOM$RANDOM$RANDOM$RANDOM.fifo"
        mkfifo "./$youtubefifo"

        #Dump file into FIFO (ie: fill buffer into FIFO.)
#        youtube-dl -q -f 18 -o "./$youtubefifo" "$1"  & 
        youtube-dl -q  -o "./$youtubefifo" "$1"  &

        #Check that no errors have occured.
        ytdl_pid=$!                            #The process id of the previously run youtube-dl.
        sleep 2                                #Wait for youtube-dl to either die or wait around.

        if ps -ef | grep " $ytdl_pid " | grep -v grep #Check if youtube-dl is still waiting.
            then
            #Play it with Mplayer.
            echo "Playing with mplayer now"
#            mplayer $extras -really-quiet -heartbeat-cmd "$screensaverinhibit" -cache 65536 -cache-min 1 -ao sdl $screenopts -af scaletempo -speed 1.0 "./$youtubefifo" 2>/dev/null
            mplayer $extras -really-quiet -heartbeat-cmd "$screensaverinhibit" -cache 65536 -cache-min 1  -af scaletempo -speed 1.0 $screenopts "./$youtubefifo"
        fi

        #Remove the FIFO.
        rm "./$youtubefifo"

    fi

################################################################################################################################################
######################From back when Mplayer could directly stream the link from youtube-dl#####################################################
################################################################################################################################################
#    #Mobile format:
#    #youtube-dl -m -g "$@" | mplayer -quiet -heartbeat-cmd "gnome-screensaver-command -p" -cache 65536 -cache-min 1 -ao sdl -fs -af scaletempo -speed 0.95 -playlist -
#
#thelink="$( echo $( youtube-dl -f 18 -g "$1" ) )"
#echo The link is now "$thelink"
#    #Regular format:
#    mplayer -quiet -heartbeat-cmd "gnome-screensaver-command -p" -cache 65536 -cache-min 1 -ao sdl $screenopts -af scaletempo -speed 1.0  $thelink
#
#    #Go up to this format, maximum:
#    #youtube-dl --max-quality=18 -g "$@" | mplayer -quiet -heartbeat-cmd "gnome-screensaver-command -p" -cache 65536 -cache-min 1 -ao sdl -fs -af scaletempo -speed 0.95 -playlist -
################################################################################################################################################
################################################################################################################################################
################################################################################################################################################

    shift
done

exit

The third keepalive is a c program which periodically simulates an X event (shift key being pressed.) It has been the only reliable way to inhibit screensavers that I have found. Last I heard, gnome-screensaver was outright ignoring the -p command. Lemme know if you want this program.

Also: sorry about the tidyness.