- set externremux.sh executable in distribution archive

- externremux quality value should be wlan54, not wlan45

CONTRIBUTORS

@@ -37,6 +37,7 @@ Rolf Ahrenberg
   for improving LIMIKUUTIO and PARENTALRATING patch detection
   for suggesting to include the charset in HTTP replies
   for requesting replacement of asprintf calls
+  for suggesting to change the URL path from EXTERN to EXT
 
 Rantanen Teemu
   for providing vdr-incompletesections.diff
@@ -146,3 +147,10 @@ lhanisch
  
 Eric Valette
   for adding support for EnhancedAC3
+
+carel
+  for reporting "plugin doesn't honor APIVERSION" error in new Makefile
+  for helping to find a way to cleanly shutdown externremux with mencoder
+
+wolfi.m
+  for reporting a typo in externermux quality parameter value

HISTORY

@@ -1,6 +1,32 @@
 VDR Plugin 'streamdev' Revision History
 ---------------------------------------
+ 
+2010-07-20: Version 0.5.0a
 
+- set externremux.sh executable in distribution archive
+- externremux quality value should be wlan54, not wlan45
+
+2010-07-19: Version 0.5.0
+
+- using SIGINT in externremux to kill mencoder works better than SIGTERM;
+  especially x264 still needs a SIGKILL sometimes
+- added --remove-destination to cp commands installing plugins
+- fixed "plugin doesn't honor APIVERSION" (reported by carel@vdrportal)
+- updated Italian translation (thanks to Diego Pierotto)
+- config option "client may suspend" hidden if not applicable
+- updated and enhanced README
+- separated language resources of client and server
+- restructured build process
+- added support for HTTP method HEAD
+- rewrite of externremux.sh, including support for various URL parameters,
+  logging and improved shutdown
+- start externremux script in a separate process group
+- changed HTTP URL path for externremux from EXTERN to EXT (suggested by
+  Rolf Ahrenberg)
+- HTTP headers now have to be emitted by externremux script
+- pass channel related information and URL parameters to externremux script
+  through environment
+- implement CGI like interface for externremux script
 - dropped "Synchronize EPG" feature. Please use epgsync-plugin instead
   (available from http://vdr.schmirler.de)
 - proper tsplay-0.2 patch detection. tsplay-0.1 is no longer recognized

streamdev-server/externremux.sh

@@ -0,0 +1,267 @@
+#!/bin/bash
+#
+# externremux.sh - sample remux script using mencoder for remuxing.
+#
+# Install this script as VDRCONFDIR/plugins/streamdev-server/externremux.sh
+#
+# The parameter QUALITY selects the default remux parameters. Adjust
+# to your needs and point your web browser to http://servername:3000/ext/
+# To select different remux parameters on the fly, insert a semicolon
+# followed by the name and value of the requested parameter, e.g:
+#   e.g. http://servername:3000/ext;QUALITY=WLAN11;VBR=512/
+# The following parameters are recognized:
+#
+# PROG   actual remux program
+# VC     video codec
+# VBR    video bitrate (kbit)
+# VOPTS  custom video options
+# WIDTH  scale video to width
+# AC     audio codec
+# ABR    audio bitrate (kbit)
+# AOPTS  custom audio options
+#
+
+##########################################################################
+
+### GENERAL CONFIG START
+###
+# Pick one of DSL1000/DSL2000/DSL3000/DSL6000/DSL16000/LAN10/WLAN11/WLAN54
+QUALITY='DSL1000'
+# Program used for logging (logging disabled if empty)
+LOGGER=logger
+# Path and name of FIFO
+FIFO=/tmp/externremux-${RANDOM:-$$}
+# Default remux program (cat/mencoder/ogg)
+PROG=mencoder
+# Use mono if $ABR is lower than this value
+ABR_MONO=64
+###
+### GENERAL CONFIG END
+
+### MENCODER CONFIG START
+###
+# mencoder binary
+MENCODER=mencoder
+# Default video codec (e.g. lavc/x264/copy)
+MENCODER_VC=lavc
+# Default audio codec (e.g. lavc/mp3lame/faac/copy)
+MENCODER_AC=mp3lame
+# Default video codec if lavc is used (-ovc lavc -lavcopts vcodec=)
+MENCODER_LAVC_VC=mpeg4
+# Default audio codec if lavc is used (-oac lavc -lavcopts acodec=)
+MENCODER_LAVC_AC=mp2
+###
+### MENCODER CONFIG END
+
+### OGG CONFIG START
+###
+# ffmpeg2theora binary 
+OGG=ffmpeg2theora
+# speedlevel - lower value gives better quality but is slower (0..2)
+OGG_SPEED=1
+# videoquality - higher value gives better quality but is slower (0..10)
+OGG_VQUALITY=0
+# audioquality - higher value gives better quality but is slower (0..10)
+OGG_AQUALITY=0
+###
+### OGG CONFIG END
+
+##########################################################################
+
+function hasOpt { echo "$1" | grep -q "\b${2}\b"; }
+
+function isNumeric() { echo "$@" | grep -q '^[0-9]\{1,\}$'; }
+
+function remux_cat
+{
+	startReply
+	exec 3<&0
+	cat 0<&3 >"$FIFO" &
+}
+
+function remux_mencoder
+{
+	# lavc may be used for video and audio
+	LAVCOPTS=()
+
+	# Assemble video options
+	VC=${REMUX_PARAM_VC:-$MENCODER_VC}
+	VOPTS=${REMUX_PARAM_VOPTS}
+	WIDTH=${REMUX_PARAM_WIDTH:-$WIDTH}
+	case "$VC" in
+		lavc)
+			LAVCOPTS=(
+				${VOPTS}
+				$(hasOpt "$VOPTS" vcodec || echo "vcodec=$MENCODER_LAVC_VC")
+				${VBR:+vbitrate=$VBR}
+			)
+			[ ${#LAVCOPTS[*]} -gt 0 ] && VOPTS=$(IFS=:; echo -lavcopts "${LAVCOPTS[*]}")
+			;; 
+		x264)
+			X264OPTS=(
+				${VOPTS}
+				$(hasOpt "$VOPTS" threads || echo "threads=auto")
+				${VBR:+bitrate=$ABR}
+			)
+			[ ${#X264OPTS[*]} -gt 0 ] && VOPTS=$(IFS=:; echo -x264encopts "${X264OPTS[*]}")
+			;;
+		copy)
+			VOPTS=
+			;;
+		*)
+			error "Unknown video codec '$VC'"
+			;;
+	esac
+
+	# Assemble audio options 
+	AC=${REMUX_PARAM_AC:-$MENCODER_AC}
+	AOPTS=${REMUX_PARAM_AOPTS}
+	case "$AC" in
+		lavc)
+			LAVCOPTS=(
+				${LAVCOPTS[*]}
+				${AOPTS}
+				$(hasOpt "$AOPTS" acodec || echo "acodec=$MENCODER_LAVC_AC")
+				${ABR:+abitrate=$ABR}
+			)
+	
+			[ ${#LAVCOPTS[*]} -gt 0 ] && AOPTS=$(IFS=:; echo -lavcopts "${LAVCOPTS[*]}")
+			# lavc used for video and audio decoding - wipe out VOPTS as video options became part of AOPTS
+			[ "$VC" = lavc ] && VOPTS=
+			;; 
+		mp3lame)
+			LAMEOPTS=(
+				${AOPTS}
+				$(isNumeric "${ABR}" && [ "${ABR}" -lt "$ABR_MONO" ] && ! hasOpt "${AOPTS}" mode ] && echo 'mode=3')
+				${ABR:+preset=$ABR}
+			)
+			[ ${#LAMEOPTS[*]} -gt 0 ] && AOPTS=$(IFS=:; echo -lameopts "${LAMEOPTS[*]}")
+			;;
+		faac)
+			FAACOPTS=(
+				${AOPTS}
+				${ABR:+br=$ABR}
+			)
+			[ ${#FAACOPTS[*]} -gt 0 ] && AOPTS=$(IFS=:; echo -faacopts "${FAACOPTS[*]}")
+			;;
+		copy)
+			AOPTS=
+			;;
+		*)
+			error "Unknown audio codec '$AC'"
+			;;
+	esac
+
+
+	startReply
+	exec 3<&0
+	echo "$MENCODER" \
+		-ovc $VC $VOPTS \
+		-oac $AC $AOPTS \
+		${WIDTH:+-vf scale -zoom -xy $WIDTH} \
+		-o "$FIFO" -- - >&2
+	"$MENCODER" \
+		-ovc $VC $VOPTS \
+		-oac $AC $AOPTS \
+		${WIDTH:+-vf scale -zoom -xy $WIDTH} \
+		-o "$FIFO" -- - 0<&3 >/dev/null &
+}
+
+function remux_ogg
+{
+	VOPTS=${REMUX_PARAM_VOPTS//[:=]/ }
+	AOPTS=${REMUX_PARAM_AOPTS//[:=]/ }
+	WIDTH=${REMUX_PARAM_WIDTH:-$WIDTH}
+
+	OGGOPTS=(
+		${VOPTS}
+		${VBR:+--videobitrate $VBR}
+		$(hasOpt "${VOPTS}" videoquality || echo "--videoquality $OGG_VQUALITY")
+		$(hasOpt "${VOPTS}" speedlevel || echo "--speedlevel $OGG_SPEED")
+		${AOPTS}
+		${ABR:+--audiobitrate $ABR}
+		$(isNumeric "${ABR}" && [ "${ABR}" -lt "$ABR_MONO" ] && ! hasOpt "${AOPTS}" channels ] && echo '--channels 1')
+		$(hasOpt "${AOPTS}" audioquality || echo "--audioquality $OGG_AQUALITY")
+		$(hasOpt "${AOPTS}" audiostream || echo '--audiostream 1')
+	)
+
+	startReply
+	exec 3<&0
+	echo "$OGG" --format ts \
+		${OGGOPTS[*]} \
+		${WIDTH:+--width $WIDTH --height $(($WIDTH * 3 / 4 / 8 * 8))} \
+                --title "VDR Streamdev: ${REMUX_CHANNEL_NAME}" \
+                --output "$FIFO" -- - 0<&3 >&2
+	"$OGG" --format ts \
+		${OGGOPTS[*]} \
+		${WIDTH:+--width $WIDTH --height $(($WIDTH * 3 / 4 / 8 * 8))} \
+                --title "VDR Streamdev: ${REMUX_CHANNEL_NAME}" \
+                --output "$FIFO" -- - 0<&3 >/dev/null &
+}
+
+function error
+{
+	if [ "$SERVER_PROTOCOL" = HTTP ]; then
+		echo -ne "Content-type: text/plain\r\n"
+		echo -ne '\r\n'
+		echo "$*"
+	fi
+
+	echo "$*" >&2
+	exit 1
+}
+
+function startReply
+{
+	if [ "$SERVER_PROTOCOL" = HTTP ]; then
+		# send content-type and custom headers
+		echo -ne "Content-type: ${CONTENTTYPE}\r\n"
+		for header in "${HEADER[@]}"; do echo -ne "$header\r\n"; done
+		echo -ne '\r\n'
+
+		# abort after headers
+		[ "$REQUEST_METHOD" = HEAD ] && exit 0
+	fi
+
+	# create FIFO and read from it in the background
+	mkfifo "$FIFO"
+	trap "trap '' EXIT HUP INT TERM ABRT PIPE CHLD; kill -INT 0; sleep 1; fuser -k '$FIFO'; rm '$FIFO'" EXIT HUP INT TERM ABRT PIPE CHLD
+	cat "$FIFO" <&- &
+}
+
+HEADER=()
+
+[ "$LOGGER" ] && exec 2> >($LOGGER -t "vdr: [$$] ${0##*/}" 2>&-)
+
+# set default content-types
+case "$REMUX_VPID" in
+	''|0|1) CONTENTTYPE='audio/mpeg';;
+	*)      CONTENTTYPE='video/mpeg';;
+esac
+
+QUALITY=${REMUX_PARAM_QUALITY:-$QUALITY}
+case "$QUALITY" in
+	DSL1000|dsl1000)   VBR=96;   ABR=16;  WIDTH=160;;
+	DSL2000|dsl2000)   VBR=128;  ABR=16;  WIDTH=160;;
+	DSL3000|dsl3000)   VBR=256;  ABR=16;  WIDTH=320;;
+	DSL6000|dsl6000)   VBR=378;  ABR=32;  WIDTH=320;;
+	DSL16000|dsl16000) VBR=512;  ABR=32;  WIDTH=480;;
+	WLAN11|wlan11)     VBR=768;  ABR=64;  WIDTH=640;;
+	WLAN54|wlan54)     VBR=2048; ABR=128; WIDTH=;;
+	LAN10|lan10)       VBR=4096; ABR=;    WIDTH=;;
+	*)                 error "Unknown quality '$QUALITY'";;
+esac
+ABR=${REMUX_PARAM_ABR:-$ABR}
+VBR=${REMUX_PARAM_VBR:-$VBR}
+WIDTH=${REMUX_PARAM_WIDTH:-$WIDTH}
+PROG=${REMUX_PARAM_PROG:-$PROG}
+
+case "$PROG" in
+	cat)      remux_cat;;
+	mencoder) remux_mencoder;;
+	ogg)      remux_ogg;;
+	*)        error "Unknown remuxer '$PROG'";;
+esac
+
+set -o monitor
+wait