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• Theora

   1 #!/bin/sh
   2 # Theora encoder -- encodes any video file playable by mplayer to Theora
   3 # (c) 2003 Ark Linux, written by Bernhard Rosenkraenzer <bero at arklinux.org>
   4 #
   5 # Released under the GNU GPL v2 or if, and only if, the GPL v2 is ruled
   6 # invalid in a court of law, any subsequent version of the GPL.
   7 #
   8 # theora-encoder [-a x] [-A x] [-v x] [-V x] [-o x] [-aa x] [-va x] [-aspect x] file
   9 #       -a      Set audio quality (-1 [worst] to 10 [best])
  10 #       -A      Set audio bitrate (not recommended, use -a instead)
  11 #       -v      Set video quality (0 [worst] to 10 [best])
  12 #       -V      Set video bitrate (not recommended, use -v instead)
  13 #       -o      Set output filename
  14 #       -aa     Pass an argument to the audio decoder [mplayer] unchanged
  15 #       -va     Pass an argument to the video decoder [mplayer] unchanged
  16 #               (e.g. to use mplayer's deinterlacer:
  17 #               theora-encoder -o test.ogg -va -vop -va pp=lb test.avi
  18 #       -aspect Set the aspect ratio of the input file (usually 
  19 #               autodetected)
  20 #       file    input file name
  21 #
  22 ARGS=""
  23 AUDIO=""
  24 VIDEO=""
  25 while [ "`echo $1 |cut -b1`" = "-" ]; do
  26         case $1 in
  27         -a|--audio-quality)
  28                 shift
  29                 ARGS="$ARGS -a $1"
  30                 ;;
  31         -A|--audio-bitrate)
  32                 shift
  33                 ARGS="$ARGS -A $1"
  34                 ;;
  35         -v|--video-quality)
  36                 shift
  37                 ARGS="$ARGS -v $1"
  38                 ;;
  39         -V|--video-bitrate)
  40                 shift
  41                 ARGS="$ARGS -V $1"
  42                 ;;
  43         -o|--output)
  44                 shift
  45                 DEST="$1"
  46                 if [ "`echo $DEST |cut -b1`" != "/" ]; then
  47                         DEST="`pwd`/$DEST"
  48                 fi
  49                 DEST="\"$DEST\""
  50                 ARGS="$ARGS -o $DEST"
  51                 ;;
  52         -aa|--audio-arg)
  53                 # Pass an argument to the audio decoder
  54                 shift
  55                 AUDIO="$AUDIO \"$1\""
  56                 ;;
  57         -va|--video-arg)
  58                 # Pass an argument to the video decoder
  59                 shift
  60                 VIDEO="$VIDEO \"$1\""
  61                 ;;
  62         -aspect)
  63                 # Aspect ratio of input file
  64                 shift
  65                 VIDEO="$VIDEO -aspect \"$1\""
  66                 ;;
  67         *)
  68                 echo "WARNING: Unknown option $1 ignored!" >&2
  69         esac
  70         shift
  71 done
  72 if [ -z "$1" -o "$#" != "1" ]; then
  73         cat >&2 <<EOF
  74 Usage: $0 [-a audioquality|-A audiobitrate] [-v videoquality|-V videobitrate] [-o outputfile] inputfile
  75 EOF
  76         exit 1
  77 fi
  78 SRC="$1"
  79 if [ "`echo $SRC |cut -b1`" != "/" ]; then
  80         SRC="`pwd`/$SRC"
  81 fi
  82 SRC="\"$SRC\""
  83 DIR=`mktemp -d /tmp/theoraXXXXXX`
  84 cat >$DIR/run.sh <<EOF
  85 trap "rm -rf $DIR" 0 1 2 3 4 6 8 9 11 13 15
  86 cd $DIR
  87 mkfifo -m 0600 stream.yuv stream.wav
  88 mplayer -ao pcm:file=stream.wav -vo null -vc null $AUDIO $SRC &>mplayer-audio.log &
  89 mplayer -vo yuv4mpeg -ao null -nosound $VIDEO $SRC &>mplayer-video.log &
  90 theora_encoder_example $ARGS stream.wav stream.yuv
  91 rm -rf $DIR
  92 EOF
  93 chmod +x $DIR/run.sh
  94 exec $DIR/run.sh

   1 vlc foo.avi --sout-theora-quality=5 --sout-vorbis-quality=1 \
   2 --sout="#transcode{vcodec=theo,vb=800,scale=1,deinterlace=0,\
   3 acodec=vorb,ab=128,channels=2,samplerate=44100}:standard{access=file,\
   4 mux=ogg,dst='foo.ogv'}"

   1 gst-launch-0.10 filesrc location=/path/to/video/file.ext ! decodebin name=dbin dbin. ! queue ! ffmpegcolorspace ! theoraenc quality=32 ! queue ! mux. dbin. ! queue ! audioconvert ! vorbisenc quality=0.2 ! queue ! mux. oggmux name=mux ! progressreport ! filesink location=/output/path.ogv