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--- computers:media:encoding:start [2008/05/16 15:00] – david
+++ computers:media:encoding:start [2011/05/26 16:45] (current) – david
@@ Line 1: / Line 1: @@
+====== Audio ======
-====== h264 ======
+===== flac to mp3 =====
+Conversion of **flac** files to **mp3** files in linux can be done with this shell script I found here online:  [[http://lglinux.blogspot.com/2007/09/convert-flac-to-mp3.html]]
+Example Usage:
+<code>
+cd /to/where/you/have/flac/files
+nice -n 19 flac2mp3.sh /tmp/mp3 standard
+</code>
+**Requires:**  lame, flac, id3v2
+<code bash>
+flac2mp3.sh:
+#!/bin/bash
+DESTDIR=$1
+PRESET=$2
+if test "x$PRESET" = "x"; then
+PRESET=standard
+fi
+if test "x$DESTDIR" = "x"; then
+DESTDIR=.
+else
+mkdir -p "$DESTDIR"
+fi
+echo
+echo "Preset=$PRESET Destination=$DESTDIR Source=`pwd`"
+echo
+for a in *.flac
+do
+OUTF=`echo "$a" | sed s/\.flac/.mp3/g`
+echo
+echo "Source=`pwd`/$a Destination=$DESTDIR/$OUTF"
+echo
+ARTIST=`metaflac "$a" --show-tag=ARTIST | sed s/.*=//g`
+TITLE=`metaflac "$a" --show-tag=TITLE | sed s/.*=//g`
+ALBUM=`metaflac "$a" --show-tag=ALBUM | sed s/.*=//g`
+GENRE=`metaflac "$a" --show-tag=GENRE | sed s/.*=//g`
+TRACKNUMBER=`metaflac "$a" --show-tag=TRACKNUMBER | sed s/.*=//g`
+YEAR=`metaflac "$a" --show-tag=DATE | sed s/.*=//g | cut -b -4`
+echo
+echo "Launching: flac -c -d $a | lame --preset $PRESET - $DESTDIR/$OUTF"
+echo
+flac -c -d "$a" | lame --preset $PRESET - "$DESTDIR/$OUTF"
+echo
+echo "Setting id3 ($TITLE, $TRACKNUMBER, $ARTIST, $ALBUM, $GENRE, $YEAR)"
+echo
+if test "x$TITLE" != "x"; then
+id3v2 -t "$TITLE" "$DESTDIR/$OUTF" > /dev/null
+fi
+if test "x$TRACKNUMBER" != "x"; then
+id3v2 -T "$TRACKNUMBER" "$DESTDIR/$OUTF" > /dev/null
+fi
+if test "x$ARTIST" != "x"; then
+id3v2 -a "$ARTIST" "$DESTDIR/$OUTF" > /dev/null
+fi
+if test "x$ALBUM" != "x"; then
+id3v2 -A "$ALBUM" "$DESTDIR/$OUTF" > /dev/null
+fi
+if test "x$GENRE" != "x"; then
+id3v2 -g "$GENRE" "$DESTDIR/$OUTF"
+fi
+if test "x$YEAR" != "x"; then
+id3v2 -y "$YEAR" "$DESTDIR/$OUTF"
+fi
+done
+</code>
+====== Video ======
+===== h264 =====
 h264 seems to be the new kid on the block.  Here is a GUI for a command line encoder you're probably going to end up using (-8
@@ Line 19: / Line 108: @@
   * [[http://forum.doom9.org/showthread.php?t=136007| (.96 BETA - has 'PCH' profile)]]
-====== Mythtv to DVD ======
+===== Mythtv to AVI =====
+Well, I've not had too much success with Mythtv's built in transcoding, probably due to a bad setup on my part.  I have found that if I use the "Super" encoder on the raw .MPG file recordings, it does a very nice job of crunching down (especially cartoons for the kids) the files from their original HD size to something manageable for archive.
+  - First thing to do is make symbolic links to the recordings so I can copy them all properly named in human readable format.  I am using these two things for that:
+    - [[http://www.mythtv.org/wiki/Mythname.pl|Mythname.pl]] (which I put in **~/bin/mythname.pl**) to give us a command line program that can interogate the data base to find the name of the recording.
+    - This little bash script that will make symbolic links right where you are <code bash>
+#!/bin/bash
+for filename in /var/lib/mythtv/recordings/*.mpg
+do
+  # windows did not like the colons in the name, so changing to underscores and periods
+  fname=`mythname.pl --rep=. --subtitle $filename | tr : _ | tr ';.' .`.mpg
+  echo "Linking $filename to $fname"
+  ln -s $filename $fname
+done
+exit 0
+</code>
+  - Download everything to your PC with "Super" on it
+  - Use this ({{:computers:media:encoding:super_transcodearthursettings.png?64|}}) configuration for transcoding
+  - Dump all the files into SUPER and wait a very long time!
+===== Mythtv to DVD =====
 Looks like [[http://fixounet.free.fr/avidemux/|avidemux2]] might be the program you want to try.
-====== nsv ======
+===== nsv =====
 Russ emailed me a set of instructions on how to encode video for the mst3k stream, so I posted it:  [[computers:media:encoding:nsv:mst3k128kstream:|MST3k encoding for 128k stream]]