[mythtv-users] Mythtube: Internet Video on Demand

Wed Nov 8 03:30:57 UTC 2006

say, could you email me these files as attachments, gmail and my other email
clients both wrapped the lines and I can't seem to get them to work.
at least the flashtranscode file.

On 11/4/06, Jeff volckaert <jvolckaert at gmail.com> wrote:
>
> Hello Everybody,
>
> I have created a userjob and webpage to play Myth videos in a browser
> over the internet.  I call it MythTube.  It's very simple to setup and
> plays video great.  Each flash video is about 80M for an hour long
> show (minus commercials).  It consists of a php page, a transcode
> script, and a flash player.  I run the transcode job after the remove
> commercials script from the Wiki.  The remove commercials may be
> important as I saw comments about B-Frames being a problem with
> mencoder.  I believe lossless transcoding removes any B-Frames.
>
> To setup Mythtube, first create a directory under your webserver
> called mythtube.  Mine was "/data/www/html/mythtube".  You will need
> to change any references below to whatever your directory is.
>
> Next, get flvplayer.swf.  Download
> http://www.jeroenwijering.com/upload/flash_flv_player.zip and move
> flash_flv_player/extras/flvplayer.swf into your mythtube directory
> under your webserver.
>
> Then create "play.php" and put it in the mythtube directory as well.
> Here's play.php:
> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 TRANSITIONAL//EN">
> <html>
> <head>
>     <title>Welcome to MythTube!</title>
> </head>
>         <body bgcolor="#002650">
> <h3>Now playing: <?php echo $_GET["movie"]; ?></h3>
> <br>
> <div style="text-align: center;">
> <object type="application/x-shockwave-flash" width="<?php echo
> $_GET["h"]; ?>" height="<?php echo $_GET["w"]; ?>"
> wmode="transparent" data="flvplayer.swf?file=<?php echo $_GET["movie"];
> ?>">
> <param name="movie" value="flvplayer.swf?file=<?php echo $_GET["movie"];
> ?>" />
> <param name="wmode" value="transparent" />
> </object>
> </div>
> <br>
> <h3>Videos:</h3>
> <table border="1">
> <?php
> $files = scandir("/data/www/html/mythtube");
> // filter for only .flv files
> $movies = array();
> foreach($files as $file) {
>    if(substr($file,-4) == ".flv") {
>         echo "<tr><td>".$file."</td>";
>         echo "<td><a
> href=\"".$PHP_SELF."?movie=".$file."&h=640&w=480\">Large</a></td>";
>         echo "<td><a
> href=\"".$PHP_SELF."?movie=".$file."&h=360&w=240\">Small</a></td></tr>";
>        $movies[] = $file;
>    }
> }
> ?>
> </table>
> </body>
> </html>
>
>
> Next you need to create the userjob which generates the flv files.
>
> Here's the MYSQL commands I used in creating userjob 3:
> use mythconverg;
>
> UPDATE settings SET data='/usr/local/bin/flashtranscode %DIR% %FILE%
> "%TITLE%" %STARTTIME%' WHERE value='UserJob3';
>
> UPDATE settings SET data='Flash Transcode' WHERE value='UserJobDesc3';
>
> UPDATE settings SET data='1' WHERE value='JobAllowUserJob3';
>
>
>
> Here's the /usr/local/bin/flashtranscode script:
> #!/bin/sh
> # flashtranscode
> #
> # created by Jeff Volckaert (inspired by Zach White)
> # modified 11/03/06 to use Flash
> VIDEODIR=$1
> FILENAME=$2
> TITLE=$3
> # Remove non-alpha characters from TITLE
> TITLE=${TITLE//[^a-zA-Z0-9]/}
> STARTTIME=$4
>
> # Sanity checking, to make sure everything is in order.
> if [ -z "$VIDEODIR" -o -z "$FILENAME" ]; then
>         echo "Usage: $0 <VideoDirectory> <FileName> "<Title>" <Starttime>"
>         exit 5
> fi
> if [ ! -f $VIDEODIR/$FILENAME ]; then
>         echo "File does not exist: $VIDEODIR/$FILENAME"
>         exit 6
> fi
>
> # Transcode the file
>
> mencoder -ofps 12 -of lavf -lavfopts
> i_certify_that_my_video_stream_does_not_use_b_frames -oac lavc
> -lavcopts acodec=mp3:abitrate=32 -channels 1 -srate 22050  -ovc lavc
> -lavcopts
> vcodec=flv:vbitrate=200:cbp:mv0:mbd=2:trell:v4mv:predia=2:dia=2:last_pred=3
> -vop spp,scale=360:240,harddup -o
> /data/www/html/mythtube/$TITLE-$STARTTIME.flv $VIDEODIR/$FILENAME
>
> # For a smaller file use this instead.
> # (It take three times longer to encode though)
> # mencoder -ofps 12 -of lavf -lavfopts
> i_certify_that_my_video_stream_does_not_use_b_frames -oac lavc
> -lavcopts acodec=mp3:abitrate=32 -channels 1 -srate 22050  -ovc lavc
> -lavcopts
> vcodec=flv:vbitrate=100:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:vmax_b_frames=0:vb_strategy=1:precmp=2:cmp=2:subcmp=2:preme=2:qns=2
> -vop spp,scale=320:240 -o
> /data/www/html/mythtube/$TITLE-$STARTTIME-2.flv $VIDEODIR/$FILENAME
>
> # Uncomment this if you want to insert MetaData tags into the file
> # /usr/bin/flvtool2/flvtool2 -U
> /data/www/html/mythtube/$TITLE-$STARTTIME.flv
>
> ERROR=$?
> if [ $ERROR -ne 0 ]; then
>         echo "Transcoding failed for ${FILENAME} with error $ERROR"
>         exit 3
> fi
>
>
> After at least one file has been transcoded you can pull up the
> play.php page and start watching video.
>
> Enjoy,
> Jeff
> _______________________________________________
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>
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