[mythtv-users] working MP4 transcode anyone? I keep getting a error with Mythbrake

[Eric Sharkey]

On Wed, Nov 19, 2014 at 8:22 AM, Douglas Sargent <dbsargent at gmail.com> wrote:
> Hi, does anyone have a working script, that I can just copy paste?

I'm not sure exactly what you're looking for.  This is a script I use
that may suit your needs:

------
#!/bin/sh
# MythTV user job to transcode a video to something appropriate for an android
# device with a 720p screen

SCREENX=1280
SCREENY=720

FILE=$1
TITLE=$2
OUTDIR=""

OUTRES=`ffmpeg -i  ${FILE} 2>&1 | awk -v screenx=${SCREENX} -v
screeny=${SCREENY} '/Stream.*Video:/{

  match($0, /([[:digit:]]+)x([[:digit:]]+) \[SAR
([[:digit:]]+):([[:digit:]]+) DAR ([[:digit:]]+):([[:digit:]]+)\]/,a);

  inx=int(substr($0,a[1,"start"],a[1,"length"]));
  iny=int(substr($0,a[2,"start"],a[2,"length"]));
  dar=substr($0,a[5,"start"],a[5,"length"])/substr($0,a[6,"start"],a[6,"length"]);

  sar=screenx/screeny;
  if (dar>sar) {
      if (inx>screenx) {
          vx = screenx;
      } else {
          vx = inx;
      }
      vy = vx/dar;
  } else {
      if (iny>screeny) {
          vy = screeny;
      } else {
          vy = iny;
      }
      vx = vy*dar;
  }
  print vx "x" vy;
}'`
nice ffmpeg -i "${FILE}" -strict -2 -y -acodec aac -ab 160k -ac 2 -s
${OUTRES} -threads 0 -vcodec libx264 -preset slow -profile:v baseline
-level 30 -maxrate 10000000 -bufsize 10000000 -f mp4
"${OUTDIR}${TITLE}.mp4"
------

Eric