[A-100] IDX subs not working

[jsa]

(02-11-2010 09:44 AM)dimoe Wrote:  This provides a uPnP streaming server, and the mencoder script at http://sourceforge.net/projects/mediatom...ic/3546580 (slightly modified for Vobsub instead of SRT) allows to stream MKV's with embedded subtitles (for reference : 2 simultaneous 9 Mbit streams on a P4/3GHz).

Could you list the changes necessary for Vobsub please? Not being a mencoder expert, I couldn't figure it out.

Thanks.

[dimoe]

(02-11-2010 01:01 PM)jsa Wrote:  Could you list the changes necessary for Vobsub please? Not being a mencoder expert, I couldn't figure it out.

Thanks.

My pleasure.


First make sure you modify MediaTomb's /etc/mediatomb/config.xml to cope with MKV mimetypes :

Code:

...
  <map from="mkv" to="video/x-matroska"/>
...
  <transcode mimetype="video/x-matroska" using="transcode-matroska"/>
...
      <profile name="transcode-matroska" enabled="yes" type="external">
        <mimetype>video/mpeg</mimetype>
        <accept-url>yes</accept-url>
        <first-resource>yes</first-resource>
        <hide-original-resource>yes</hide-original-resource>
        <accept-ogg-theora>yes</accept-ogg-theora>
        <agent command="/etc/mediatomb/mediatomb-transcode" arguments="-i %in -o %out --transcode-matroska"/>
        <buffer size="14400000" chunk-size="512000" fill-size="120000"/>
      </profile>
...

The /etc/mediatomb/mediatomb-transcode (which is based on "Script to perform various transcoding routines" from http://mediatomb.cc/dokuwiki/transcoding:transcoding) contains the real mencoder guts :

Code:

transcode_matroska_mencoder() {
        local input="$1"
        local output="$2"
        local alang="$3"
        local slang="$4"

    [ "$alang" ] || alang="eng"
    [ "$slang" ] || slang="nld"

        mencoder "$input" \
                -oac lavc -ovc lavc \
                -of mpeg \
                -ofps 25 \
                -lavcopts vcodec=mpeg2video:keyint=15:vbitrate=9800:vrc_maxrate=9800:vrc_buf_size=1835:aco​dec=ac3:abitrate=192:autoaspect \
                -vf softskip,scale=720:576,hqdn3d,harddup \
                -mpegopts format=dvd:tsaf \
                -channels 6 \
                -vf harddup -alang "$alang" \
                            -slang "$slang" \
                -o "$output"

}

(replace the default slang with what is deemed appropriate for your locale).


Don't forget to make sure the MKV's are tagged with the mkv mimetype in MediaTomb's web interface.


All this is quite nicely explained in MT's documentation & wiki.

[cheaper_popcorn]

(02-11-2010 12:12 PM)dimoe Wrote:  Hence my gut feeling that Syabas' SUB spu code wreaks havoc, and my suggestion to have a good look at MPlayer's or VLC's (GPL-ed) VobSub code.

Next week (workload permitting), I could provide some 5-minute samples (I guess providing a sample qualifies for complying with Fair Use practices), but this strikes me as useless, as long as Syabas does not confirm they are looking into this issue. As said before, I am willing to test beta firmwares.

Thanks for being constructive. I'll ask and see what reply we get.

[dimoe]

(02-11-2010 05:25 PM)cheaper_popcorn Wrote:  Thanks for being constructive. I'll ask and see what reply we get.

Ping?

[obvious]

bumpety