[MPlayer-DOCS] Re: Suggested correction in documentation (DVD compliant MPEG-2)

[Guillaume POIRIER]

Hi,

On 12/11/06, Giacomo Comes <comes at naic.edu> wrote:
> On Mon, Dec 11, 2006 at 04:40:58PM +0100, Guillaume POIRIER wrote:
> > Hi,
> >
> > On 12/2/06, Diego Biurrun <diego at biurrun.de> wrote:
> > >On Tue, Nov 28, 2006 at 08:09:15PM +0100, Reimar Döffinger wrote:
> > >> On Tue, Nov 28, 2006 at 07:47:12PM +0100, Diego Biurrun wrote:
> > >> > On Sun, Nov 26, 2006 at 03:36:24AM +0200, Eli Billauer wrote:
> > >> > >
> > >> > > I would suggest to update the page at
> > >> > >
> > >> > > http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-vcd-dvd.html
> > >> > >
> > >> > > so it states that vstrict=1 should be used for creating DVDs. Without
> > >> > > this option, mencoder creates a stream which makes problem with some
> > >(or
> > >> > > all?) standalone DVD players.
> > >>
> > >> vstrict=0 seems to be enough, though vstrict=1 probably won't hurt.
> > >
> > >Where are the MEncoder docs maintainers to fix this? :)
> >
> > where ARE they? There's only me listed as a maintainer of this part of
> > the docs! ;-)
> >
> > Attached patch adds vstrict wherever it seems to be needed, please
> > re-read in case I have missed smth, and also to fix my broken English.
> >
>
> vstrict=1 is not necessary (altought allowed). vstrict=0 is enough.

Ok, fixed.

>
>
> > Index: DOCS/xml/en/encoding-guide.xml
> > ===================================================================
> > --- DOCS/xml/en/encoding-guide.xml    (revision 21592)
> > +++ DOCS/xml/en/encoding-guide.xml    (working copy)
> > @@ -4645,6 +4645,13 @@
> >    use vbitrate=9800, but be warned that this could constrain you to less
> >    than an hour of video on a single-layer DVD.
> >  </para></listitem>
> > +<listitem><para>
> > +  <emphasis role="bold">vtrict</emphasis>:
> > +  <option>vstrict</option>=1 should be used to create DVDs.
> > +  Without this option, <application>MEncoder</application> creates a
> > +  stream that cannot be decoded by most, if not all, standalone DVD
>
> I would say:
>      stream that cannot be correctly decoded by some standalone DVD

Ok, fixed.

New version if attached.

Guillaume

-- 
An association of men who will not quarrel with one another is a thing
which has never yet existed, from the greatest confederacy of nations
down to a town meeting or a vestry.
 -- Thomas Jefferson
(when interviewed about MPlayer ML flamewars)
http://www.brainyquote.com/quotes/quotes/t/thomasjeff157207.html
-------------- next part --------------
Index: DOCS/xml/en/encoding-guide.xml
===================================================================
--- DOCS/xml/en/encoding-guide.xml	(revision 21592)
+++ DOCS/xml/en/encoding-guide.xml	(working copy)
@@ -4645,6 +4645,13 @@
   use vbitrate=9800, but be warned that this could constrain you to less
   than an hour of video on a single-layer DVD.
 </para></listitem>
+<listitem><para>
+  <emphasis role="bold">vtrict</emphasis>:
+  <option>vstrict</option>=0 should be used to create DVDs.
+  Without this option, <application>MEncoder</application> creates a
+  stream that cannot be correctly decoded by some standalone DVD
+  players.
+</para></listitem>
 </itemizedlist>
 </sect3>
 
@@ -4676,7 +4683,7 @@
 DVD:
 <screen>
 -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:\
-keyint=15:acodec=ac3
+keyint=15:vstrict=0:acodec=ac3
 </screen>
 </para>
 </sect3>
@@ -4702,7 +4709,7 @@
 <screen>
 -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=8000:\
 keyint=15:trell:mbd=2:precmp=2:subcmp=2:cmp=2:dia=-10:predia=-10:cbp:mv0:\
-vqmin=1:lmin=1:dc=10
+vqmin=1:lmin=1:dc=10:vstrict=0
 </screen>
 </para>
 </sect3>
@@ -4791,7 +4798,7 @@
 mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd:tsaf \
   -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \
   -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:\
-keyint=15:acodec=ac3:abitrate=192:aspect=16/9 -ofps 25 \
+keyint=15:vstrict=0:acodec=ac3:abitrate=192:aspect=16/9 -ofps 25 \
   -o <replaceable>movie.mpg</replaceable> <replaceable>movie.avi</replaceable>
 </screen>
 </para>
@@ -4806,7 +4813,7 @@
 mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd:tsaf \
   -vf scale=720:480,harddup -srate 48000 -af lavcresample=48000 \
   -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:\
-keyint=18:acodec=ac3:abitrate=192:aspect=16/9 -ofps 30000/1001 \
+keyint=18:vstrict=0:acodec=ac3:abitrate=192:aspect=16/9 -ofps 30000/1001 \
   -o <replaceable>movie.mpg</replaceable> <replaceable>movie.avi</replaceable>
 </screen>
 </para>
@@ -4822,7 +4829,7 @@
 mencoder -oac copy -ovc lavc -of mpeg -mpegopts format=dvd:tsaf \
   -vf scale=720:576,harddup -ofps 25 \
   -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:vbitrate=5000:\
-keyint=15:aspect=16/9 -o <replaceable>movie.mpg</replaceable> <replaceable>movie.avi</replaceable>
+keyint=15:vstrict=0:aspect=16/9 -o <replaceable>movie.mpg</replaceable> <replaceable>movie.avi</replaceable>
 </screen>
 </para>
 </sect3>
@@ -4836,7 +4843,7 @@
 <screen>
 mencoder -oac copy -ovc lavc -of mpeg -mpegopts format=dvd:tsaf:telecine \
   -vf scale=720:480,harddup -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:\
-  vrc_maxrate=9800:vbitrate=5000:keyint=15:aspect=16/9 -ofps 24000/1001 \
+  vrc_maxrate=9800:vbitrate=5000:keyint=15:vstrict=0:aspect=16/9 -ofps 24000/1001 \
   -o <replaceable>movie.mpg</replaceable> <replaceable>movie.avi</replaceable>
 </screen>
 </para>