diff options
Diffstat (limited to 'DOCS')
| -rw-r--r-- | DOCS/xml/en/encoding-guide.xml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/DOCS/xml/en/encoding-guide.xml b/DOCS/xml/en/encoding-guide.xml index 79140bd3ba..64bf56e2b7 100644 --- a/DOCS/xml/en/encoding-guide.xml +++ b/DOCS/xml/en/encoding-guide.xml @@ -4214,6 +4214,23 @@ codec</title> </sect3> +<sect3 id="menc-feat-vcd-dvd-a-v-sync"> +<title>Maintaining A/V sync</title> +<para> + In order to maintain audio/video synchronization throughout the encode, + <application>MEncoder</application> has to drop or duplicate frames. + This works rather well when muxing into an AVI file, but is almost + guaranteed to fail to maintain A/V sync with other muxers such as MPEG. + This is why it is necessary to append the + <option>harddup</option> video filter at the end of the filter chain + to avoid this kind of problem. + You can find more technical information about <option>harddup</option> + in the section + <link linkend="menc-feat-dvd-mpeg4-muxing-filter-issues">Improving muxing and A/V sync reliability</link> + or in the manual page. +</para> +</sect3> + <sect3 id="menc-feat-vcd-dvd-output-srate"> <title>Sample Rate Conversion</title> <para> |