[MPlayer-DOCS] CVS: main/DOCS/xml/en encoding-guide.xml, 1.15, 1.16

[Diego Biurrun]

On Sun, Sep 04, 2005 at 02:21:50PM +0200, Guillaume Poirier CVS wrote:
> 
> +(off course, A/V sync issues apply only if you process or copy the

of course

> +  In other words, having a soundtrack during your encode assures you that,
> +  provided you don't messages such as

do not see messages

> +  PCM with <option>-oac pcm -channels 1 -srate 4000</option>.
> +  otherwise, in some cases, it will generate a video file that won't sync

Capitalize this sentence, no short forms.

> +  Such cases are when the number of video frames in the source file do
> +  not match up to the total length of audio frames or whenever there

does not match up, number is singular

> +  However <application>MPlayer</application> cannot do that, so if you
> +  demux the AC3 and encode it with a separate app (or dump it to PCM with

AC3 audio

> +  As long as <application>MEncoder</application> sees the audio when it's

it is

> +  encoding the video, it can do this dropping/duping (which is usually ok

OK

> +  <application>MEncoder</application> can't see the audio, it will just

cannot

> +  process all frames as-is and they won't fit the final audio stream when

will not

> -  <screen>mencoder dvd://1 -nosound -ovc lavc -ofps 24000/1001</screen>
> +  <screen>mencoder dvd://1 -avc copy -ovc lavc -ofps 24000/1001</screen>
> -  <screen>mencoder dvd://1 -nosound -ovc lavc -lavcopts ildct:ilme:mbd=2</screen>
> +  <screen>mencoder dvd://1 -avc copy -ovc lavc -lavcopts ildct:ilme:mbd=2</screen>
> -  <screen>mencoder dvd://1 -nosound -vf pp=lb -ovc lavc</screen>
> +  <screen>mencoder dvd://1 -avc copy -vf pp=lb -ovc lavc</screen>
> -  <screen>mencoder dvd://1 -nosound -vf tfields=2 -ovc lavc -fps 60000/1001 -ofps 60000/1001</screen>
> +  <screen>mencoder dvd://1 -avc copy -vf tfields=2 -ovc lavc -fps 60000/1001 -ofps 60000/1001</screen>
> -  <screen>mencoder dvd://1 -nosound -vf field=0 -ovc lavc</screen>
> +  <screen>mencoder dvd://1 -avc copy -vf field=0 -ovc lavc</screen>
> -  <screen>mencoder dvd://1 -nosound -vf pullup,softskip -ovc lavc -ofps 24000/1001</screen>
> +  <screen>mencoder dvd://1 -avc copy -vf pullup,softskip -ovc lavc -ofps 24000/1001</screen>
> -  <screen>mencoder dvd://1 -nosound -vf softpulldown,ivtc=1 -ovc lavc -ofps 24000/1001</screen>
> +  <screen>mencoder dvd://1 -avc copy -vf softpulldown,ivtc=1 -ovc lavc -ofps 24000/1001</screen>

I suspect you mean -oac and not -avc, that latter option is
non-existent.

Diego