[ale] using mplayer to convert

[james at sumners.ath.cx]

While doing some research for my own encoding project I came across
this:

7.2 Encoding to MPEG format

MEncoder can create MPEG (MPEG-PS) format output files. It's probably
useful only with libavcodec's mpeg1video codec, because players - except
MPlayer - expect MPEG1 video, and MPEG1 layer 2 (MP2) audio streams in
MPEG files.

This feature is not very useful right now, aside that it probably has
many bugs, but the more importantly because MEncoder currently cannot
encode MPEG1 layer 2 (MP2) audio, which all other players expect in MPEG
files.

To change MEncoder's output file format, use the -of mpeg option.

Example:
  mencoder -of mpeg -ovc lavc -lavcopts vcodec=mpeg1video -oac copy
  <other options> media.avi -o output.mpg


Read http://www.mplayerhq.hu/DOCS/encoding.html for more info.

On Mon, Jun 30, 2003 at 01:28:24PM -0400, Christopher Fowler wrote:
> Here is one site that I found:
> 
> http://www.icdia.org/cdprosupport/encoding/pink/mpeg1_specs.htm
> 
> On Mon, Jun 30, 2003 at 01:24:12PM -0400, james at sumners.ath.cx wrote:
> > As I said, you are going to need to specify mpeg1 compliant bitrates to
> > get a valid file. I do not know them off the top of my head. You may
> > want to look at http://www.vcdhelp.com for that information. The
> > arguments I supplied in my previous email were just to get you going in
> > the right direction.
> > 
> > On Mon, Jun 30, 2003 at 01:14:26PM -0400, Christopher Fowler wrote:
> > > I've got the file converted using th command line arguments.
> > > 
> > > Adaptec VCD creator stated the format was not valid for VCD.  Is
> > > there a command line option that will make it VCD compatible.
> > > I thought mpeg1 was VCD.
> > > 
> > > Chris
> > > 
> > > On Mon, Jun 30, 2003 at 11:42:47AM -0400, james at sumners.ath.cx wrote:
> > > > mencoder -o burn.mpg -ovc lavc -oac pcm -lavcopts vcodec=mpeg1video
> > > > input.wmv
> > > > 
> > > > That _might_ give you a compatible video. You would be better off
> > > > specifying the output bitrates and such. See 'man mencoder'.
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