[MEncoder-users] High bitrate mpeg2 encoding problem

[Reimar Döffinger]

Hello,
On Mon, Sep 03, 2007 at 11:23:52AM +0200, Simon Oualid wrote:
> Many thanks for your answer.
> 
> > Are you sure your source has sufficient quality for 15 Mbps? (non-HD
> > resolutions sure wouldn't be).
> > And the output is unreadable with what?
> 
> My source is 30Mbps mpeg2 SD content (from a matrox capture card), and I
> cannot play the output with mplayer (rc1), vlc (0.8.6c), neither Elecard
> mpeg-2 DS filters. Each time I got the audio but no video output, I am
> retrying with these new options.

rc1 is quite old...

> I reencode this content before transfering it to match our 15Mbps bandwidth.
> What bitrate would you advise for high quality SD content ?

Try what you get with vqscale=2. Going above this is not possible unless
you also specify lmin.

> > Not sure they create ps files without extra options.
> 
> I'll add these options (-of mpeg -mpegopts ...) once I'll get a proper
> encoding (I am actually reencoding the content within mbd=2 and 2 pass
> encoding since I do not need speed). What vrc_maxrate, vrc_minrate, and
> vrc_bufsize do you  advise for mpeg-ps muxing ?

That depends on the limitations of your target application. Since I do
not know your target I can't tell you.

Greetings,
Reimar Döffinger

P.S.: Your mails have a reply-to set that is not a working address...