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Re: [MPlayer-users] Re: second pass producing the same file as first pas

To: mplayer-users@xxxxxxxxxxxxxx
Subject: Re: [MPlayer-users] Re: second pass producing the same file as first pass with avcodec, why ?
From: Arpi <arpi@xxxxxxxxxxxxx>
Date: Mon Apr 15 15:43:02 2002
In-reply-to: <20020415090008.B67543@diabolic-cow.chatgris.net> 
Hi,

> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> On Mon, Apr 15, 2002 at 05:27:28AM +0200, Rémi Guyomarch wrote:
> > 
> > It seems the second pass in a 2 pass encoding session with avcodec
> > produce the exact same output file (down to the byte level) than the
> > first one.
> > Is there some lack of support for 2 pass encoding in avcodec or is it
> > a bug ? Is it a DivX4/XviD-only feature ? Am I a fool ? :-)
> > 
> > PS: tested with latest cvs of both mplayer/mencoder and ffmpeg's
> > libavcodec.
> 
> It seems the one-liner below helps a lot ...
> 
> Without that, MPV_encode_picture() ignored optimized quantizers given
> by the second pass optimizer (divx4_vbr.c in the case of mencoder).

it was bug in mencoder, it set qscale flag after initialization...
fixed


A'rpi / Astral & ESP-team

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Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu
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