[Ffmpeg-devel] MPEG2 Encoder Quantization Minimum

Måns Rullgård mru
Mon Sep 12 08:12:42 CEST 2005

Zhang Jian Feng said:
> Hello,
> I'm using ffmpeg release 0.4.9-pre1

Don't.  Always use latest CVS.

> Is there a reason the minimum quantization for MPEG2 encoding is kept at a
> minimum of 2?

Is it?

> I'm doing some very high-bitrate encodes and realize that quantization
> level of 1 works fine if changed in libavcodec/utils.c [patch below].
> It seems to give better results for very high bitrate streams.

No patch needed.  Just use -qmin 1 on the command line.

M?ns Rullg?rd
mru at mru.ath.cx

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