Opened 12 years ago

Last modified 8 years ago

#657 new defect

lavcopt vrc_maxrate has no effect

Reported by: shelikoff@… Owned by: reimar
Priority: normal Component: ve
Version: 1.0rc1 Severity: normal
Keywords: Cc:
Blocked By: Blocking:
Reproduced by developer: Analyzed by developer:


Setting vrc_maxrate=9800 for a DVD does not limit the bitrate in the output file
to 9800kbs. Even if the vbitrate is as low as 6000kbps, the max bitrate can
spike higher than 9800. For a 2 pass encode, the problem is much worse and
bitrate spikes will exceed 9800 by much further than a single pass encode for
the same vbitrate.

Change History (3)

comment:1 Changed 12 years ago by shelikoff@…

You may be able to disregard this. I had a batch file pointing to an older
version of mencoder. Still testing with the latest version to see if it
exhibits the problem.

comment:2 Changed 12 years ago by shelikoff@…

Ok, the latest version does exhibit the problem. Both in 1 pass and 2 pass,
VRC_MACXRATE is ignored. Here's the version:

MEncoder 1.0rc1-3.4.2 (C) 2000-2006 MPlayer Team
CPU: Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz (Family: 6, Model: 15, Step
ping: 6)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled with runtime CPU detection.

comment:3 Changed 8 years ago by compn

  • Owner changed from r_togni@… to reimar
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