[MPlayer-users] vbitrate option doesn't affect filesize

[Jaap Struyk]

Op di 25-05-2004, om 18:14 schreef Nico Sabbi:

> is the average bitrate above or below the value you specified in vbitrate?
> The log is the full output on the terminal of your run of mencoder.

MEncoder 1.0pre4-3.2.3 (C) 2000-2004 MPlayer Team

CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred 2006 MHz (Family:
6, Stepping: 1)
Detected cache-line size is 64 bytes
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled for x86 CPU with extensions: MMX MMX2 3DNow 3DNowEx SSE

Reading /home/japie/.mplayer/codecs.conf: 60 audio & 156 video codecs
Reading config file /home/japie/.mplayer/mencoder
font: can't open file: /home/japie/.mplayer/font/font.desc
font: can't open file: /usr/share/mplayer/font/font.desc
success: format: 0  data: 0x0 - 0x2BBD0800
AVI file format detected.
VIDEO:  [DX50]  576x304  24bpp  23,976 fps  988,8 kbps (120,7 kbyte/s)
[V] filefmt:3  fourcc:0x30355844  size:576x304  fps:23,98  ftime:=0,0417
input fps will be interpreted as 23,98 instead
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
MP3lib: init layer2&3 finished, tables done
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 10000->192000 (80,0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
Opening video filter: [expand osd=1]
Expand: -1 x -1, -1 ; -1  (-1=autodetect) osd: 1
Opening video filter: [eq2=1.0:1.0:0.0:1.0]
Opening video filter: [scale w=352 h=240]
Opening video filter: [expand w=352 h=240]
Expand: 352 x 240, -1 ; -1  (-1=autodetect) osd: 0
Opening video filter: [scale w=352 h=220]
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffodivx] vfm:ffmpeg (FFmpeg MPEG-4)
==========================================================================
Building audio filter chain for 48000Hz/2ch/16bit ->
44100Hz/2ch/16bit...
Writing AVI header...
VDec: vo config request - 576 x 304 (preferred csp: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is 1,89:1 - prescaling to correct movie aspect.
SwScaler: reducing / aligning filtersize 8 -> 8
SwScaler: reducing / aligning filtersize 5 -> 4
SwScaler: reducing / aligning filtersize 7 -> 6
SwScaler: reducing / aligning filtersize 5 -> 4

SwScaler: BICUBIC scaler, from Planar YV12 to Planar 444P using MMX2
videocodec: libavcodec (352x240 fourcc=3167706d [mpg1])
High quality encoding selected (non real time)!
Unknown block type, possibly non-MPEG stream!
Pos:   0,0s      1f ( 0%)   0fps Trem:   0min   0mb  A-V:0,000 [0:0]
Unknown block type, possibly non-MPEG stream!
Pos:   0,1s      2f ( 0%)   0fps Trem:   0min   0mb  A-V:0,004 [0:0]
Unknown block type, possibly non-MPEG stream!
Pos:   0,1s      3f ( 0%)   0fps Trem:   0min   0mb  A-V:0,008 [0:0]

snip/snap

Pos: 502,0s  12038f ( 8%) 105fps Trem:  19min 400mb  A-V:0,014 [478:112]
Writing AVI index...
Fixing AVI header...

Video stream:  478,815 kbit/s  (59851 bps)  size: 30048248 bytes 
502,044 secs  12038 frames

Audio stream:  112,000 kbit/s  (14000 bps)  size: 7033783 bytes  502,413
secs

This was encoded with vbitrate=800, when I use vbitrate=3000 the
resulting file is almost the same, a slightly higher average bitrate
(497 kbit/s) resulting in a 15Mb. bigger file on a total of 500Mb.
-- 
Groetjes Japie