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videotilvalgene er:
videotilvalgene er:


audio options are
lystilvalgene er:
-acodec codec      force audio codec ('copy' to copy stream)
-ab bitrate            set bitrate (in bits/s)
-ar rate                  set audio sampling rate (in Hz)


The AVCodecContext AVOptions include:
The AVCodecContext AVOptions include:

Revision as of 07:38, 24 November 2012

Renderingsprofil-prametre - Hvordan man læser dem

De parametre, som bruges i renderingsprofiler kommer fra programmet ffmpeg.

Dette er et gennemarbejdet eksempel som viser, hvordan du kan forstå hvad disse parametre betyder ved hjælp af ffmpegs dokumentation.

I eksemplet ovenfor er parametrene:

f=dvd 
vcodec=mpeg2video 
acodec=mp2  
b=5000k 
maxrate=8000k 
minrate=0 
bufsize=1835008 
mux_packet_s=2048 
mux_rate=10080000 
ab=192k 
ar=48000 
s=720x576 
g=15 
me_range=63 
trellis=1 
profile=dv_pal_wide 
pass=2

Søger du i ffmpegs hjælpesider så ser du at:

et vigtigt tilvalg er

videotilvalgene er:

lystilvalgene er:

The AVCodecContext AVOptions include:

-b                 <int>   E.V.. set bitrate (in bits/s)
-maxrate      <int>   E.V.. set max video bitrate tolerance (in bits/s)
-minrate       <int>   E.V.. set min video bitrate tolerance (in bits/s)
-g                 <int>   E.V.. set the group of picture size

So all the render profile options are documented here in the ffmpeg documentation.