[FFmpeg-user] FFMPEG CFR

Jarhead leeper at molalla.net
Sat Jun 4 17:01:23 CEST 2011


I am trying to get a contant frame rate, and it varies.  This is my first
time with FFMPEG, sorry if I'm not up to your level- but I am learning. 
I've got most of my problems fixed but these (that I am aware of):

I would like:
-to hold a constant frame rate of 29.97
-Format_Profile :High @ L4.1
-Format_Settings_RefFrames/String : 2 frame2
-BitDepth/String                          : 24 bit3

My Command Line:
chcp 1252
title Converting Red flash 2 & 1 AVCHD UltraQuality.mpg (1/1)
"C:\Program Files\WinFF\ffmpeg.exe" -threads 4  -i "R:\Dougs
work\2011_05_27\Red flash 2 & 1 AVCHD UltraQuality.mpg"  -deinterlace -crf
15.0 -vcodec libx264 -acodec libfaac  -ar 48000 -ab 144k -coder 1 -flags
+loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 -me_method hex
-subq 6 -me_range 16 -g 250 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71
-b_strategy 1 -threads 0 -b 750k -r 29.97  -s 1280x720  -aspect 16:9 -ac 2
-maxrate 750k -bufsize 500k -level 41 "R:\Dougs work\2011_05_27\Red flash 2
& 1 AVCHD UltraQuality.mp4"
pause

What I actually get:

General
CompleteName                     : R:\Dougs work\2011_05_27\Red flash 2 & 1
AVCHD UltraQuality to 750k 500k  crf 15.mp4
Format                           : MPEG-4
Format_Profile                   : Base Media
CodecID                          : isom
FileSize/String                  : 66.7 MiB
Duration/String                  : 10mn 26s
OverallBitRate/String            : 893 Kbps
Encoded_Application              : Lavf52.32.0

Video
ID/String                        : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format_Profile                   : Main at L4.1
Format_Settings_CABAC/String     : Yes
Format_Settings_RefFrames/String : 1 frame1
CodecID                          : avc1
CodecID/Info                     : Advanced Video Coding
Duration/String                  : 10mn 26s
BitRate_Mode/String              : VBR
BitRate/String                   : 758 Kbps
Width/String                     : 1280 pixel3
Height/String                    : 720 pixel3
DisplayAspectRatio/String        : 16:9
FrameRate_Mode/String            : VFR
FrameRate/String                 : 29.970 fps3
FrameRate_Minimum/String         : 14.985 fps3
FrameRate_Maximum/String         : 29.970 fps3
ColorSpace                       : YUV
ChromaSubsampling                : 4:2:0
BitDepth/String                  : 8 bit3
ScanType/String                  : Progressive
Bits-(Pixel*Frame)               : 0.027
StreamSize/String                : 56.6 MiB (85%)

Audio
ID/String                        : 2
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format_Version                   : Version 4
Format_Profile                   : LC
CodecID                          : 40
Duration/String                  : 10mn 26s
BitRate_Mode/String              : VBR
BitRate/String                   : 132.3 Kbps
Channel(s)/String                : 2 channel2
ChannelPositions                 : Front: L R
SamplingRate/String              : 48.0 KHz
StreamSize/String                : 9.77 MiB (15%)


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