ROBOT.LK

Posted: **Mon Apr 26, 2010 4:31 am**

UPDATED

TWO PASS ENCODING TO H264 MP4 USING FFMPEG

now batch deletes the first encode without qt faststart

can't believe how simple it was lol to add the delete function

@ ECHO OFF
REM The following will convert all avi files in the current folder into mp4 files.

IF EXIST *.avi FOR %%A IN (*.avi) DO CALL :twopass "%%A"

:twopass
D:\server\encoder\ffmpeg.exe -y -i %* -b 2M -bt 4M -vcodec libx264 -pass 1 -fpre "D:\server\encoder\ffpresets\libx264-veryfast_firstpass.ffpreset" -s 640x360 -b 1000kbps -bt 800kbps -threads 4  output.mp4
D:\server\encoder\ffmpeg.exe -y -i %* -b 2M -bt 4M -vcodec libx264 -pass 2 -fpre "D:\server\encoder\ffpresets\libx264-veryfast.ffpreset" -s 640x360 -b 1000kbps -bt 800kbps -threads 4  output.mp4


RENAME output.mp4 %*.mp4

:QT Faststart 
D:\server\encoder\qt-faststart.exe  %*.mp4 %*.qt.mp4


:GET Thumbs
D:\server\encoder\ffmpeg.exe -v 0 -y -i %* -vframes 1 -ss 5 -vcodec mjpeg -f rawvideo -s 286x160 -aspect 16:9 %*.qt_mp4.jpg

ECHO Y | DEL %*.mp4

ECHO.
GOTO :EOF

of course you will need ffmpeg and qt - faststart

ffmpeg Link ---- http://ffmpeg.arrozcru.org/builds/
qt faststart --- http://notboring.org/devblog/2009/07/qt ... r-windows/

remember to change the path to your ffmpeg and qt faststart exe

Code: Select all

C:\location of \qt-faststart.exe

almost forgot the ffmpeg preset files

Code: Select all

"D:\server\encoder\ffpresets\libx264-veryfast.ffpreset"

, also are in the ffmpeg zip inside a folder called shared, remember to also put the right path to them

that's it

example info of a encoded file

Code: Select all

General
Complete name                    : D:\server\xampp\htdocs\files\UFO Files - Alien Encounters.divx.qt.mp4
Format                           : MPEG-4
Format profile                   : Base Media
Codec ID                         : isom
File size                        : 89.4 MiB
Duration                         : 45mn 5s
Overall bit rate                 : 277 Kbps
Encoded date                     : UTC 1970-01-01 00:00:00
Tagged date                      : UTC 1970-01-01 00:00:00
Writing application              : Lavf52.61.0

Video
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : [email protected]
Format settings, CABAC           : Yes
Format settings, ReFrames        : 4 frames
Codec ID                         : avc1
Duration                         : 45mn 5s
Bit rate mode                    : Variable
Bit rate                         : 200 Kbps
Width                            : 640 pixels
Height                           : 360 pixels
Display aspect ratio             : 16/9
Frame rate mode                  : Variable
Frame rate                       : 29.970 fps
Resolution                       : 24 bits
Colorimetry                      : 4:2:0
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.029
Stream size                      : 64.5 MiB (72%)
Writing library                  : x264 core 85 r1442 781d300
Encoding settings                : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=2 / psy=1 / psy_rd=0.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=4 / sliced_threads=0 / nr=0 / decimate=1 / mbaff=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / wpredb=1 / wpredp=0 / keyint=250 / keyint_min=25 / scenecut=40 / intra_refresh=0 / rc=2pass / mbtree=0 / bitrate=200 / ratetol=1.0 / qcomp=0.60 / qpmin=10 / qpmax=51 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.41 / pb_ratio=1.25 / aq=1:1.00
Encoded date                     : UTC 1970-01-01 00:00:00
Tagged date                      : UTC 1970-01-01 00:00:00

Audio
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format version                   : Version 4
Format profile                   : LC
Format settings, SBR             : No
Codec ID                         : 40
Duration                         : 45mn 5s
Bit rate mode                    : Variable
Bit rate                         : 72.0 Kbps
Channel(s)                       : 2 channels
Channel positions                : L R
Sampling rate                    : 44.1 KHz
Resolution                       : 16 bits
Stream size                      : 22.8 MiB (26%)
Encoded date                     : UTC 1970-01-01 00:00:00
Tagged date                      : UTC 1970-01-01 00:00:00

here is my zip package everything is in there to encode videos ffmpeg,qt fast start,mencoder,mplayer, codecs etc

everything inside the zip is updated

File Size: 47.54 MB
http://www.mediafire.com/?yg1zznamdmm

Posted: **Mon Apr 26, 2010 11:04 am**

Thanks. This is extremely useful for someone who's going to do batch encoding.
Keep up the good work.

Posted: **Tue Apr 27, 2010 1:07 am**

this batch encoder has been updated, copy new one and replace old

I've added the DEL function to remove the encoded file without qt fast start so now everything should be working as normal

ROBOT.LK

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