Guide AviSynth encode x264 trim splice cut commercials autocrop srt subtitle sync

[xekon]

This guide shows how to use AviSynth to encode x264, and cut out commercials in the process.

You may need to adjust the paths or rename files to reflect where you installed AviSynth, I installed AviSynth directly to my 'E:\' partition eg:
E:\AviSynth
E:\AviSynth\plugins

My batch files are directly in my AviSynth folder:
E:\AviSynth\bd.bat
E:\AviSynth\bd-go.bat

software required:

AviSynth 2.6
ffms2.dll    (put in AvisSynth plugins folder)
NicAudio.dll (put in AvisSynth plugins folder)
AutoCrop.dll (put in AvisSynth plugins folder)
ffmpeg       (E:\AviSynth\ffmpeg\bin\ffmpeg.exe)
mkvtoolnix   (E:\AviSynth\mkvtoolnix\mkvmerge.exe)
x264         (E:\AviSynth\x264.exe)
avs2pipe     (E:\AviSynth\avs2pipe.exe) http://forum.doom9.org/showthread.php?p=1527344
trimsrt      (E:\AviSynth\trimsrt.exe) http://forum.doom9.org/showthread.php?t=162828

neroAacEnc   (E:\AviSynth\neroAacEnc.exe)
*or*
qaac         (E:\AviSynth\qaac.exe)

If you choose qaac, it requires QuickTime to be installed too
There are also some codecs that are required, but if you install CCCP http://www.cccp-project.net/ it will take care of them all.


bd.bat <in-file> <fps> <audio-stream-id> <audio-channels> <out-file> <frame1A> <frame1B> <frame2A> <frame2B>
example:
bd.bat E:\yyh\BDMV\STREAM\00039.m2ts 23.976 0:2 6 004 2832 16675 16872 31270

The above line will take me from the 00039.m2ts file to a trimmed, spliced, cropped, and x264 encoded 004.mkv file with Quicktime TVBR AAC encoded audio (or neroaac), and a trim and adjusted .srt subtitle file if applicable.

to determine which audio stream you want and how many channels it has use ffmpeg (for 5.1 use 6, for stereo use 2):

E:\AviSynth\ffmpeg\bin\ffmpeg -i E:\yyh\BDMV\STREAM\00036.m2ts

bd.bat:

SET FPS=%~2
if "%~2"=="23.976" SET FPS=24000/1001
del bd.avs
echo A = RaWavSource("E:\AviSynth\job.wav")>>bd.avs
echo V = FFVideoSource("E:\AviSynth\job.mkv")>>bd.avs
echo AudioDub(V, A)>>bd.avs
if not "%~6"=="" echo AlignedSplice(Trim(%6, %7), Trim(%8, %9))>>bd.avs
echo AutoCrop(0,2,2,0,0,0,0,30,5,0,-1,0)>>bd.avs
E:\AviSynth\ffmpeg\bin\ffmpeg -i %1 -vn -sn -y -map %3 -drc_scale 0 -ac %4 -async 1 -acodec pcm_s24le -f wav job.wav
E:\AviSynth\ffmpeg\bin\ffmpeg -i %1 -an -sn -y -vcodec copy -f rawvideo job.h264
E:\AviSynth\mkvtoolnix\mkvmerge -o E:\AviSynth\job.mkv --engage keep_bitstream_ar_info --default-duration 0:%FPS%fps --compression 0:none -d 0 -A -S -T --no-global-tags --no-chapters E:\AviSynth\job.h264
E:\AviSynth\avs2pipe -wav bd.avs | qaac --tvbr 90 --quality 2 --rate keep --ignorelength - -o job.m4a
::E:\AviSynth\avs2pipe -wav bd.avs | neroAacEnc.exe -q 0.5 -ignorelength -if - -of job.m4a
E:\AviSynth\x264 --preset veryslow --crf 22.0 --ref 5 --bframes 16 --no-fast-pskip --output "jobz.mkv" "E:\AviSynth\bd.avs"
E:\AviSynth\mkvtoolnix\mkvmerge -o E:\AviSynth\%5.mkv --engage keep_bitstream_ar_info --compression 1:none -d 1 -A -S -T --no-global-tags --no-chapters E:\AviSynth\jobz.mkv --compression 1:none -a 1 -D -S -T --no-global-tags --no-chapters E:\AviSynth\job.m4a
::E:\AviSynth\trimsrt -i %5.srt -f %FPS% -t %6,%7,%8,%9
::E:\AviSynth\mkvtoolnix\mkvmerge -o E:\AviSynth\%5.mkv --engage keep_bitstream_ar_info --compression 1:none -d 1 -A -S -T --no-global-tags --no-chapters E:\AviSynth\jobz.mkv --compression 1:none -a 1 -D -S -T --no-global-tags --no-chapters E:\AviSynth\job.m4a --compression 0:none -s 0 -D -A -T --no-global-tags --no-chapters E:\AviSynth\%5new.srt

adjust your --ref according to your source and desired level compatibility: http://forum.handbrake.fr/download/f...d=49&mode=view
I use --crf 22.0 for Bluray and --crf 20.0 for DVD, some people will use lower or higher, you have to figure out what works for you: https://trac.handbrake.fr/wiki/ConstantQuality

To make use of trimsrt uncomment the last two lines in bd.bat by removing the two :: from the beginning of that line, and comment out the mkvmerge line before the last two lines

To use trimsrt you have to have the .srt file in the same output directory as the other files (job.mkv, job.wav, bd.bat). Also the .srt file has to have the same filename as your output filename for the finished mkv

bd.bat E:\yyh\BDMV\STREAM\00039.m2ts 004 2832 16675 16872 31270
(in this example the output file name is 004, so you would need to name the .srt file 004.srt prior to running bd.bat or bd-go.bat, which means you have to prepare your subs first)

With the bd.bat batch file I can queue up as many jobs as I want, by making another batch file that calls bd.bat eg:

bd-go.bat:

CALL bd.bat E:\yyh\BDMV\STREAM\00036.m2ts 23.976 0:2 6 001 2112 17685 17854 30940
CALL bd.bat E:\yyh\BDMV\STREAM\00037.m2ts 23.976 0:2 6 002 2833 16127 16296 31296
CALL bd.bat E:\yyh\BDMV\STREAM\00038.m2ts 23.976 0:2 6 003 2832 16463 16632 31295
CALL bd.bat E:\yyh\BDMV\STREAM\00039.m2ts 23.976 0:2 6 004 2832 16703 16872 31295
CALL bd.bat E:\yyh\BDMV\STREAM\00040.m2ts 23.976 0:2 6 005 2856 17471 17640 31295
CALL bd.bat E:\yyh\BDMV\STREAM\00041.m2ts 23.976 0:2 6 006 2832 16727 16896 31295
CALL bd.bat E:\yyh\BDMV\STREAM\00042.m2ts 23.976 0:2 6 007 2856 16367 16536 31295
CALL bd.bat E:\yyh\BDMV\STREAM\00043.m2ts 23.976 0:2 6 008 2856 15935 16104 31295

The reason for trimming and using the 2 different frame ranges is to cut out the commercial, here is an explanation of the line:

CALL bd.bat <in-file> <fps> <audio-stream-id> <audio-channels> <out-file> <frame1A> <frame1B> <frame2A> <frame2B>

<frame1A> <frame1B> is the frame range to keep before the commercial and,
<frame2A> <frame2B> is the frame range to keep after the commercial

To figure out the frame range that I needed I used Avidemux, but you could also use AvsP: http://avisynth.org/qwerpoi/ (it has a trim editor with a preview window so you can see exactly what you will get)

The Frame Range is optional, if you would like to encode the entire file you can (although if you dont need the frame ranges there are easier ways to do all this)