Avs2pipemod

Description

Given an AviSynth script as input, avs2pipemod can send video, audio, or information of various types to stdout for consumption by command-line encoders or other tools. It is a continued development of avs2pipe. Thanks to Chris Beswick for releasing avs2pipe under GPL 3.0.

Differences compared to the original:

• Display total elapsed time.
• contents of 'info'
• New option 'benchmark'.
• New option 'trim'.
• New option 'x264raw'
• New option 'dumptxt'
• 'y4mp', 'y4mt', 'y4mb' and 'rawvideo' options instead of 'video'.
• FieldBased input will be corrected to framebased on yuv4mpeg2 output modes.
• Colorspace conversion that takes colormatrix and interlace into consideration.
• 'wav', 'extwav' and 'rawaudio' option instead of 'audio'.
• Convert bit depth function in audio output mode.
• Only the compilation with mingw/msys is supported.

Requirements

• AviSynth 2.6.0 or greater
• Supported color formats: Y8, YV12, YV16, YV24, YV411

Usage

avs2pipemod ver 1.3.0
built on Dec 19 2025 08:15:34
Usage: avs2pipemod [option] input.avs
 e.g. avs2pipemod -wav=24bit input.avs > output.wav
 avs2pipemod -y4mt=10:11 input.avs | x264 - --demuxer y4m -o tff.mkv
 avs2pipemod -rawvideo -trim=1000,0 input.avs > output.yuv
 -wav[=8bit|16bit|24bit|32bit|float default unset]
 output wav format audio(WAVEFORMATEX) to stdout.
 if optional arg is set, audio sample type of input will be converted
 to specified value.
 -extwav[=8bit|16bit|24bit|32bit|float default unset]
 output wav extensible format audio(WAVEFORMATEXTENSIBLE) containing
 channel-mask to stdout.
 if optional arg is set, audio sample type of input will be converted
 to specified value.
 -rawaudio[=8bit|16bit|24bit|32bit|float default unset]
 output raw pcm audio(without any header) to stdout.
 if optional arg is set, audio sample type of input will be converted
 to specified value.
 -y4mp[=sar default 0:0]
 output yuv4mpeg2 format video to stdout as progressive.
 -y4mt[=sar default 0:0]
 output yuv4mpeg2 format video to stdout as tff interlaced.
 -y4mb[=sar default 0:0]
 output yuv4mpeg2 format video to stdout as bff interlaced.
 -rawvideo[=vflip default unset]
 output rawvideo(without any header) to stdout.
 -info - output information about aviscript clip.
 -filters - output external plugin filters/functions list to stdout.
 -benchmark - do benchmark avs script, and output results to stdout.
 -dumptxt - dump pixel values as tab separated text to stdout.
 -dumpprops - dump frame properties as JSON string to stdout.
 -trim[=first_frame,last_frame default 0,0]
 add Trim(first_frame,last_frame) to input script.
 in info, this option is ignored.
 -dll[=path to avisynth.dll default "avisynth"]
 specify which avisynth.dll is used.
note1 : in yuv4mpeg2 output mode, RGB input that has 720pix height or more
 will be converted to YUV with Rec.709 coefficients instead of Rec.601.
note2 : in fact, it is a spec violation to use WAVEFORMATEX(-wav option)
 except 8bit/16bit PCM.
 however, there are some applications that accept such invalid files
 instead of supporting WAVEFORMATEXTENSIBLE.
note3 : speaker positions in files output by '-extwav' are set using
 the clip property from avs+.
 if it is not set, general speaker positions are used instead.
 Chan. MS channels Description
 ----- ------------------------- ----------------
 1 FC Mono
 2 FL FR Stereo
 3 FL FR BC First Surround
 4 FL FR BL BR Quadro
 5 FL FR FC BL BR like Dpl II (without LFE)
 6 FL FR FC LF BL BR Standard Surround
 7 FL FR FC LF BL BR BC With back center
 8 FL FR FC LF BL BR FLC FRC With front center left/right
<br>
== Examples ==
'''TO DO'''
* Dump pixel values[http://forum.doom9.org/showthread.php?t=164146].
 #colorbars.avs
 ColorBars(320, 240, "YV12").Trim(0, -1)
 $ avs2pipemod -dumpyuv colorbars.avs > dump.txt
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<br>
== Changelog ==
 Version Date Changes<br>
 1.3.0 12/19/2025 - Add new option '-dumpprops'.
 1.1.1 08/13/2016 - support [[Avisynthplus_color_formats|AviSynth+ new pixel types]]
 - also add new option 'filters'<br>
 1.0.3 07/23/2016 - fix possibility of memory leaks
 - also add version resource<br>
 1.0.0 07/10/2016 - change avisynth_c.h to Avisynth+MT's avisynth.h.
 - change C99 to C++11.
 - change mingw-w64 to VisualC++2015.
 - drop Avisynth 2.5x support.
 - drop WindowsXP support.
 - drop x264bd and x264raw options.
 - add Avisynth+MT's new 16/32bit formats support.
 - add FFmpeg's extended Y4M formats output support.<br>
 0.4.2m 01/20/2013 - Add progress indicator for audio output(experimental)<br> 
 0.4.1 03/14/2012 - Fix wrong error handling in '-x264raw(tc)'.<br>
 0.4.0 03/04/2012 - Change '-dumpyuv' to '-dumptxt', and support all colorspaces.<br>
 0.3.0 02/17/2012 - Add new option '-dumpyuv'<br>
 0.2.1 01/30/2012 - Add new options '-x264raw', '-x264rawtc'.<br>
 0.1.2 01/28/2012 - Fix crash when importing invalid avs.<br>
 0.1.1 01/05/2012 - Rewrite code.
 - avs2pipemod detects avisynth version, and changes the actions. 
 (thus, avs2pipe26mod was removed.)
 - avisynth.lib is unnecessary any longer.
 - win64 builds can also be compiled now.<br> 
 20111130 11/30/200 - Port video output processing from latest avs2pipe.<br>
 20110919 09/19/2011 - Add new option 'trim'.<br>
 20110703-2 07/03/2011 - Changed -audio to -extwav.<br>
 20110703 07/03/2011 - Add new options '-wav' and '-extwav', and remove '-audio'.
 - '-wav' outputs audio with normal riff-wave header.
 - '-extwav' outputs audio with wave extensible header containing channel-mask.<br>
 20110510 05/10/2011 - Fix incorrect output of 'x264bd', and some modified.
 - Correct a bug in '-audio' and '-rawaudio'.<br>
 20110507 05/07/2011 - initial release
<br>
== Archived Downloads ==
{| class="wikitable" border="1"; width="500px"
|-
!!width="100px"| Version
!!width="200px"| Download
!!width="200px"| Mirror
|-
!v1.0.0
|[http://github.com/chikuzen/avs2pipemod/releases/download/1.0.0/avs2pipemod-1.0.0.zip avs2pipemod-1.0.0.zip]
|N/A
|-
!v0.4.2m
|[http://www.mediafire.com/download/alg424t3kx7ak5d/avs2pipemod-0.4.2m.7z avs2pipemod-0.4.2m.7z]
|N/A
|}
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== External Links ==
*[http://github.com/chikuzen/avs2pipemod GitHub] - Source code repository.
*[http://forum.doom9.org/showthread.php?p=1611905#post1611905 Doom9 Forum] - avs2pipemod discussion.
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[[Category:Utilities]]
[[Category:Piping]]