JpegSource

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{{FilterCat|External_filters|Source_filters|Plugins}}
 
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| SEt
 
| SEt
 
| 2014.4.19  
 
| 2014.4.19  
 
| [http://dl.dropboxusercontent.com/s/rjnt0y3ead2c6ef/JpegSource_20140419.7z JpegSource_20140419.7z]
 
| [http://dl.dropboxusercontent.com/s/rjnt0y3ead2c6ef/JpegSource_20140419.7z JpegSource_20140419.7z]
 
| Source filters  
 
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== Changelog ==
 
== Changelog ==
 
  Version        Date            Changes<br>
 
  Version        Date            Changes<br>
  2014.4.19      04/19/2010      - Added single-channel mode, so you can load pretty much every JPEG you can encounter even when  
+
  2014.4.19      04/19/2010      - Added single-channel mode, so you can load pretty much every JPEG you
                                  Avisynth doesn't have an appropriate colorspace.<br>
+
                                  can encounter even when Avisynth doesn't have an appropriate colorspace.<br>
 
  2014.4.18      04/18/2014      - Support JPEGs with arithmetic compression.
 
  2014.4.18      04/18/2014      - Support JPEGs with arithmetic compression.
 
                                 - No longer locks files after first frame was decoded.
 
                                 - No longer locks files after first frame was decoded.

Revision as of 00:07, 21 April 2014

Abstract
Author SEt
Version 2014.4.19
Download JpegSource_20140419.7z
Category Source filters
License Free for non-commercial use, closed source.
Discussion


Contents

Description

An advanced JPEG decoder for AviSynth 2.6 which decodes JPEGs in its native colorspace. In addition, JpegSource does a
reconstruction pass on the data during the decoding stage. This process can accurately suppress common JPEG artifacts
(blocking, ringing/mosquito noise, etc). The reconstruction pass is harmless on high quality JPEGs but can produce
excellent results on highly compressed JPEGs. This technique yields better results than other post-processing methods.


Supported Formats

JpegSource supports just about every kind of JPEG file, but due to lack of colorspace support in AviSynth some formats
need additional steps to load:
  • YUV440 JPEGs - channels have to be loaded individually.
  • CMYK/YCCK JPEGs - channels have to be loaded individually.
  • RGB encoded JPEGs - to load correctly see the examples below.


Requirements:

- AviSynth 2.6.0 Alpha5 or later
- Supported color formats: Y8, YV12, YV16, YV24, YV411
- SSSE3 capable CPU


Syntax and Parameters

JpegSource (string file, int "rec", int "channel", int "length", float "fps_num", int "fps_den")


string  file =
Path to image file. Path can be omitted if the script is in the same folder as the image file.


int  rec = 1
Number of reconstruction passes.


int  channel = -1
Load only one image channel with specified index (zero based).
-1 : load all channels
0 : load 1st channel
1 : load 2nd channel
2 : load 3rd channel
3 : load 4th channel (only for CMYK/YCCK JPEGs)


int  length = 1000
Clip length in frames.


float  fps_num = 24
FPS numerator.


int  fps_den = 1
FPS denominator.


Examples

JpegSource with default settings:

JpegSource("image.jpg", rec=1, channel=-1, length=1000, fps_num=24, fps_den=1)


Correctly display an RGB encoded JPEG:

JpegSource("RGBimage.jpg")
MergeRGB(last, UToY8(), VToY8(), "RGB24")


Changelog

Version        Date            Changes
2014.4.19 04/19/2010 - Added single-channel mode, so you can load pretty much every JPEG you can encounter even when Avisynth doesn't have an appropriate colorspace.
2014.4.18 04/18/2014 - Support JPEGs with arithmetic compression. - No longer locks files after first frame was decoded. - Added MT and cache hints for AviSynth+. - Changed compiler to VS2013.
2014.1.5 01/05/2014 - Initial release


External Links





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