JpegSource
From Avisynth wiki
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== [[Script variables|Syntax and Parameters]] == | == [[Script variables|Syntax and Parameters]] == | ||
| − | :{{Template: | + | :{{Template:FuncDef2|JpegSource (''string'' file, ''int'' "rec", ''int'' "channel", ''int'' "length", ''float'' "fps_num", ''int'' "fps_den")}} |
<br> | <br> | ||
| − | ::{{ | + | ::{{Par3|file|string| }} |
:::Path to image file. Path can be omitted if the script is in the same folder as the image file. | :::Path to image file. Path can be omitted if the script is in the same folder as the image file. | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par3|rec|int|1}} |
:::Number of reconstruction passes; set to 0 to disable. | :::Number of reconstruction passes; set to 0 to disable. | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par3|channel|int|-1}} |
:::Load only one image channel with specified index (zero based). | :::Load only one image channel with specified index (zero based). | ||
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::::3 : load 4th channel (only for CMYK/YCCK JPEGs) | ::::3 : load 4th channel (only for CMYK/YCCK JPEGs) | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par3|length|int|1000}} |
:::Clip length in frames. | :::Clip length in frames. | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par3|fps_num|float|24}} |
:::FPS numerator. | :::FPS numerator. | ||
<br> | <br> | ||
| − | ::{{ | + | ::{{Par3|fps_den|int|1}} |
:::FPS denominator. | :::FPS denominator. | ||
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== Examples == | == Examples == | ||
JpegSource with default settings: | JpegSource with default settings: | ||
Revision as of 14:37, 12 May 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 directly in their native colorspace. In addition, JpegSource
- has an optional reconstruction pass that can only be done 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:
Syntax and Parameters
JpegSource (string file, int "rec", int "channel", int "length", float "fps_num", int "fps_den")
file string =
- Path to image file. Path can be omitted if the script is in the same folder as the image file.
rec int = 1
- Number of reconstruction passes; set to 0 to disable.
channel int = -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)
length int = 1000
- Clip length in frames.
fps_num float = 24
- FPS numerator.
fps_den int = 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
- Doom9 Forum - JpegSource discussion.
Back to External Filters ←
