Difference between revisions of "Documentation:Modules/crop"
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(→Options: Longhelp text, defaults) |
(→Note: I found a typo in the module: the range limit was not 0-255 but 0-128. It doesn't really matter, since this is a former module, so I won't file a bug) |
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| Line 61: | Line 61: | ||
|min=0 | |min=0 | ||
|max=128 | |max=128 | ||
| − | |description=Maximum luminance to consider a pixel as black (0-255) | + | |description=Maximum luminance to consider a pixel as black (0-255)[[#Note|*]] |
}}</onlyinclude> | }}</onlyinclude> | ||
| + | |||
| + | == Note == | ||
| + | This must be a typo. Despite the [https://git.videolan.org/?p=vlc.git;a=blob;f=modules/video_filter/crop.c;h=2584780d98bb8527f9aacf540721a4ed5b852833;hb=c638a67c52980404d2aa6f6851b455743a898820#l97 claim of a range of <code>0-255</code>] in the help text for the <code>--autocrop-luminance-threshold</code> option, [https://git.videolan.org/?p=vlc.git;a=blob;f=modules/video_filter/crop.c;h=2584780d98bb8527f9aacf540721a4ed5b852833;hb=c638a67c52980404d2aa6f6851b455743a898820#l129 the call] to <code>[https://git.videolan.org/?p=vlc.git;a=blob;f=include/vlc_configuration.h;h=bdbb11026492436f7f7297e096a8c62f8e899b68;hb=c638a67c52980404d2aa6f6851b455743a898820#l344 add_integer_with_range]</code> would have limited this to effectively <code>0-128</code>. | ||
== Source code == | == Source code == | ||
Revision as of 05:35, 7 April 2019
| Module: Crop | |
|---|---|
| Type | Video filter |
| First VLC version | - |
| Last VLC version | 2.0.9 |
| Operating system(s) | all |
| Description | Remove borders of the video and replace them with black borders |
| Shortcut(s) | - |
Options
- crop-geometry <string> : Set the geometry of the zone to crop. This is set as
<width> × <height> + <left offset> + <top offset> - autocrop <boolean> : Automatically detect black borders and crop them default value: disabled
- autocrop-ratio-max <integer [0 .. 15000]> : Maximum image ratio. The crop plugin will never automatically crop to a higher ratio (ie, to a more "flat" image). The value is ×1000: 1333 means 4⁄3 default value: 2405
- crop-ratio <integer [0 .. 15000]> : Force a ratio (0 for automatic). Value is ×1000: 1333 means 4⁄3 default value: 0
- autocrop-time <integer> : The number of consecutive images with the same detected ratio (different from the previously detected ratio) to consider that ratio changed and trigger recrop default value: 25
- autocrop-diff <integer> : The minimum difference in the number of detected black lines to consider that ratio changed and trigger recrop default value: 16
- autocrop-non-black-pixels <integer> : The maximum of non-black pixels in a line to consider that the line is black default value: 3
- autocrop-skip-percent <integer [0 .. 100]> : Percentage of the line to consider while checking for black lines. This allows skipping logos in black borders and crop them anyway default value: 17
- autocrop-luminance-threshold <integer [0 .. 128]> : Maximum luminance to consider a pixel as black (0-255)* default value: 40
Note
This must be a typo. Despite the claim of a range of 0-255 in the help text for the --autocrop-luminance-threshold option, the call to add_integer_with_range would have limited this to effectively 0-128.
Source code
- modules/video_filter/crop.c (vlc/vlc-2.0.git)
This page is part of official VLC media player Documentation (User Guide • Streaming HowTo • Hacker Guide • Modules)
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Please read the Documentation Editing Guidelines before you edit the documentation
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
