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README.md: Update extra dependencies for each programs

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YAMAMOTO Takashi 2021-04-08 09:46:30 +09:00
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README.md
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@ -28,8 +28,7 @@ a good choice for this purpose:
The distribution comes with, in addition to the library, several test programs. The distribution comes with, in addition to the library, several test programs.
While the core library is very portable, these programs have some additional While the core library is very portable, these programs have some additional
dependencies. All of them require libjpeg, and two (`quirc-demo` and `inspect`) dependencies as documented below.
require SDL. The camera demos use Linux-specific APIs:
### quirc-demo ### quirc-demo
@ -38,14 +37,14 @@ video stream is displayed on screen as it's received, and any QR codes
recognised are highlighted in the image, with the decoded information both recognised are highlighted in the image, with the decoded information both
displayed on the image and printed on stdout. displayed on the image and printed on stdout.
This requires SDL and V4L2. This requires: libjpeg, libpng, SDL, V4L2
### quirc-demo-opencv ### quirc-demo-opencv
A demo similar to `quirc-demo`. A demo similar to `quirc-demo`.
But this version uses OpenCV instead of other libraries. But this version uses OpenCV instead of other libraries.
This requires OpenCV. This requires: OpenCV
### quirc-scanner ### quirc-scanner
@ -53,7 +52,7 @@ This program turns your camera into a barcode scanner. It's almost the same as
the `demo` application, but it doesn't display the video stream, and thus the `demo` application, but it doesn't display the video stream, and thus
doesn't require a graphical display. doesn't require a graphical display.
This requires V4L2. This requires: libjpeg, V4L2
### qrtest ### qrtest
@ -62,13 +61,15 @@ tree containing a bunch of JPEG images, it will attempt to locate and decode QR
codes in each image. Speed and success statistics are collected and printed on codes in each image. Speed and success statistics are collected and printed on
stdout. stdout.
This requires: libjpeg, libpng
### inspect ### inspect
This test is used for debugging. Given a single JPEG image, it will display a This test is used for debugging. Given a single JPEG image, it will display a
diagram showing the internal state of the decoder as well as printing diagram showing the internal state of the decoder as well as printing
additional information on stdout. additional information on stdout.
This requires SDL. This requires: libjpeg, libpng, SDL
Installation Installation
------------ ------------