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This UPM module captures a still frame from a Linux V4L device, such as a USB webcam, and and then allows you to save it as a JPEG image into a file. The camera and driver in use must support streaming, mmap-able buffers and must provide data in YUYV format. This should encompass most video cameras out there. It has been tested with a few off the shelf USB cameras without any problems. Signed-off-by: Jon Trulson <jtrulson@ics.com> Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
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/* | ||
* Author: Jon Trulson <jtrulson@ics.com> | ||
* Copyright (c) 2016 Intel Corporation. | ||
* | ||
* Permission is hereby granted, free of charge, to any person obtaining | ||
* a copy of this software and associated documentation files (the | ||
* "Software"), to deal in the Software without restriction, including | ||
* without limitation the rights to use, copy, modify, merge, publish, | ||
* distribute, sublicense, and/or sell copies of the Software, and to | ||
* permit persons to whom the Software is furnished to do so, subject to | ||
* the following conditions: | ||
* | ||
* The above copyright notice and this permission notice shall be | ||
* included in all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | ||
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
*/ | ||
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#include <unistd.h> | ||
#include <iostream> | ||
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#include "vcap.hpp" | ||
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using namespace std; | ||
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int main(int argc, char **argv) | ||
{ | ||
//! [Interesting] | ||
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string defaultDev = "/dev/video0"; | ||
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// if an argument was specified, use it as the device instead | ||
if (argc > 1) | ||
defaultDev = string(argv[1]); | ||
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cout << "Using device " << defaultDev << endl; | ||
cout << "Initializing..." << endl; | ||
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// Instantiate an VCAP instance, using the specified video device | ||
upm::VCAP *sensor = new upm::VCAP(defaultDev); | ||
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// enable some debug/verbose output | ||
sensor->setDebug(true); | ||
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// This is just a hint. The kernel can change this to a lower | ||
// resolution that the hardware supports. Use getWidth() and | ||
// getHeight() methods to see what the kernel actually chose if you | ||
// care. | ||
sensor->setResolution(1920, 1080); | ||
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// capture an image | ||
sensor->captureImage(); | ||
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// convert and save it as a jpeg | ||
sensor->saveImage("video-img1.jpg"); | ||
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cout << "Exiting..." << endl; | ||
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delete sensor; | ||
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//! [Interesting] | ||
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return 0; | ||
} |
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/* | ||
* Author: Jon Trulson <jtrulson@ics.com> | ||
* Copyright (c) 2016 Intel Corporation. | ||
* | ||
* Permission is hereby granted, free of charge, to any person obtaining | ||
* a copy of this software and associated documentation files (the | ||
* "Software"), to deal in the Software without restriction, including | ||
* without limitation the rights to use, copy, modify, merge, publish, | ||
* distribute, sublicense, and/or sell copies of the Software, and to | ||
* permit persons to whom the Software is furnished to do so, subject to | ||
* the following conditions: | ||
* | ||
* The above copyright notice and this permission notice shall be | ||
* included in all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | ||
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
*/ | ||
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import upm_vcap.VCAP; | ||
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public class VCAP_Example | ||
{ | ||
private static String defaultDev = "/dev/video0"; | ||
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public static void main(String[] args) throws InterruptedException | ||
{ | ||
// ! [Interesting] | ||
if (args.length > 0) | ||
defaultDev = args[0]; | ||
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System.out.println("Using device " + defaultDev); | ||
System.out.println("Initializing..."); | ||
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// Instantiate an VCAP instance, using the specified video device | ||
VCAP sensor = new VCAP(defaultDev); | ||
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// enable some debug/verbose output | ||
sensor.setDebug(true); | ||
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// This is just a hint. The kernel can change this to a lower | ||
// resolution that the hardware supports. Use getWidth() and | ||
// getHeight() methods to see what the kernel actually chose if you | ||
// care. | ||
sensor.setResolution(1920, 1080); | ||
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// capture an image | ||
sensor.captureImage(); | ||
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// convert and save it as a jpeg | ||
sensor.saveImage("video-img1.jpg"); | ||
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// ! [Interesting] | ||
} | ||
} |
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/*jslint node:true, vars:true, bitwise:true, unparam:true */ | ||
/*jshint unused:true */ | ||
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/* | ||
* Author: Jon Trulson <jtrulson@ics.com> | ||
* Copyright (c) 2016 Intel Corporation. | ||
* | ||
* Permission is hereby granted, free of charge, to any person obtaining | ||
* a copy of this software and associated documentation files (the | ||
* "Software"), to deal in the Software without restriction, including | ||
* without limitation the rights to use, copy, modify, merge, publish, | ||
* distribute, sublicense, and/or sell copies of the Software, and to | ||
* permit persons to whom the Software is furnished to do so, subject to | ||
* the following conditions: | ||
* | ||
* The above copyright notice and this permission notice shall be | ||
* included in all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | ||
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
*/ | ||
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var sensorObj = require('jsupm_vcap'); | ||
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/************** Main code **************/ | ||
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var defaultDev = "/dev/video0"; | ||
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// if an argument was specified, use it as the device instead | ||
if (process.argv.length > 2) | ||
{ | ||
defaultDev = process.argv[2]; | ||
} | ||
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console.log("Using device " + defaultDev); | ||
console.log("Initializing..."); | ||
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// Instantiate an VCAP instance, using the specified video device | ||
var sensor = new sensorObj.VCAP(defaultDev); | ||
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// enable some debug/verbose output | ||
sensor.setDebug(true); | ||
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// This is just a hint. The kernel can change this to a lower | ||
// resolution that the hardware supports. Use getWidth() and | ||
// getHeight() methods to see what the kernel actually chose if you | ||
// care. | ||
sensor.setResolution(1920, 1080); | ||
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// capture an image | ||
sensor.captureImage(); | ||
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// convert and save it as a jpeg | ||
sensor.saveImage("video-img1.jpg"); | ||
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// make sure we clean up | ||
sensor = null; | ||
sensorObj.cleanUp(); | ||
sensorObj = null; | ||
console.log("Exiting..."); | ||
process.exit(0); | ||
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#!/usr/bin/python | ||
# Author: Jon Trulson <jtrulson@ics.com> | ||
# Copyright (c) 2016 Intel Corporation. | ||
# | ||
# Permission is hereby granted, free of charge, to any person obtaining | ||
# a copy of this software and associated documentation files (the | ||
# "Software"), to deal in the Software without restriction, including | ||
# without limitation the rights to use, copy, modify, merge, publish, | ||
# distribute, sublicense, and/or sell copies of the Software, and to | ||
# permit persons to whom the Software is furnished to do so, subject to | ||
# the following conditions: | ||
# | ||
# The above copyright notice and this permission notice shall be | ||
# included in all copies or substantial portions of the Software. | ||
# | ||
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | ||
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE | ||
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
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import time, sys, signal, atexit | ||
import pyupm_vcap as sensorObj | ||
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## Exit handlers ## | ||
# This function stops python from printing a stacktrace when you hit control-C | ||
def SIGINTHandler(signum, frame): | ||
raise SystemExit | ||
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# This function lets you run code on exit | ||
def exitHandler(): | ||
print "Exiting..." | ||
sys.exit(0) | ||
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# Register exit handlers | ||
atexit.register(exitHandler) | ||
signal.signal(signal.SIGINT, SIGINTHandler) | ||
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defaultDev = "/dev/video0" | ||
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# if an argument was specified, use it as the device instead | ||
if (len(sys.argv) > 1): | ||
defaultDev = sys.argv[1] | ||
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print "Using device", defaultDev | ||
print "Initializing..." | ||
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# Instantiate an VCAP instance, using the specified video device | ||
sensor = sensorObj.VCAP(defaultDev) | ||
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# enable some debug/verbose output | ||
sensor.setDebug(True); | ||
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# This is just a hint. The kernel can change this to a lower | ||
# resolution that the hardware supports. Use getWidth() and | ||
# getHeight() methods to see what the kernel actually chose if you | ||
# care. | ||
sensor.setResolution(1920, 1080); | ||
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# capture an image | ||
sensor.captureImage(); | ||
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# convert and save it as a jpeg | ||
sensor.saveImage("video-img1.jpg"); | ||
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set (libname "vcap") | ||
set (libdescription "upm Video Frame Capture and image save utility") | ||
set (module_src ${libname}.cxx) | ||
set (module_h ${libname}.hpp) | ||
set (reqlibname "jpeg") | ||
upm_module_init() | ||
target_link_libraries(${libname} jpeg) | ||
if (BUILDSWIG) | ||
if (BUILDSWIGNODE) | ||
swig_link_libraries (jsupm_${libname} jpeg ${MRAA_LIBRARIES} ${NODE_LIBRARIES}) | ||
endif() | ||
if (BUILDSWIGPYTHON) | ||
swig_link_libraries (pyupm_${libname} jpeg ${PYTHON_LIBRARIES} ${MRAA_LIBRARIES}) | ||
endif() | ||
if (BUILDSWIGJAVA) | ||
swig_link_libraries (javaupm_${libname} jpeg ${MRAAJAVA_LDFLAGS} ${JAVA_LDFLAGS}) | ||
endif() | ||
endif() |
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%module javaupm_vcap | ||
%include "../upm.i" | ||
%include "std_string.i" | ||
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%include "vcap.hpp" | ||
%{ | ||
#include "vcap.hpp" | ||
%} | ||
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%pragma(java) jniclasscode=%{ | ||
static { | ||
try { | ||
System.loadLibrary("javaupm_vcap"); | ||
} catch (UnsatisfiedLinkError e) { | ||
System.err.println("Native code library failed to load. \n" + e); | ||
System.exit(1); | ||
} | ||
} | ||
%} |
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%module jsupm_vcap | ||
%include "../upm.i" | ||
%include "std_string.i" | ||
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%include "vcap.hpp" | ||
%{ | ||
#include "vcap.hpp" | ||
%} | ||
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// Include doxygen-generated documentation | ||
%include "pyupm_doxy2swig.i" | ||
%module pyupm_vcap | ||
%include "../upm.i" | ||
%include "std_string.i" | ||
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%feature("autodoc", "3"); | ||
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%include "vcap.hpp" | ||
%{ | ||
#include "vcap.hpp" | ||
%} | ||
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