JeVois  1.21
JeVois Smart Embedded Machine Vision Toolkit
Share this page:
Loading...
Searching...
No Matches
VideoOutputNone.H
Go to the documentation of this file.
1// ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
2//
3// JeVois Smart Embedded Machine Vision Toolkit - Copyright (C) 2016 by Laurent Itti, the University of Southern
4// California (USC), and iLab at USC. See http://iLab.usc.edu and http://jevois.org for information about this project.
5//
6// This file is part of the JeVois Smart Embedded Machine Vision Toolkit. This program is free software; you can
7// redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software
8// Foundation, version 2. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
9// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
10// License for more details. You should have received a copy of the GNU General Public License along with this program;
11// if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
12//
13// Contact information: Laurent Itti - 3641 Watt Way, HNB-07A - Los Angeles, CA 90089-2520 - USA.
14// Tel: +1 213 740 3527 - itti@pollux.usc.edu - http://iLab.usc.edu - http://jevois.org
15// ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
16/*! \file */
17
18#pragma once
19
22
23namespace jevois
24{
25 //! No-op VideoOutput derivative for when there is no video output
26 /*! This class derived from VideoOutput does (almost) nothing and can be used by Engine when no video output is
27 desired. \ingroup core */
29 {
30 public:
31 //! Virtual destructor for safe inheritance
32 virtual ~VideoOutputNone();
33
34 //! Set the video format and frame rate
35 /*! In VideoOutputNone, this is a no-op. */
36 void setFormat(VideoMapping const & m) override;
37
38 //! Get a pre-allocated image so that we can fill the pixel data and later send out using send()
39 /*! In VideoOutputNone, this returns a blank buffer. */
40 void get(RawImage & img) override;
41
42 //! Send an image out
43 /*! In VideoOutputNone, this is a no-op. */
44 void send(RawImage const & img) override;
45
46 //! Start streaming
47 /*! In VideoOutputNone, this is a no-op. */
48 void streamOn() override;
49
50 //! Abort streaming
51 /*! In VideoOutputNone, this is a no-op. */
52 void abortStream() override;
53
54 //! Stop streaming
55 /*! In VideoOutputNone, this is a no-op. */
56 void streamOff() override;
57
58 protected:
59 std::shared_ptr<VideoBuf> itsBuffer;
61 };
62}
63
A raw image as coming from a V4L2 Camera and/or being sent out to a USB Gadget.
Definition RawImage.H:111
No-op VideoOutput derivative for when there is no video output.
void streamOff() override
Stop streaming.
std::shared_ptr< VideoBuf > itsBuffer
jevois::RawImage itsImage
void abortStream() override
Abort streaming.
void send(RawImage const &img) override
Send an image out.
void setFormat(VideoMapping const &m) override
Set the video format and frame rate.
void get(RawImage &img) override
Get a pre-allocated image so that we can fill the pixel data and later send out using send()
void streamOn() override
Start streaming.
virtual ~VideoOutputNone()
Virtual destructor for safe inheritance.
Base class for video output. Gadget, MovieOutput, VideoDisplay, and VideoOutputNone derive from it.
Definition VideoOutput.H:28
Main namespace for all JeVois classes and functions.
Definition Concepts.dox:2
Simple struct to hold video mapping definitions for the processing Engine.