diff options
| author | Roy Ben Shabat <Roy.mail.net@gmail.com> | 2019-04-08 00:44:51 +0300 |
|---|---|---|
| committer | Roy Ben Shabat <Roy.mail.net@gmail.com> | 2019-04-08 00:44:51 +0300 |
| commit | 08dd6000fe3a218221003876a699f448835b62e4 (patch) | |
| tree | 6ef67384b80cd8176a4a2de8d09fae103a092357 /Software/External_Repositories/ZBar/include/zbar/Video.h | |
| parent | 3254beb8358745efc6988df3d52a24fcb858fcdd (diff) | |
| download | Tango-08dd6000fe3a218221003876a699f448835b62e4.tar.gz Tango-08dd6000fe3a218221003876a699f448835b62e4.zip | |
Working on TCC...
Diffstat (limited to 'Software/External_Repositories/ZBar/include/zbar/Video.h')
| -rw-r--r-- | Software/External_Repositories/ZBar/include/zbar/Video.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/Software/External_Repositories/ZBar/include/zbar/Video.h b/Software/External_Repositories/ZBar/include/zbar/Video.h new file mode 100644 index 000000000..2787d86b2 --- /dev/null +++ b/Software/External_Repositories/ZBar/include/zbar/Video.h @@ -0,0 +1,170 @@ +//------------------------------------------------------------------------ +// Copyright 2007-2009 (c) Jeff Brown <spadix@users.sourceforge.net> +// +// This file is part of the ZBar Bar Code Reader. +// +// The ZBar Bar Code Reader is free software; you can redistribute it +// and/or modify it under the terms of the GNU Lesser Public License as +// published by the Free Software Foundation; either version 2.1 of +// the License, or (at your option) any later version. +// +// The ZBar Bar Code Reader is distributed in the hope that it will be +// useful, but WITHOUT ANY WARRANTY; without even the implied warranty +// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser Public License for more details. +// +// You should have received a copy of the GNU Lesser Public License +// along with the ZBar Bar Code Reader; if not, write to the Free +// Software Foundation, Inc., 51 Franklin St, Fifth Floor, +// Boston, MA 02110-1301 USA +// +// http://sourceforge.net/projects/zbar +//------------------------------------------------------------------------ +#ifndef _ZBAR_VIDEO_H_ +#define _ZBAR_VIDEO_H_ + +/// @file +/// Video Input C++ wrapper + +#ifndef _ZBAR_H_ +# error "include zbar.h in your application, **not** zbar/Video.h" +#endif + +#include "Image.h" + +namespace zbar { + +/// mid-level video source abstraction. +/// captures images from a video device + +class Video { +public: + /// constructor. + Video (zbar_video_t *video = NULL) + { + if(video) + _video = video; + else + _video = zbar_video_create(); + } + + /// constructor. + Video (std::string& device) + { + _video = zbar_video_create(); + open(device); + } + + ~Video () + { + zbar_video_destroy(_video); + } + + /// cast to C video object. + operator zbar_video_t* () const + { + return(_video); + } + + /// open and probe a video device. + void open (std::string& device) + { + if(zbar_video_open(_video, device.c_str())) + throw_exception(_video); + } + + /// close video device if open. + void close () + { + if(zbar_video_open(_video, NULL)) + throw_exception(_video); + } + + /// initialize video using a specific format for debug. + /// see zbar_video_init() + void init (unsigned long fourcc) + { + if(zbar_video_init(_video, fourcc)) + throw_exception(_video); + } + + /// initialize video using a specific format for debug. + /// see zbar_video_init() + void init (std::string& format) + { + unsigned int fourcc = *(unsigned int*)format.c_str(); + if(zbar_video_init(_video, fourcc)) + throw_exception(_video); + } + + /// retrieve file descriptor associated with open *nix video device. + /// see zbar_video_get_fd() + int get_fd () + { + return(zbar_video_get_fd(_video)); + } + + /// retrieve current output image width. + /// see zbar_video_get_width() + int get_width () + { + return(zbar_video_get_width(_video)); + } + + /// retrieve current output image height. + /// see zbar_video_get_height() + int get_height () + { + return(zbar_video_get_height(_video)); + } + + /// start/stop video capture. + /// see zbar_video_enable() + void enable (bool enable = true) + { + if(zbar_video_enable(_video, enable)) + throw_exception(_video); + } + + /// retrieve next captured image. + /// see zbar_video_next_image() + Image next_image () + { + zbar_image_t *img = zbar_video_next_image(_video); + if(!img) + throw_exception(_video); + return(Image(img)); + } + + /// request a preferred size for the video image from the device. + /// see zbar_video_request_size() + /// @since 0.6 + void request_size (int width, int height) + { + zbar_video_request_size(_video, width, height); + } + + /// request a preferred driver interface version for debug/testing. + /// see zbar_video_request_interface() + /// @since 0.6 + void request_interface (int version) + { + zbar_video_request_interface(_video, version); + } + + /// request a preferred I/O mode for debug/testing. + /// see zbar_video_request_iomode() + /// @since 0.7 + void request_iomode (int iomode) + { + if(zbar_video_request_iomode(_video, iomode)) + throw_exception(_video); + } + +private: + zbar_video_t *_video; +}; + +} + +#endif |
