77 lines
2.1 KiB
C
77 lines
2.1 KiB
C
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/* single frame video capture on linux
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*/
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/*
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Copyright (C) 1991-2003 The National Gallery
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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/* Video input sources, e.g. tuner, svideo, composite.
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*/
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#define IM_MAXCHANNELS (10)
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#define TUNER (0)
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#define COMPOSITE (1)
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#define SVIDEO (2)
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typedef struct lgrab {
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/* Mmap here, plus file descriptor.
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*/
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char *device;
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char *capture_buffer;
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int capture_size;
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int fd;
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/* Current settings.
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*/
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int c_channel;
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int c_width;
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int c_height;
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int c_ngrabs;
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/* Extract capabilities here.
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*/
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struct video_capability capability;
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struct video_channel channel[IM_MAXCHANNELS];
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struct video_window window;
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struct video_picture picture;
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struct video_mbuf mbuf;
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struct video_mmap mmap;
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} LGrab;
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void lgrab_destroy( LGrab *lg );
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LGrab *lgrab_new( const char *device );
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int lgrab_set_capture_size( LGrab *lg, int width, int height );
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int lgrab_set_channel( LGrab *lg, int channel );
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int lgrab_set_brightness( LGrab *lg, int brightness );
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int lgrab_set_colour( LGrab *lg, int colour );
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int lgrab_set_contrast( LGrab *lg, int contrast );
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int lgrab_set_hue( LGrab *lg, int hue );
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int lgrab_set_ngrabs( LGrab *lg, int ngrabs );
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int lgrab_capture( LGrab *lg, IMAGE *im );
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int lgrab_grab( IMAGE *im, const char *device,
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int channel, int brightness, int colour, int contrast, int hue,
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int ngrabs );
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