libsc 2.8.5.210-64a7
The SC library provides support for parallel scientific applications.
sc_v4l2.h
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1/*
2 This file is part of the SC Library.
3 The SC Library provides support for parallel scientific applications.
4
5 Copyright (C) 2010 The University of Texas System
6 Additional copyright (C) 2011 individual authors
7
8 The SC Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 The SC Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with the SC Library; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 02110-1301, USA.
22*/
23
29#ifndef SC_V4L2_H
30#define SC_V4L2_H
31
32#include <sc.h>
33
34SC_EXTERN_C_BEGIN;
35
37typedef struct sc_v4l2_device sc_v4l2_device_t;
38
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91 unsigned usec);
92
99 const char *wbuf);
100
112 unsigned int *width,
113 unsigned int *height,
114 unsigned int *bytesperline,
115 unsigned int *sizeimage);
116
117SC_EXTERN_C_END;
118
119#endif /* SC_V4L2_H */
Support for process management (memory allocation, logging, etc.)
int sc_v4l2_device_write(sc_v4l2_device_t *vd, const char *wbuf)
Call write (2) to copy an image buffer to device.
int sc_v4l2_device_select(sc_v4l2_device_t *vd, unsigned usec)
Call select (2) to wait for write availability of device.
const char * sc_v4l2_device_devstring(const sc_v4l2_device_t *vd)
Return string that details some driver and device properties.
const char * sc_v4l2_device_capstring(const sc_v4l2_device_t *vd)
Return string that details some device capabilities.
int sc_v4l2_device_format(sc_v4l2_device_t *vd, unsigned int *width, unsigned int *height, unsigned int *bytesperline, unsigned int *sizeimage)
Set output configuration of device.
int sc_v4l2_device_is_readwrite(const sc_v4l2_device_t *vd)
Query whether a device supports read/write I/O.
const char * sc_v4l2_device_outstring(const sc_v4l2_device_t *vd)
Return string that details some output properties.
struct sc_v4l2_device sc_v4l2_device_t
Opaque structure for a video device.
Definition: sc_v4l2.h:37
sc_v4l2_device_t * sc_v4l2_device_open(const char *devname)
Open a video device by special file name.
int sc_v4l2_device_close(sc_v4l2_device_t *vd)
Close a video device.
int sc_v4l2_device_is_streaming(const sc_v4l2_device_t *vd)
Query whether a device supports streaming I/O.