mirror of
https://github.com/pikvm/ustreamer.git
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90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
/*****************************************************************************
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# uStreamer - Lightweight and fast MJPG-HTTP streamer. #
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# #
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# Copyright (C) 2018 Maxim Devaev <mdevaev@gmail.com> #
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# #
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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 General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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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 General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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*****************************************************************************/
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#pragma once
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#include <stddef.h>
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#include <stdbool.h>
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#include <signal.h>
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#include <linux/videodev2.h>
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#define STANDARD_UNKNOWN V4L2_STD_UNKNOWN
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#define STANDARDS_STR "UNKNOWN, PAL, NTSC, SECAM"
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#define FORMAT_UNKNOWN -1
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#define FORMATS_STR "YUYV, UYVY, RGB565"
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struct hw_buffer_t {
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void *start;
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size_t length;
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};
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struct picture_t {
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unsigned char *data;
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unsigned long size;
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unsigned long allocated;
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};
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struct device_runtime_t {
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int fd;
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unsigned width;
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unsigned height;
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unsigned format;
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unsigned n_buffers;
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unsigned n_workers;
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struct hw_buffer_t *hw_buffers;
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struct picture_t *pictures;
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unsigned long max_picture_size;
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bool capturing;
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};
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struct device_t {
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char *path;
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unsigned width;
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unsigned height;
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unsigned format;
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v4l2_std_id standard;
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bool dv_timings;
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unsigned n_buffers;
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unsigned n_workers;
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unsigned every_frame;
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unsigned min_frame_size;
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unsigned jpeg_quality;
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unsigned timeout;
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unsigned error_timeout;
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struct device_runtime_t *run;
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sig_atomic_t volatile stop;
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};
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struct device_t *device_init();
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void device_destroy(struct device_t *dev);
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int device_parse_format(const char *const str);
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v4l2_std_id device_parse_standard(const char *const str);
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int device_open(struct device_t *dev);
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void device_close(struct device_t *dev);
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