renamed us_device* to us_capture*

src/libs/capture.h

@@ -0,0 +1,137 @@
+/*****************************************************************************
+#                                                                            #
+#    uStreamer - Lightweight and fast MJPEG-HTTP streamer.                   #
+#                                                                            #
+#    Copyright (C) 2018-2024  Maxim Devaev <mdevaev@gmail.com>               #
+#                                                                            #
+#    This program is free software: you can redistribute it and/or modify    #
+#    it under the terms of the GNU General Public License as published by    #
+#    the Free Software Foundation, either version 3 of the License, or       #
+#    (at your option) any later version.                                     #
+#                                                                            #
+#    This program 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 General Public License for more details.                            #
+#                                                                            #
+#    You should have received a copy of the GNU General Public License       #
+#    along with this program.  If not, see <https://www.gnu.org/licenses/>.  #
+#                                                                            #
+*****************************************************************************/
+
+
+#pragma once
+
+#include <stdatomic.h>
+
+#include <linux/videodev2.h>
+
+#include "types.h"
+#include "frame.h"
+
+
+#define US_VIDEO_MIN_WIDTH		((uint)160)
+#define US_VIDEO_MAX_WIDTH		((uint)15360) // Remember about stream->run->http_capture_state;
+
+#define US_VIDEO_MIN_HEIGHT		((uint)120)
+#define US_VIDEO_MAX_HEIGHT		((uint)8640)
+
+#define US_VIDEO_MAX_FPS		((uint)120)
+
+#define US_STANDARDS_STR		"PAL, NTSC, SECAM"
+#define US_FORMATS_STR			"YUYV, YVYU, UYVY, RGB565, RGB24, BGR24, MJPEG, JPEG"
+#define US_IO_METHODS_STR		"MMAP, USERPTR"
+
+
+typedef struct {
+	us_frame_s			raw;
+	struct v4l2_buffer	buf;
+	int					dma_fd;
+	bool				grabbed;
+	atomic_int			refs;
+} us_hw_buffer_s;
+
+typedef struct {
+	int					fd;
+	uint				width;
+	uint				height;
+	uint				format;
+	uint				stride;
+	float				hz;
+	uint				hw_fps;
+	uint				jpeg_quality;
+	uz					raw_size;
+	uint				n_bufs;
+	us_hw_buffer_s		*hw_bufs;
+	bool				dma;
+	enum v4l2_buf_type	capture_type;
+	bool				capture_mplane;
+	bool				streamon;
+	int					open_error_reported;
+} us_capture_runtime_s;
+
+typedef enum {
+	CTL_MODE_NONE = 0,
+	CTL_MODE_VALUE,
+	CTL_MODE_AUTO,
+	CTL_MODE_DEFAULT,
+} us_control_mode_e;
+
+typedef struct {
+	us_control_mode_e	mode;
+	int					value;
+} us_control_s;
+
+typedef struct {
+	us_control_s	brightness;
+	us_control_s	contrast;
+	us_control_s	saturation;
+	us_control_s	hue;
+	us_control_s	gamma;
+	us_control_s	sharpness;
+	us_control_s	backlight_compensation;
+	us_control_s	white_balance;
+	us_control_s	gain;
+	us_control_s	color_effect;
+	us_control_s	rotate;
+	us_control_s	flip_vertical;
+	us_control_s	flip_horizontal;
+} us_controls_s;
+
+typedef struct {
+	char				*path;
+	uint				input;
+	uint				width;
+	uint				height;
+	uint				format;
+	uint				jpeg_quality;
+	v4l2_std_id			standard;
+	enum v4l2_memory	io_method;
+	bool				dv_timings;
+	uint				n_bufs;
+	bool				dma_export;
+	bool				dma_required;
+	uint				desired_fps;
+	uz					min_frame_size;
+	bool				persistent;
+	uint				timeout;
+	us_controls_s 		ctl;
+	us_capture_runtime_s *run;
+} us_capture_s;
+
+
+us_capture_s *us_capture_init(void);
+void us_capture_destroy(us_capture_s *cap);
+
+int us_capture_parse_format(const char *str);
+int us_capture_parse_standard(const char *str);
+int us_capture_parse_io_method(const char *str);
+
+int us_capture_open(us_capture_s *cap);
+void us_capture_close(us_capture_s *cap);
+
+int us_capture_grab_buffer(us_capture_s *cap, us_hw_buffer_s **hw);
+int us_capture_release_buffer(us_capture_s *cap, us_hw_buffer_s *hw);
+
+void us_capture_buffer_incref(us_hw_buffer_s *hw);
+void us_capture_buffer_decref(us_hw_buffer_s *hw);