elphel: apps/sctl/sctl.cgi.cpp File Reference

*************************************************************************** ! FILE NAME : autoexposure.c ! DESCRIPTION: Daemon to adjust camera exposure and white balance ! Copyright (C) 2008 Elphel, Inc. ! -----------------------------------------------------------------------------** ! 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 <http://www.gnu.org/licenses/>. ! -----------------------------------------------------------------------------** ! !

Log: autoexposure.c,v

! Revision 1.1.1.1 2008/11/27 20:04:01 elphel ! ! ! Revision 1.16 2008/11/18 19:30:16 elphel ! Added initialization of the "next" frame - otherwise it wait _very_ long if the camera frame number is reset ! ! Revision 1.15 2008/11/15 23:08:24 elphel ! 8.0.alpha17 - split autoexposure source file ! ! Revision 1.14 2008/11/15 07:05:38 elphel ! implemented analog gain control (in addition to gammas) while while balancing ! ! Revision 1.13 2008/11/15 03:10:13 elphel ! Some parameters renamed, reassigned. ! ! Revision 1.12 2008/11/14 07:13:32 elphel ! Added gammaReverse() and gammaDirect() functions, TODO lists, bug fixes ! ! Revision 1.11 2008/11/14 01:01:59 elphel ! cleared debug output ! ! Revision 1.10 2008/11/13 05:40:45 elphel ! 8.0.alpha16 - modified histogram storage, profiling ! ! Revision 1.9 2008/11/08 05:52:21 elphel ! debug feature ! ! Revision 1.8 2008/11/04 17:40:34 elphel ! comment typos ! ! Revision 1.7 2008/11/02 00:32:35 elphel ! added TODO ! ! Revision 1.6 2008/10/31 18:26:32 elphel ! Adding support for constants like SENSOR_REGS32 (defined constant plus 32 to simplify referencing sensor registers from PHP ! ! Revision 1.5 2008/10/29 04:18:28 elphel ! v.8.0.alpha10 made a separate structure for global parameters (not related to particular frames in a frame queue) ! ! Revision 1.4 2008/10/28 07:05:12 elphel ! implemented white balance, HDR mode (1/1 and 2/2) ! ! Revision 1.3 2008/10/26 05:55:38 elphel ! snapshot ! ! Revision 1.2 2008/10/25 19:49:15 elphel ! 8.0.alpha8 - added autoexposure to the installation ! ! Revision 1.1 2008/10/24 00:34:12 elphel ! initial release !

array of histogram

colors 1 - r, 2 - g1, 4 - g2, 8 - b, 16 - w, 32 - g1+g2

enable requesting histogram calculation for the specified frame (0 - use/wait what available)

Sample from camvc.html http://192.168.0.9/pnghist.cgi?sqrt=1&scale=5&average=5&height=128&fillz=1&linterpz=0&draw=2&colors=41 FIXME: Some bump on low red - what is it?

instead of autoexp_fd

now try to mmap

Now find the index of the most recently available histogram (maybe will wait a little if it is not yet available for the current frame - use previous?)

wait for all histograms, not just Y (G1)

forward and cumulative histograms are needed

disable requesting histogram for the specified frame, rely on the available ones

request histograms for the previous frame

Ignore missing histograms here

cumul_hist_g[255] - total number of pixels for color G1

linear interpolation - also for high digital gains (near black with low gammas)

apply running average (if any)

calculate white if needed

calculate green if needed

now scale data

Definition at line 77 of file sctl.cgi.cpp.

References cmd, header, HEADER_TEXT, HEADER_XML, method, n, parse_string(), query, stream_status(), stream_status_to_file(), streamer_start(), streamer_stop(), and uri.

bool parse_string	(	const string &	str,
		char	delimiter,
		string &	left,
		string &	right
	)

Definition at line 53 of file sctl.cgi.cpp.

Referenced by conf_load(), main(), and parse_arg().

bool run_daemon	(	string	prog,
		list< string >	args
	)

Definition at line 141 of file sctl.cgi.cpp.

References a, malloc(), stderr, stdout, and streamer_is_run().

Referenced by streamer_start(), and streamer_stop().

void stop_compressor ( void )

Definition at line 241 of file sctl.cgi.cpp.

References CMOSCAM_IOCTYPE, and IO_CCAM_JPEG.

Referenced by streamer_stop().

void stream_status ( void )

Definition at line 370 of file sctl.cgi.cpp.

References _STATUS_XML, get_self_ip(), and streamer_is_run().

Referenced by main().

void stream_status_to_file ( map< string, string > opts )

Definition at line 343 of file sctl.cgi.cpp.

References _STATUS_XML, get_self_ip(), and t.

Referenced by main().

bool streamer_is_run ( void )

Definition at line 133 of file sctl.cgi.cpp.

References fd, and STREAMER_LOCK.

Referenced by run_daemon(), stream_status(), streamer_start(), and streamer_stop().

bool streamer_start ( map< string, string > )

Definition at line 186 of file sctl.cgi.cpp.

References _STR, conf_save(), run_daemon(), streamer_is_run(), and t.

Referenced by main().

bool streamer_stop ( void )

Definition at line 247 of file sctl.cgi.cpp.

References _KILLALL, run_daemon(), stop_compressor(), and streamer_is_run().

Referenced by main().

apps/sctl/sctl.cgi.cpp File Reference

Defines

Functions

Define Documentation

Function Documentation


Defines
#define	_KILLALL "/usr/bin/killall"
#define	_FPCF "/usr/local/bin/fpcf"
#define	_STR "/usr/local/bin/str"
#define	_CONF_RUN "/var/state/streamer.conf"
#define	_CONF "/etc/streamer.conf"
#define	_STATUS_XML "/var/state/streamer.xml"
#define	HEADER_TEXT 0x00
#define	HEADER_XML 0x01
#define	STREAMER_ELF "str"
#define	STREAMER_LOCK "/dev/stream"
#define	DEFAULT_PORT "20000"
#define	DEFAULT_ADDR "232.0.0.1"
#define	CMOSCAM_IOCTYPE 124
#define	IO_CCAM_JPEG 0x08
Functions
void	header (int type)
bool	parse_string (const string &str, char delimiter, string &left, string &right)
bool	streamer_start (map< string, string >)
bool	streamer_stop (void)
void	stream_status (void)
bool	conf_save (map< string, string >)
void	conf_load (ostream &stream)
string	get_self_ip (string)
void	stream_status_to_file (map< string, string > opts)
int	main (int argc, char *argv[])
bool	streamer_is_run (void)
bool	run_daemon (string prog, list< string > args)
void	stop_compressor (void)