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/*
* VideoCapture Plugin for Ayttm
*
* Copyright (C) 2003, Philip S Tellis <bluesmoon @ users.sourceforge.net>
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "intl.h"
#ifdef __MINGW32__
#define __IN_PLUGIN__ 1
#endif
#include <stdio.h>
#include <string.h>
#include "plugin_api.h"
#include "video.h"
#include "mem_util.h"
#include "debug.h"
/*******************************************************************************
* Begin Module Code
******************************************************************************/
/* Module defines */
#ifndef USE_POSIX_DLOPEN
#define plugin_info video_capture_LTX_plugin_info
#define module_version video_capture_LTX_module_version
#endif
static int plugin_init();
static int plugin_finish();
static char frame_grabber[MAX_PREF_LEN] =
AYTTM_BIN_DIR "/ayttm_streamer_wrapper -d %d";
/* Module Exports */
PLUGIN_INFO plugin_info = {
PLUGIN_UTILITY,
"Video Capture",
"Capture video images from some source",
"$Revision: 1.5 $",
"$Date: 2009/09/17 12:04:58 $",
0,
plugin_init,
plugin_finish,
0,
0
};
/* End Module Exports */
unsigned int module_version()
{
return CORE_VERSION;
}
static long int grab_frame(unsigned char **image);
static long int (*old_grab_frame) (unsigned char **);
static int plugin_init()
{
input_list *il = ay_new0(input_list, 1);
plugin_info.prefs = il;
il->widget.entry.value = frame_grabber;
il->name = "frame_grabber";
il->label = _("Frame grabber command:");
il->type = EB_INPUT_ENTRY;
old_grab_frame = video_grab_frame;
video_grab_frame = grab_frame;
return 0;
}
static int plugin_finish()
{
video_grab_frame = old_grab_frame;
return 0;
}
/*******************************************************************************
* End Module Code
******************************************************************************/
static long int grab_frame(unsigned char **image)
{
FILE *grabber_fp;
unsigned char buff[1024];
unsigned char *outbuf = 0;
long int nsize = 0, n;
char *cmd = strdup(frame_grabber);
while (strstr(cmd, "%d")) {
char *tmp = strstr(cmd, "%d");
char *rest = 0;
if (*(tmp + 2))
rest = strdup(tmp + 2);
*tmp = 0;
cmd = ay_string_append(cmd, eb_config_dir());
if (rest)
cmd = ay_string_append(cmd, rest);
}
grabber_fp = popen(cmd, "r");
ay_free(cmd);
if (!grabber_fp)
return -1;
while (!(feof(grabber_fp) || ferror(grabber_fp))) {
n = fread(buff, 1, sizeof(buff), grabber_fp);
outbuf = ay_renew(unsigned char, outbuf, n + nsize);
memcpy(outbuf + nsize, buff, n);
nsize += n;
}
pclose(grabber_fp);
*image = outbuf;
return nsize;
}
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