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/*
* Copyright © 2012 Intel Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
* CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <sys/mman.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <cairo.h>
#include "wcap-decode.h"
static void
write_png(struct wcap_decoder *decoder, const char *filename)
{
cairo_surface_t *surface;
surface = cairo_image_surface_create_for_data((unsigned char *) decoder->frame,
CAIRO_FORMAT_ARGB32,
decoder->width,
decoder->height,
decoder->width * 4);
cairo_surface_write_to_png(surface, filename);
cairo_surface_destroy(surface);
}
int main(int argc, char *argv[])
{
struct wcap_decoder *decoder;
int i, output_frame;
char filename[200];
if (argc != 2 && argc != 3) {
fprintf(stderr, "usage: wcap-snapshot WCAP_FILE [FRAME]\n");
return 1;
}
decoder = wcap_decoder_create(argv[1]);
output_frame = -1;
if (argc == 3)
output_frame = strtol(argv[2], NULL, 0);
i = 0;
while (wcap_decoder_get_frame(decoder)) {
if (i == output_frame) {
snprintf(filename, sizeof filename,
"wcap-frame-%d.png", i);
write_png(decoder, filename);
printf("wrote %s\n", filename);
}
i++;
}
printf("wcap file: size %dx%d, %d frames\n",
decoder->width, decoder->height, i);
wcap_decoder_destroy(decoder);
return EXIT_SUCCESS;
}
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