Split global .gitignore file into per-directory files
[libav.git] / libavutil / tests / fifo.c
1 /*
2 * This file is part of Libav.
3 *
4 * Libav is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * Libav is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with Libav; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <stdio.h>
20
21 #include "libavutil/fifo.h"
22
23 int main(void)
24 {
25 /* create a FIFO buffer */
26 AVFifoBuffer *fifo = av_fifo_alloc(13 * sizeof(int));
27 int i, j, n;
28
29 /* fill data */
30 for (i = 0; av_fifo_space(fifo) >= sizeof(int); i++)
31 av_fifo_generic_write(fifo, &i, sizeof(int), NULL);
32
33 /* peek at FIFO */
34 n = av_fifo_size(fifo) / sizeof(int);
35 for (i = -n + 1; i < n; i++) {
36 int *v = (int *)av_fifo_peek2(fifo, i * sizeof(int));
37 printf("%d: %d\n", i, *v);
38 }
39 printf("\n");
40
41 /* read data */
42 for (i = 0; av_fifo_size(fifo) >= sizeof(int); i++) {
43 av_fifo_generic_read(fifo, &j, sizeof(int), NULL);
44 printf("%d ", j);
45 }
46 printf("\n");
47
48 av_fifo_free(fifo);
49
50 return 0;
51 }