diff options
Diffstat (limited to 'ffmpeg/tools/trasher.c')
| -rw-r--r-- | ffmpeg/tools/trasher.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/ffmpeg/tools/trasher.c b/ffmpeg/tools/trasher.c deleted file mode 100644 index aaa09f4..0000000 --- a/ffmpeg/tools/trasher.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * Copyright (c) 2007 Michael Niedermayer - * - * This file is part of FFmpeg. - * - * FFmpeg is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * FFmpeg 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <stdio.h> -#include <stdlib.h> -#include <inttypes.h> -#include <errno.h> -#include <string.h> - -static uint32_t state; -static uint32_t ran(void) -{ - return state = state * 1664525 + 1013904223; -} - -int main(int argc, char **argv) -{ - FILE *f; - int count, maxburst, length; - - if (argc < 5) { - printf("USAGE: trasher <filename> <count> <maxburst> <seed>\n"); - return 1; - } - - f = fopen(argv[1], "rb+"); - if (!f) { - perror(argv[1]); - return 2; - } - count = atoi(argv[2]); - maxburst = atoi(argv[3]); - state = atoi(argv[4]); - - fseek(f, 0, SEEK_END); - length = ftell(f); - fseek(f, 0, SEEK_SET); - - while (count--) { - int burst = 1 + ran() * (uint64_t) (abs(maxburst) - 1) / UINT32_MAX; - int pos = ran() * (uint64_t) length / UINT32_MAX; - if (fseek(f, pos, SEEK_SET) < 0) { - fprintf(stderr, "seek failed\n"); - return 1; - } - - if (maxburst < 0) - burst = -maxburst; - - if (pos + burst > length) - continue; - - while (burst--) { - int val = ran() * 256ULL / UINT32_MAX; - - if (maxburst < 0) - val = 0; - - fwrite(&val, 1, 1, f); - } - } - - return 0; -} |
