view midi/chgvel.c @ 97:3a75c13895a5

Some h264-faac fixes for video-audio alignment.
author Gregor Richards <Richards@codu.org>
date Sun, 05 Aug 2012 18:32:04 -0400
parents cdc9bbab5f4d
children
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/*
 * Copyright (C) 2010 Gregor Richards
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char **argv)
{
    char buf[1024], *v;
    int red;

    if (argc != 2) {
        fprintf(stderr, "Use: chgvel <1/reduction>\n");
        return 1;
    }
    red = atoi(argv[1]);

    while (fgets(buf, 1024, stdin)) {
        if (strstr(buf, " On ") != NULL || strstr(buf, " Off ") != NULL) {
            if ((v = strstr(buf, "v=")) != NULL) {
                sprintf(v + 2, "%d\n", atoi(v + 2) * (red - 1) / red + (128/red));
            }
        }
        printf("%s", buf);
    }
    return 0;
}