/* * 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 "libavutil/pixdesc.h"#include "libavfilter/drawutils.h" int main(void){    enum AVPixelFormat f;    const AVPixFmtDescriptor *desc;    FFDrawContext draw;    FFDrawColor color;    int r, i;     for (f = 0; av_pix_fmt_desc_get(f); f++) {        desc = av_pix_fmt_desc_get(f);        if (!desc->name)            continue;        printf("Testing %s...%*s", desc->name,               (int)(16 - strlen(desc->name)), "");        r = ff_draw_init(&draw, f, 0);        if (r < 0) {            char buf[128];            av_strerror(r, buf, sizeof(buf));            printf("no: %s\n", buf);            continue;        }        ff_draw_color(&draw, &color, (uint8_t[]) { 1, 0, 0, 1 });        for (i = 0; i < sizeof(color); i++)            if (((uint8_t *)&color)[i] != 128)                break;        if (i == sizeof(color)) {            printf("fallback color\n");            continue;        }        printf("ok\n");    }    return 0;}