/* * 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 "libavcodec/avcodec.h" int main(void){    AVCodec *codec = NULL;    int ret = 0;    avcodec_register_all();     while (codec = av_codec_next(codec)) {        if (av_codec_is_encoder(codec)) {            if (codec->type == AVMEDIA_TYPE_AUDIO) {                if (!codec->sample_fmts) {                    av_log(NULL, AV_LOG_FATAL, "Encoder %s is missing the sample_fmts field\n", codec->name);                    ret = 1;                }            }        }    }    return ret;}