哪里可以获得libav *格式的完整列表？

/* initialize libavcodec, and register all codecs and formats */
av_register_all();

/* Enumerate the codecs*/
AVCodec * codec = av_codec_next(NULL);
while(codec != NULL)
{
    fprintf(stderr, "%sn", codec->long_name);
    codec = av_codec_next(codec);
}

AVOutputFormat * oformat = av_oformat_next(NULL);
while(oformat != NULL)
{
    fprintf(stderr, "%sn", oformat->long_name);
    oformat = av_oformat_next(oformat);
}

AVOutputFormat * oformat = av_oformat_next(NULL);
while(oformat != NULL)
{
    fprintf(stderr, "%sn", oformat->long_name);
    if (oformat->codec_tag != NULL)
    {
        int i = 0;

        CodecID cid = CODEC_ID_MPEG1VIDEO;
        while (cid != CODEC_ID_NONE) 
        {
            cid = av_codec_get_id(oformat->codec_tag, i++);
            fprintf(stderr, "    %dn", cid);
        }
    }
    oformat = av_oformat_next(oformat);
}

ffmpeg -formats