Function sdp_parse_line

libavformat/rtsp.c:448–749

}

static void sdp_parse_line(AVFormatContext *s, SDPParseState *s1,
                           int letter, const char *buf)
{
    RTSPState *rt = s->priv_data;
    char buf1[64], st_type[64];
    const char *p;
    enum AVMediaType codec_type;
    int payload_type;
    AVStream *st;
    RTSPStream *rtsp_st;
    RTSPSource *rtsp_src;
    struct sockaddr_storage sdp_ip;
    int ttl;

    av_log(s, AV_LOG_TRACE, "sdp: %c='%s'\n", letter, buf);

    p = buf;
    if (s1->skip_media && letter != 'm')
        return;
    switch (letter) {
    case 'c':
        get_word(buf1, sizeof(buf1), &p);
        if (strcmp(buf1, "IN") != 0)
            return;
        get_word(buf1, sizeof(buf1), &p);
        if (strcmp(buf1, "IP4") && strcmp(buf1, "IP6"))
            return;
        get_word_sep(buf1, sizeof(buf1), "/", &p);
        if (get_sockaddr(s, buf1, &sdp_ip))
            return;
        ttl = 16;
        if (*p == '/') {
            p++;
            get_word_sep(buf1, sizeof(buf1), "/", &p);
            ttl = atoi(buf1);
        }
        if (s->nb_streams == 0) {
            s1->default_ip = sdp_ip;
            s1->default_ttl = ttl;
        } else {
            rtsp_st = rt->rtsp_streams[rt->nb_rtsp_streams - 1];
            rtsp_st->sdp_ip = sdp_ip;
            rtsp_st->sdp_ttl = ttl;
        }
        break;
    case 's':
        av_dict_set(&s->metadata, "title", p, 0);
        break;
    case 'i':
        if (s->nb_streams == 0) {
            av_dict_set(&s->metadata, "comment", p, 0);
            break;
        }
        break;
    case 'm':
        /* new stream */
        s1->skip_media  = 0;
        s1->seen_fmtp   = 0;