Function parse_playlist

libavformat/hls.c:790–1125

}

static int parse_playlist(HLSContext *c, const char *url,
                          struct playlist *pls, AVIOContext *in)
{
    int ret = 0, is_segment = 0, is_variant = 0;
    int64_t duration = 0;
    enum KeyType key_type = KEY_NONE;
    uint8_t iv[16] = "";
    int has_iv = 0;
    char key[MAX_URL_SIZE] = "";
    char line[MAX_URL_SIZE];
    const char *ptr;
    int close_in = 0;
    int64_t seg_offset = 0;
    int64_t seg_size = -1;
    uint8_t *new_url = NULL;
    struct variant_info variant_info;
    char tmp_str[MAX_URL_SIZE];
    struct segment *cur_init_section = NULL;
    int is_http = av_strstart(url, "http", NULL);
    struct segment **prev_segments = NULL;
    int prev_n_segments = 0;
    int64_t prev_start_seq_no = -1;

    if (is_http && !in && c->http_persistent && c->playlist_pb) {
        in = c->playlist_pb;
        ret = open_url_keepalive(c->ctx, &c->playlist_pb, url, NULL);
        if (ret == AVERROR_EXIT) {
            return ret;
        } else if (ret < 0) {
            if (ret != AVERROR_EOF)
                av_log(c->ctx, AV_LOG_WARNING,
                    "keepalive request failed for '%s' with error: '%s' when parsing playlist\n",
                    url, av_err2str(ret));
            in = NULL;
        }
    }

    if (!in) {
        AVDictionary *opts = NULL;
        av_dict_copy(&opts, c->avio_opts, 0);

        if (c->http_persistent)
            av_dict_set(&opts, "multiple_requests", "1", 0);

        ret = c->ctx->io_open(c->ctx, &in, url, AVIO_FLAG_READ, &opts);
        av_dict_free(&opts);
        if (ret < 0)
            return ret;

        if (is_http && c->http_persistent)
            c->playlist_pb = in;
        else
            close_in = 1;
    }

    if (av_opt_get(in, "location", AV_OPT_SEARCH_CHILDREN, &new_url) >= 0)
        url = new_url;