PeerStreamer

    int64_t         segment_uid;

    ebml_master     cluster;

    int64_t         cluster_pos;        ///< file offset of the current cluster

    int64_t         duration_offset;

    mkv_seekhead    *main_seekhead;

    mkv_seekhead    *cluster_seekhead;

    mkv_cues        *cues;

    if (entries == NULL)

        return AVERROR(ENOMEM);

    entries[cues->num_entries  ].pts = ts;

    entries[cues->num_entries  ].tracknum = stream + 1;

    entries[cues->num_entries++].cluster_pos = cluster_pos - cues->segment_offset;

        mkv->cluster_pos = url_ftell(s->pb);

        mkv->cluster = start_ebml_master(pb, MATROSKA_ID_CLUSTER, 0);

        av_md5_update(mkv->md5_ctx, pkt->data, FFMIN(200, pkt->size));

    }