数据流的打包分组stream_to_tagged_stream

东方耀

数据流的打包分组stream_to_tagged_stream：
Wiki Page for this Block: https://wiki.gnuradio.org/index.php/Stream_to_Tagged_Stream


blocks_stream_to_tagged_stream
int stream_to_tagged_stream_impl::work(int noutput_items,
                                       gr_vector_const_void_star& input_items,
                                       gr_vector_void_star& output_items)
{
    gr::thread::scoped_lock guard(d_setlock);
    const unsigned char* in = (const unsigned char*)input_items[0];
    unsigned char* out = (unsigned char*)output_items[0];
    // 拷贝数据 没有改变什么
    memcpy(out, in, noutput_items * d_itemsize);
    // Add tags every d_packet_len
    while (d_next_tag_pos < nitems_written(0) + noutput_items) {
        add_item_tag(0, d_next_tag_pos, d_len_tag_key, d_packet_len_pmt);
        d_next_tag_pos += d_packet_len;
    }


    return noutput_items;
}


显示数据流的打包信息：tag debug

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