Function decode_ps_map

libhb/stream.c:3792–3892

}

static int decode_ps_map( hb_stream_t * stream, uint8_t *buf, int len )
{
    int retval = 1;
    bitbuf_t bb;
    bits_init(&bb, buf, len, 0);

    if ( bits_bytes_left(&bb) < 10 )
        return 0;

    // Skip stuff not needed
    bits_skip(&bb, 8 * 8);
    int info_len = bits_get(&bb, 16);
    if ( bits_bytes_left(&bb) < info_len )
        return 0;

    if ( info_len )
    {
        bitbuf_t cc;
        bits_clone( &cc, &bb, info_len );

        while ( bits_bytes_left(&cc) >= 2 )
        {
            uint8_t tag, len;

            tag = bits_get(&cc, 8);
            len = bits_get(&cc, 8);
            if ( bits_bytes_left(&cc) < len )
                return 0;

            if (tag == 0x05 && len >= 4)
            {
                // registration descriptor
                stream->reg_desc = bits_get(&cc, 32);
                bits_skip(&cc, 8 * (len - 4));
            }
            else
            {
                bits_skip(&cc, 8 * len);
            }
        }
        bits_skip(&bb, 8 * info_len);
    }

    int map_len = bits_get(&bb, 16);
    if ( bits_bytes_left(&bb) < map_len )
        return 0;

    // Process the map
    int ii = 0;
    while ( bits_bytes_left(&bb) >= 8 )
    {
        int pes_idx;
        int stream_type = bits_get(&bb, 8);
        int stream_id = bits_get(&bb, 8);
        info_len = bits_get(&bb, 16);
        if ( info_len > bits_bytes_left(&bb) )
            return 0;