libdvb

libdvb 是Linux中DVB-API v5设备的接口库。

支持三种传输系统

• 卫星：DVB-S, DVB-S2
• 地面：DVB-T, DVB-T2, ATSC, ISDB-T
• 有线：DVB-C

待办事项

• Cenelec EN 50221 - 条件接入和其他数字电视广播解码器应用的通用接口规范
• DiSEqC 1.0
• DiSEqC 1.1
• EN 50494 - Unicable I
• EN 50607 - Unicable II

FeDevice

示例DVB-S2调谐

let cmdseq = vec![
    DtvProperty::new(DTV_DELIVERY_SYSTEM, SYS_DVBS2),
    DtvProperty::new(DTV_FREQUENCY, (11044 - 9750) * 1000),
    DtvProperty::new(DTV_MODULATION, PSK_8),
    DtvProperty::new(DTV_VOLTAGE, SEC_VOLTAGE_13),
    DtvProperty::new(DTV_TONE, SEC_TONE_OFF),
    DtvProperty::new(DTV_INVERSION, INVERSION_AUTO),
    DtvProperty::new(DTV_SYMBOL_RATE, 27500 * 1000),
    DtvProperty::new(DTV_INNER_FEC, FEC_AUTO),
    DtvProperty::new(DTV_PILOT, PILOT_AUTO),
    DtvProperty::new(DTV_ROLLOFF, ROLLOFF_35),
    DtvProperty::new(DTV_TUNE, 0),
];

let fe = FeDevice::open_rw(0, 0)?;
fe.set_properties(&cmdseq)?;

前端信息

let fe = FeDevice::open_ro(0, 0)?;
println!("{}", &fe);

前端状态

let fe = FeDevice::open_ro(0, 0)?;
let mut status = FeStatus::default();
status.read(&fe)?;
println!("{}", &status);