Struct x42ltc_sys::LTCFrameExt

#[repr(C)]
pub struct LTCFrameExt {
    pub ltc: LTCFrame,
    pub off_start: ltc_off_t,
    pub off_end: ltc_off_t,
    pub reverse: c_int,
    pub biphase_tics: [f32; 80],
    pub sample_min: ltcsnd_sample_t,
    pub sample_max: ltcsnd_sample_t,
    pub volume: f64,
}

Extended LTC frame - includes audio-sample position offsets, volume, etc

Note: For TV systems, the sample in the LTC audio data stream where the LTC Frame starts is not necessarily at the same time as the video-frame which is described by the LTC Frame.

\ref off_start denotes the time of the first transition of bit 0 in the LTC frame.

For 525/60 Television systems, the first transition shall occur at the beginning of line 5 of the frame with which it is associated. The tolerance is ± 1.5 lines.

For 625/50 systems, the first transition shall occur at the beginning of line 2 ± 1.5 lines of the frame with which it is associated.

Only for 1125/60 systems, the first transition occurs exactly at the vertical sync timing reference of the frame. ± 1 line.

Fields

ltc: LTCFrame

< the actual LTC frame. see \ref LTCFrame

off_start: ltc_off_t

< \anchor off_start the approximate sample in the stream corresponding to the start of the LTC frame.

off_end: ltc_off_t

< \anchor off_end the sample in the stream corresponding to the end of the LTC frame.

reverse: c_int

< if non-zero, a reverse played LTC frame was detected. Since the frame was reversed, it started at off_end and finishes as off_start (off_end > off_start). (Note: in reverse playback the (reversed) sync-word of the next/previous frame is detected, this offset is corrected).

biphase_tics: [f32; 80]

< detailed timing info: phase of the LTC signal; the time between each bit in the LTC-frame in audio-frames. Summing all 80 values in the array will yield audio-frames/LTC-frame = (\ref off_end - \ref off_start + 1).

sample_min: ltcsnd_sample_t

< the minimum input sample signal for this frame (0..255)

sample_max: ltcsnd_sample_t

< the maximum input sample signal for this frame (0..255)

volume: f64

< the volume of the input signal in dbFS

Trait Implementations

impl Clone for LTCFrameExt

fn clone(&self) -> LTCFrameExt

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for LTCFrameExt

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for LTCFrameExt

fn default() -> Self

Returns the “default value” for a type.

impl Copy for LTCFrameExt