Constant AV_PKT_DATA_S12M_TIMECODE

pub const AV_PKT_DATA_S12M_TIMECODE: u32 = 30; // 30u32

Timecode which conforms to SMPTE ST 12-1:2014. The data is an array of 4 uint32_t where the first uint32_t describes how many (1-3) of the other timecodes are used. The timecode format is described in the documentation of av_timecode_get_smpte_from_framenum() function in libavutil/timecode.h.