* TS: SCTE-35 streams support (commands only, no descriptors yet) * SEI: Add ATSC cc_data/bar_data/afd_data support in itu35 registered SEI * MP4: Support var

* TS: SCTE-35 streams support (commands only, no descriptors yet) * SEI: Add ATSC cc_data/bar_data/afd_data support in itu35 registered SEI * MP4: Support various flavours of XDCAM (MPEG-2) video * HEVC: time_code SEI support * TS: MHP AIT transport_protocol_descriptor support * Visualization: group long list of values into chunks of four items * MP4: support simple 'udta' boxes from 3GPP spec * MP4: Add 'av1C' (AV1CodecConfigurationBox), 'dOps' (OpusSpecificBox), 'dac4' (AC4SpecificBox) boxes support * MP4: basic recognition of compressed movie atoms ('cmov', 'dcom', 'cmvd') * Visualization: Print number of bytes in the utf8 string * TS: fix tag&length display for MHP AIT descriptors