scte104

ANSI/SCTE 104 2023 — Automation System to Compression System Communications Applications Program Interface (API).

Parses and builds SCTE 104 messages: single_operation_message and multiple_operation_message with all DPI operations from the opID allocation tables (splice, time_signal, descriptor inserts, segmentation, encryption, schedule, control words, and more).

Usage

use scte104::{SingleOperationMessage, MultipleOperationMessage};
use scte104::operations::{
    AnyOperation, Operation, AnySingleOperation,
    splice_request::{SpliceRequest, SpliceInsertType},
    inject_section_data::InjectSectionData,
};
use scte104::time::Timestamp;
use broadcast_common::{Parse, Serialize};

// Build a single_operation_message (basic response).
let msg = SingleOperationMessage::new_response(
    0x0007, 0x0000, 0xFFFF, 0, 1, 42, 0,
    AnySingleOperation::InjectResponse(
        scte104::operations::InjectResponse { message_number: 42 },
    ),
);
let bytes = msg.to_bytes();
let parsed = SingleOperationMessage::parse(&bytes).unwrap();
assert_eq!(msg, parsed);

// Build a multiple_operation_message with splice + time_signal.
let ops = vec![
    Operation {
        op_id: 0x0101,
        data: AnyOperation::SpliceRequest(SpliceRequest {
            splice_insert_type: SpliceInsertType::SpliceStartNormal,
            splice_event_id: 42,
            unique_program_id: 1,
            pre_roll_time: 5000,
            break_duration: 300,
            avail_num: 0,
            avails_expected: 0,
            auto_return_flag: 1,
            not_an_entry_flag: 0,
        }),
    },
];
let mom = MultipleOperationMessage::new(
    0, 1, 42, 0, 0,
    Timestamp::None,
    ops,
);
let bytes = mom.to_bytes();
let parsed = MultipleOperationMessage::parse(&bytes).unwrap();
assert_eq!(mom, parsed);

Features

std (default) — links the standard library.
serde — derives Serialize on all types.

Without std, the crate is #![no_std] + alloc only.

Examples

Run the bundled examples:

cargo run -p scte104 --example build_splice
cargo run -p scte104 --example multi_op_round_trip

Coverage

All opID values from ANSI/SCTE 104 2023 Tables 8-3 and 8-4:

Basic (single_operation_message): general_response, init_request, init_response, alive_request, alive_response, inject_response, inject_complete_response.

Normal/Supplemental/Control (multiple_operation_message): inject_section_data, splice_request, splice_null_request, start_schedule_download, time_signal_request, transmit_schedule, component_mode_DPI, encrypted_DPI, insert_descriptor, insert_DTMF_descriptor, insert_avail_descriptor, insert_segmentation_descriptor, proprietary_command, schedule_component_mode, schedule_definition, insert_tier, insert_time_descriptor, insert_audio_descriptor, insert_audio_provisioning, insert_alternate_break_duration, delete_ControlWord, update_ControlWord.

License