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It's not clear why we're currently outputting the format in both init() and consume() - it seems likely that this was accidentally introduced in <unknown commit> when we started outputting the format in consume() but didn't remove it from init(). The SCTE-35 TsExtractorTest doesn't pass with the current code because when it seeks back to the beginning of the file init() is not called again so the second pass through only sees one sample (and ExtractorAsserts checks that seeking back to 0 produces the same output as reading the file from the beginning). I generated the SCTE-35 sample using TSDuck's tsp command: $ tsp --add-input-stuffing 1/10 \ -I file testdata/src/test/assets/ts/sample.ts \ -P pmt --service 1 --add-programinfo-id 0x43554549 --add-pid 600/0x86 \ -P spliceinject --service 1 --files scte_35.xml --wait-first-batch \ -P filter --negate --pid 0x1FFF \ -O file testdata/src/test/assets/ts/sample_scte35.ts This was adapted from the instructions in section 5.2.24.1 of the TSDuck user manual: https://tsduck.io/download/docs/tsduck.pdf PiperOrigin-RevId: 296217084