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fix: ignore non-pes packets in the rollover stream
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Dzianis Dashkevich committed Nov 16, 2023
1 parent 0b0e5a9 commit da2cc7f
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14 changes: 14 additions & 0 deletions lib/m2ts/timestamp-rollover-stream.js
Original file line number Diff line number Diff line change
Expand Up @@ -53,6 +53,20 @@ var TimestampRolloverStream = function(type) {
this.type_ = type || TYPE_SHARED;

this.push = function(data) {
/**
* Rollover stream expects data from elementary stream.
* Elementary stream can push forward 2 types of data
* - Parsed Video/Audio/Timed-metadata PES (packetized elementary stream) packets
* - Tracks metadata from PMT (Program Map Table)
* Rollover stream expects pts/dts info to be available, since it stores lastDTS
* We should ignore non-PES packets since they may override lastDTS to undefined.
* lastDTS is important to signal the next segments
* about rollover from the previous segments.
*/
if (data.type === 'metadata') {
this.trigger('data', data);
return;
}

// Any "shared" rollover streams will accept _all_ data. Otherwise,
// streams will only accept data that matches their type.
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