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fix(m2ts): PES packets missing timestamp rollover #437

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fix(m2ts): PES packets missing timestamp rollover #437

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17 changes: 16 additions & 1 deletion lib/m2ts/m2ts.js
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Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,8 @@
var Stream = require('../utils/stream.js'),
CaptionStream = require('./caption-stream'),
StreamTypes = require('./stream-types'),
TimestampRolloverStream = require('./timestamp-rollover-stream').TimestampRolloverStream;
TimestampRolloverStream = require('./timestamp-rollover-stream').TimestampRolloverStream,
handleRollover = require('./timestamp-rollover-stream').handleRollover;

// object types
var TransportPacketStream, TransportParseStream, ElementaryStream;
Expand Down Expand Up @@ -309,6 +310,8 @@ ElementaryStream = function() {
size: 0
},
programMapTable,
referenceDTS,
referencePTS,
parsePes = function(payload, pes) {
var ptsDtsFlags;
const startPrefix = payload[0] << 16 | payload[1] << 8 | payload[2]
Expand Down Expand Up @@ -360,6 +363,18 @@ ElementaryStream = function() {
pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs
}
}

if (referencePTS === undefined) {
referencePTS = pes.pts;
}

if (referenceDTS === undefined) {
referenceDTS = pes.dts;
}

pes.dts = handleRollover(pes.dts, referenceDTS);
pes.pts = handleRollover(pes.pts, referencePTS);

// the data section starts immediately after the PES header.
// pes_header_data_length specifies the number of header bytes
// that follow the last byte of the field.
Expand Down