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Allow pts rollover #19

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Allow pts rollover #19

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2 changes: 2 additions & 0 deletions packages/mpegts-demuxer/CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

## [Unreleased]
### Changed
- PTS is now allowed to decrease between packets, allowing support for timestamp rollovers.

## [0.1.0] - 2021-05-13
### Added
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4 changes: 2 additions & 2 deletions packages/mpegts-demuxer/src/utils/index.ts
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Expand Up @@ -290,7 +290,7 @@ function decodePes(
const pts = decodeTs(mem, ptr + 3)

if (s.has_dts && pts !== s.dts) { s.frame_ticks = pts - s.dts }
if (pts > s.last_pts || !s.has_pts) { s.last_pts = pts }
s.last_pts = pts

if (s.first_pts === 0
&& s.frame_num === (s.content_type === MEDIA_TYPES.video ? 1 : 0)) {
Expand All @@ -308,7 +308,7 @@ function decodePes(
const dts = decodeTs(mem, ptr + 8)

if (s.has_dts && dts > s.dts) { s.frame_ticks = dts - s.dts }
if (pts > s.last_pts || !s.has_pts) { s.last_pts = pts }
s.last_pts = pts

if (s.first_pts === 0
&& s.frame_num === (s.content_type === MEDIA_TYPES.video ? 1 : 0)) {
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