Frozen video frame for entire duration of segment while audio keeps playing

[augustalfredsson]

What version of Hls.js are you using?

1.6.13

What browser (including version) are you using?

Dia 1.1.0 (Chromium Engine Version 141.0.7390.108)

What OS (including version) are you using?

macOS 15.6.1

Test stream

Can share the stream link privately.

Configuration

{
  "debug": true,
  "enableWorker": true,
  "lowLatencyMode": false,
  "backBufferLength": 10
}

Additional player setup steps

No response

Checklist

• The issue observed is not already reported by searching on Github under https://github.com/video-dev/hls.js/issues
• The issue occurs in the stable client (latest release) on https://hlsjs.video-dev.org/demo and not just on my page
• The issue occurs in the latest client (main branch) on https://hlsjs-dev.video-dev.org/demo and not just on my page
• The stream has correct Access-Control-Allow-Origin headers (CORS)
• There are no network errors such as 404s in the browser console when trying to play the stream

Steps to reproduce

The playlist has differing segment lengths. Here's an excerpt with the first 6 items:

#EXTM3U
#EXT-X-VERSION:6
#EXT-X-PLAYLIST-TYPE:EVENT
#EXT-X-TARGETDURATION:8
#EXT-X-MEDIA-SEQUENCE:0
#EXTINF:4.003999
https://<redacted>/item-00000000
#EXTINF:4.004011
https://<redacted>/item-00000001
#EXTINF:4.003999
https://<redacted>/item-00000002
#EXTINF:4.003999
https://<redacted>/item-00000003
#EXTINF:4.004011
https://<redacted>/item-00000004
#EXTINF:4.003999
https://<redacted>/item-00000005
#EXTINF:4.004011
https://<redacted>/item-00000006
#EXTINF:4.003999
...

The spot where we've experienced the issue the most is between segments 250 and 251, which have different segment lengths:

#EXTINF:4.003999
https://<redacted>/item-00000250
#EXTINF:4.004011
https://<redacted>/item-00000251

We can unfortunately not share the stream publicly, but we can share it privately if needed.

To reproduce:

1. Open the stream in the hls demo player.
2. Play the video at a timestamp somewhere in the middle of in the stream.
3. Seek backwards 10s.
4. The video will play during the current segment of the new timestamp and then it will freeze when the next segment starts.

It only happens around 20% of the time you load page/stream. When it happens, it happens every time you play that timestamp in the video.

Expected behaviour

Video segment should play just like the audio is playing.

What actually happened?

Video frame freezes for the entire duration of the segment.

Console output

base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 276 of level 0 (frag:[1107.925-1111.929])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 276 of level 0 (frag:[1107.925-1111.929] > buffer:[1083.904-1111.929])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 277 of level 0 (frag:[1111.915-1115.919]) cc: 0 [0-1466], target: 1111.929
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1097.763
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1099.170, state: FRAG_LOADING, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1099.170, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1099.170, state: IDLE, in buffer
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 277 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 277 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 277 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 277 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 277 of level 0 (frag:[1111.929-1115.933])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 277 of level 0 (frag:[1111.929-1115.933] > buffer:[1083.904-1115.933])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 278 of level 0 (frag:[1115.925-1119.929]) cc: 0 [0-1466], target: 1115.933
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1099.170
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 278 of level 0
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1100.538, state: FRAG_LOADING, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1100.538, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1100.538, state: IDLE, in buffer
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 278 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 278 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 278 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 278 of level 0 (frag:[1115.933-1119.937])
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1100.538
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 278 of level 0 (frag:[1115.933-1119.937] > buffer:[1083.904-1119.937])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 279 of level 0 (frag:[1119.936-1123.940]) cc: 0 [0-1466], target: 1119.937
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 279 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 279 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 279 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 279 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 279 of level 0 (frag:[1119.937-1123.941])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 279 of level 0 (frag:[1119.937-1123.941] > buffer:[1083.904-1123.941])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 280 of level 0 (frag:[1123.925-1127.929]) cc: 0 [0-1466], target: 1123.941
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 280 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 280 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 280 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 280 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 280 of level 0 (frag:[1123.941-1127.945])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 280 of level 0 (frag:[1123.941-1127.945] > buffer:[1083.904-1127.945])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 281 of level 0 (frag:[1127.936-1131.940]) cc: 0 [0-1466], target: 1127.945
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 281 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 281 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 281 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 281 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 281 of level 0 (frag:[1127.945-1131.949])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 281 of level 0 (frag:[1127.945-1131.949] > buffer:[1083.904-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1100.614, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1100.614, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1100.614, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1100.614
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1098.181, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1098.181, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1098.181, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1096.015, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1096.015, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1096.015, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1096.015
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1092.291, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1092.291, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1092.291, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1092.291
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1087.008, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1087.008, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1087.008, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1083.170, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1083.170, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1083.170, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 269 of level 0 (frag:[1079.897-1083.901]) cc: 0 [0-1466], target: 1083.17
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1079.293, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1079.293, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1079.293, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1075.455, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1075.455, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1075.455, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1072.794, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1072.794, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1072.794, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1071.046, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1071.046, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1071.046, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 269 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1079.8965676666667
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 269 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 269 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 269 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 269 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 269 of level 0 (frag:[1079.897-1083.901])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1069.260, state: PARSED, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1069.260, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1069.260, state: IDLE, out of buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 269 of level 0 (frag:[1079.897-1083.901] > buffer:[1079.915-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 266 of level 0 (frag:[1067.885-1071.889]) cc: 0 [0-1466], target: 1069.26
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1067.702, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1067.702, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1067.702, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 266 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1067.8845576666665
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 266 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 266 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 266 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 266 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 266 of level 0 (frag:[1067.885-1071.889])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 266 of level 0 (frag:[1067.885-1071.889] > buffer:[1067.904-1071.889][1079.915-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 265 of level 0 (frag:[1063.881-1067.885]) cc: 0 [0-1466], target: 1067.702
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1066.372, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1066.372, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1066.372, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 265 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1063.8805445555556
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 265 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 265 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 265 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 265 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 265 of level 0 (frag:[1063.881-1067.885])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 265 of level 0 (frag:[1063.881-1067.885] > buffer:[1063.893-1071.889][1079.915-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 267 of level 0 (frag:[1071.872-1075.876]) cc: 0 [0-1466], target: 1071.889
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1065.079, state: FRAG_LOADING, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1065.079, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1065.079, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1065.079
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 267 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1071.872
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 267 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 267 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 267 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 267 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 267 of level 0 (frag:[1071.889-1075.893])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1063.749, state: PARSED, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1063.749, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1063.749, state: IDLE, out of buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 267 of level 0 (frag:[1071.889-1075.893] > buffer:[1063.893-1075.893][1079.915-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 264 of level 0 (frag:[1059.877-1063.881]) cc: 0 [0-1466], target: 1063.749
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1062.457, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1062.457, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1062.457, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 264 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1059.8765454444444
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 264 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 264 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 264 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 264 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 264 of level 0 (frag:[1059.877-1063.881])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 264 of level 0 (frag:[1059.877-1063.881] > buffer:[1059.883-1075.893][1079.915-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 268 of level 0 (frag:[1075.883-1079.897]) cc: 0 [0-1466], target: 1075.893
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1061.089, state: FRAG_LOADING, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1061.089, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1061.089, state: IDLE, in buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 268 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1075.8826666666666
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 268 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 268 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 268 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 268 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 268 of level 0 (frag:[1075.893-1079.897])
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1061.089
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 268 of level 0 (frag:[1075.893-1079.897] > buffer:[1059.883-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1059.759, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1059.759, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1059.759, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 263 of level 0 (frag:[1055.873-1059.877]) cc: 0 [0-1466], target: 1059.759
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1058.581, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1058.581, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1058.581, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 263 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1055.8725454444443
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 263 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 263 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 263 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 263 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 263 of level 0 (frag:[1055.873-1059.877])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1057.213, state: PARSED, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1057.213, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1057.213, state: IDLE, out of buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 263 of level 0 (frag:[1055.873-1059.877] > buffer:[1055.893-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1057.213
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1055.768, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1055.768, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1055.768, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 262 of level 0 (frag:[1051.869-1055.873]) cc: 0 [0-1466], target: 1055.768
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1054.704, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1054.704, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1054.704, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 262 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1051.8685334444444
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 262 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 262 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 262 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 262 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 262 of level 0 (frag:[1051.869-1055.873])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 262 of level 0 (frag:[1051.869-1055.873] > buffer:[1051.883-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1053.298, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1053.298, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1053.298, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1053.298
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1051.664, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1051.664, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1051.664, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 261 of level 0 (frag:[1047.865-1051.869]) cc: 0 [0-1466], target: 1051.664
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1050.638, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1050.638, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1050.638, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 261 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1047.8645343333333
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 261 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1049.194, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1049.194, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1049.194, state: IDLE, out of buffer
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 261 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 261 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 261 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 261 of level 0 (frag:[1047.865-1051.869])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 261 of level 0 (frag:[1047.865-1051.869] > buffer:[1047.872-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1049.194
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1047.407, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1047.407, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1047.407, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 260 of level 0 (frag:[1043.861-1047.865]) cc: 0 [0-1466], target: 1047.407
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 260 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1043.8605223333334
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 260 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 260 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 260 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 260 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 260 of level 0 (frag:[1043.861-1047.865])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1046.153, state: PARSED, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1046.153, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1046.153, state: IDLE, out of buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 260 of level 0 (frag:[1043.861-1047.865] > buffer:[1043.861-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1045.089, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1045.089, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1045.089, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1045.089
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1043.759, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1043.759, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1043.759, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 259 of level 0 (frag:[1039.857-1043.861]) cc: 0 [0-1466], target: 1043.759
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 259 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1039.8565232222222
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 259 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 259 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 259 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 259 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 259 of level 0 (frag:[1039.857-1043.861])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1042.201, state: PARSED, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1042.201, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1042.201, state: IDLE, out of buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 259 of level 0 (frag:[1039.857-1043.861] > buffer:[1039.872-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1041.061, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1041.061, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1041.061, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1041.061
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1039.768, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1039.768, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1039.768, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 258 of level 0 (frag:[1035.853-1039.857]) cc: 0 [0-1466], target: 1039.768
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1038.476, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1038.476, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1038.476, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 258 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1035.852523222222
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 258 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 258 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 258 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 258 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 258 of level 0 (frag:[1035.853-1039.857])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 258 of level 0 (frag:[1035.853-1039.857] > buffer:[1035.861-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1037.184, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1037.184, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1037.184, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1037.184
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1035.664, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1035.664, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1035.664, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 257 of level 0 (frag:[1031.849-1035.853]) cc: 0 [0-1466], target: 1035.664
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 257 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1031.8485112222222
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 257 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1034.448, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1034.448, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1034.448, state: IDLE, out of buffer
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 257 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 257 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 257 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 257 of level 0 (frag:[1031.849-1035.853])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 257 of level 0 (frag:[1031.849-1035.853] > buffer:[1031.851-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1033.118, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1033.118, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1033.118, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1033.118
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1031.749, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1031.749, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1031.749, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 256 of level 0 (frag:[1027.845-1031.849]) cc: 0 [0-1466], target: 1031.749
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 256 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1027.844512111111
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 256 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 256 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 256 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 256 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 256 of level 0 (frag:[1027.845-1031.849])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 256 of level 0 (frag:[1027.845-1031.849] > buffer:[1027.861-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1031.749
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1030.533, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1030.533, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1030.533, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1030.533
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1029.241, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1029.241, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1029.241, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1029.241
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1027.987, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1027.987, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1027.987, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1027.987
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1026.923, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1026.923, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1026.923, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 255 of level 0 (frag:[1023.841-1027.845]) cc: 0 [0-1466], target: 1026.923
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1025.517, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1025.517, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1025.517, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 255 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1023.8405121111111
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 255 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 255 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 255 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 255 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 255 of level 0 (frag:[1023.841-1027.845])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 255 of level 0 (frag:[1023.841-1027.845] > buffer:[1023.851-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1023.920, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1023.920, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1023.920, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1023.920
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1023.312, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1023.312, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1023.312, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 254 of level 0 (frag:[1019.837-1023.841]) cc: 0 [0-1466], target: 1023.312
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1022.286, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1022.286, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1022.286, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 254 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1019.8365001111111
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 254 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1020.690, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1020.690, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1020.690, state: IDLE, out of buffer
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 254 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 254 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 254 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 254 of level 0 (frag:[1019.837-1023.841])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1020.082, state: PARSED, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1020.082, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1020.082, state: IDLE, in buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 254 of level 0 (frag:[1019.837-1023.841] > buffer:[1019.840-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1020.082
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1019.360, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1019.360, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1019.360, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 253 of level 0 (frag:[1015.833-1019.837]) cc: 0 [0-1466], target: 1019.36
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 253 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1015.832501
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 253 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 253 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 253 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 253 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 253 of level 0 (frag:[1015.832-1019.837])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1018.030, state: PARSED, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1018.030, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1018.030, state: IDLE, in buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 253 of level 0 (frag:[1015.832-1019.837] > buffer:[1015.851-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1018.030
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1017.384, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1017.384, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1017.384, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1017.384
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1016.548, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1016.548, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1016.548, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1016.548
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1015.179, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1015.179, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1015.179, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 252 of level 0 (frag:[1011.829-1015.832]) cc: 0 [0-1466], target: 1015.179
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 252 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1011.828501
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 252 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1014.077, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1014.077, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1014.077, state: IDLE, out of buffer
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 252 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 252 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 252 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 252 of level 0 (frag:[1011.828-1015.832])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 252 of level 0 (frag:[1011.828-1015.832] > buffer:[1011.840-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1012.747, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1012.747, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1012.747, state: IDLE, in buffer
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1012.747
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1011.417, state: IDLE, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1011.417, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1011.417, state: IDLE, out of buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 251 of level 0 (frag:[1007.824-1011.828]) cc: 0 [0-1466], target: 1011.417
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1010.239, state: FRAG_LOADING, out of buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1010.239, state: STOPPED, out of buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1010.239, state: IDLE, out of buffer
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 251 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1007.824489
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 251 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 251 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 251 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 251 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 251 of level 0 (frag:[1007.824-1011.828])
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1008.681, state: PARSED, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1008.681, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1008.681, state: IDLE, in buffer
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 251 of level 0 (frag:[1007.824-1011.828] > buffer:[1007.829-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1008.681
base-stream-controller.ts:355 [log] > [stream-controller]: Media seeking to 1007.730, state: IDLE, in buffer
base-stream-controller.ts:355 [log] > [audio-stream-controller]: Media seeking to 1007.730, state: STOPPED, in buffer
base-stream-controller.ts:355 [log] > [subtitle-stream-controller]: Media seeking to 1007.730, state: IDLE, in buffer
base-stream-controller.ts:965 [log] > [stream-controller]: Loading main sn: 250 of level 0 (frag:[1003.820-1007.824]) cc: 0 [0-1466], target: 1007.73
base-stream-controller.ts:2230 [log] > [stream-controller]: IDLE->FRAG_LOADING
transmuxer-interface.ts:238 [log] > [transmuxer-interface]: Starting new transmux session for main sn: 250 level: 0 id: 1
        discontinuity: false
        trackSwitch: false
        contiguous: false
        accurateTimeOffset: true
        timeOffset: 1003.8204898888889
        initSegmentChange: false
base-stream-controller.ts:537 [log] > [stream-controller]: Loaded main sn: 250 of level 0
transmuxer-interface.ts:396 [log] > [mp4-remuxer]: reset next timestamp
base-stream-controller.ts:2230 [log] > [stream-controller]: FRAG_LOADING->PARSING
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "video" append sn: 250 of level 0 cc: 0
buffer-controller.ts:952 [log] > [buffer-controller]: queuing "audio" append sn: 250 of level 0 cc: 0
transmuxer-interface.ts:396 [log] > [transmuxer.ts]: Flushed main sn: 250 of level 0
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSING->PARSED
base-stream-controller.ts:2177 [log] > [stream-controller]: Parsed main sn: 250 of level 0 (frag:[1003.820-1007.824])
base-stream-controller.ts:768 [log] > [stream-controller]: Buffered main sn: 250 of level 0 (frag:[1003.820-1007.824] > buffer:[1003.840-1131.949])
base-stream-controller.ts:2230 [log] > [stream-controller]: PARSED->IDLE
stream-controller.ts:573 [log] > [stream-controller]: Media seeked to 1007.730

Chrome media internals output

[robwalch]

In the logs there is a seek between each segment load suggesting that you are seeking backwards through the content but I don't see that in the reproduction steps.

[augustalfredsson]

I didn't realise that seeking backwards was a necessary step to reproduce it. It was simply something I needed to do to reach the timestamp in the video, as it's long and pinpointing it on the timeline is difficult.

Now I've tested playing from a timestamp then seeking backwards 10s and it happens 100% of the time. I have not been able to reproduce it without seeking backwards. The steps to reproduce have been updated.

[robwalch]

As a workaround, you can flush the buffer whenever seeking to a point that proceeds a buffered range:

video.addEventListener('seeking', (e) => {
  const startOffset = e.currentTarget.currentTime;
  // It would be better to check that currentTime does not intersect any buffered ranges here:
  if (e.currentTarget.buffered.start(0) > startOffset) {
    hls.trigger(Hls.Events.BUFFER_FLUSHING, {
      type: 'video',
      startOffset,
      endOffset: Infinity
    });
  }
});

HLS.js has frontBufferFlushThreshold which takes a value > 0, but that only flushes secondary buffered ranges.

[augustalfredsson]

Thanks, the workaround works.

Do you think this happens because the difference in segment length is so small? I don't seem to have issues on games where the difference is bigger than the 12 microseconds delta on the playlist where i encounter the issue.

[robwalch]

Is this with mp4 or ts segments? I could be an issue with the MSE implementation detecting overlap where this isn't - perhaps related to the overlap of decode and presentation timestamps (composition time) or for MPEG2TS remuxing, hls.js aiming for presentation times rather than decode times. Either way, buffering sequentially forward is always going to be safe, but it means removing the forward buffer when seeking back into an unbuffered range.

[augustalfredsson]

This is with ts segments.