HLS With discontinuity stuck in buffer

We are using JWPlayer 8.9.0 and we are trying to insert advertisements in our videos. We are using EXT-X-DISCONTINUITY but apparently, when we get to the point of starting our advertising, the player stops showing a buffer status.

This is an example of our playlist:

#EXTM3U #EXT-X-VERSION:3 #EXT-X-MEDIA-SEQUENCE:0 #EXT-X-TARGETDURATION:16 #EXT-X-PLAYLIST-TYPE:VOD #EXTINF:14.557178, https://slave2.example.com/hls/output1/output_000.ts #EXTINF:1.376467, https://slave3.example.com/hls/output1/output_001.ts #EXT-X-DISCONTINUITY #EXTINF:8.050244, https://slave2.example.com/hls/HLSad/output_000.ts #EXTINF:4.880200, https://slave2.example.com/hls/HLSad/output_001.ts #EXTINF:7.090889, https://slave2.example.com/hls/HLSad/output_002.ts #EXTINF:5.881267, https://slave2.example.com/hls/output1/output_002.ts #EXTINF:5.672711, https://slave3.example.com/hls/output1/output_003.ts #EXT-X-DISCONTINUITY #EXTINF:8.050244, https://slave2.example.com/hls/HLSad/output_000.ts #EXTINF:4.880200, https://slave2.example.com/hls/HLSad/output_001.ts #EXTINF:7.090889, https://slave2.example.com/hls/HLSad/output_002.ts #EXTINF:5.714422, https://slave2.example.com/hls/output1/output_004.ts #EXTINF:4.755067, https://slave3.example.com/hls/output1/output_005.ts [...] #EXT-X-ENDLIST

This is what the JS console tells us:

[log] > audio sampling rate : 48000 9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > manifest codec:undefined,ADTS data:type:2,sampleingIndex:3[48000Hz],channelConfig:2 9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > parsed codec:mp4a.40.5,rate:48000,nb channel:2 9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > audio sampling rate : 48000 9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > AVC:59 ms overlapping between fragments detected 9512e6e5-eff6-4f75-806f-a367785315b7:1 [log] > Video/PTS/DTS adjusted: 15958/15933,delta:-59 ms

While the Chrome Media console says:

[CODE]1.414 kPlay
{}

17.280 kBufferingStateChanged
{audio_buffering_state: {reason: “DEMUXER_UNDERFLOW”, state: “BUFFERING_HAVE_NOTHING”}}

17.280 kBufferingStateChanged
{,…}
pipeline_buffering_state: {for_suspended_start: false, reason: “DEMUXER_UNDERFLOW”, state: “BUFFERING_HAVE_NOTHING”}
for_suspended_start: false
reason: “DEMUXER_UNDERFLOW”
state: “BUFFERING_HAVE_NOTHING”[/CODE]

Considering that the two videos that we are going to “merge” in the playlist have the same audio / video characteristics (codecs, bitrate, resolution etc.), why is this not working? Thank you

In order to debug this, we’ll need full access to your config and logs through a support ticket. It’ll require some testing on our end to find the issue. Thanks

https://www.wowza.com/support/open-ticket